American Society of Anesthesiologists’ Guidelines for Office-Based Anesthesia Practices
Richard D. Urman
In this section, some key regulations and guidelines related to the office-based anesthesia (OBA) practice are reviewed. Over the last 10 years, a large increase in office-based procedures has forced the American Society of Anesthesiologists (ASA) and other professional societies to come up with specific guidelines to promote patient safety and professional quality. Most of the information can be found in the ASA literature, and much of the detailed, current information is available on the ASA website (www.asahq.org). Unfortunately, there is still limited regulation of the office-based facilities in most states, and most federal and state laws do not go far enough (1).
The ASA encourages the anesthesiologist to play a leadership role as a perioperative physician in all hospitals, ambulatory surgical centers, and office-based settings. The guidelines and recommendations discussed in the subsequent text apply to anesthesiology personnel administering ambulatory anesthesia in all settings. Most are minimal basic guidelines, which may be exceeded at any time based on the judgment of the involved anesthesia personnel. It is also noted that these guidelines encourage high-quality patient care, but by observing them one cannot guarantee any specific patient outcome. One of the recent positive developments came in July 2002, when all American Society for Aesthetic Plastic Surgery (ASAPS) members agreed to perform surgeries that require anesthesia (other than local anesthesia and/or minimal oral or intramuscular tranquilization) only in an accredited, state-licensed, or Medicare-certified facility. The ASA believes that when proper guidelines are followed, office-based surgery is a safe, convenient, and cost-effective option for properly selected patients.
One of the most thorough documents recently published by the ASA is an information manual assembled by the ASA Committee on Ambulatory Surgical Care and the ASA Task Force on Office-Based Anesthesia (2). This work, titled Office-Based Anesthesia: Considerations for Anesthesiologists in Setting Up and Maintaining a Safe Office Anesthesia Environment, is available on the ASA website. Its authors wanted to “expand on the recommendations of the ASA guidelines for office-based anesthesia,” and provide “advice and resources for anesthesiologists who currently practice, or plan to practice, in the office setting.” This document discusses various topics critical to maintaining a safe office-based practice, such as facility accreditation; provider credentials and qualifications; principles of facility safety, medication management, preoperative, intraoperative, and postoperative care; and monitoring and equipment. It also discusses the management of emergencies.
While it is impossible to cover all aspects of OBA-related rules and guidelines in this chapter, it is important to mention a few major developments in this area. Box 5.1 shows the list of recent ASA documents that are relevant to the anesthesia practice in an office setting (see Appendix 1).
Box 5.1
Guidelines for Office-Based Anesthesia
Guidelines for Ambulatory Anesthesia and Surgery
Statement on Qualifications of Anesthesia Providers in the Office-Based Setting
Guidelines for Nonoperating Room Anesthetizing Locations
Position on Monitored Anesthesia Care
Office-Based Anesthesia: Considerations for Anesthesiologists in Setting Up and Maintaining a Safe Office Anesthesia Environment (ASA Committee on Ambulatory Surgical Care and ASA Task Force on Office-Based Anesthesia)
Statement on the Anesthesia Care Team
Practice Guidelines for Sedation and Analgesia by Non-Anesthesiologists
Standards for Basic Anesthetic Monitoring
Continuum of Depth of Sedation Definitions of General Anesthesia and Levels of Sedation/Analgesia
Standards for Post-Anesthesia Care
Guidelines for Determining Anesthesia Machine Obsolescence
The ASA Guidelines for Office-Based Anesthesia were first approved by the ASA House of Delegates in 1999, and reaffirmed in 2004. It was primarily intended for anesthesiologists practicing ambulatory anesthesia in office-based environments (1). The ASA recognizes the unique needs of an OBA setting and the increased requests for ASA members to provide anesthesia for health care practitioners (physicians, dentists, podiatrists) in their office-based operating rooms. The ASA states that because OBA is a subset of ambulatory anesthesia, the ASA guidelines for ambulatory anesthesia should be followed in the office-based setting as well as the ASA standards and guidelines that are applicable.
The ASA also recognizes the fact that compared with acute care hospitals and licensed ambulatory surgical facilities, office suites have limited, if any, regulation or control by federal, state, or local laws. Therefore, the onus is on the anesthesiologist to satisfactorily investigate areas taken for granted in the hospital or ambulatory surgical facilities, such as governance, organizations, construction, and equipment, as well as policies and procedures, including fire, safety, drugs, emergencies, staffing, training, and unanticipated patient transfers. The anesthesiologist is encouraged to address those issues in an office setting before administering anesthesia. It involves the personnel, facility, administration, and developing a plan for the pre-, intra-, and postoperative care of the patient. Because of the rapidly growing numbers of procedures being performed in the office-based setting, further recommendations were approved by the House of Delegates in 2004. These involve the quality of care and patient safety in the office setting.
The Guidelines for Office-Based Anesthesia address six major aspects of office-based practice.
Quality of care
Facility and safety
Patient and procedure selection
Perioperative care
Monitoring and equipment
Emergencies and transfers
It is important to consider each of the topics listed in the preceding text in detail, because each is critical to a safe, effective, and quality anesthetic. This chapter will address each aspect of the guidelines separately, and discuss other relevant literature, regulations, and recommendations.
QUALITY OF CARE
The Guidelines for Office-Based Anesthesia first address the administration and facility aspects of the office-based practice (see Box 5.2). They call for the facility to have established policies and procedures that are to be reviewed on an annual basis. Such a facility would need to have a governing body and/or a medical director who supervises the staff and ensures that appropriate procedures are being performed and that the personnel are properly trained. It calls for properly licensed and educated practitioners, and for the anesthesiologist to partake in continuing education, quality improvement, and risk management activities.
