重度三尖瓣病变行三尖瓣置换术27例临床应用

目的 探讨三尖瓣置换术(TVR)手术指征及方式,总结三尖瓣病变的手术治疗经验.方法 2005年9月至2010年5月共施行TVR 27例,其中置换生物瓣膜23例,机械瓣膜4例;同期行二尖瓣置换术8例,二尖瓣、主动脉瓣双瓣膜置换术4例,房间隔缺损修补术4例.结果 手术病死率为11.1％(3/27),其中2例术后死于重度低心排血量综合征,1例术后第7天死于多器官功能衰竭.术后二次开胸止血1例,经积极治疗后顺利康复出院.随访率91.7％(22/24),1例术后3年死于生物瓣膜毁损,1例术后19个月死于脑栓塞.随访期间心功能NYHA分级恢复至Ⅰ级6例,Ⅱ级14例.结论 行TVR的患者中、远期病死率均较高,对于严重的三尖瓣病变患者,正确的手术方式、合理的围手术期处理是手术成功的关键.对于年龄大于50岁、随访不便以及未生育适龄女性患者来说,优先考虑置换生物瓣膜.     

胎儿埃布斯坦畸形一例

埃布斯坦畸形(Ebstein anomaly)是一种罕见的先天性心脏异常,伴有各种相关的心脏内异常,占所有先天性心脏异常的1%。埃布斯坦畸形的胎儿易并发重度三尖瓣返流,肺动脉瓣狭窄,肺动脉与主动脉比例变小,胸腔、腹腔、心包的积液。胎儿超声心动图对埃布斯坦畸形胎儿的详细诊断和预后评估起关键作用。妊娠早期胎儿埃布斯坦畸形的实际检出率高于新生儿期的报道。然而在妊娠早期和妊娠中期对胎儿心脏的正常描述并不能排除随后出现埃布斯坦畸形的可能性。报道1例妊娠23周时被诊断出埃布斯坦畸形,有明显的心脏肥大和严重的三尖瓣关闭不全的胎儿情况。     

二尖瓣成形术治疗二尖瓣关闭不全的疗效分析

目的分析二尖瓣瓣膜成形术(MVP)治疗中重度二尖瓣关闭不全(MR)患者的临床疗效。 方法以2013年6月至2017年6月徐州医科大学附属沭阳医院心胸外科收治的28例行MVP的MR患者为研究对象行回顾性分析,其中男性17例,女性11例;年龄50～72岁,平均(61.5±10.6)岁。所有患者术前均存在中重度MR。术前根据患者的合并症、病变部位的定位和合并腱索断裂与否,评估选择可行的MVP术式及合并手术：所有患者均采用正中切口、体外循环下手术治疗,术中行二尖瓣楔形切除、矩形切除及缘对缘缝合方法修补二尖瓣,合并腱索断裂或腱索冗长的行e-PTFE线人工腱索植入,常规行二尖瓣成型环植入,术中注水观察评估瓣膜成行效果。术中采取的二尖瓣成形方法统计：7例(25.0%)植入1～3根腱索,行二尖瓣矩切除术9例(32.1%),二尖瓣楔形切除术8例(28.6%),二尖瓣缘对缘缝合4例(14.3%),所有患者均置入鞍形二尖瓣成形环。对于合并心房颤动的患者同期行单纯左心耳切除术(LAA),或心房颤动射频消融术(AB)＋LAA;合并冠心病,则同期行冠状动脉搭桥术(CABG);合并中度及以上的三尖瓣关闭不全,则同期行三尖瓣成形环植入手术(TVP)。1例(3.6%)患者行MVP＋CABG,1例(3.6%)行MVP＋TVP＋LAA;3例(10.7%)行MVP＋TVP＋AB＋LAA;5例(17.9%)行MVP＋TVP;18例(64.3%)行单纯MVP。术后予华法林抗凝治疗3～6个月,合并心房颤动者终身抗凝治疗。统计所有患者采取的手术方式,包括合并手术、二尖瓣成形方法;对比患者术前及术后2年的返流、心功能改善情况以及LAD、左心室舒张末内径(LVEDD)、左心室射血分数(LVEF)水平的差异。 结果所有患者术前均为中重度返流,术后2年复查心脏彩超：21例(75.0%)无明显二尖瓣返流,6例(21.4%)二尖瓣轻度返流,1例(3.6%)二尖瓣中度返流。且所有患者的心功能较术前均提升1 ～ 2级。术前LAD[(49.42±12.58)mm],术后2年LAD[(38.17±9.84)mm],术前LVEDD[(50.91±7.93)mm],术后LVEDD[(44.37±7.42)mm],术后均较术前明显缩小;术前LVEF(51.69±9.71)%,术后LVEF(62.79±8.53)%,术后LVEF较术前明显增加。 结论MVP治疗MR安全有效、疗效显著,但远期效果还待进一步研究随访。     

