A 25-year-old pregnant woman was admitted with frequent episodes of supraventricular tachycardia associated with Wolf-Parkinson-White syndrome. She was treated acutely with adenosine therapy during induction of labor and post-partum. Generally, pharmacologic treatment should be undertaken only for symptomatic arrhythmias or in hemodynamically compromised patients. Adenosine is the first choice ...

T en years ago, the only available treatment modality for patients with drug-refractory supraventricular tachycardia was surgery. Surgical techniques included direct dissection or cryodesiccation of the His bundle for tachycardia control.1'2 During the past decade, catheter techniques have been introduced that replicate the surgical experience without the expense and morbidity associated with c...

Carbon monoxide intoxication is one of the most common types of poisoning in the world. Cardiac manifestations after exposure to carbon monoxide including myocardial ischemia, heart failure and arrhythmias have been reported. A 17-year-old woman was admitted to the emergency service with the complaints of palpitation, headache and nausea. Electrocardiogram revealed supraventricular tachycardia....

Two brothers with Fabry's disease presenting with palpitations were found to have intermittent supraventricular tachycardias. Their electrocardiograms, when symptom-free, revealed short PR intervals consistent with ventricular pre-excitation. Treatment of one of the brothers with verapamil resulted in improvement of the palpitations and reduction in frequency of the tachycardia. Recurrent supra...

Four patients with myocardial dysfunction related to tachycardia underwent electrophysiological studies, which showed a re-entrant supraventricular tachycardia using an accessory atrioventricular connexion. Serial assessment of left ventricular function by echocardiography before and after control of the tachycardia indicated a variable degree of reversibility. Endomyocardial biopsy in two pati...

The accurate tachycardia mechanism verification is the most important condition for high effectiveness and safety of supraventricular ablation. Ventricular overdrive pacing - a simple useful diagnostic maneuver, frequently used in diagnosis. conditions its performance interpretation standard rare situations are described this review.

Coronary sinus (CS) is a landmark for cardiac intervention. Before catheter ablation of paroxysmal supraventricular tachycardia, coronary sinus is used to obtain recordings from the left atrium and ventricle. Despite asymptomatic, anomalies of coronary sinus may become an obstacle for electrophysiological catheterization. Here, we described a case of successful ablation of paroxysmal supraventr...

A37-year-old man with frequent episodes of paroxysmal atrial fibrillation refractory to antiarrhythmic therapy (and no other documented arrhythmias on multiple Holter examinations) underwent an attempt at radiofrequency ablation of the atrial fibrillation. Catheter positions are shown in the left anterior oblique view in Figure 1 and include 2 catheters in the left and right upper pulmonary vei...