and Marlaine C. Smith2
(1)
Division of General Internal Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA
(2)
Christine E. Lynn College of Nursing, Florida Atlantic University, Boca Raton, FL, USA
Abstract
Complementary and alternative medicine (CAM) encompasses diverse medical and health care systems, practices, and products that are not generally considered part of conventional medicine. Conventional medicine (also called Western or allopathic medicine) is medicine as practiced by holders of M.D. (medical doctor) and D.O. (doctor of osteopathy) degrees and by allied health professionals, such as physical therapists, psychologists, and registered nurses. The boundaries between CAM and conventional medicine are not absolute, and specific CAM practices may, over time, become widely accepted. Despite the fact that rigorous, well-designed clinical trials for many CAM therapies are often lacking and, therefore, the safety and effectiveness of many CAM therapies are uncertain, CAM use is common, particularly among individuals with chronic pain and advanced illness. This chapter presents evidence regarding selected CAM modalities in the settings of chronic pain and palliative care. The presentation of the evidence is organized according to the following NCCAM-specified categories: (1) mind–body practices, (2) manipulative and body-based practices, (3) manipulation of energy fields, and (4) biologically based therapies. Where sufficient data are available, the evidence is presented in table format. For some modalities, little evidence is available. For these modalities, the existing evidence is described in the text only. Despite many years of CAM practice and common usage, rigorous scientific research on CAM therapies has occurred only relatively recently. CAM research is limited by methodologic and ethical issues. Gaps in research are thus the norm and the current evidence base is insufficient.
Complementary and Alternative Medicine (CAM)
What Is Complementary and Alternative Medicine (CAM)?
Complementary and alternative medicine (CAM) encompasses diverse medical and health care systems, practices, and products that are not generally considered part of conventional medicine. Conventional medicine (also called Western or allopathic medicine) is medicine as practiced by holders of M.D. (medical doctor) and D.O. (doctor of osteopathy) degrees and by allied health professionals, such as physical therapists, psychologists, and registered nurses. The boundaries between CAM and conventional medicine are not absolute, and specific CAM practices may, over time, become widely accepted. “Complementary medicine” refers to use of CAM together with conventional medicine, such as using acupuncture in addition to usual care to help lessen pain. “Alternative medicine” refers to use of CAM instead of conventional medicine. The characterization of specific health systems, practices, and products as within the purview of CAM changes continually as new CAMs are introduced and therapies with scientifically demonstrated safety and efficacy are integrated into conventional medical care (http://nccam.nih.gov/health/whatiscam/).
The National Center for Complementary and Alternative Medicine (NCCAM) groups CAM into three primary categories: (1) natural products, which includes use of a variety of herbal medicines (also known as botanicals), vitamins, minerals, and other “natural products” as well as probiotics; (2) mind–body practices, which focus on the interactions among the brain, mind, body, and behavior, with the intent to use the mind to affect physical functioning and promote health. Many CAM practices embody this concept, including meditation, yoga, acupuncture, deep-breathing exercises, guided imagery, qi gong, and tai chi. Of note, while acupuncture is considered to be a part of mind–body medicine, it is also a component of energy medicine, manipulative and body-based practices, and traditional Chinese medicine; and (3) manipulative and body-based practices, which include spinal manipulation (chiropractic) and massage therapy (MT). Other CAM practices include: (1) manipulation of energy fields to influence health (e.g., healing touch, Reiki, therapeutic touch (TT), magnet therapy); (2) movement therapy (e.g., pilates); (3) traditional healers (e.g., Native American healers); and (4) whole medical systems, which are complete systems of theory and practice that have evolved over time in different cultures and apart from conventional medicine (e.g., traditional Chinese medicine, Ayurvedic medicine) (http://nccam.nih.gov/health/whatiscam/).
How Prevalent Is Use of CAM?
Despite the fact that rigorous, well-designed clinical trials for many CAM therapies are often lacking and, therefore, the safety and effectiveness of many CAM therapies are uncertain, CAM use is common, particularly among individuals with chronic pain and advanced illness. Use of CAM therapies is gaining acceptance in mainstream venues. In 2002, the White House Commission on Complementary and Alternative Medicine recommended integration of CAM therapies that are considered safe and effective into health care throughout the nation (White House Commission on Complementary and Alternative Medicine 2010).
The 2007 National Health Interview Survey (NHIS) found that CAM use is prevalent and increasing. Thirty-eight percent of U.S. adults and 12% of children reported CAM use in 2007, up from 36% of adults surveyed in the 2002 NHIS (Barnes et al. 2007). In 1996, there were an estimated 630 million visits to CAM providers, exceeding the number of visits to primary care physicians (Eisenberg 2005). A survey of patients hospitalized on surgical services in Adelaide, South Australia revealed that 90% acknowledged using some CAM modality, with the most commonly used modalities being biologically based therapies, including herbal and nonherbal preparations (69%) and mind–body interventions (65%), followed by manipulative and body-based methods (63%) (Shoroni and Abron 2010).
Use of CAM is more prevalent among those with advanced or chronic illnesses than is seen in the general public. One review found that CAM use in cancer patients has been reported to be between 7 and 64% with an average of 31% (Eliott et al. 2008). Sixty-nine percent of oncology patients at one cancer center reported having used CAM (excluding use of spiritual practices and psychotherapy) in a study published in 2000 (Richardson et al. 2000). The most commonly used CAM modalities among cancer patients are massage, nutrition, aromatherapy, relaxation, and reflexology (Lewith et al. 2002). In a study of patients undergoing radiation therapy for various cancers at rural cancer centers in Minnesota, CAM use was reported by 95% of respondents when including prayer and exercise and 92% when these modalities were excluded. The five most commonly used CAM approaches were spiritual healing/prayer (62%), exercise (20%), music (18%), chiropractics (16%), and meditation (13%) (Rausch et al. 2011). Similar prevalence of CAM use has been found in other studies (Lim et al. 2010; Ndao-Brumblay and Green 2010). Patients with cancer report using CAM for boosting the immune system, relieving pain, and controlling side effects related to the cancer itself or its treatment (Mansky & Wallerstedt 2006).
Despite evidence of common use of CAM by cancer patients, oncologists refer patients for CAM therapy less often than physicians from other specialties and patients report that they do not disclose use of CAM to their health care providers (Rausch et al. 2011; Lee et al. 2008). This disconnect raises the concern that the use of CAM therapies by patients with cancer is likely occurring outside the setting of oncology care centers and without the knowledge of or approval by oncologists. There are multiple barriers to integrating CAM with conventional medical care (Ben-Arye et al. 2008). Patients themselves may hinder this integration, feeling that CAM “efficacy intrinsically requires faith, that CAM is solely for cure, that it is for specific types of people, or that it implies a lack of faith in the medical profession” (Eliott et al. 2008).
