Chandra Divay, Kar Biswajit, Idelchik Gary, Simpson Leo, Loyalka Pranav, Gregoric Igor D, Delgado Reynolds M, Frazier O H
Department of Medicine, Baylor College of Medicine, Houston, Texas, USA.
Am J Cardiol. 2007 Jun 15;99(12):1755-6. doi: 10.1016/j.amjcard.2007.01.067. Epub 2007 May 2.
The TandemHeart percutaneous left ventricular assist device is a left atrial-to-femoral artery bypass system that can be implanted percutaneously within 30 minutes and provides active circulatory support. The TandemHeart has been used mainly for temporary hemodynamic assistance during high-risk coronary interventions and postcardiotomy heart failure. This report describes initial experience with this device as a successful bridge to cardiac recovery in 3 patients with acute myocarditis. All patients presented with severe cardiogenic shock (mean cardiac index 1.1 L/min/m2), and end-organ perfusion could not be maintained despite intra-aortic balloon counterpulsation and the maximal use of vasopressive agents. The patients were successfully bridged to myocardial recovery with the TandemHeart (mean duration of support 5 days, range 2 to 8). The only complication was a short episode of ventricular fibrillation during device placement in 1 patient, which did not result in any morbidity or mortality. All patients were discharged home (mean duration of stay 15 days). In conclusion, the TandemHeart proved to be a safe and effective bridge to myocardial recovery in these patients with acute myocarditis.
串联式人工心脏经皮左心室辅助装置是一种左心房至股动脉旁路系统，可在30分钟内经皮植入，并提供有效的循环支持。串联式人工心脏主要用于高危冠状动脉介入治疗和心脏切开术后心力衰竭期间的临时血流动力学辅助。本报告描述了该装置作为3例急性心肌炎患者心脏恢复成功桥梁的初步经验。所有患者均表现为严重的心源性休克（平均心脏指数1.1L/min/m²），尽管使用了主动脉内球囊反搏和最大剂量的血管升压药物，仍无法维持终末器官灌注。患者通过串联式人工心脏成功过渡到心肌恢复（平均支持时间5天，范围2至8天）。唯一的并发症是1例患者在装置置入期间发生短暂室颤，但未导致任何发病或死亡。所有患者均出院回家（平均住院时间15天）。总之，在这些急性心肌炎患者中，串联式人工心脏被证明是心肌恢复的安全有效桥梁。