成人Ebstein8例畸形行矫治术的护理

目的报告成人Ebstein畸形（三尖瓣下移畸形）患者手术治疗前后的护理经验。方法对8例成人Ebstein畸形患者在全麻低温体外循环下施行矫治术,术前充分做好患者准备,其其心理、生理达到最佳状态,术后护理要点：①加强呼吸道管理,维持良好的呼吸功能;②积极预防并处理心律失常;③维护右心功能,预防低心排综合征的发生;④密切观察尿量,维护肾功能。结果 2例患者术后出现频发室性早搏,合理使用利多卡因静脉给药后心律均恢复正常,其余患者未发生任何术后并发症,患者均痊愈出院。结论成人Ebstein畸形患者瓣叶畸形的程度一般较儿童为重,因此,行矫治术的难度大,风险高,对此类患者加强手术前后护理,可提高手术成功率。     

感染性心内膜炎外科治疗--附21例报告

目的　回顾分析感染性心内膜炎外科治疗经验。方法　对2 1例感染性心内膜炎患者术中彻底清除炎症坏死组织后,作主动脉瓣置换(AVR) 10例、二尖瓣置换(MVR) 7例、MVR 三尖瓣DeVega成形1例、三尖瓣置换(TVR) 1例、三尖瓣瓣膜缺损修复2例;同期室间隔缺损(VSD)修补2例、漏斗胸矫治1例;本组急症手术7例,均为主动脉瓣病变,其中高热不退2例、循环衰竭少尿5例;围手术期均使用足量敏感或广谱抗生素、改善心功能和全身营养支持治疗。结果　全组术后早期死亡2例,1例死于多器官系统衰竭(MOSF)、1例死于脑血管意外,其余19例均痊愈出院。结论　手术可提高感染性心内膜炎治疗成功率。恰当的手术时机、合理的手术方法和正确的围手术期处理,均是外科治疗成功的关键。     

自体心包材料二尖瓣环成形术的中期结果

目的 回顾性分析自体心包材料二尖瓣环成形术的中期效果.方法 采用自体心包材料行二尖瓣环成形术48例.Carpentier分型：Ⅰ型5例,Ⅱ型41例,Ⅲ型2例.瓣叶及瓣下结构成形包括后叶四边形切除30例,瓣叶修补7例,腱索转移4例,“缘对缘”技术2例,人工腱索3例.伴随手术包括主动脉瓣替换1例,三尖瓣成形11例,冠状动脉旁路移植术9例,冠状动脉肌桥松解1例,永久性起搏器植入1例.自体心包条的长度为（51.9 ±2.8）cm.术后随访15～96（62.2 ±21.3）个月.采用门诊随访及电话随访方式,随访内容包括临床症状、心功能、超声心动图检查等.结果 术后左心室舒张末期内径[（45.1±1.3） mm vs（58.6±1.7）mm,t=12.85,P＜0.01]、左心房内径[（38.0±1.4）mm vs （50.6±1.6） mm,t=9.58,P＜0.01]明显缩小.全组早期术后无明显反流.术后30 d内死亡1例.远期无死亡,术后发生脑梗死1例,远期出现中度反流1例.无溶血并发症,无再次手术.结论 自体心包材料二尖瓣环成形是一种抗凝并发症发生率低、耐久性可、心功能维护好、廉价的成形方法.     

