Cardiac Tamponade
CARDIAC TAMPONADE LEE HALLAGAN & ALOK GUPTA CASE SCENARIO A 22-year-old man is brought to the emergency department (ED) after an altercation in which he was stabbed in the left…
EMERGENCY MEDICINE
Ultrasound: Basics
ULTRASOUND: BASICS ABTAHI SEYED MAHDI, SANDEEP HEDGIRE, RACHEL BORCZUK, AZADEH ELMI, & MUKESH HARISINGHANI ESSENTIAL CONCEPTS Ultrasound imaging uses the pulse-echo principle in which a short burst of sound waves…
Necrotizing Soft Tissue Infection
NECROTIZING SOFT TISSUE INFECTION DAVID FINK & MARC DEMOYA CASE SCENARIO A 53-year-old obese man presents to the emergency department complaining of one day of progressive pain and swelling of…
Wide QRS Complex Tachycardia in the Emergency Setting
Fig. 6.1 Diagrams (a, b) show two wide QRS complex tachycardias. In both diagrams, small positive deflections, independent of QRS complexes, are present. In diagram (a) these deflections are rhythmic…
Atrial Flutter and Fibrillation in the Emergency Setting
Fig. 5.1 Atrial fibrillation with moderately fast ventricular response (about 100 bpm). RR intervals are irregular and coarse F waves are visible European (ESC 2010) [4] and US (AHA/ACC/HRS 2014)…
Supraventricular Arrhythmias in Emergency
Fig. 4.1 ECG in normal sinus rhythm; with usual setting (paper speed 25 mm/s) 1 mm equals with 40 ms interval Each QRS complex is preceded by a P wave…
Pacemaker Malfunction: Myth or Reality?
Fig. 11.1 Top panel (a). DDD pacemaker. Atrial rhythm is paced at 60 bpm. Spontaneous QRS with right bundle branch morphology occurs after 180 ms that inhibits ventricular pacing. This…
Emergency Surgery and Cardiac Devices
I II III IV V Chamber (s) paced Chamber (s) sensed Response to sensing Rate modulation Multisite pacing O → none A → atrium V → ventricle D → dual (A + V) O → none A → atrium V → ventricle D → dual (A + V) O → none T → triggered…
Management of Bradyarrhythmias in Emergency
Fig. 3.1 Sinus arrest 3.4 Atrioventricular Block Atrioventricular block occurs when the conduction of the atrial impulse to the ventricles slows down or is blocked (paroxysmal or permanently), even though…
Cardiac Arrhythmias in Drug Abuse and Intoxication
Fig. 10.1 Amateur football player, 17 years old, suspected cocaine intoxication and “chaotic atrial arrhythmia,” i.e., sinus rhythm and polymorphic supraventricular ectopic beats Cocaine can also induce ECG modifications such…
