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find Author "徐志伟" 46 results
  • Surgical Treatment of Complete Transposition of Great Arteries with Ventricular Septal Defect and Pulmonary Stenosis

    Surgical treatment of complete transposition of great arteries with ventricular septal defect and pulmonary stenosis (TGA/VSD,PS) consists of Rastelli procedure, Lecompte procedure, Nikaidoh procedure, Yamagishi procedure and Ross-Konno switch procedure. Rastelli procedure and Lecompte procedure cause less myocardial lesion but more late complications. Nikaidoh procedure and Yamagishi procedure achieve better anatomical repair but involve more myocardial lesion. Ross-Konno switch procedure has a narrow surgical indication. So for patients with TGA/VSD,PS, different surgical methods should be used according to surgical indications and individual conditions. In this paper, the advantages and disadvantages, indication, contraindication, outcome and prospect of them are reviewed.

    Release date:2016-08-30 06:16 Export PDF Favorites Scan
  • Classification and Surgical Management of Coronary Arterial Anomalies in Complete Transposition of the Great Arteries

    Abstract: The complete transposition of the great arteries (TGA) is one of the commonest congenital cardiac anomalies in cyanosis. In untreated patients, death occurs early in infancy. Nowadays arterial switch operation (ASO) has been widely proposed to treat TGA without pulmonary valve stenosis. Meanwhile, surgical risks and mortality will be increased if TGA is accompanied by coronary arterial anomalies. So proper surgical management of abnormal coronary artery has a significant influence on the outcome of ASO. The classification, operation methods and surgical results were reviewed in this article.

    Release date:2016-08-30 06:08 Export PDF Favorites Scan
  • Repair of Truncus Arteriosus: Choice of Right Ventricle Outflow Tract Reconstruction

    Corresponding author: XU Zhi-wei, E-mail: zwxumd@online.sh.cn Abstract: Objective To compare the two different ways of right ventricle  pulmonary artery (RV-PA) reconstruction at repair of persistent truncus arteriosus(PTA), the direct RV-PA anastomosis and extra conduit connection, in order to find the better way. Methods From Feb. 2000 to Sept. 2006, 23 patients had undergone the repairs of truncus arteriosus in our hospital, age at operation from 1.5 to 63.3 months. Patients were divided into 2 groups according to the way of RV  PA reconstruction. Group Ⅰ : 18 of them, using direct RV-PA anastomosis, group Ⅱ : 5 of them, using valved homograft or Gore-Tex conduit. 3 patients were associated with interrupted aortic arch (IAA). Kaplan-Meier was used to calculate postoperative mortality, survival time and re-operation situation. Paired t-test and group t-test were used to evaluate late pulmonary growth and cardiac function.Results There were 2 early hospital death, there were 17 patients in follow-up for 2.14 ± 1.97y (32.00d-6.95y). No later death during follow-up. Total survival rateo was 91.30%(21/23), 95% CI of survival time was 5.55-7.15y. Survival ratio of group Ⅰ was 94.40%, and that of group Ⅱ was 80%. One patient had undergone re  operation for right ventricular outflow tract obstruction (RVOTO). The difference between the diameter of postoperative RV-PA anastomosis was statistically significant. The early diameter of group Ⅰ was 1.01 ± 0.26cm, later was 1.32 ± 0.45cm(P=0.019). The velocity of flow at the position of anastomosis and the peristome of right pulmonary artery (RPA)/left pulmonary artery (LPA) was acceptable. Compared the postoperative cardiac function, late left ventricle ejection fraction (LVEF) really improved with a significant difference [ group Ⅰ , early was 62.82%, late was 69.87%(P=0.026); group Ⅱ , early was 58.17%, late was 64.00%(P=0.029) ] . No re-operation for truncal valve regurgitation was needed. Conclusions The postoperative survival and follow-up results are satisfactory. A direct anastomosis of RV-PA continuity has the potential for right ventricle outflow tract (RVOT) growth and associated with low rate of pulmonary artery and bifurcation obstruction. The heart function is really improved during follow-up. IAA and truncal valve regurgitation are two major risk factors of associated with hospital death.

