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find Author "王志农" 7 results
  • 部分型房室间隔缺损二尖瓣处理策略

    目的 总结部分型房室间隔缺损(PAVSD)患者外科手术的近远期疗效,探讨二尖瓣处理方法。 方法 回顾性分析1990年1月至2008年12月于第二军医大学长海医院行外科治疗PAVSD患者118例的临床和随访资料,男 51例,女67例;年龄7个月~62岁(28.5±12.6岁)。均有原发孔型房间隔缺损和不同程度的二尖瓣前瓣裂隙,其中二尖瓣中重度反流78例,三尖瓣中重度反流56例。手术均在中度低温体外循环下进行。术后通过门诊和电话随访。 结果 术后早期死亡2例,病死率1.69%。发生其他严重并发症为再次气管内插管5例,左心辅助1例,Ⅲ°房室传导阻滞1例。术后随访103例,随访时间3个月~18年(91.2±25.6个月)。再次手术8例,距第一次手术时间为5 d~18年(10.5±5.6年)。再次手术死亡1例。随访生存的102例患者生活质量均有明显改善。二尖瓣无反流70例,微量和轻度反流17例,中度4例。行二尖瓣置换术患者瓣膜功能良好,无抗凝相关并发症。心房颤动19例,Ⅰ°房室传导阻滞21例,频发性房性早搏4例。 结论 二尖瓣修复是PAVSD矫治手术成功的关键,应综合应用二尖瓣成形修复的方法,尽量消除二尖瓣反流;术后二尖瓣再反流是再次手术的主要原因,对中重度二尖瓣反流患者应定期随访和及时手术。

    Release date:2016-08-30 05:57 Export PDF Favorites Scan
  • Longterm Results of Tetralogy of Fallot in Adults

    Abstract: Objective To evaluate the longterm results of surgical treatment of tetralogy of Fallot (TOF) in adults and discuss the perioperative treatment skills. Methods From January 2000 to March 2008, 149 patients older than 14 years with tetralogy of Fallot received surgical treatment in Changhai Hospital. Among the patients, there were 78 males and 71 females with ages ranged from 14 years to 53 years and the average age was 26.3 years. Twenty patients had previous pulmonary arterial shunts before radical treatment. A total of 129 patients underwent primary radical treatment. Thirtyeight patients received a right ventricular outflow tract patch, 107 patients had transannular patch, and 4 patients had homograft aorta with valves. Results Hospital mortality was 4.0%(6/149). Four patients died of low cardiac output syndrome (LCOS), and multiple organ failure, and 2 patients died of acute renal failure. The postoperative complications included pleural effusion in 11 patients, pulmonary edema in 10 patients, severe LCOS in 9 patients, severe cardiac arrhythmia in 7 patients, reoperation for excessive bleeding in 7 patients, reintubation in 6 patients, and residual ventricular septal defect (VSD) in 5 patients (two of them had reoperation for residual VSD repair and 2 received transcatheter closure of VSD). One hundred and thirtyfour patients were followed up for 3 to 102 months (47.2±28.6 months) with a followup rate of 93.7%(134/143). Late death occurred in 2 patients, one of whom died of secondary infective endocarditis and the other had a sudden death 29 months after operation. During the followup, one patient had residual VSD (2 mm), but had a normal life. The peak systolic right ventricletopulmonary artery pressure gradient exceeded 40 mmHg in 4 patients. Two patients had severe pulmonary regurgitation. A total of 132 patients survived and had an improved life. One hundred and twentyone patients had class Ⅰ heart function (NYHA), and 11 patients in class Ⅱ. Conclusion The pathophysiologic conditions of the patients with tetralogy of Fallot in adults are very complicated due to longterm right ventricle outlet stricture and chronic hypoxia. Preoperative evaluations and postoperative treatment of complications are necessary. The systemicpulmonary arterial shunts should be performed when hypotrophy of the pulmonary arteries or left ventricles exists. Repair of tetralogy of Fallot in adults has acceptable morbidity and mortality rates with goodlongterm outcomes.

    Release date:2016-08-30 06:02 Export PDF Favorites Scan
  • 二尖瓣脱垂合并感染性心内膜炎的临床分析

    目的 总结二尖瓣脱垂(mitral valve prolapse,MVP)合并感染性心内膜炎(infectous endocarditis,IE)的临床特点、手术时机和手术前后超声心动图的特点。 方法 2000年6月至2007年12月我科共收治原发性MVP合并IE患者45例,术前心功能分级(NYHA)Ⅱ级15例,Ⅲ级21例,Ⅳ级9例。术前血培养阳性率为40%,最常见的为草绿色链球菌(38.9%)。术前超声心动图检查发现腱索断裂3例,急性左心功能衰竭9例,有脑血管意外6例。术中根据瓣膜质量和损伤情况,行二尖瓣成形术5例,二尖瓣置换术35例;同期行主动脉瓣置换术6例,三尖瓣成形术19例,冠状动脉旁路移植术1例。 结果 术前死亡5例,3例死于脑血管意外,2例死于多器官功能衰竭;术后早期死亡1例,死于肾功能衰竭;长期生存39例,术后随访6个月~8年(平均2.7年),无晚期死亡,超声心动图复查未见心内膜炎复发及瓣周漏。 结论 MVP合并IE的临床特点为起病隐匿,心力衰竭、体循环栓塞(尤其脑栓塞)等并发症的发生率较高。对中至重度关闭不全的MVP合并IE患者应早期治疗。

