[Incidence of short-term XXXX after endocavitary fulguration].

@entity1 @entity1165 @entity591 @entity955 @entity3153 @entity943
The potential short-term arrhythmogenic role of catheter-mediated electrical ablation was studied in 61 @entity1 of mean age 44 years (range 15-80 years) who underwent this procedure for @entity3153 (36 @entity1 ) or @entity1165 ( @entity1165 , 25 @entity1 ). Continuous ECG monitoring was pursued during the 24 hours that preceded and followed ablation. Only bursts of 3 consecutive beats or more were considered significant. Recordings were performed with either a Hewlet Packard 78720 A @entity943 recorder or a Holter readout system (Oxford Medilog 2, Marquette). In 36 @entity1 with an accessory conduction pathway the 160 J were delivered at the annulus fibrosus cordis. Post-ablation recordings showed: @entity1165 bursts in 16 @entity1 (17%); the bursts disappeared in every case before 3 days; in 3 @entity1 the electrogram at the site of ablation was predominantly ventricular (p less than 0.05); frequent or subintrant attacks of reciprocal orthodromic rhythm (RR); in 3 cases RR began on simple variations of heart rate; it reflected a loss of the anterograde conduction hidden in the accessory pathway and required a second ablation; in 1 case RR initiated by @entity1165 bursts revealed the presence of a second accessory pathway; @entity591 , spontaneously resolved, in 4 @entity1 (11%). No @entity955 was recorded. In @entity1 with @entity1165 ablation was delivered in the right ventricle (160 J, 9 @entity1 ) or in the left ventricle (240 J, 16 @entity1 ). The effects of ablation could only be interpreted in 21 @entity1 who underwent 25 ablations.(ABSTRACT TRUNCATED AT 250 WORDS)
