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影响冠状动脉旁路移植术加心瓣膜手术患者远期预后的危险因素分析

摘要： 目的 探讨影响行冠状动脉旁路移植术（CABG）加心瓣膜手术患者远期预后的危险因素。 方法 2003年1～10月北京阜外心血管病医院共收治冠状动脉粥样硬化性心脏病合并心瓣膜疾病患者68例，纳入研究66例(院内死亡2例)，男23例，女43例；年龄50～76岁(61.33±6.60岁)。行CABG+主动脉瓣手术19例，CABG+二尖瓣手术32例，CABG+双瓣膜手术15例；移植血管1.79±1.18支。先将各变量分别进行Cox风险模型单变量分析，再将所有有统计学意义的变量同时纳入Cox风险模型多变量分析。 结果 随访65例，随访时间50.65±17.98个月，随访期间死亡11例，其中死于胃癌2例，抗凝并发症脑出血1例，心源性猝死4例和心力衰竭4例。失访1例。Cox风险模型多变量分析结果显示：左心室射血分数（LVEF）≤40%（RR=5.960，P=0.010）、术前有糖尿病史（RR=7.170，P=0.004）是影响患者术后远期预后的独立危险因素。 结论 LVEF和术前有糖尿病史是影响CABG加心瓣膜手术患者远期预后的危险因素，术后严格控制血糖和提高心功能能改善患者的远期预后。

Early and Mid-term Outcomes of Morphologic Tricuspid Valve Replacement with Preservation of Entire Valvular and Subvalvular Apparatus in Corrected Transposition of Great Arteries

Abstract： Objective To investigate the early and mid-term outcomes of morphologic tricuspid valve replacement by means of intravalvular implantation in corrected transposition of great arteries（cTGA）. Methods From January 2009 to January 2012，11 patients with cTGA were surgically treated in Fu Wai Hospital. There were 9 male patients and 2 female patients with their mean of age of（37.8±11.7）years and mean body weight of（73.0±11.3）kg. All the patients underwent morphologic tricuspid valve replacement with preservation of the entire valvular and subvalvular apparatus. Simultaneous surgical procedures included repair of ventricular septal defect in 2 patients，repair of atrial septal defect in 4 patients，pulmonary valvuloplasty in 1 patient，reconstruction of functional right ventricular outflow tract in 4 patients and repair of coronary-pulmonary artery fistula in 1 patient. Postoperative New York Heart Association （NYHA） classification, cardiothoracic ratio, morphological right ventricle ejection fraction, end-diastolic dimension of morphological right ventricle and left atrium were evaluated during follow-up. Results All the 11 patients were successfully surgically treated and followed up for an average duration of（13.0±10.6）months. There was no statistical difference between postoperative and preoperative average cardiothoracic ratio （0.54±0.06 vs. 0.57±0.09，t=1.581，P＞0.05），morphologic right ventricle ejection fraction （52.8%±9.0% vs. 54.9%±9.5%, t =0.712，P＞0.05），and end-diastolic dimension of . morphological right ventricle （54.3±7.5 mm vs. 56.9±9.2 mm，t =0.988，P＞0.05）. There was statistical difference between postoperative and preoperative average end-diastolic dimension of left atrium（42.1±8.9 mm vs. 53.4±11.1 mm，t =3.286，P＜0.05）and NYHA classification（Z = -2.640，P＜0.05）. Conclusion Intravalvular implantation of morphologic tricuspid prosthesis can protect the physiological structure of morphologic right ventricular and prevent furtherdamage to its function caused by morphologic tricuspid valve insufficiency. Postoperative dimension of morphologic left atrium and cardiac function are significantly improved. The early and mid-term outcomes are satisfactory．

心脏直视术后回输胸腔引流血30例

目的 探讨心脏直视术后回输未经洗涤的胸腔引流血的安全性和该技术对术后胸腔引流血量及库血需要量的影响. 方法 观察60例冠状动脉旁路移植术患者,并将其分为回输组和对照组,每组30例,分别测定两组血红蛋白、红细胞压积、红细胞计数和血小板计数. 结果 两组术后胸腔引流血差别无显著性意义,回输组患者引流血回输量为150～780 ml,平均280±155 ml ,节省库血40%.两组患者均未发生术后高热. 结论 心脏直视术后回输未经洗涤的胸腔引流血是安全、经济的,并可减少库血需要量.