275例主动脉瓣置换术应用连续缝合法的临床观察

目的探讨主动脉瓣置换中连续缝合方法的应用。方法275例病人主动脉瓣置换采用2/0Prolene线连续缝合法,用3根线265例、1根线10例。同期行二尖瓣置换232例,三尖瓣置换5例,三尖瓣成形112例,升主动脉置换9例,左房血栓清除术32例。结果全组均置入人工机械瓣膜,1例体外循环中发生抑肽酶过敏,需用阿拉明和大剂量激素;1例发生鱼精蛋白过敏再次转流,其他病例手术顺利。无1例住院死亡和严重并发症发生。结论采用连续缝合方法可简化手术操作,减少心肌缺血和转流时间,有利于心肌保护并减少术后并发症。     

Systemic thrombolysis in acute obstruction of an artificial valve

Prosthetic valve thrombosis is a characteristic, but fortunately not frequent complication of surgical valve replacement. Its occurrence may lead to haemodynamic catastrophe. Three cases involving prosthetic valve thrombosis are presented. Two patients suffered from thrombosis after tricuspid valve replacement (St. Jude Medical), while the third occurred after mitral valve replacement (Sorin). In the acute phase, systemic thrombolysis was initiated (2 MU Streptokinase during 22-28 hours). The obstruction of one of the tricuspid valves and the mitral valve was eliminated. Lysis of the other tricuspid valve was not complete, but it helped the patient to survive the acute phase until reoperation. Embolization occurred in the inferior extremity after thrombolysis of the mitral prosthetic valve, but it was cured. Two-dimensional and Doppler echocardiography (conventional and colour-coded) played an important role in the diagnosis of the obstruction and in the follow-up of the effectivity of thrombolysis. Systemic thrombolysis may be a lifesaving procedure in acute prosthetic valve thrombosis. In spite of the potentially dangerous complications, it has to be attempted.     

Determining factors in mitral valve reconstructive surgery. Report of 150 cases

150 patients had mitral valve repair for mitral valve incompetence. There were 57 males and 93 females with a mean age of 22 years. 60% of the patients were in Class II NYHA and 40% in Class III and IV. Type I was present in 18 patients, type II in 98 and type III in 34 cases. Mitral repair included correction of valve prolapse, valvular enlargement with pericardial patch and annuloplasty with semi-rigid ring in 128 cases and PTFE patch along the posterior leaflet in 12 cases. The perioperative mortality rate was 2.6%. All patients had early post-operative echocardiography. According to this, mitral regurgitation was absent or tiny in 135 patients, grade II in 10 cases and grade III in 2 cases. It was moderate or important in twelve patients. In the late post-operative period. All the others patients were reoperated upon for mitral dysfunction in a mean time of 37 months. The reason for reoperation was in the majority of the cases the recurrence of mitral regurgitation related to increase of valvular and sub valvular disease. The late mortality rate is 7%. Out of 126 reviewed survivors on the long run, 71 patients are asymptomatic in class I, 53 patients in class II and 2 patients in class III NYHA. The estimated mitral regurgitation by echography in those patients is absent or trivial in 96 cases. grade II in 29 cases and grade III in one case. Mitral valvuloplasty is the preferred procedure in mitral insufficiency surgical management. It is associated to a low early mortality and morbidity rate. Despite the need for reoperation in about 10% of the cases in the long follow-up, mitral repair offers a good quality of life without anticoagulant treatment.     

