title: Xiphoid mediastinoscopy for permanent myocardial implantation of a modified electrode. Preliminary report.
mesh_terms: D000818:Animals; D002404:Catheterization / Q000295:instrumentation; D004285:Dogs; D004566:Electrodes; D004582:Electronics, Medical / Q000295:instrumentation*; D006327:Heart Block / Q000601:surgery; D006335:Heart Injuries; D008482:Mediastinum; D008722:Methods; D009206:Myocardium / Q000473:pathology; D010138:Pacemaker, Artificial / Q000295:instrumentation*; D013249:Sternum / Q000601:surgery; D013906:Thoracoscopy; D013997:Time Factors