Partial anomalous pulmonary venous connection to the azygos vein with intact atrial septum

Summary The case of a 13-year-old girl with an unusual form of partial anomalous pulmonary venous connection is reported. Cardiac catheterization revealed anomalous connection of the right pulmonary veins to the azygos vein and an intact atrial septum. Rationale for nonsurgical management and four-year follow-up results are discussed.     

Scimitar syndrome associated with partial anomalous pulmonary venous connection at the supracardiac,cardiac, and infracardiac levels

Summary A 1-year-old female child was diagnosed to have scimitar syndrome associated with partial anomalous pulmonary venous connection of the right lung at the superior vena cava-right atrial junction, right atrium, and inferior vena cava. To our knowledge, this pattern of pulmonary venous connection has not been previously described in this syndrome.     

经左心房内吻合治疗心下型完全性肺静脉异位引流

目的 评估经左心房内径路吻合治疗心下型完全性肺静脉异位引流(total anomalous pulmonary venous connection,TAPVC)的疗效.方法 2012年3月至2015年4月,采用左心房内路径吻合法治疗心下型TAPVC 14例.男9例,女5例.年龄8～42 d,平均(28.9±6.73)d;体重2.8～5.4kg,平均(3.9±1.43)kg.所有患儿均在全身麻醉、中低温体外循环下手术.充分游离左、右肺静脉、共汇静脉、垂直静脉后,在心脏自然状态下观察共汇静脉-垂直静脉与心脏位置关系,对共汇静脉-垂直静脉走形位于左房或房间隔后位的14例患儿,采用左心房内径路将肺静脉共汇-垂直静脉与左心房后壁吻合.结果 所有患儿均顺利完成手术,体外循环时间89～141 min,平均(118.7±22.14)min;主动脉阻断时间46～67 min,平均(52.1±6.54)min.术后呼吸机辅助时间3～7 d,平均(4.19±1.04)d.术后早期(46 h)1例患儿因消化道出血死亡,其余13例患儿中,低心排出量综合征8例、室上性心动过速2例、气胸2例、肺部感染7例、经积极治疗后均痊愈出院.13例患儿出院后1个月、3个月、1年随访率均为100％.结论 对共汇静脉-垂直静脉走行位于左房或房间隔后的心下型TAPVC,采用左心房内路径吻合法治疗能够取得满意的临床疗效.     

Unusual form of total anomalous pulmonary venous connection with double drainage

A patient with complex congenital heart disease was diagnosed by two-dimensional echocardiography. Total anomalous pulmonary venous connection (TAPVC) was suspected because of the results of two-dimensional echocardiography, but the exact anatomy was delineated by cineangiocardiography as an unusual form of TAPVC with double drainage or connections to the left superior vena cava at nearly the same level. The clinical implications and possible embryogenesis for such a condition are discussed.     

Obstructed total anomalous pulmonary venous connection

Summary With the advent of echocardiography, total anomalous pulmonary venous connection (TAPVC) can be readily diagnosed without much difficulty. However, noninvasive detection of the presence of pulmonary venous obstruction in TAPVC remains a difficult issue. During a 5.5-year period, 42 patients were found to have TAPVC by catheterization, surgery, and/or autopsy: 17 had supracardiac drainage, 13 paracardiac drainage, nine infracardiac drain-age, and three mixed drainage. Obstruction to pulmonary venous drainage was found in 24 patients (57%). Patients with right isomerism tended to have a higher incidence of pulmonary venous obstruction than those with the usual atrial arrangement (80% vs. 44%,p<0.05). Color Doppler combined with cross-sectional echocardiography provided accurate delineation of drainage sites in 93% cases (39 of 42). Among the 39 cases with correct echocardiographic delineation of the drainage site, obstruction was detected by echocardiography in 22 cases with a sensitivity of 100% (22 of 22) and a specificity of 85% (17 of 20). Therefore, complete echocardiography, including cross-sectional images and color Doppler proved to be a reliable tool in the detection of drainage sites and pulmonary venous obstruction in TAPVC.     

