A 68-year-old man presents with a syndrome of alcohol withdrawal. ECG Shows?
Ans. (a) Atrial flutter.* This ECG reveals a regular narrow complex tachycardia at a rate of 150 beats/min. Coarse sawtooth waves are seen best in the inferior leads diagnostic of atrial flutter with 2 to 1 AV conduction.* Whenever a supraventricular tachycardia at a rate of close to 150 beats/ min is present, the diagnosis of atrial flutter should be considered. The QRS axis is normal, and there is no clear evidence of ischemia.* Typical atrial flutter is caused by a macro-reentrant circuit in the right atrium, involving the tricuspid annulus. Structural heart disease, intrinsic lung disease, and states of increased sympathetic tone can all predispose to this arrhythmia.
Atrial flutter
Atrial fibrillation
PSVT
VT
C.V.S.