Health care providers’ attitudes may impede integration of CAM into conventional medical care. Fadlon et al. found physicians had respect for what CAM could provide but were often concerned about hazards of CAM as well as ulterior motives of CAM practitioners (Fadlon et al. 2008). Indeed, some CAM therapies may interact with other more conventional therapies. For example, St John’s wort, Ginkgo biloba, and ginseng have been shown to have potentially adverse interactions with chemotherapeutic agents as well as other pharmaceuticals commonly used for patients with cancer, such as warfarin, cyclosporin, and anxiolytics (Lee et al. 2008). Health care providers also report concern about potential liability they may face as a consequence of providing or referring CAM therapies for patients (Hirschkorn & Bourgeault 2008). Evidence-based guidelines recommend that patients be asked about use of CAM and that evidence-based advice be given about the advantages and disadvantages of CAM therapies (Cassileth et al. 2007). Proposed recommendations for effectively discussing CAM with patients include ten steps: (1) understand, (2) respect, (3) ask, (4) explore, (5) respond, (6) discuss, (7) advise, (8) summarize, (9) document, and (10) monitor. A critical feature of this recommended strategy is that the health care provider does not have to be an expert in CAM in order to have an effective discussion about CAM with patients (Schofield et al. 2010).
Insurance coverage may influence whether or not patients pursue CAM therapies. The NHIS 2007 survey found that for adults younger than age 65 years, those with private health insurance were more likely than those with public health insurance or those without health insurance to use biologically based, body-based, and mind–body therapies (Barnes et al. 2007). In addition, organizational factors, such as lack of space or resources, as well as organizational policies which preclude incorporation of CAM practices have been cited as barriers to integration of CAM into hospice (Hirschkorn & Bourgeault 2008).
Despite these barriers, Lewis et al. found that a wide variety of CAM therapies can be successfully integrated into hospice settings, with preliminary data suggesting positive outcomes for patients and family members (Lewis et al. 2003). More than 80% of respondents to a national survey of hospices reported that they would support integration of CAM into their organization if not already present (Corbin).
Evidence for Use of CAM in Chronic Pain and Palliative Care
This section presents evidence regarding selected CAM modalities in the settings of chronic pain and palliative care. The modalities discussed were selected so as to not substantially overlap with other chapters in this edited volume. The presentation of the evidence is organized according to the following NCCAM-specified categories: (1) mind–body practices, (2) manipulative and body-based practices, (3) manipulation of energy fields, and (4) biologically based therapies. Where sufficient data are available, the evidence is presented in table format. For some modalities, little evidence is available. For these modalities, the existing evidence is described in the text only.
Despite many years of CAM practice and common usage, rigorous scientific research on CAM therapies has occurred only relatively recently. CAM research is also limited by methodologic and ethical issues. Gaps in research are thus the norm and the current evidence base is insufficient.
Mind–Body Practices
A number of practices may be considered under the umbrella of “mind–body” practice, including biofeedback, progressive muscle relaxation, meditation, guided imagery, and hypnosis, as well as yoga and acupuncture. A structured review of mind–body interventions for older adults with chronic nonmalignant pain found that there were few randomized clinical trials with small numbers of participants. This review notes that while these interventions are feasible in this population and likely safe, with modifications tailored for older adults, there is not yet sufficient evidence to conclude that such interventions reduce chronic nonmalignant pain in older adults (Morone & Greco 2007). A summary of 28 systematic reviews found strong evidence for the use of mind–body therapies as adjunctive therapy for cancer patients given demonstrated efficacy in improving mood, quality of life, and coping with both the disease and treatment-related side effects. The same summary found strong evidence for use of mind–body therapies as adjunctive or stand-alone therapies for recurrent migraine and tension headaches and as adjunctive therapies in medical management of chronic low back pain (Astin et al. 2003).
Meditation
Meditation entails a systematic mental focus on particular aspects of inner or outer experience. Meditation encompasses practices to increase mental awareness and clarity of mind (concentrative meditation), quiet the ordinary stream of internal mental dialogue (transcendental meditation), or focus attention on the flow of sensations experienced from moment to moment (mindfulness meditation) (Cassileth et al. 2007; Astin et al. 2003). The most commonly studied meditation practice appears to be the Mindfulness-Based Stress Reduction (MBSR) program developed by Jon Kabat-Zinn, usually operationalized as 8–10 weeks of weekly 2½ h sessions. A review of experimental and nonexperimental studies of meditation, such as mindfulness meditation and transcendental meditation for chronic pain, concluded that the limited available data seems to indicate that meditation programs may ease the burden of chronic pain with both short- and long-term effects (Teixeira 2008).
Given limitations of existing data (few randomized clinical trials with small sample sizes and variable control groups), it appears that meditation is a safe, well-accepted intervention for chronic pain and in the palliative care setting, and may have benefits on pain intensity, functional status, quality of life, function, sleep quality, well-being, and mood (anxiety and depression) (Table 35.1). Pending additional research evidence, meditation is likely a viable option for patients with chronic pain or palliative care needs. The American College of Chest Physicians (ACCP) recommends mind–body modalities as part of a multidisciplinary approach to reduce anxiety, mood disturbance, or chronic pain among patients with lung cancer (Cassileth et al. 2007).