Relevant factors in mitral valve reconstructive surgery. Report of 150 cases

150 patients had mitral valve repair for mitral valve incompetence. There were 57 males and 93 females with a mean age of 22 years, 39% were less than 15 years of age. 60% of the patients were in Class II NYHA and 40% in Class III and IV. According to Carpentier's classification, isolated type I was present in 18 patients (12%), type II in 98 patients (64%) and type III in 34 cases (24%). Mitral repair included correction of valve prolapse, valvular enlargement with pericardial patch and annuloplasty with semi-rigid ring in 128 cases and PTFE patch along the posterior leaflet in 12 cases. The perioperative mortality rate was 2.6% (4 patients). All patients had early post-operative echocardiography. According to this, mitral regurgitation was absent or tiny in 135 patients (92%), grade II in 10 cases and grade III in 2 cases. It was moderate or important in twelve patients (8%). In the late post-operative period, three patients were lost to follow-up. All the others patients were reoperated upon for mitral dysfunction in a mean time of 37 months. The reason for reoperation was in the majority of the cases the recurrence of mitral regurgitation related to increase of valvular and sub valvular disease. The late mortality rate is 7% (10 patients). Out of 126 reviewed survivors on the long run, 71 patients (56%) are asymptomatic in class I, 53 patients (42%) in class II and 2 patients in class III NYHA. Mitral valvuloplasty is the preferred procedure in mitral insufficiency surgical management. It is associated to a low early mortality and morbidity rate. Despite the need for reoperation in about 10% of the cases in the long follow-up, mitral repair offers a good quality of life without anticoagulant treatment.     

Clinical prediction rule for 30-day mortality in Björk-Shiley convexo-concave valve replacement

BACKGROUND AND OBJECTIVE: We aimed to develop a clinical prediction rule for 30-day mortality in patients undergoing Bj?rk-Shiley convexo-concave (BScc) valve replacement, based on primary valve implantation procedures. METHODS: We studied 30-day mortality in 2,263 patients who received a BScc valve between 1979 and 1985 in The Netherlands. A logistic regression model was constructed and internally validated with bootstrapping techniques. RESULTS: Predictors for mortality were emergency operation, coronary artery disease, mitral or double-valve replacement, BScc implant being a reoperation, endocarditis, poor left ventricular function, age, concomitant tricuspid valve plasty, and aortic root replacement. The area under the receiver operating characteristic curve (AUC) for the predicted probability of death was 0.76 (95% CI 0.72-0.80). The model calibrated well, and had adequate discriminative ability in 195 BScc valve patients who underwent explantation, including 53 prophylactic explantations (AUC 0.81, 95% CI 0.73-0.89). CONCLUSION: A prediction rule derived from BScc valve implantation data performed well in patients undergoing explantation. Because the model provides accurate individualized estimates of the risk of mortality after reoperation, it may be helpful for decision making in patients with BScc valves.     

Surgical management with mitral valve replacement in young infants with congenital mitral valve diseases and complete atrioventricular septal defect

Objectives: The mechanical valve replacement may be the only option if the failing mitral valve cannot be repaired in complete AV septal defect (CAVSD), or congenital mitral valve stenosis and regurgitation in infants. In young infants the small mitral annulus - prothesis mismatch is a big problem. Aim: To assess the possibility of the left AV orifice repair and the necessity of mechanical valve replacement in CAVSD in young infants. Methods: Single center, retrospective study of 82 infants (13 pts under 3 months) who underwent complete repair of CAVSD between 2001 and 2007. Mechanical (bileaflet) valve replacement was required in 7 pts (5 weeks-7 months, 3.5-5 kg). The time interval between the two operations was 0-7 days, but the smallest baby spent 38 days in the intensive care unit waiting for increasing of his mitral annulus size from 11 to 15 mm. (Types of implanted valves: 2 Carbomedics 16 mm, 3 ATS 16 mm, 1 Sorin 17 mm, 1 Sorin 19 mm.) ATS 16 mm valves were implanted in 2 infants each with congenital mitral valve stenosis and regurgutation. Results: Early mortality (30 days) was 0, but 2 pts died in sepsis on the 46th and 71st postoperative day, respectively. In the follow-up period of 1-6 (mean 3) years 1 child (18 months later) needed reoperation (pannus removal), now all pts are doing well. Anticoagulation therapy was difficult in some cases without complication. Conclusions: The surgical repair of congenital mitral valve diseases and CAVSD can be performed successfully in very young infants. If the anatomic characteristics of the mitral valve is not suitable for repair, only mechanical mitral valve replacement can be performed successfully even in sometimes hopeless situation (one of our pts of 3.5 kg weight, is the smallest baby mentioned in the literature). Our early and mid-time results are good, but the re-replacement will be an unavoidable problem in the future.     

