Category: ECG / Electrophysiology

Treadmill Exercise ECG, also known as treadmill test (TMT) and stress ECG is usually done with a computerised treadmill unit which controls the motor speed of the treadmill

Very long pause noted on ICU monitor Very long pause noted on ICU monitor (central monitor) of about 8 seconds and two more pauses of around 2 seconds

Detection of myocardial infarction in paced rhythm Detection of myocardial infarction in paced rhythm is often difficult due to the baseline abnormality in depolarization and secondary abnormality in

AV sequential pacing (tracking) At a glance this will seem to be a simple LBBB (left bundle branch block. But the QRS complexes are negative in V5, V6

Paced rhythm with retrograde P waves Paced rhythm with retrograde P waves: ECG shows a wide QRS rhythm with LBBB pattern in I, aVL and V1. Axis is

Giant wide T inversion may be seen in all except: a) After a cardiac arrest b) Subarachnoid hemorrhage c) Hyperkalemia d) Takotsubo cardiomyopathy Correct answer: c) Hyperkalemia Giant T wave

Biventricular pacing superior to RV pacing for AV block with systolic dysfunction It is known that right ventricular apical pacing can result in deterioration of left ventricular systolic

The most dreaded complication of atrial fibrillation ablation procedures: a) Esophageal pericardial fistula b) Atrio-esophageal fistula c) Cerebral embolism d) Pericardial tamponade Correct answer: b) Atrio-esophageal fistula Atrio-esophageal fistula

Esophageal injury with AF ablation: Rare but potentially devastating Esophageal injury has remained a nightmare of atrial fibrillation ablation due to potentially catastrophic sequelae. Esophageal perforation after AF

Reduction of defibrillator shock related pain by a tetanizing prepulse Reduction of defibrillator shock related pain: Defibrillator shocks are painful, mostly due to the associated skeletal muscle stimulation.