Atrioventricular node modification in patients with chronic atrial fibrillation - Role of morphology of RR interval variation

Autor: Rokas, S Gaitanidou, S Chatzidou, S Pamboucas, C and Achtipis, D Stamatelopoulos, S
Jazyk: angličtina
Rok vydání: 2001
Popis: Background-This study evaluates the role of RR interval distribution pattern as an outcome predictor of radiofrequency (RF) modification of atrioventricular (AV) node in chronic atrial fibrillation (AF) and attempts to elucidate the likely mechanism of rate control. Methods and Results-Sixty-five patients with chronic AF underwent AV node modification. The RR interval distribution pattern was derived from 24-hour ECC recordings obtained before and after the procedure. The preablation pattern was bimodal (B) in 36 patients (55%) and unimodal (U) in 29 patients (45%). After the modification procedure, the B pattern shifted to U (78%) or became modified B (22%). The mean number of RF pulses delivered and the fluoroscopy time were n=8+/-5 and 24+/-11 minutes. respectively, in patients with B pattern versus n=18+/-7 and 45+/-17 minutes in patients with U pattern (P
Databáze: OpenAIRE