    Release date:2016-08-30 06:04 Export PDF Favorites Scan
  • Effect of hyperpolarized arrest on alternations of microviscosity of myocardial cell membrane during cardiopulmonary bypass

    Objective To observe the influences of depolarized arrest and hyperpolarized arrest on alternation of fluidity of myocardial cell membrane during cardiopulmonary bypass (CPB) and evaluate the protective effects on myocardium of hyperpolarized arrest. Methods Seventy-two felines were randomized into three groups, each group 24. Control group: 180 minutes of CPB was conducted without aortic and vena caval cross-clamping. Depolarized arrest group: hearts underwent 60 minutes of global ischemia after aortic cross-clamping (ACC) followed by 90 minutes of reperfusion. The cardioplegic solution consisted of St. Thomas solution (K+16mmol/L). Hyperpolarized arrest group: the protocol was the same as that in depolarized arrest group except that the cardioplegic solution consisted of St.Thomas solution with pinacidil (50 mmol/L,K+5mmol/L). Microviscosity, the reciprocal of fluidity of myocardial membrane was measured in all groups by using fluorescence polarization technique. (Results )Microvis cosity of myocardial cell in depolarized arrest group during ACC period was significantly higher than that before ACC and kept on rising during reperfusion period. Microviscosity of myocardial cell in hyperpolarized arrest group during ACC was trending up and reperfusion periods as well, but markedly lower compared to that in depolarized arrest group at corresponding time points(Plt;0.01). Conclusion Hyperpolarized arrest is more effective in protecting myocardial cells from ischemia-reperfusion injury than depolarized arrest during CPB by maintaining better fluidity of myocardial membrane.

    Release date:2016-08-30 06:28 Export PDF Favorites Scan
  • Protective Effect of Blood Cardioplegia with Leukocyte Depletion on Myocardial Reperfusion Injury

    Objective To elucidate the protective effect of leukocyte depletion on the myocardium during the settings of myocardial reperfusion injury. Methods Twenty patients undergoing cardiopulmonary bypass with continuous infusion of blood cardioplegia were randomized into two groups:the control group (n=10) with no leukocyte depletion filter used, and the experimental group (n=10) with the use of leukocyte depletion filter on the bypass circuit. The blood cells count before and after the filtration were measure...

    Release date:2016-08-30 06:35 Export PDF Favorites Scan
  • Cardiac Surgery Via Minimally Invasive Incision versus Median Sternotomy: A Systematic Review

    Objective To evaluate whether minimally invasive (MI) cardiac surgery has advantages over conventional median sternotomy (MS), so as to provide evidence for clinical diagnosis and therapy. Methods We searched CBM, VIP, CNKI, PubMed, and Elsevier databases from 1995 through 2008. The literature about the therapeutic effect of minimally invasive cardiac surgery and conventional median sternotomy was identified. The data was extracted, and the methodological quality was evaluated by two reviewers independently. The Meta-analyses were performed using RevMan 4.2 software. Results A total of 8 studies involving 492 MI patients and 712 MS patients met the inclusion criteria. Of these eight studies, two studies were randomized trials and the other six studies were retrospective cohort studies. The results of meta-analyses showed that the MI group had a better postoperative effect, and the cardiopulmonary bypass time (WMD=16.45, 95%CI 2.56 to 30.35, P=0.02), chest-tube drainage (WMD= –132.63, 95%CI –208.53 to –56.72, P=0.0006) and hospitalization stay (WMD= –1.22, 95%CI –2.14 to –0.30, P=0.009) of MI group were less than those of MS group, but the aorta clamping time (WMD=0.47, 95%CI –1.35 to 2.29, P=0.61) and operating time (WMD=26.67, 95%CI –8.91 to 62.25, P=0.14) were not significantly different between the two groups. Conclusion The minimally invasive cardiac surgery has a better postoperative therapeutic effect than conventional median sternotomy cardiac surgery.

    Release date:2016-09-07 02:10 Export PDF Favorites Scan
  • The First 10 Balloon Dilated Aortic Valve Replacement Patients in China

    ObjectiveTo discuss the feasibility about the using of transcatheter aortic valve implantation (TAVI) in severe aortic valve stenosis chinese patients, then to make more exploration and accumulate enough experience. MethodsWe selected 10 out-patients with severe aortic valve stenosis and calcified with 9 males and 1 females at age of 76.4 (65-81) years in our hospital from January 2011 to March 2014. All the patients can't tolerate traditional open surgery through preoperative evaluation. So we chose the Sepian TX system, balloon dilated transcatheter aortic valve, to treat them via transfemoral approach. ResultsTen patients accomplished TAVI successfully. One patient was assisted by the left-ventricular puncture. No complication occurred. The function of aortic valve after TAVI improved significantly. The hospital stay time was 3-5 days. The patients were followed up for 3-34 months. One patient died of pulmonary cancer during the following-up. ConclusionTranscatheter balloon dilated aortic valve replacement can be used in chinese severe aortic valve stenosis patient, but more accurate preoperative preparation, evaluation, and operation are needed.

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