    Release date:2016-08-30 06:08 Export PDF Favorites Scan
  • Bloodless Surgery and Its Application in Cardiac Surgery

    Bloodless surgery is a comprehensive and systematic perioperative treatment approach in order to avoid allogeneic transfusion for surgery,improve patient prognosis,and relieve blood shortage. Bloodless heart surgery indicates some perioperative strategies to avoid allogeneic transfusion and improve clinical outcomes,which involves participation of cardiac surgeons and other professionals during cardiac surgery. For years,many cardiac surgeons have utilized several blood management and conservation techniques during open heart surgery to avoid allogeneic transfusion. Research results from major medical centers indicate that bloodless heart surgery can shorten postoperative recovery period and improve patientprognosis. In this review,we describe basic theory and systematic methods of bloodless surgery,and summarize applicationprogress of bloodless heart surgery and current status in China.

    Release date:2016-08-30 05:47 Export PDF Favorites Scan
  • L-精氨酸对乳猪深低温停循环脑代谢与结构的影响

    目的 通过深低温停循环(DHCA)转流模型,研究左旋精氨酸(L-arg)在低温缺血时对脑代谢和结构的影响. 方法 采用上海种白猪,3~4周龄,随机均分成4组: L-arg组,左旋硝基精氨酸甲酯(L-NAME)组, L-arg+L-NAME组和对照组,每组10只.按临床方法行心肺转流术,于转流前、降温末、复温末和转流结束等分别测定颈内静脉一氧化氮(NO)、脑皮质三磷酸腺苷(ATP)和颈内静脉乳酸含量.并行脑组织学和超微结构观察. 结果 降温末L-NAME组和对照组NO含量较其它两组明显下降(Plt;0.01).复温末,除L-NAME组外,其余3组均恢复至转流前水平(Plt;0.01),L-arg组NO水平在复温末较转流前高(Plt;0.01). 转流开始后大脑皮质ATP即有明显下降,L-arg组下降幅度最小,且在复温末已接近转流前水平;L-NAME组下降幅度最大(Plt;0.01). 转流开始后颈内静脉乳酸含量即升高,L-arg组和L-arg+L-NAME组上升幅度较小;降温末和转流结束乳酸含量较其它两组低(Plt;0.01). 大脑皮质组织学和超微结构检查显示,大脑皮质细胞结构变化L-arg组和L-arg+L-NAME组较对照组和L-NAME组轻. 结论 深低温停循环手术时,应用L-arg具有较好的脑保护作用,而L-NAME有脑损害作用.L-arg可部分逆转DHCA时L-NAME对脑组织的损害作用.

    Release date:2016-08-30 06:32 Export PDF Favorites Scan
  • Single Stage Repair of Interrupted Aortic Arch with Associated Cardiac Anomalies

    Abstract:Objective To summarize the experiences of single stage repair of interrupted aortic arch (IAA) associated with cardiac anomalies. Methods From Jan. 2000 to Dec. 2005, 48 patients admited in hospital and 35 patients were operated, the mean age at operation was 1.1 years. The associated anomalies included 23 cases of ventricular septal defect, 2 cases of transposition of great arteries, 3 cases of aortopulmonary window with aortic origin of right pulmonary artery, 2 cases of truncus arteriosus, 2 cases of double outlet right ventricle, 2 cases of stenotic fifth arch and 1 case of aberrant origin of right subclavian artery with mild hypoplastic decending aorta. Among them, 34 patients underwent single stage repair and 1 kid underwent palliative correction. Results There were 4 surgical deaths. The sequelae included one diaphragm paralysis and one 3rd degree of atrioventricular block. Only 5 kids recurred mild stenosis of aortic arch anastomosis and 2 death occurred during 3 months to 4 years of follow-up. Conclusion Though early surgical mortality for primary single stage repair is now relatively low, if appropriate interventions has been accomplished during perioperative period, but outcomes of IAA remain of concern, especially in patients with associated lesions.

    Release date:2016-08-30 06:23 Export PDF Favorites Scan
  • Comparison of Perioperative Results in Different Operative Approaches in Repairing Tetralogy of Fallot