Table 35.1
Meditation evidence
References | Measurement | Participants population & N | Design and control group for RCTs | Findings/notes |
---|---|---|---|---|
Ando et al. (2009) | HADS | N = 28 outpatients receiving anticancer chemotherapy, radiation, or medication at a general hospital in Western Japan, age > 20 years. Excluded if experiencing severe pain or other symptoms (>8 on 0–10 numeric rating scale) | Intervention: Mindfulness-Based Stress Reduction (MBSR) – two sessions | HADS: Anxiety and Depression and total scores significantly decreased |
FACIT-Sp (sense of meaning) Measured pre-/post-intervention | FACIT-Sp scores increased | |||
Bruce & Davies (2005) | Qualitative interviews | Hospice in which Western palliative care and Zen Buddhist philosophy are integrated Nine participants (four volunteer caregivers, three staff caregivers, two community members living with HIV/AIDS) who had regular meditation practice × >6 months | Narrative inquiry – in-depth unstructured conversations exploring participants’ experiences of mindfulness awareness and its impact on providing hospice care | Four themes Hospice care as meditation in action: considered caregiving as a significant aspect of their meditation practice Abiding in liminal spaces Seeing differently Resting with groundlessness Argue that mindfulness meditation helps caregivers create a better environment for hospice care |
Carson et al. (2005) | Chronic low back pain (present for at least 6 months) McGill Pain Questionnaire Brief Pain Inventory State-Trait Anger Expression Inventory-II (STAXI-II) Brief Symptom Inventory Daily treatment diary – pain, anger, and tension Measured pre/post and 3 months later | N = 43 patients with chronic low back pain | Randomized to intervention or standard care Intervention: Loving-Kindness Meditation Program – 8 weekly 90-min group sessions that aim to facilitate a positive affective shift | Greater improvements in pain and psychological adjustment in intervention group Dose–response relationship: those who practiced longer with loving-kindness meditation more likely to experience lower pain and less anger |
Morone et al. (2008a) | Chronic low back pain Measures at baseline, postintervention, and 3-months Pain intensity: McGill Pain Questionnaire Short Form (MPQ-SF) Pain acceptance: Chronic Pain Acceptance Questionnaire (CPAQ) Quality of life (QOL): SF-36 Health Status Inventory Physical function: Roland and Morris Questionnaire; Short Physical Performance Battery; SF-36 Physical Function scale | Community-dwelling English-speaking older adults (age >65 years) with chronic moderate low back pain occurring daily or almost every day for at least the past 3 months | Randomized wait-list controlled trial of mindfulness meditation modeled on work of Jon Kabat-Zinn and the Mindfulness-Based Stress Reduction Program (MBSR) Intervention: (n = 19) 8 weekly 90-min mindfulness meditation sessions and meditation homework assignments Controls: (n = 18) no intervention initially – crossed over after 8 weeks | Chronic Pain Acceptance Questionnaire total score significantly improved for meditation group while control group worsened. Activities Engagement subscale of the CPAQ also significantly improved Mean pain scores changed in the expected direction for meditation group for the McGill Pain Questionnaire and the SF-36 Pain Scale, although not significantly Significant improvement in Physical Function Scale of SF-36 Roland Disability Questionnaire changed in expected direction, although not significantly No significant change on Short Physical Performance Battery QOL (summary scores and SF-36) in expected direction, but not significant Majority continued to meditate at 3 month follow-up |
Morone et al. (2008b) | Chronic low back pain | N = 27 adults > age 65 years with chronic low back pain of at least moderate intensity × at least 3 months | Grounded theory to analyze diary entries of participants in an RCT who recorded information about their experiences with mindfulness meditation modeled on work of Jon Kabat-Zinn and the Mindfulness-Based Stress Reduction Program (MBSR) | Findings Pain reduction Improved attention skills Improved sleep resulting from meditation Achieved well-being |
Rosenzweig et al. (2010) | Chronic pain patients SF-36 (HRQoL) Symptom Checklist-90-Revised (SCL-90-R) Administered pre- and post 8-week MBSR intervention | N = 133 patients with chronic pain (6 months or longer): chronic neck/back pain, chronic headaches/migraines, arthritis, fibromyalgia, other. 111 were women | Prospective cohort design Intervention: 8-week MBSR program modeled after Kabat-Zinn | HRQoL outcomes differed substantially across chronic pain conditions – arthritis showed greatest improvements; migraine/headache patients showed least improvement SCL-90-R: chronic pain subgroups experienced medium to large magnitude reductions in psychological distress (except fibromyalgia group which had small to medium reductions) Better adherence to formal home meditation practice associated with reduced overall psychological distress and somatic symptoms, and improvement in self-rated health Chronic back/neck pain and those with two or more comorbid pain conditions experienced largest average improvement in pain severity and functional limitations due to pain |
Schechter et al. (2007) | Functional back pain Pain intensity (VAS) QOL (RAND SF-12) Medication usage Activity level Follow up at least 3–12 months after treatment | N = 51 patients with “functional” back pain | Case series in single physician’s office Program of office visits, written educational materials, structured workbook and educational audio CDs, individual psychotherapy (some cases) | Mean VAS scores for average pain and worst pain and least pain decreased SF-12 Physical health scores increased Medication usage decreased Activity levels increased Participants aged >47 years and in pain for >3 years benefited most |
Zautra et al. (2010) | Thermal pain threshold assessment Visual analogue pain scale (0–10) Positive and negative affect (PANAS) | N = 25 age-matched healthy women N = 27 women with physician-confirmed fibromyalgia | 2 × 2 repeated measures nested design Breathe at normal rate or ½ normal rate during four blocks of four trials | Overall reduction in pain intensity among healthy controls when paced to breathe slowly Greatest effects on ratings of pain stimuli of moderate in comparison to mild intensity Fibromyalgia participants benefited less – ratings of pain intensity unaffected by slow breathing |
Yoga
Yoga combines physical movement, breath control, and meditation with the goal of uniting the mind, body, and spirit for health and self-awareness. Studies of yoga for chronic low back pain and knee osteoarthritis suggest that it may be effective for decreasing pain and fatigue and improving function (Table 35.2). A clinical practice guideline on the diagnosis and treatment of low back pain issued by the American College of Physicians (ACP) and the American Pain society weakly recommends, based on moderate-quality evidence, yoga for patients with chronic or subacute low back pain (Chou et al. 2007). A systematic review of literature examining the impact of yoga on psychological adjustment of cancer patients identified ten studies, six of which were RCTs. Overall study quality was high; limiting factors included lack of long-term data and small sample size. Studies demonstrated improvements in sleep, stress levels, and mood. While a number of positive results were found, the authors concluded that the variability across studies and methodologic drawbacks limit the extent to which yoga can be considered effective for managing psychological symptoms associated with cancer (Smith & Pukall 2009). Yoga thus appears to be a promising intervention for improving psychological symptoms among cancer patients and for improving function among persons with chronic pain.
