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单纯右心感染性心内膜炎的外科治疗

Surgical treatment of isolated right-sided infective endocarditis

摘要:

目的 总结分析单纯右心系统感染性心内膜炎的外科治疗及效果.方法 回顾性分析1994年1月至2009年2月接受手术治疗的单纯右心感染性心内膜炎患者28例的临床资料,其中男性18例,女性10例;年龄10~72岁,平均38岁;平均住院35.8 d.所有患者均以间断发热就诊.术前心功能不全(NYHAⅢ或Ⅳ级)14例,肺栓塞或肺炎25例,血培养阳性18例,超声证实心内赘生物形成27例.所有患者均在心肺转流下行赘生物清除、合并心脏畸形的矫治及三尖瓣手术,术后继续使用抗生素治疗2~3周.结果 术后1例患者二次开胸止血,2例患者因呼吸功能不全呼吸机辅助呼吸超过1周,3例发生肾功能不全,11例患者出院前超声示三尖瓣轻度或中度反流.1例患者术后因重度感染、多器官功能衰竭死亡,27例患者治愈出院.随访6个月~15年,患者心功能从术前的Ⅱ~Ⅳ级降到术后的Ⅰ~Ⅱ级,手术后心力衰竭症状明显改善;无复发病例.结论 外科手术可有效治疗由先天性心脏病或右心植入物引起的单纯右心感染性心内膜炎,并取得满意效果.

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Objective To analyze the surgical treatment and outcomes of isolated right-sided infective endocarditis. Methods From January 1994 to February 2009, 28 patients with isolated right-sided infective endocarditis underwent operation whose clinical data was retrospectively reviewed. There were 18male and 10 female, age ranged from 10 to 72 years with a mean of 38 years. All of the patients presented intermittent fever, 14 patients presented heart failure (NYHA class Ⅲ or Ⅳ), 25 patients had a history of pulmonary embolism or pneumonia, 18 patients had positive culture; 27 patients had intra-cardiac vegetations confirmed by echocardiogram. All the operations were performed under cardiopulmonary bypass.Antibiotic therapy continued for another 2 to 3 weeks after surgery. Results One patient had underwent reoperation due to mediastinal bleeding, 2 patients needed mechanical ventilation for more than 1 week after surgery, renal dysfunction occurred in 3 patients. After surgery, 11 patients presented with mild or moderate tricuspid regurgitation before discharge. One patient (3.6%) died in hospital after surgery due to severe infection and multi-organ failure, the other 27 patients were cured and discharged. Patients were followed up for 6 months to 15 years. NYHA class decreased in all patients, and the symptoms of heart failure improved significantly after surgery. No recurrent case was found. Conclusions Surgery is an effective treatment for isolated right-sided infective endocarditis with congenital heart disease or right heart implants. Good outcomes are observed in these settings.

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