心瓣膜置换术后电机械分离五例

Surgical Treatment of Pulmonary Atresia with Ventricular Septal Defect in Elder Children and Adults

Objective To investigate the surgical treatment methods and effects for pulmonary atresia with ventricular septal defect (PAVSD) in elder children and adults in order to promote the treatment effects. Methods From October 1996 to October 2008, we performed stage1 or staged biventricular repair on 39 PAVSD patients including 21 males and 18 females, ranging from 8 to 27 years old with an average age of 13.43 years. There were 14 cases of type A, 11 cases of type B, and 14 cases of type C. Among them, 23 patients underwent stage1 radical repair in which either human blood vessel with valves or bovine jugular vein with valves were used to connect the pulmonary artery and the right ventricular outflow tract. In these 23 patients, 3 patients complicated with major aortopulmonary collaterals(MAPCAs) underwent unifocalization (UF) operation. The other 16 patients received staged repair, including 9 cases of systemic to pulmonary artery shunt and 7 of staged radical cure. Results There were 6 perioperative deaths with a total mortality of 15.38%(6/39), including 4 (17.39%) stage1 radical repair cases and 2 (12.50%) staged radical repair cases. The former 4 were all type C patients, dying from low cardiac output due to increased pulmonary arterial pressure. In the latter 2 deaths, 1 was a type B secondary shunt patient, and the other was a type C staged radical repair case, both of whom died of bleeding caused by aortic injury in the succeeding operations. Followup was done on 28 cases with a followup rate of 84.85%. The followup time ranged from 14.0 months to 9.2 years with 5 cases missing. No patient died during the followup, and 9 patients maintained their cardiac function at class Ⅰ, 13 at class Ⅱ, 5 at class Ⅲ and 1 at class Ⅳ. Three patients had aortic valve regurgitation of small to medium volume, the treatment of which included an administration of oral potassium diuretic medication and regular follow-up. Conclusion Pulmonary vessels of elder children and adults with PAVSD are usually injured severely and oftentimes it is complicated with MAPCAs. Standard for stage1 radical repair should be defined more strictly based on the present one.

心脏手术后腔静脉引流至左心房手术矫治六例

Clinical Features and Surgical Strategy of Ebstein's Anomaly in Adults

ObjectiveTo analyze clinical features and surgical strategies of Ebstein's anomaly (EA) in adults. MethodsSeventy-eight adult patients with EA underwent surgical treatment in Fu Wai Hospital from January 2008 to December 2011. There were 24 males and 54 females with their age of 18-54 (33.0±9.5) years. Preoperatively, 72 patients were in NYHA class Ⅰ or Ⅱ, and 6 patients were in NYHA class Ⅲ or Ⅳ. Clinical presentations mainly included exercise capacity deterioration and exertional dyspnea. Preoperative echocardiography showed downward displacement of the septal leaflet (SL) of the tricuspid valve (TV) of 34.8±12.7 (20-60) mm. Three patients had severe dysplasia or agenesis of tricuspid SL. Downward displacement of the posterior leaflet (PL) of TV was 46.8±11.6 (20-70) mm, and 1 patient had agenesis of tricuspid PL. Average TV annulus was significantly enlarged with 60±10 (37-70) mm. Mean atrialized portion of the right ventricle was about 40%. There were 18 patients with moderate tricuspid regurgitation (TR) and 60 patients with moderate-to-severe TR. Seventy-five patients received tricuspid valvuloplasty (TVP). Fifty-six patients received plication of the atrialized right ventricle (ARV), 20 patients received ARV resection, and 2 patients didn't receive any specific management of ARV. Thirty-two patients received TVP with a prosthetic ring. Three patients underwent tricuspid valve replacement. ResultsTwo patients died posto-peratively, and in-hospital mortality was 2.5%. Postoperative recovery of the survival patients was good. There was no severe atrioventricular block or other complication. Echocardiography before discharge showed good function of TV without moderate or more severe TR. Mean follow-up was 26 months. None of the patients needed re-operation. ConclusionThe incidence of acute heart failure in EA adults is low. TVP is the main surgical procedure to achieve main goals of surgical treatment including improvement in heart function, exercise capacity and quality of life.