Table 35.2
Yoga evidence
References | Measurement | Participants population & N | Design and control group for RCTs | Findings/notes |
---|---|---|---|---|
Galantino et al. (2004) | Chronic low back pain Oswestry Disability Index (ODI) at 6 weeks | N = 22 adults with chronic low back pain | Randomized controlled trial Intervention: 1 h of immediate Iyengar yoga-based intervention twice weekly for 6 weeks Control: usual activities during observation period; delayed yoga training | Improved balance and flexibility and decreased disability and depression in yoga group Study not powered to reach statistical significance |
Groessl et al. (2008) | Chronic back pain Outcomes measured at baseline and 10 weeks Pain: single visual numeric scale (0–10) and 5-question severity scale modified from Medical Outcomes Study pain severity scale Energy/fatigue using modified items from Medical Outcomes Study Depression: Center for Epidemiologic Studies Short Depression Scale (CESD-10) Health-Related Quality of Life (HRQOL) – Short-From 12 version 2 (SF12v2) | N = 33 Veterans Administration (VA) patients with chronic back pain | Single group pre–post design Intervention: Weekly yoga sessions × 8 weeks | Significant improvements in pain, depression, energy/fatigue, and SF-12 |
Sapir et al. (2009) | Chronic low back pain Outcome data collected at 6, 12, and 26 weeks Feasibility outcomes Two primary efficacy outcomes at 12 weeks Average pain level for the previous week using 11-point numerical rating scale Back-related function using modified Roland–Morris Disability Questionnaire Secondary outcomes Use of pain medication during the preceding week Global improvement Health-related quality of life (SF-36) | N = 30 adults with chronic low back pain recruited from two community health centers | Pilot randomized controlled trial 12-week protocol of weekly 75-min hatha yoga classes + home practice 30 min daily vs. usual care waitlist control group | Intervention group attended a median of 8 classes; 13 practiced at least once at home One reported increase in back pain with yoga Yoga participants had statistically significant greater reduction in pain intensity and pain medication use at 12 weeks compared to control group Longer term retention and adherence poor |
Sherman et al. (2005) | Chronic low back pain Outcomes measured at 12 and 26 weeks Roland–Morris Disability Questionnaire (RDQ) Symptom bothersomeness score Medication use Back pain-related health care provider visits | N = 101 adults with chronic low back pain | Three-arm randomized controlled trial comparing 6 weeks of Viniyoga, conventional exercise, and a self-care book | RDQ: Viniyoga slightly superior to conventional exercise and moderately superior to a self-care education book at 12 weeks, but only superior to the self-care book at 26 weeks Symptom bothersomeness: Effects similar at 12 weeks for all three interventions; yoga substantially superior to self-care book at 26 weeks Medication use: Yoga associated with decreased use at week 26 No difference in back pain-associated health care provider visits |
Tekur et al. (2008) | Chronic low back pain Outcomes measured within 7 days of intervention Spinal mobility Functional Disability Index (Oswestry low-back pain Disability Index (ODI) | N = 80 women with chronic low back pain | Wait-list randomized controlled trial Intervention: (n = 40) 1-week intensive residential yoga program composed of asanas (physical postures), pranayamas (breathing practices), meditation and didactic and interactive sessions on philosophical concepts of yoga Control: (n = 40) physical exercises under trained physiatrist + didactic and interactive sessions on lifestyle change | Significant reduction (49%) in disability (ODI) in yoga group Spinal flexion improved in both groups – higher effect sizes in yoga group |
Williams et al. (2005a) | Chronic low back pain Outcomes measured baseline, posttreatment, and at 3 months Present Pain Index Pain Disability Index Pain on visual analogue scale | N = 60 adults with chronic low back pain | Randomized controlled trial Intervention: 1½ h Iyengar yoga class weekly × 16 weeks Control: exercise education × 16 weeks | Significant reductions in pain intensity, functional disability, and pain medication usage in the yoga group posttreatment and at 16 months |
Acupuncture
Acupuncture, a CAM modality that originated from traditional Chinese medicine, is based on the theory that one can regulate the flow of “Qi” (vital energy) by stimulation of certain points on the body with needles, heat, or pressure. Stimulation of specific points along the 12 primary and 8 secondary meridians is believed to restore the proper flow of Qi. It appears that the effects of acupuncture are mediated by the nervous system. Evidence includes observations that administration of local anesthesia at acupuncture needle insertion sites completely blocks the immediate analgesic effects of acupuncture and documented neurotransmitter release and changes in brain functional MRI signals during acupuncture (Han 2003; Wu et al. 1999; Berman et al. 2010).
Systematic reviews of the use of acupuncture for chronic low back pain have concluded that while real acupuncture was no more effective than sham acupucture, both real and sham acupuncture were more effective than no treatment and that acupuncture can be a useful supplement to other forms of conventional treatment for low back pain (Yuan et al. 2008; Rubinstein et al. 2010; Chou & Huffman 2007). A clinical practice guideline on the diagnosis and treatment of low back pain issued by the ACP and the American Pain Society weakly recommends, based on moderate-quality evidence, acupuncture for patients with chronic or subacute low back pain (Chou et al. 2007). The North American Spine Society concluded that acupuncture provides better short-term pain relief and functional improvement than no treatment and that the addition of acupuncture to other treatments provides a greater benefit than other treatments alone (Ammendolia et al. 2008). The U.K. National Institute for Health and Clinical Excellence has recommended acupuncture as a treatment option for patients with low back pain (Royal College of General Practitioners 2009).
A systematic review of seven systematic reviews of acupuncture as a treatment for cancer palliation and supportive care found that acupuncture as a treatment of chemotherapy-induced nausea and vomiting is backed by good evidence. Evidence is lacking as to whether acupuncture is superior to other interventions available for treatment of chemotherapy-induced nausea and vomiting (Ernst & Lee 2010). The ACCP recommends acupuncture as a complementary therapy for patients with lung cancer when pain is poorly controlled or when side effects such as neuropathy or xerostomia from other modalities are clinically significant as well as for poorly controlled nausea and vomiting associated with chemotherapy. A trial of acupuncture is recommended by the ACCP for patients with lung cancer who have symptoms such as fatigue, dyspnea, chemotherapy-induced neuropathy, or postthoracotomy pain. The ACCP notes that acupuncture should be performed by qualified practitioners and used cautiously in patients with bleeding tendencies (Cassileth et al. 2007). A Cochrane Review concluded that there is insufficient evidence to recommend the routine use of acupuncture/acupressure for relief of dyspnea in advanced stages of malignant and nonmalignant diseases, recommending further study before they are routinely used in clinical practice (Bausewein et al. 2008). A systematic review of acupressure for symptom management in end-stage renal disease (ESRD) found few well-designed trials. The authors conclude that the small number and suboptimal methodological quality of available studies preclude determination of the therapeutic effects of acupressure for ESRD patients (Kim et al. 2010). Table 35.3 details relevant available evidence.
