Implantation by Electrophysiologists of 100 Consecutive Cardioverter Defibrillators With Nonthoracotomy Lead Systems
作者:
S. Strickberger,
John Hummel,
Emile Daoud,
Mark Niebauer,
Brian Williamson,
K. Man,
Laura Horwood,
Alice Schmittou,
Steven Kalbfleisch,
Jonathan Langberg,
Fred Morady,
期刊:
Circulation
(OVID Available online 1994)
卷期:
Volume 90,
issue 2
页码: 868-872
ISSN:0009-7322
年代: 1994
出版商: OVID
关键词: defibrillation;ventricular tachycardia;ventricular fibrillation
数据来源: OVID
摘要:
BackgroundTraditional lead systems for implantable cardioverter defibrillators (ICDs) require a thoracotomy for placement. Nonthoracotomy lead systems are available and are usually implanted by an electrophysiologist and a surgeon. The purpose of this study was to prospectively evaluate the safety and efficacy of ICD implantation with a nonthoracotomy lead system by electrophysiologists.Methods and ResultsA consecutive series of 100 patients (mean age, 61±13 years, ±SD) underwent ICD implantation with a nonthoracotomy lead system while intubated and under general anesthesia. Seventy-seven patients had coronary artery disease, 15 had idiopathic cardiomyopathy, 6 had miscellaneous heart disease, and 2 had structurally normal hearts. The mean ejection fraction was 0.29±0.13. Sixty-eight patients had suffered a cardiac arrest, and 32 had had ventricular tachycardia or syncope. All patients except 9 underwent electrophysiological testing and had failed 1 ± 1 drug trials before ICD implantation. Three types of nonthoracotomy lead systems were used. The nonthoracotomy lead with an ICD was successfully implanted in 96 patients (96%). Of the unsuccessful implants, 1 patient did not have venous access, the passive fixation lead in 1 would not remain lodged, 1 had elevated defibrillation thresholds, and 1 developed a hemopneumothorax while venous access was being obtained. The mean defibrillation threshold was 17±6 J. The mean procedure duration was 161±57 minutes. When a subcutaneous patch was used (n=58), the procedure duration was 189±5 minutes, and when a subcutaneous patch was not required (n=40), the procedure lasted 123±37 minutes (P<.0001). Patients remained in the hospital 4.5±4.1 days after implantation, with no procedure-related deaths. Acute complications occurred in 10 patients; 2 had lead dislodginents, 1 with previous abdominal surgery had his abdominal cavity entered (without other complications) while the ICD pocket was being made, 1 had postoperative heart failure, 1 developed a large hematoma when anticoagulation therapy was initiated, 3 required reintubation because of excessive anesthesia, 1 developed superficial cellulitis, and 1 developed a hemopneumothorax secondary to a lacerated subclavian vein. During 6±3 months of follow-up, 2 patients developed lead fractures.Conclusions(1) Electrophysiologists can implant an ICD with a nonthoracotomy lead system safely and with a high success rate; (2) use of a subcutaneous patch correlates with longer procedure durations; and (3) special precautions should be taken in patients with previous abdominal surgery.
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