Magnitude of ST segment depression during paroxysmal supraventricular tachycardia

Magnitude of ST segment depression during paroxysmal supraventricular tachycardia.

Significance of ST segment depression during paroxysmal supraventricular tachycardia.

During paroxysmal supraventricular tachycardia, patients frequently experience chest pain and marked ST segment depression suggesting acute myocardial ischemia. The purpose of this study was to assess whether ST depression during supraventricular tachycardia is caused by myocardial ischemia as reflected by net myocardial lactate production. Twenty-five patients (14 men, 11 women) who had a hist...

ST Segment Elevation during Supraventricular Tachycardia (SVT) – An Enigma!

Atrioventricular nodal reentry tachycardia (AVNRT) represents one of the most common arrhythmias in emergency cardiology. It can occur in patients of all age groups and may occur in presence or absence of heart disease including coronary artery disease. During the periods of AVNRT, it is not uncommon to see ST segment depression and T wave changes. These, generally, persist transiently in the p...

Malignant Paroxysmal Supraventricular Tachycardia

A 63 year old male had a sudden episode of cardiac arrest during travel. He was resuscitated and cardioverted successfully with a semi-automatic defibrillator. The first ECG showed atrial fibrillation with inferior Q waves and he spontaneously reverted to sinus rhythm over the next few hours. The patient had been asymptomatic up to the episode of cardiac arrest and referred no prior history of ...

Induction of Paroxysmal Supraventricular Tachycardia

mg, mean ± SD) of disopyramide for three to five doses over 24 hours and were then restudied. All patients had inducible, sustained PSVT during the control study. After disopyramide, PSVT was noninducible in eight patients (50%), including six of nine with atrioventricular nodal reentrance and two of seven with atrioventricular reentrance; inducible but nonsustained in two (12.5%) (both with at...