Table 35.3
Acupuncture evidence
References | Measurement | Participants population & N | Design and control group for RCTs | Findings/notes |
---|---|---|---|---|
Brinkhaus et al. (2006) | Chronic low back pain Outcomes measured at baseline, 8, 26, and 52 weeks Pain intensity Back function Pain Disability Index Emotional aspects of pain Depression scale SF-36 | N = 301 adults with chronic low back pain >6 months, average pain intensity >40 on a 100-mm visual analogue scale in past 7 days | Multicenter, randomized controlled trial Intervention (n = 147): 12 sessions of 30 min duration, each administered over 8 weeks Controls: (1) (N = 75) Sham acupuncture (minimal acupuncture) of same number, frequency, and duration as real acupuncture: and (2) (N = 79) no acupuncture waiting list | Acupuncture more effective in improving pain than no acupuncture No significant differences between acupuncture and sham (minimal) acupuncture |
Jobst et al. (1986) | Modified Borg Scale Oxygen Cost Diagram Shortness of Breath Score 6-min walk mean Measured at baseline and after 3 weeks. | N = 24 adults with chronic obstructive pulmonary disease (COPD) and disabling breathlessness for at least 5 years severely limiting exercise tolerance and compromising performance of activities of daily living | Randomized controlled trial Intervention (n = 12): acupuncture (according to traditional Chinese principles), over 3 weeks, on 13 occasions Control (n = 12): same number of treatments as intervention, needles inserted into nonacupuncture “dead” points | Intervention group demonstrated significantly greater benefit in all subjective scores and in distance walked at 6 min |
Lewith et al. (2004) | Daily breathlessness visual analogue scale at baseline, during first treatment, at washout, and during second treatment St. George’s Respiratory Questionnaire (SGRQ) at baseline and at end of each of the two 3-week treatment periods | N = 36 adults with chronic lung disease (n = 33 with COPD, one with pulmonary fibrosis, two with cystic fibrosis), receiving home care and baseline breathlessness > 60 mm on visual analogue scale | Single-blind, placebo-controlled randomized study with cross-over design. Six treatments over 3 weeks with a 2-week washout period prior to second treatment phase Intervention (n = 16): acupuncture × 20 min plus stud insertion Control (n = 16): Mock TENS at same points for same duration as real acupuncture | Worse breathlessness improved significantly during the study; no significant differences between acupuncture and control |
Maa et al. (1997) | Visual analogue scale breathlessness Borg Scale Bronchitis Emphysema Checklist (BESC) Dyspnea Scale Measured at weeks 1, 6, and 12 | N = 31 adults with COPD beginning a 12-week pulmonary rehabilitation program | Randomized, single-blind pretest–posttest cross-over design Intervention (n = 19): acupressure for 6 weeks, then sham acupressure for 6 weeks Control (n = 12): sham acupressure for 6 weeks, then acupressure for 6 weeks | Real acupressure more effective than sham acupressure for reducing dyspnea |
Vickers et al. (2005) | Numeric Rating Scale every 15 min for 75 min immediately before and 1 h after acupuncture | N = 47 adults with lung or breast cancer and subjective complaint of shortness of breath and ATS Breathlessness Scale >2 | Randomized controlled trial Intervention (n = 25): true acupuncture (single treatment × 15 min) followed by true acupressure 1 h after removal of needles Control (n = 20): placebo acupuncture (single treatment × 15 min using placebo needles) and placebo acupressure | Improvement in NRS in both groups; no differences between the groups |
Witt et al. (2006) | Chronic low back pain Outcomes measured at baseline, 3 and 6 months Back Function (Hannover Function Ability Questionnaire – HFAQ) Low Back Pain Rating Scale Medical Outcomes Study 36-Item Short Form (SF-36) Adjunctive use of analgesics Costs | N = 3,093 adults with chronic low back pain >6 months | Multicenter, randomized controlled trial with a nonrandomized cohort Intervention (n = 1,549): immediate acupuncture; maximum of 15 sessions Control (n = 1,544) delayed acupuncture 3 months later | Acupuncture group demonstrated significant improvements in symptoms and quality of life compared to those who received routine care alone. Acupuncture associated with higher costs but considered cost effective |
Wu et al. (2004) Wu et al. (2007) | Visual Analogue Scale Pulmonary Function Status and Dyspnea Questionnaire (PFDQ-M) Geriatric Depression Scale | N = 44 adults with COPD | Randomized clinical trial Intervention (n = 22): 20 a 16-min acupressure sessions, 5 times per week for 4 weeks Control (n = 22): sham acupressure with same duration and frequency as intervention | Dyspnea and depression scores of true acupressure group improved significantly compared to the control group |
Manipulative and Body-Based Practices
Manipulative and body-based practices focus on moving the bones, joints, and soft tissues of the body and, in doing so, affect the circulatory, lymphatic, neuroendocrine, and musculoskeletal systems. Manipulative/body-based practices are relatively familiar to and commonly accessed by the American public. In the National Health Interview Survey (2007), 8.6% of adults and 2.8% of children indicated that they used some form of osteopathic manipulation or chiropractic care, while 8.3% of adults and 1% of children used some form of MT for health or healing (National Health Interview Survey 2010). Massage is defined as “pressing, rubbing and moving muscles and other soft tissues of the body, primarily by using the hands and finge” (http://nccam.nih.gov/health/whatiscam/). In this section, manipulation and massage will be discussed separately, including the proposed mechanisms of action, summary of evidence, and recommendations for use for management of chronic pain and other symptoms in chronic, life-limiting illnesses. NCCAM defines spinal manipulation as “the application of controlled force to a joint, moving it beyond the normal range of motion in an effort to aid in restoring health. Manipulation may be performed as a part of other therapies or whole medical systems, including chiropractic medicine, massage and naturopathy” (http://nccam.nih.gov/health/whatiscam/). Practitioners such as chiropractors, osteopathic physicians, and physical therapists perform manipulative procedures on the body. Insufficient data regarding craniosacral therapies were identified to warrant a separate discussion.
Massage and Lymphatic Drainage
Massage therapy (MT) is one of the oldest of the identified complementary-alternative therapies with references to its use appearing in Chinese texts at least 4,000 years ago. There are more than 80 different methods classified as massage including Swedish, sports, deep tissue, neuromuscular, trigger point, shiatsu, and manual lymph drainage. Massage can be full body or provided locally to specific areas of the body including the neck, shoulders, hands, and feet. In the mid-1800s, Swedish massage was imported to the USA, named as such by two physicians who learned the techniques in Sweden. This common form of massage includes smooth, gliding strokes over the body (effleurage), firm kneading of soft tissues (petrissage), and tapping or vibrating areas of the body (tapotement).
There are multiple hypotheses related to the mechanisms of action of MT for relief of chronic pain and other symptoms. The palliative effects of massage are proposed to be related to: an increase in blood flow and lymph drainage reducing the accumulation of metabolites in the tissues; muscle relaxation through the manual release of muscle tension; the generalized relaxation response; release of increased serotonin that decreases noxious pain impulses to the brain; increased release of somatostatin promoting restorative sleep and decreased release of substance P secreted in deep sleep deprivation (Field 1998); endorphin release from the pleasant sensation of touch; overriding pain signals (gate control theory); and energy transfer and energy field repatterning. However, the actual mechanisms of action have not been established.
Massage with common maneuvers such as effleurage and petrissage and delivered by trained professionals is a safe therapy. There are a few reports of adverse reactions to MT; however, for the most part these are related to more exotic types of manual therapies delivered by the lay public (Ernst 2003a; Grant 2003). Massage is contraindicated in persons with clotting disorders, taking anticoagulant medications, with potential or known thrombus, and at risk for fracture and over any lesions.