Predictive Risk Factors for Prolonged Stay in Intensive Care Unit in Patients Undergoing Cardiac Valvular Surgery

Objective To analyze risk factors for prolonged stay in intensive care unit (ICU) after cardiac valvular surgery. Methods Between January 2005 and May 2005, five hundred and seven consecutive patients undergone cardiac valvular surgery were divided into two groups based on if their length of ICU stay more than 5 days (prolonged stay in ICU was defined as 5 days or more). Group Ⅰ: 75 patients required prolonged ICU stay. Group Ⅱ: 432 patients did not require prolonged ICU stay. Univariate and multivariate analysis (logistic regression) were used to identify the risk factors. Results Seventyfive patients required prolonged ICU stay. Univariate risk factors showed that age, the proportion of previous heart surgery, smoking history and repeat cardiopulmonary bypass (CPB) support, cardiothoracicratio, the CPB time and aortic crossclamping time of group Ⅰ were higher or longer than those of group Ⅱ. The heart function, left ventricular ejection fraction (LVEF), pulmonary function of group Ⅰwere worse than those of group Ⅱ(Plt;0.05, 0.01). Logistic regression identified that preoperative age≥65 years (OR=4.399), LVEF≤0.50(OR=2.788),cardiothoracic ratio≥0.68(OR=2.411), maximal voluntary ventilation observed value/predicted value %lt;71%(OR=4.872), previous heart surgery (OR=3.241) and repeat CPB support during surgery (OR=18.656) were final risk factors for prolonged ICU stay. Conclusion Prolonged ICU stay after cardiac valvular surgery can be predicted through age, LVEF, cardiothoracic ratio, maximal voluntary ventilation, previous heart surgery and repeat CPB support during surgery. The patients with these risk factors need more preoperative care and postoperative care to reduce mortality, morbidity and avoid prolonged ICU stay after cardiac valvular surgery.

Modified De Vega Annuloplasty Is Superior to Traditional De Vega Technique

Objective To compare the efficacy of one kind of modified De Vega technique and traditional De Vega technique. Methods From January 2002 to August 2005, 70 patients were treated with tricuspid valve plasty. These patients were divided into modified De Vega annuloplasty group and traditional De Vega annuloplasty group randomly before operation. The tricuspid regurgitation （TR） were functional and secondary in all patients. The grade of TR and New York Heart Association（NYHA） functional class of two groups were analyzed by Ridit analysis. The changes of right ventricular end-diastolic dimension of two groups were analyzed by paired-sample t test. Results There was no statistically difference between two groups about preoperative characteristics. The follow-up time of modified De Vega annuloplasty group was 12.91±8.84 months and that of traditional De Vega annuloplasty group was 13.61±11.21 months. There was no significant difference between two groups. The outcome of follow-up was satisfactory. In modified De Vega annuloplasty group, there were 12 patient with no TR, 17 patient with mild TR, and 6 patients with moderate TR. There was no patient with severe TR. In traditional De Vega annuloplasty group, 7 patients were observed with no TR, 19 patients mild TR, 7 patients moderate TR and 2 patients severe TR. In modified De Vega annuloplasty group, 32 patients were in NYHA class Ⅰ, 2 patients in NYHA class Ⅱ and only 1 patient in NYHA class Ⅲ. As for traditional De Vega annuloplasty group, 31 patients were in NYHA class Ⅰ, 2 patients in NYHA class Ⅱ and 2 patients in NYHA class Ⅲ. The Ridit analysis showed that there was no significant difference about NYHA class between two groups. However, the difference of TR between two groups was statistically significant （P〈0.05）. The outcome of modified De Vega annuloplasty was superior to that of traditional De Vega technique. Paired-sample t test demonstrated that the modified De Vega annuloplasty could reduce the right ventricular end-diastolic dimension significantly （P〈0.05）. However, the right ventricular end-diastolic dimension of traditional De Vega annuloplasty groups did not change significantly （P 〉 0.05）. Conclusion The efficacy of modified tricuspid De Vega technique is superior to that of traditional De Vega technique in patients with secondary TR.

《瓣膜病术后抗凝个体化和低抗凝标准研究》 阶段研究进展