Box 5.2
The Guidelines for Office-Based Anesthesia Based on Facility and Administration
The facility should have a medical director or governing body that establishes policy and is responsible for the activities of the facility and its staff.
The medical director or governing body is responsible for ensuring that facilities and personnel are adequate and appropriate for the type of procedures performed.
Policies and procedures should be written for the orderly conduct of the facility and reviewed on an annual basis.
The medical director or governing body should ensure that all applicable local, state, and federal regulations are observed.
All health care practitioners1 and nurses should hold a valid license or certificate to perform their assigned duties.
All operating room personnel who provide clinical care in the office should be qualified to perform services commensurate with appropriate levels of education, training, and experience.
The anesthesiologist should participate in ongoing continuous quality improvement and risk management activities.
The medical director or governing body should recognize the basic human rights of its patients, and a written document that describes this policy should be available for patients to review.
Proper provider credentials are also emphasized by the ASA in the accompanying Statement on Qualifications of Anesthesia Providers in the Office-Based Setting that was approved by the House of Delegates in the same year (3). It stresses that “specific anesthesia training for supervising operating practitioners and other licensed physicians” is especially important in an office-based environment where clinical resources may be limited and emergency facilities may not be readily available. The guidelines for qualifications of anesthesia providers are straightforward, the focus being patient safety and high quality of care. A person extensively trained in the delivery of anesthesia should be involved. If that person is not a physician, then a physician should directly supervise the patient’s anesthesia care. Because there has been much discussion about who can and who cannot perform anesthesia
in the office-based setting, this statement, shown in Box 5.3, emphasizes proper provider training and appropriate supervision.
in the office-based setting, this statement, shown in Box 5.3, emphasizes proper provider training and appropriate supervision.
Box 5.3
Various ASA policy documents, including the “Guidelines for Ambulatory Anesthesia and Surgery,” contemplate that all anesthetics will be delivered by or under the medical direction of an anesthesiologist. ASA recognizes, however, that Medicare regulations and the laws or regulations of virtually all states contemplate that where anesthesiologist participation is not practicable, non-physician anesthesia providers must at minimum be supervised by the operating practitioner or other licensed physician.
ASA believes that anesthesiologist participation in all office-based surgery is optimally desirable as an important anesthesia patient safety standard, and it will always support such a standard. It does not oppose regulatory requirements that, where necessary, speak merely in terms of “physician” supervision. Those requirements should, however, require that the supervising physician be specifically trained in sedation, anesthesia, and rescue techniques appropriate to the type of sedation or anesthesia being provided as well as being trained in the office-based surgery performed.
ASA believes that specific anesthesia training for supervising physicians, while important in all anesthetizing locations, is especially critical in connection with office-based surgery where normal institutional back up or emergency facilities and capacities are often not available.
Since OBA is considered a subspecialty within ambulatory anesthesia, the Guidelines for Ambulatory Anesthesia and Surgery, first approved by the ASA House of Delegates in 1973 and reaffirmed in 2003, should also be adhered to. It addresses the need for adequate professional (physicians, nurses) as well as administrative, housekeeping, and maintenance staffing. It also calls for “established policies and procedures” to deal with medical emergencies and patient transfers (2).
FACILITY AND SAFETY
The second part of the Guidelines for Office-Based Anesthesia refers to facility management (see Box 5.4). Many office-based facilities have limited regulation other than that pertaining to fire and equipment safety, building and occupancy codes, occupational safety, and waste (such as anesthetic gas) disposal. In addition, there are state and federal laws governing distribution and storage of controlled substances that should be taken into consideration.
Box 5.4
The Guidelines for Office-Based Anesthesia Based on Facility Management
Facilities should comply with all applicable federal, state, and local laws, codes, and regulations pertaining to:
Fire prevention
Building construction and occupancy
Accommodations for the disabled
Occupational safety and health
Disposal of medical waste and hazardous waste
Policies and procedures should comply with laws and regulations pertaining to controlled drug supply, storage, and administration.
The Guidelines for Nonoperating Room Anesthetizing Locations were first approved by the ASA House of Delegates in 1994, and last amended in 2003 (4). They were passed at a time when the anesthesiology profession
recognized the rapid growth of OBA and the need for recommendations to improve patient safety and improve quality. They address issues that are often taken for granted at large acute care hospitals: the need for reliable oxygen and suction sources, a gas scavenging system, adequate electric power and lightning, sufficient office space for equipment and personnel, and the availability of an emergency cart. It is suggested that in each location there should be the following:
recognized the rapid growth of OBA and the need for recommendations to improve patient safety and improve quality. They address issues that are often taken for granted at large acute care hospitals: the need for reliable oxygen and suction sources, a gas scavenging system, adequate electric power and lightning, sufficient office space for equipment and personnel, and the availability of an emergency cart. It is suggested that in each location there should be the following:
A reliable source of oxygen adequate for the length of the procedure
A backup supply
An adequate and reliable source of suction—a suction apparatus that meets operating room standards
Before administering any anesthetic, the anesthesiologist should consider the capabilities, limitations, and accessibility of both the primary and backup oxygen sources. Oxygen piped from a central source, meeting applicable codes, is strongly encouraged. The backup system should include the equivalent of at least a full E cylinder.
In any location in which inhalation anesthetics are administered, there should be an adequate and reliable system for scavenging waste anesthetic gases.