Research on the effects of massage related to pain and palliative care has proliferated over the past 25 years. (Field 1998; Ernst 1999, 2002, 2003a, 2004, 2009a; Cherkin et al. 2003; Fellowes et al. 2004; Furlan et al. 2002, 2008, 2009; Hughes et al. 2008; Jane et al. 2008; Lafferty et al. 2006; National Guidelines Clearinghouse 2010; Natural Standard 2010a; Pan et al. 2000; Russell et al. 2008; Tan et al. 2007; Wilkinson et al. 2008a). Two meta-analyses of massage research have been published (Fellowes et al. 2004; Moyer et al. 2004). Fellowes et al. reported on eight RCTs of MT in patients with cancer published before 2002. A 19–32% reduction in anxiety was reported in four studies. Pain was an outcome in three studies and a decrease in pain occurred in one. Two studies showed a reduction in nausea and another revealed an effect on sleep (Fellowes et al. 2004). Moyer et al. (2004) included 37 trials with statistically significant overall effect sizes in categories of state anxiety, immediate assessment of pain, and delayed assessment of pain among others; the findings support the conclusion that MT is effective.
A number of reviews have found that massage has demonstrated benefits for improving symptoms and functions those for those with subacute and chronic nonspecific low back pain (Cherkin et al. 2003; Ernst 1999, 2004; Furlan et al. 2002, 2008, 2009). For those with chronic low back pain the effects were long lasting (at least a year after the end of sessions). The greatest benefit seemed to come from massage delivered by professional massage therapists with many years of experience and when massage was combined with stretching exercises and education. These reviews conclude that massage is effective for persistent low back pain and has the potential to reduce costs of care after an initial course of therapy but more and stronger investigations are needed (Cherkin et al. 2003; Ernst 2009a).
There appears to be consistent common findings across MT studies, including decreases in anxiety, depression, and stress hormones and an increase in parasympathetic activity (Field 1998). Since pain is exacerbated by stress and tension, this is an important consideration. MT has been found to be “useful for pain relief in numerous chronic pain conditions” (Tan et al. 2007). There is less support for its efficacy for neck pain and fibromyalgia.
Several reviews focus specifically on massage for cancer, cancer pain and palliative care at end of life. These reviews conclude that there is support for the use of massage for relief from cancer pain in those at end of life (Lafferty et al. 2006; Pan et al. 2000). The Natural Standard Database rated the evidence that massage improved quality of life at a “B” or good rating; all other outcomes including for pain and anxiety were rated “C” or inconclusive (Natural Standard 2010a). In his review of 14 trials of massage for cancer palliation and supportive care, Ernst (2009a) reported “encouraging evidence.” He stated that the effect sizes for massage were small to moderate, but added that these effects can be beneficial for this population. Finally, he noted the methodological flaws and pitfalls of the studies and pointed to the Kutner et al. (2008) study as a model for future research. While it is difficult to compare across studies because of variation related to type of massage, dosage, control conditions, and outcomes, there is a trend that massage has more positive effects than controls for decreasing pain intensity, nausea, fatigue, distressing symptoms, anxiety, and enhancing relaxation. The most inconsistent outcomes are related to sleep, analgesic consumption, quality of life, and depression/mood disturbance (Jane et al. 2008; Wilkinson et al. 2008a). It appears that MT has an immediate or short-term (5–20 min) effect on symptoms, but there is no evidence that these effects are sustained over hours or days even with multiple treatments (Russell et al. 2008). MT can be safely integrated into the care of children with cancer, and that it can be beneficial for managing side effects and the emotional turbulence of the experience (Hughes et al. 2008).
Table 35.4 summarizes the research in MT for chronic pain and palliative care. The table includes randomized controlled trials (RCTs) and some quasi-experimental designs without controls or randomization. Only studies of chronic pain, those conditions that are persistent, recurring, and not self-limiting were included. For this reason, studies of episodic pain syndromes such as acute back pain, postoperative pain, and tension headaches were not included.
Table 35.4
Massage evidence table
References | Measurement | Participants population & N | Design and control group | Findings/notes |
---|---|---|---|---|
Ahles et al. (1999) | HR, RR, BP, pain, anxiety, emotional distress, nausea, fatigue | Bone marrow transplant patients during 3-week hospital stay, N = 33 | RCT comparing MT (upper body; 20 min; nine sessions) to quiet time control | Immediate effects for BP, anxiety, emotional distress nausea, HR, RR, pain, and fatigue |
Longer term effects for anxiety, depression, mood disturbance | ||||
Billhult et al. (2007) | VAS for anxiety and nausea; Hospital Anxiety and Depression Scale | Women with breast cancer, N = 39 | RCT comparing MT (20 min; five sessions) to 20 attention control (visits) | Significantly greater decrease in nausea for MT compared to control. No differences in anxiety and depression |
Brattberg (1999) | VAS and use of analgesics measured during treatment and at 6 month follow-up | Adults with fibromyalgia, N-48 | RCT comparing massage (connective tissue massage, 15 treatments for 10 weeks) to routine care | Reported a reduction in pain, depression, and use of analgesics, and improved quality of life. Incomplete statistical analysis |
Campeau et al. (2007) | Anxiety VAS (immediate effects) and STAI (intermediate effects) | Adult cancer patients undergoing radiation therapy, N = 100 | RCT comparing MT (ten sessions) to usual care control | Significant decrease on immediate anxiety scores by 45%; no significant decrease on intermediate anxiety |
Cassileth & Vickers (2004) | Symptom rating scales 0–10 for pain, fatigue, stress/anxiety, nausea, depression, and “other” | Adult patients with cancer in treatment at a Cancer Center, N = 1290 | Pre–post intervention measurement of symptoms; no control group | Symptom scores reduced by 50% even for patients reporting high baseline scores |
Cherkin et al. (2001) | NRS 0–10 for pain and other symptoms and 0–23 rating scale for dysfunction Follow up at 4, 10, and 52 weeks. Interviewers blinded to treatment group. Follow up at 4, 10, and 52 weeks | Adults with persistent low back pain, N = 262 (acupuncture N = 94; MT N = 78; self-care N = 90) | RCT comparing massage; <10 treatments of unspecified length over 10 weeks to acupuncture and self-care | MT significantly superior to self-care at 10 weeks for pain and disability. MT superior to acupuncture on disability scale. After 1 year MT was not better than self-care but better than acupuncture for pain and dysfunction. MT group used least medications and had lowest medical costs |
