[Long-term follow-up of patients after interruption of the atrioventricular conduction by electrode catheter and DC shock: experiences with 100 patients].
Long-term follow-up (44 +/- 21 months) was studied in 100 patients (pts) (mean age 56 +/- 12 years) who underwent direct current ablation because of drug-resistant supraventricular arrhythmias. In 85 pts (85%) complete atrioventricular (AV) block was initially achieved. During the follow-up period, AV conduction resumed in 15 pts (15%). Thirteen pts underwent another ablation session and complete AV block was achieved in 11/13 pts (85%). After catheter ablation complete AV-block was achieved in 96 pts and the remaining four pts had second-degree AV-block. Complications like pericardial effusion, arterial hypotension or ventricular arrhythmias occurred in 18 pts. Total mortality was 13% (13 pts): one patient died suddenly, and seven pts died from cardiac causes (heart failure in six pts, reinfarction in one patient). Transcatheter direct-current ablation is an effective method to interrupt AV conduction and to treat patients with drug-resistant supraventricular arrhythmias. Although there is a small risk of severe complications, this procedure should be reserved for pts with supraventricular arrhythmias who do not respond to conventional drug treatment.
Trappe
H J
HJ
Abteilung Kardiologie, Medizinische Hochschule Hannover.
Huang
J
J
Wenzlaff
P
P
Klein
H
H
Schultze-Florey
T
T
Lichtlen
P R
PR
D000328:Adult; D000368:Aged; D002036:Bundle of His / Q000503:physiopathology; D006328:Cardiac Catheterization / Q000295:instrumentation*; D004554:Electric Countershock / Q000295:instrumentation*; D004562:Electrocardiography; D004564:Electrocoagulation / Q000295:instrumentation*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D011183:Postoperative Complications / Q000401:mortality / Q000503:physiopathology*; D011788:Quality of Life; D015996:Survival Rate; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000401:mortality / Q000503:physiopathology / Q000601:surgery*
Langzeitverlauf von Patienten nach Unterbrechung der atrioventrikulären Uberleitung durch Elektrodenkatheter und DC-Schock: Erfahrungen bei 100 Patienten.