García-Rinaldi Raúl
Cardiovascular Surgery Section, Advanced Cardiology Center, Maya-güez, Puerto Rico 00681.
Tex Heart Inst J. 2007;34(3):310-2.
Treatment of endocarditis of the tricuspid valve is very complex. Valvectomy without replacement can result in significant postoperative morbidity, and replacement is hazardous due to the possibility of prosthetic infection. Repair of the tricuspid valve is the best alternative. Many ingenious methods have been devised to repair the tricuspid valve in patients with infective endocarditis. However, repair of the endocarditic anterior leaflet presents a difficult surgical problem. We have developed a technique to replace the central portion of the anterior leaflet, in which most of the leaflet is excised and replaced with autologous pericardium. By preserving a small rim of the leaflet, we preserve the lateral and medial chordal attachments. Supplemental neochordae are created with polytetrafluoroethylene sutures. An edge-to-edge repair is used to correct residual insufficiency of the valve. We have used this technique in 4 patients. One patient died 1 month after surgery, but with a competent tricuspid valve. Three patients are now alive, 48, 34, and 1.5 months after surgery. Their tricuspid valves are functional, moving well, and competent. We conclude that the centrally infected anterior leaflet of the tricuspid valve can be replaced with autologous pericardium. The implantation of polytetrafluoroethylene neochordae and edge-to-edge repair can be used to achieve valve competence. Short- and medium-term follow-up in patients who have been treated with these techniques demonstrates that the valve remains fully mobile and competent.
三尖瓣心内膜炎的治疗非常复杂。不进行瓣膜置换的瓣膜切除术可导致显著的术后发病率,而由于人工瓣膜感染的可能性,瓣膜置换具有危险性。三尖瓣修复是最佳选择。已经设计出许多巧妙的方法来修复感染性心内膜炎患者的三尖瓣。然而,心内膜炎的前叶修复是一个困难的外科问题。我们开发了一种技术来替换前叶的中央部分,其中大部分叶被切除并用自体心包替换。通过保留叶的一小边缘,我们保留了外侧和内侧腱索附着。用聚四氟乙烯缝线创建补充新腱索。采用边对边修复来纠正瓣膜残留关闭不全。我们已在4例患者中使用了该技术。1例患者术后1个月死亡,但三尖瓣功能正常。3例患者目前存活,分别在术后48、34和1.5个月。他们的三尖瓣功能正常,活动良好,关闭良好。我们得出结论,三尖瓣中央感染的前叶可用自体心包替换。聚四氟乙烯新腱索的植入和边对边修复可用于实现瓣膜关闭。对接受这些技术治疗的患者进行的短期和中期随访表明,瓣膜仍保持完全活动和关闭良好。