Corner et al. (1995) | Anxiety, depression, quality of life symptom distress assessed twice weekly, before massage and 24 h later | Adults with cancer, N = 52 | RCT comparing MT with essential oils to massage with carrier oil (eight massages) | Immediate effects included decreased anxiety for MT with essential oils as compared to without essential oils. Significant improvements in pain, mobility, fatigue, and function from first to last assessment for those receiving aromatherapy massage. No significant difference between groups |
Ferrell-Torry & Glick (1993) | VAS for pain intensity, STAI for anxiety, VAS for relaxation. Measurements immediately after treatment | Adult veterans, N = 9 with solid tumor or hematologic cancer with moderate pain or generalized discomfort | Massage consisted of 30 min of effleurage and petrissage to feet, back, neck, and shoulders using warm cocoa butter. Myofacial trigger point stimulation of 6 TP in upper, middle, and lower trapezius muscle region. Concluded with 3 min light effleurage and cupping over sacral area | Significant decreases immediately after MT for pain intensity and anxiety. Significant increase in relaxation immediately after massage. Inconsistent findings with physiological measures |
Pre–post intervention measurement of pain, HR, RR BP, and MAP. 7/9 had two trials on consecutive evenings | ||||
Field et al. (1997) | Pain reported by children, parents, and physicians | Children with rheumatoid arthritis | Quasi-experimental design comparing massage to progressive muscle relaxation | Those in MT group had decreased anxiety and cortisol after first and last sessions and decreased pain and pain limitations on activities over 1 month |
Field (2002) | Physician reports of pain and number of tender points | Adults with fibromyalgia, N = 24 | RCT comparing MT to guided relaxation therapy | Physician’s ratings of pain, disease, and number of tender points decreased significantly in MT group |
Godfrey et al. (1984) | Pain VAS, mobility, functional ability | Adults with low back pain, N = 81 | RCT comparing MT (light effleurage for 10 min, five treatments in 2 weeks) to chiropractic and electrostimulation | No significant differences between groups; improvements noted in all |
Grealish et al. (2000) | VAS for pain, nausea, and relaxation | Hospitalized cancer patients, N = 87 | Foot massage, 5 min/foot | Significant immediate effect on pain, nausea, and relaxation post foot massage |
Pre–post single group design | ||||
Hasson et al. (2004) | Muscle pain rated before, during, and after treatment | Adults with chronic musculoskeletal pain, N = 129 | RCT comparing MT to mental relaxation group | Significant improvement in pain during treatment; this was not sustained at the 3 month follow-up |
Hernandez-Reif et al. (2001) | Self-reports of pain, anxiety, and range of motion measurement | Adults with chronic low back pain, N = 24 | Quasi-experiment comparing MT (30 min, 2 times/week for 5 weeks) to progressive muscle relaxation | MT group had significant improvement in range of motion and reported less pain and anxiety; MT group had lower depression and higher serotonin and dopamine levels |
Hoehler et al. (1981) | VAS, follow up after 3 weeks | Adults with acute or chronic low back pain, N=95 | RCT comparing MT (soft tissue massage of the lumbosacral area, about 4 treatments in 20 days) to rotational manipulation (5 treatments in 30 days) | No significant differences between groups at the end of the treatment period; improvements noted in both groups |
Hsieh et al. (1992) | VAS for pain; measures of confidence, strength, range of motion; follow up after 4 weeks | Chronic low back pain, N = 63 | RCT comparing MT (gentle stroking back massage 3 times/week for 3 weeks) to chiropractic, corset, and TC muscle stimulation | Significantly greater improvement in chiropractic group as compared to MT |
Irnich et al. (2001) | Pain related to motion. Measured immediately after 1st and last treatments and 3 weeks after 1st and last treatments | Adults with chronic neck pain, N = 177 | RCT comparing massage (5 treatments of 30 min each over 3 weeks; conventional Western massage including effleurage, petrissage, friction, tapotement, and vibration) to acupuncture and sham laser | Reduction in pain significantly greater in the acupuncture group as compared with the massage group but not compared with the sham laser. Pain improved by greater than 50% compared with baseline in 57% of patients who received acupuncture compared to 32% who received sham laser and 25% who received massage |
Konrad et al. (1992) | VAS, analgesic use, mobility, and functional ability | Adults with subacute or chronic low back pain, N = 158 | RCT comparing MT (underwater massage; 3 for 15 min for 4 weeks) with balneotherapy, traction and no-treatment control | No significant differences between treatment group; MT was significantly superior to no treatment at end of treatment period |
Kutner et al. (2008) | Brief pain inventory, Memorial Symptom Distress Scale, McGill Quality of Life Questionnaire, use of pain medications; pain and mood measured before and after massage with Memorial Symptom Assessment Card | Adults with advanced cancer and moderate pain enrolled in hospice or palliative care, N = 380 | Multisite RCT comparing MT (massage, 30 min, 3 massages/week for 2 weeks; effleurage, petrissage, and myofascial trigger point therapy provided by massage therapist) to simple touch | Significantly greater decrease in pain and increase in mood for MT group immediately after treatment compared to simple touch. No significantly greater decrease in pain, symptom distress, or mood for MT vs. simple touch. Improvements noted over time in pain and symptom distress for both groups. No increase in parenteral morphine equivalent use over time |
Meek Spring (1993) | Measures of relaxation: HR, BP, skin temp. immediately and 5 min after MT. Repeated 24 h later | Persons with terminal illness enrolled in hospice, N = 30 | Slow stroke back massage; 60 strokes/min with Biotone massage oil on 2-in.-wide areas on both sides of spinous processes from crown of head to sacral area for 3 min | Significant changes in HR, BP, and skin temperature on both days with increased relaxation indicators on the second day |
Pre–post intervention measures on two consecutive days of treatment | ||||
Myers et al. (1999) | VAS; McGill Pain Questionnaire before and after session | Adults with sickle cell pain, N = 16 | RCT comparing MT (six sessions) to relaxation training | No significant differences between groups. Both groups showed decrease in pain dimensions |
Perlman et al. (2006) | VAS and Western Ontario and McMaster Universities Osteoarthritis Index | Adults with osteoarthritis of the knee | RCT comparing MT (1 h full body Swedish, twice/week for 4 weeks and once/week for 4 weeks) to usual care delayed intervention control | MT group had significant improvements in WOMAC scores and in VAS of pain |
Phipps et al. (2005) | VAS for distress and mood | Children undergoing bone marrow transplant, N = 50 | RCT comparing parent massage (parent-provided massage and control-provided massage, three massage sessions for 4 weeks) and standard care | No significant differences for distress and mood between groups |
Plews-Ogan et al. (2005) | Numeric Rating Scale (0–10); pain unpleasantness and pain sensation | Adults with chronic musculoskeletal pain, N = 30 | RCT comparing massage (1 h sessions, once a week for 8 weeks. Techniques used at discretion of therapist included Swedish, deep-tissue, neuromuscular, and pressure point) and mindfulness-based stress reduction to standard care | At week 8 MT group had mean change score in pain unpleasantness of 2.9 compared to standard care group mean change score of 0.13. These were not statistically significant |
