St. John’s Wort-Induced Supraventricular Tachycardia

Gemcitabine-induced supraventricular tachycardia.

The superior toxicity profile is one of the major reasons for the widespread use of gemcitabine in cancer treatment. Bone marrow suppression is the most common side effect, while non-hematological events are relatively infrequent. Cardiac toxicity is a rare complication and cardiac arrhythmia is even rarer. We report the case of a 67-year-old woman with metastatic breast cancer without a histor...

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...

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...

Magnitude of ST segment depression during paroxysmal supraventricular tachycardia.

Rapidly Recurring Supraventricular Tachycardia

or digitalis and quinidine, prevented tachyeardia in five patients and slowed it in one. Our cases suggest the following: (1) Recurrent supraventricular tachycardia in patients without the WPW syndrome may frequently be caused by a reciprocal mechanism. (2) The diagnosis of reciprocating tachycardia should be suspected when (a) the tachycardia recurs within minutes of its termination, (b) the o...