    Objective To compare perioperative results between transventricular and transatrialtransventricular approaches in repairing tetralogy of Fallot (TOF), and to improve the surgical results. Methods The data of 1 423 consecutive patients who underwent complete repair of TOF between January 1998 and December 2007 were reviewed. 736 patients were repaired by the transventricular approach,and 687 patients by the transatrialtransventricular approach. Results Patients repaired by transventricular approach decreased from 100% in 1998 to 65% in 2002, and by transatrialtransventricular approach increased from 35% in 2002 to 79% in 2007. Aortic clamping time, cardiopulmonary bypass (CPB) time,mechanical ventilation time,and intensive care unit (ICU) stay in patients repaired by transatrialtransventricular approach had less than those in patients repaired by transventricular approach. No difference in transvalve patch ratio.There was lower morbidity in patients repaired by transatrialtransventricular approach in one to two organ systems dysfunction than that in patients repaired by transventricular approach. No difference in three or more organ systems dysfunction between them. Rate of residual ventricular septal defect(VSD), right ventricule to mean pulmonary artery (MPA) pressure gradient, tricuspid regurgitation, pulmonary artery regurgitation and arrhythmia in patients repaired by transatrialtransventricular approach were less than those in patients repaired by transventricular approach. Reoperative rate and mortality in patients repaired by transatrialtransventricular approach were less than those in patients repaired by transventricular approach. Conclusion TOF repair by the transatrialtransventricular approach fits to the actual conditions in China.

    Release date:2016-08-30 06:05 Export PDF Favorites Scan
  • 单心室的外科治疗

    目的 回顾总结单心室的手术治疗经验。 方法 1973年1月~1999年12月共纠治单心室47例,其中包括右心室型17例,左心室型14例,另16例诊断不明确。手术方式为肺动脉环缩术1例,丰唐手术(Fontan operation)23例,双向上腔静脉肺动脉吻合术23例。 结果 全组死亡7例,死亡率15%;行双向上腔静脉肺动脉吻合术患者中无死亡。 结论 单心室患者早期必须采取手术治疗,防止肺部充血和严重缺氧。双向上腔静脉肺动脉吻合术能改善单心室的压力和容量负荷,降低手术死亡率,减少Fontan手术的危险因素。

    Release date:2016-08-30 06:33 Export PDF Favorites Scan
  • Rapid two-stage arterial switch operation for neonatal D-transposition of the great arteries

    Objective To review and summarize the clinical outcomes of neonatal D-transposition of the great arteries by rapid two-stage arterial switch operation. Methods Between September 2002 and May 2003, five neonates with D-transposition of the great arteries were repaired by rapid two-stage arterial switch operation. The operative age was 83.0±72.2 day and weight was 4.7±0.9 kg. Because these patients came to the hospital late, the left ventricle was unable to accommodate the systemic pressure, so the left ventricle had to be prepared by pulmonary artery banding and systemic-pulmonary arterial shunt. After 6-9 days, the arterial switch procedure was performed. Results At first stage, one patient died of supraventricular tachycardia and oliguria after peritoneal dialysis. Four patients were repaired by arterial switch operation with no death. These patients were followed up for 2 to 10 months and had good development. The echocardiogram showed that there were no intracardiac residual shunt , the aorta and pulmonary artery anastomosis had no obstruction . The heart function was good, ejection fraction 0.68-0.77,fractional shortening 0.24-0.37. One patient had mild aortic valve regurgitation. Conclusion Rapid two-stage arterial switch operation is the best way for neonatal D-transposition of the great arteries that the left ventricle was unable to accommodate the systemic pressure.

    Release date:2016-08-30 06:27 Export PDF Favorites Scan
  • 一期手术纠治主肺动脉窗及伴发畸形

    目的 总结一期手术纠治主-肺动脉窗及伴发畸形的临床经验,以提高手术疗效。 方法 我科共收治26例主-肺动脉窗患者,男14例,女12例;年龄1.4±1.6岁;体重7.8±3.8kg。其中单纯主-肺动脉窗8例,合并主动脉弓中断、右肺动脉异常起源于主动脉、法洛四联症、房间隔缺损、室间隔缺损、二尖瓣反流和气管狭窄等18例。25例患者一期手术经主动脉切口补片关闭瘘口纠治主-肺动脉窗,同时纠治伴发的畸形;1例放弃治疗。 结果 全组无手术死亡。2例伴主动脉弓中断、动脉导管未闭和右肺动脉起源于升主动脉的新生儿术后3d延迟关胸;1例术后出血,3h后再次开胸止血。术后随访22例,随访时间1个月~4年。所有患者无明显的主动脉瓣上狭窄和肺动脉分支狭窄,2例残留轻度二尖瓣反流,1例残留轻至中度二尖瓣反流。 结论 主-肺动脉窗患者早期易发生肺动脉高压,一经诊断应立即手术。手术方式首选修补主肺动脉窗及一期纠治伴发畸形。尽管主-肺动脉窗可合并各种心内外畸形,但早期手术纠治可获得较好的中长期疗效。

    Release date:2016-08-30 06:09 Export PDF Favorites Scan
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