Post-White et al. (2003) | Pain index, analgesic usage, mood and fatigue | Adults with cancer, N = 164 (N = 77 HT or MT, N = 75 control); 33.6% drop out | Randomized two period cross-over comparing massage Rx and HT to no-treatment control; self-control (attention control – sitting). HT; four sessions of control and four sessions of massage Rx; 45 min/session | No differences in pain reduction between MT and control group. Mean difference: 0.0. Pain reduction, fatigue reduction, and improved mood for both HT and MT groups |
Puustjarvi et al. (1990) | VAS and incidence of pain over 2-week period; range of motion, ENMG; Beck Depression Index | Adult females with chronic tension headaches | Single group pre–post design | Range of motion increased after MT, VAS, and days with neck pain decreased significantly. Significant change in ENMG and depression improved |
Upper body MT with deep tissue techniques. Trigger point therapy | ||||
Sims (1986) | Symptom distress assessed four times (before and after MT and rest periods) | Adults with breast cancer, N = 6 | Randomized crossover massage (gentle, 3 consecutive days) and rest period | Control group showed no differences after crossover. MT group showed improvement then significant increase in symptom distress after crossover |
Smith et al. (2002a) | VAS for pain, VSH for sleep, STAI for anxiety and McCorkle & Young’s Symptom Distress Scale measured at baseline and after 1 week | Adults with cancer hospitalized for chemotherapy or radiation therapy, N = 41 (20 MT, 21 control) | Quasi-experimental design; pretest–postest control group design without random assignment comparing MT (using Swedish techniques delivered by nurse massage therapist, 30 min, three massages over 1 week period) to therapeutic nurse presence group | Statistically significant interactions were found for pain, symptom distress, and sleep. Sleep improved slightly for those in the MT group and deteriorated significantly for those in the control group. There were statistically significant differences in improved pain and symptom distress for those in the MT group |
Soden et al. (2004) | Pain and anxiety measured by VAS of pain intensity, Verran and Snyder-Halpern sleep scale and Hospital Anxiety and Depression scale, and Rotterdam Symptom Checklist | Cancer patients, N = 42 | RCT comparing weekly massage with aromatherapy, massage without aromatherapy, and no-treatment control | No significant long-term benefits of aromatherapy massage or massage in improving pain control, anxiety, or quality of life |
Sunshine et al. (1996) | Dolimeter and self-reports of pain and symptoms | Adults with fibromyalgia syndrome | Quasi-experiment comparing MT (30 min treatment, two times/week for 5 weeks) to TENS and sham TENS | MT group reported lower anxiety and depression and lower immediate cortisol levels. MT had greater improvement on dolimeter and reported less pain, stiffness, fatigue, and fewer nights of difficult sleeping |
van den Dolder & Roberts (2003) | SF McGill Pain Questionnaire and Patient Specific Functional Disability Measure | Adults with chronic shoulder pain, N = 29 (N = 15 MT; N = 14 control) | RCT comparing MT (soft tissue massage around the shoulder, six treatments for 2 weeks) to waitlist control | Significant improvements in range of motion, pain, and functional ability for MT group |
Walach et al. (2003) | Pain rating using a 9-point Likert-type scale. Measures posttreatment and 3 month follow up | Adults with chronic pain conditions of back, shoulders, head and limbs, N = 29 (N = 19 in MT and N = 10 in SMC) | RCT of MT vs. standard medical care | Pain improved significantly in both groups, but only MT group sustained improvement at 3 months |
Weinrich & Weinrich (1990) | VAS immediately after MT | Adults receiving radiation, chemotherapy, or both, N = 28 | Swedish massage, 10 min given by seven senior nursing students. Slow, continuous strokes with lotion | Results varied for males and females. No analysis of significant differences between groups. Males showed decrease after massage |
RCT with verbal visit control group | ||||
Wilcock et al. (2004) | Mood, quality of life, symptom intensity, symptom bother | Adults with cancer in palliative day care, N = 29 | RCT comparing MT (aromatherapy massage; 30 min/weekly for 4 weeks) with standard care control | No significant differences between MT and control groups |
Wilkie et al. (2000) | Pain intensity, prescribed IM morphine equivalent doses, hospital admissions, and quality of life. Measures before first and after fourth massage | Adults with cancer pain, N = 29 (MT N = 14 and control N = 15) | RCT comparing massage (four sessions (2 per week for 2 weeks) administered by licensed therapists) to usual hospice care | Pain intensity, pulse rate, and respiratory rate decreased significantly immediately after massages. Mixed results related to pain medication use |
Wilkinson (1995) | Physical symptoms, quality of life | Adults with cancer, N = 51 (N = 26 AM; N = 25 control) | Randomized case series comparing aromatherapy massage with massage without essential oils | Significant decrease in physical symptoms and fewer and less severe symptoms; significant increase in quality of life after aromatherapy massage; significant decrease in physical symptoms for aromatherapy massage compared to massage |
Wilkinson et al. (2007) | Anxiety, depression measured at 6 and 10 weeks | Adults with cancer, N = 144 | RCT comparing aromatherapy massage with usual care control | Significant decrease in anxiety and depression at 6 weeks; no significant decrease in anxiety and depression at 10 weeks; significant decrease in self-reported anxiety at 6 and 10 weeks |
Williams et al. (2005b) | Missoula-Vitas Quality of Life Index measured at baseline and 8 weeks | Adults with late stage AIDS | RCT comparing MT (30 min/day/5 days/week for 1 month), Metta meditation, both MT and meditation and routine care | Combined group demonstrated improvement in QOL from baseline to 8 weeks |
Many of the studies listed have methodological weaknesses, and a quality analysis was not conducted for this review. For example, small sample sizes are the norm, possibly because a considerable portion of the studies listed were unfunded or underfunded. Research related to MT can be expensive because of the cost of administering massage. These small sample sizes compromise the ability to detect actual differences that may exist. The intensity and duration of the intervention varies widely, so it is challenging to compare results. Some studies examine the effects of a few treatments while others use ten or more treatments over weeks or months. Many studies have no follow up. The control conditions vary from usual care, exercise, relaxation, or other therapies. Many reports lack adequate descriptions of outcome variables. All this compromises the ability to draw evidentiary conclusions.
Types and dosages of the MT varied across the studies. Pain was most frequently measured using a visual analogue or numeric rating scale, with immediate and follow-up measures variably present. Based on these data, MT provides some degree of efficacy, if only short term, for a variety of chronic pain syndromes. This conclusion is consistent with other reviews of MT for back pain.