人工髋关节置换术的疗效分析

目的：探讨人工髋关节置换的手术适应证与手术相关的问题。方法：对1998—2004期间有完整临床随访资料的、行人工髋关节置换术的132例进行总结分析。结果：随访1～5a,按照Harris评分标准,术前平均49分,术后平均85分;优96例,良28例,中6例,差2例,优良率93%。并发症：假体松动下沉2例,关节脱位1例,假体柄下端穿出股骨1例,感染3例,无下肢深静脉栓塞、坐骨神经损伤,亦无其他全身性严重并发症发生。结论：只要选择好手术适应证,术前准备充分,术中操作熟练,术后处理得当,人工髋关节置换可使患者获得良好的效果,减少并发症。     

冠状动脉畸形15例临床分析

目的 总结先天性冠状动脉畸形的外科治疗经验.方法 15例冠状动脉畸形患者中冠状动脉瘘11例,冠状动脉起源异常4例.合并风湿性心瓣膜病1例,法洛四联症1例.非体外循环下手术6例,其中5例行孤立瘘支动脉结扎术,1例行冠状动脉切线缝扎术;体外循环下经心腔修补内瘘口手术4例;体外循环心脏停跳下切开冠状动脉修补外瘘口1例;左冠状动脉回旋支异常起源于左肺动脉行回旋支左肺动脉开口处结扎术1例,左锁骨下动脉与左冠状动脉吻合、肺动脉端开口处结扎术1例,左冠状动脉主干移植术2例,合并的心脏疾病均同时纠治.结果 1例因术后低心排血量综合征死亡,余14例术后心悸、胸闷、心脏杂音消失,均痊愈出院.结论 冠状动脉畸形一旦确诊,应及时采用适宜的矫治技术治疗.     

Challenges in the surgical management of hearts with a functional single ventricle

Nowadays, the complex congenital heart diseases with a functional single ventricular haemodynamics can be treated with good results with bi-directional Glenn (BDG) and total cavopulmonary connection (TCPC) procedure. The late results are determined by the ventricular function. AIMS: To assess the surgical results of "high risk" BDG and TCPC procedures, where the functional single ventricle were complicated by left sided SVS and IVC, total anomalous pulmonary venous connection (TAPVC) and severe atrioventricular valve insufficiency. These patients' were refused for surgery earlier. PATIENTS: Between 01. 01. 1994. and 30. 06. 2004. 112 BDG and 93 TCPC (42 pts with extracardiac conduit--ECC) procedures were performed. AGE: 3 months-29 yrs mean: 4,7 yrs, weight: 4-46 kg, mean: 15,5 kg. Among the "high risk" pts.: 1. Bilateral BDG in 19, left BDG in 9, left sided TCPC with ECC in 3 pts. were performed, 2. The associated TAPVC were operated on successfully in 3 pts. (bilateral BDG in 1, left BDG in 1, left sided TCPC with ECC in 1), 3. Mitral valvuloplasty in 2, artificial (mitral) valve implantation in 1, tricuspid valve closure or valvuloplasty in 3, (tricuspid) valve replacement in 1, common AV valve replacement in 1 pts were performed, 4. In 4 infants BDG was performed after Norwood I. procedure. RESULTS: Five pts. were lost after BDG procedure (Damous-Kaye-Stansen operation were performed as well in 3 pts.), and another 5 patients' systemic pulmonary shunts were re-done. Four patients after TCPC were lost and reoperation to BDG (n = 1) or shunt procedure (n = 2) was performed in 3 pts. Pre-discharge echocardiography confirmed mitral valvuloplasty with good results. No intervention was necessary in the follow up (1-3 yrs period) due to AV insufficiency and ventricular functions improved. CONCLUSION: On the basis of our series the "high risk" BDG and TCPC operations can be performed with an encouraging early result. The authors previously contraindicated associated defects can be surgically managed. Our short and mid-term results are feasible in this aspect. The long-term control of the "uni-ventricular" heart's ventricular function needs further investigation.     

