OBJECTIVES The purpose of this study was to determine whether the response to ventricular pacing during tachycardia is useful for differentiating atypical atrioventricular node re-entrant tachycardia (AVNRT) from orthodromic reciprocating tachycardia (ORT) using a septal accessory pathway. BACKGROUND Although it is usually possible to differentiate atypical AVNRT from ORT using a septal acces...

AIMS The site of successful ablation of the slow atrioventricular (AV) nodal pathway may be located in the posteroseptal or midseptal area. We have previously shown that the site of successful radiofrequency (RF) ablation of the slow pathway, rather than residual slow pathway conduction correlates with AV nodal re-entrant tachycardia (AVNRT) recurrences, with more recurrences noted in inferopos...

Our purpose was to characterize the excitable gap during atrioventricular nodal reentrant tachycardia (AVNRT) to elucidate the electrophysiologic substrate of this clinically familiar microreentrant arrhythmia. Accordingly, in 11 patients with classic slow-fast AVNRT (mean cycle length, 342 +/- 41 msec), a single ventricular extrastimulus (V2) was periodically delivered after a spontaneous tach...

BACKGROUND Atrioventricular nodal reentrant tachycardia (AVNRT) is the commonest regular supraventricular tachyarrhythmia. Ablation in the area of slow pathway (SP) has been successfully implemented in everyday clinical electrophysiological practice for more than 20 years. Although the procedure is generally regarded as effective and safe, data on long-term effects and predictors of success or ...

In more than 95% of patients with atrioventricular nodal reentrant tachycardia (AVNRT), curative treatment can be achieved with selective ablation of the slow pathway in the right-sided septum. We report a patient with typical AVNRT who had failed attempts to perform conventional right septal ablation of the slow as well as of the fast pathway and finally underwent successful ablation of the fa...

Abstract Background Multiple episodes of syncope in rapid succession are extremely rare, and the elderly has multiple potential mechanisms. Even though electrophysiology study little role patients with who have structurally normal hearts, history preceded by palpitations was a red-flag symptom that made us go ahead (EP) revealed ultimate diagnosis typical atrioventricular nodal reentry tachycar...

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...

With a wide array of manifestations ranging from mild dyspnea to fatal cardiogenic shock, acute pulmonary embolism (PE) remains an enigmatic clinical entity. Vivid electrocardiography (ECG) patterns portrayed in different clinical instances of acute PE have always remained an interesting, yet debatable subject since the classic S1Q3T3 pattern on ECG secondary to PE was first described in 1935. ...

The work was initiated to study quality of life (QoL) parameters in patients with atrioventricular nodal reentrant tachycardia (AVNRT) before and after radiofrequency catheter ablation procedure (RFA). As analysis of data obtained by means of the SF-36 health survey shows, AVNRT causes reduction in quality of life involving parameters of both physical (38.6%) and emotional (24.8%) health compon...