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It's the ECG's that george rejects that makes George's ECG's the best.
Pacemaker-Sinus Escape-Capture Bigeminy
Report: Sinus rhythm Second degree AV block, unspecified Intraventricular conduction delay (QRS 0.12") Pacemaker escape beats Escape-capture bigeminy Comment: The conducted sinus beats have normal PR intervals, but the P waves following them have the
Sinus-Junctional Escape-Capture Bigeminy
Report:Sinus rhythm 84/min Borderline left atrial abnormality (LAA) Second degree AV block, unspecified Junctional escape beats Escape-capture bigeminy LVH with ST/T changes Comment:Only every third sinus P wave is conducted, with a PR interval just
Sinus Bigeminy
Report: Sinus rhythm 98/min (top) Sino-atrial 3:2 Möbitz 1 exit block?[!xe "Sino-atrial exit block:bigeminy" \b!] Bigeminy[!xe "Bigeminy:sinus" \b!] Comment: The differential diagnosis includes SVEBs in bigeminy (where P’ waves look different to sinus
Skipped P Waves in Wenckebach Conduction
Report: Sinus tachycardia 120-128/min First degree AV block Second degree AV block, Möbitz 1 Periods of 3:2 conduction, with bigeminy Right bundle branch block Pacemaker rhythm 72/min Fusion and pseudofusion beats Comment: The key to correct interp
AV Block in Inferior Infarction
Report: Top: Sinus rhythm VEB Third degree AV block Junctional escape rhythm 42/min Second strip: Sinus tachycardia 104/min Second degree AV block, 2:1 conduction First degree AV block in conducted beats (PR 0.44”) Third strip: Sinus tachycardi
Not a Sinus Bradycardia
Report: Sinus rhythm Sinus arrest Junctional escape beats Retrograde conduction Non-phasic aberrant conduction Escape-capture bigeminy Comment: The phenomenon of escape-capture bigeminy depends on the coincidental arithmetic relationship between the
Rate-Dependent LBBB
Report: Sinus rhythm 90/min SVEBs, blocked, in bigeminy Left bundle branch block, rate-dependent Comment: The blocked atrial extrasystoles are discretely etched on the onset of the T wave. In the upper strip, the last LBBB complex has a distinctive nip
Atropine Bradycardia
Report: Top: Sinus rhythm 83 - 85/min Second degree AV block Escape-capture bigeminy Ventricular rate 55/min Bottom: Sinus tachycardia 100/min 2:1 AV block Ventricular rate 50/min Comment: In the top strip, a basic 2:1 AV block is modified by th
Sino-Atrial Exit Block
Report:Sinus rhythm 52 – 54/min Sino-atrial exit block Bigeminy Nonspecific T wave changes Comment:There are two long cycles. One is slightly longer, the other slightly shorter than twice the preceding P-P cycle. Allowing for some sinus arrhythmia, th
Sino-Atrial Exit Block
Report:Sinus rhythm 74/min 3:2 sino-atrial exit block Bigeminy Negative U waves in lead 1 Comment:The same comments can be made here as for the preceding Case 93. It, too, could have Möbitz 2 mechanism. Below (Fig 94a) is another trace, with long cyc