Cardiovascular abnormalities in Marfan syndrome]

During the period February to December 1990, 52 adult patients were referred to our clinic for evaluation of the presence of the Marfan syndrome. In 24 out of 52 patients the Marfan syndrome was diagnosed. Cardiac abnormalities were found in all patients: mitral insufficiency because of mitral valve prolapse (83%), aortic dilatation (67%), aortic insufficiency (38%), tricuspid valve insufficiency with or without tricuspid valve prolapse (17%) and atrial septal defect (4%). In 3 patients an aneurysm of the ascending aorta was found. Early recognition of the Marfan syndrome is relevant for prevention of the life threatening complication of aortic dissection. In patients with valve abnormalities endocarditis prophylaxis is advised. A Marfan outpatient clinic offers optimal diagnostic possibilities.     

Evaluation of tricuspid valvuloplasty with mitral valve replacement in severely ill patients.

A group of twenty cases of class IV of New York Heart Association Classification is reported. They were selected among 55 cases of mitral valve replacement. Three patients died and this leaves us with a mortality rate of 15% which corresponds with that of others. Tricuspid valvuloplasty had to be carried out in seven cases. In two cases, reported in detail, two commissures and ring had to be repaired. The nature of pathology was organic and functional while in the remaining five cases it was only functional. None of the cases required tricuspid valve replacement. We believe that tricuspid valvuloplasty has an important position in heart surgery and should not be underestimated. Also, we conclude that no patient should be denied operation on the basis of the severity of his disease unless advanced coronary disease or primary myocardiac disease are also involved.     

Absence of cardiac valve dysfunction in obese patients treated with sibutramine.

OBJECTIVE: Serotonin-releasing agents prescribed as weight-loss medications have been implicated as a cause of acquired aortic and mitral valve abnormalities. Sibutramine hydrochloride (MERIDIA) is a serotonin and norepinephrine reuptake inhibitor with proven efficacy of weight reduction. The purpose of this study was to determine the incidence of cardiac valve disease in sibutraminetreated patients. RESEARCH METHODS AND PROCEDURES: Obese patients with type 2 diabetes mellitus enrolled in an ongoing double-blind, placebo-controlled, parallel-arm, 12-month study of sibutramine (followed by a 12-month open label extension) underwent transthoracic echocardiographic imaging and color Doppler interrogation for assessment of cardiac valve anatomy and function. RESULTS: A total of 210 patients were evaluated. Of these, 133 were receiving sibutramine (72 in the double-blind period), and 77 were receiving placebo. The mean+/-Standard Deviation age was 54+/-9 years, and the mean duration of treatment was 229+/-117 days (approximately 7.6 months). The prevalence of left-sided cardiac valve dysfunction was low and similar for the two treatment groups (sibutramine 3/133, or 2.3%; placebo 2/77, or 2.6%). All five cases were cases of aortic insufficiency; four were mild, one was severe (in a placebo patient). All three sibutramine cases were patients over age 50; two had a history of systemic hypertension. CONCLUSION: The prevalence of left-sided cardiac valve dysfunction was not higher than background in obese patients treated with sibutramine for an average of 7.6 months.     

人工心脏瓣膜再次置换手术的体外循环管理

[目的]回顾总结30例再次心脏瓣膜置换手术的体外循环(CPB)管理和方法。[方法]对2005年1月～2010年1月的30例再次心脏瓣膜置换手术患者,术前进行全面评估,充分准备,术中采用适宜的插管部位,自体血液回收,中一高流量,维持平均动脉压(MAP)50～80mmHg。[结果]二尖瓣或主动脉瓣单瓣置换16例;二尖瓣+主动脉瓣置换7例;二尖瓣+主动脉瓣+三尖瓣置换4例;三尖瓣置换3例,无手术死亡,术后死亡2例。[结论]再次心脏瓣膜置换手术中,术前充分准备,选择适当插管部位,术中加强血液保护、心肌保护,采取综合措施是保证CPB成功的关键。     

Ebstein's anomaly of the tricuspid valve following prenatal exposure to lithium

An 18-year-old man visited the outpatient cardiology clinic because of a cardiac murmur found at a medical examination for military service. An Ebstein's anomaly was diagnosed, with tricuspid valve insufficiency. Exposure to lithium in utero was established. Literature reports indicate an association between exposure to lithium in utero and cardiac anomalies, notably Ebstein's anomaly.