心内型完全性肺静脉异位引流的解剖特征及手术矫治

目的 分析心内型完全性肺静脉异位引流(TAPVC)的解剖特征及手术矫治对策.方法 1981年4月～2006年12月手术治疗心内型TAPVC 25例(男17例,女8例),年龄26 d～14岁,平均(2.56±3.56)岁;体重3.3～21.0 kg,平均(6.85±10.06)kg.依据Darling分型,分为ⅡA及ⅡB两个亚型.所有患儿行超声心动图及心导管检查确诊,均在全麻低温体外循环下行矫治术.结果 所有患儿治愈出院.主要并发症为低心排出量综合征、肺水肿2例.随访3个月～26年,心功能均达到Ⅰ级,无肺静脉回流梗阻发生.结论 心内型TAPVC确诊后宜尽早手术,成功的关键在于术前、术中对其解剖特征准确判定及合适的心房分隔.     

Cor triatriatum associated with partial anomalous pulmonary venous connection to the coronary sinus: Echocardiographic and angiocardiographic features

Summary An infant girl is described who had cor triatriatum and partial anomalous pulmonary venous connection of the left pulmonary veins to the coronary sinus, the first report of this combination of lesions. The infant also had a Dandy-Walker malformation and multiple facial and intrathoracic hemangiomas. The cardiac diagnosis was made by two-dimensional echocardiography. Cardiac catheterization and angiography confirmed the findings and also demonstrated a persistent left superior vena cava draining to the coronary sinus. The infant underwent successful surgical repair. Partial anomalous pulmonary venous connection and left superior vena cava not infrequently are associated with cor triatriatum. Although two-dimensional echocardiography is sensitive for the detection of cor triatriatum, preoperative cardiac catheterization is necessary to identify unequivocally systemic and pulmonary venous connections.     

影响完全性肺静脉异位引流术病死率的危险因素

目的 分析完全性肺静脉异位引流(TAPVC)纠治术的手术结果,探讨影响其病死率的危险因素.方法 对比分析郑州大学第三附属医院河南省小儿先心病诊疗中心2001年9月至2011年9月收集的TAPVC患儿临床资料.其中男37例,女20例;年龄15 d～6.5岁[(4.27±8.63)个月];体质量4.0 ～21.0(6.33 ±2.70) kg.收集患儿住院病历、超声心动图和手术记录等资料.应用x2检验和Logistic多变量回归分析对患者的手术年龄、体质量、TAPVC分型、术前急症、主动脉钳夹时间、手术时间、体外循环时间及术后呼吸机辅助时间、监护时间、住院时间等因素进行分析,分析影响病死率的危险因素.结果 57例TAPVC患儿纠治术中,围手术期死亡7例(12.2％).单变量分析结果表明,与TAPVC纠治术病死率相关的因素有体质量(P =0.035)、TAPVC分型(P=0.037)、术前急症(P=0.021)、主动脉钳夹时间(P =0.046).Logistic多变量回归分析结果表明,术前急症是影响TAPVC纠治术病死率的独立危险因素(P =0.003).结论 TAPVC患儿术前急症会增加患儿术后的病死率.     

Total anomalous pulmonary venous connection— radiological features

Seventeen cases of total anomalous pulmonary venous connection (TAPVC) were studied radiologically in the last five years. The diagnosis was confirmed by cineangiography in 16 cases and at necropsy in one patient who was found to have infradiaphragmatic variety of TAPVC. Eleven of the 16 cases were found to have supracardiac TAPVC through the left ascending vein. In five cases the anomalous veins connected to the right atrium. Four of these five cases with right atrial connection drained through the coronary sinus and in the fifth case the anomalous veins entered the right atrium directly. Postero-antevior thoracic roentgenogram identified supracardiac anomalous connection in each of the eleven cases. The thoracic roentgenogram was nonspecific in the five cases of the cardiac type of TAPVC. Levophase of the pulmonary angiogram was useful not only in the identification of TAPVC but also indicated whether all or only some of the veins are connected anomalously. Biplane angiogram was found to be useful in cardiac type of TAPVC.     

心上径路治疗新生儿和小婴儿完全性心上型肺静脉异位引流

目的 探讨心上径路治疗新生儿和小婴儿完全性心上型肺静脉异位引流(total anomalous pulmonary venous connection,TAPVC)的临床效果.方法 2006年6月至2009年6月,采用心上径路矫治新生儿和小婴儿心上型TAPVC 26例,其中男17例,女9例.年龄18 d～8个月,平均(4.2±2.8)个月.体重3.4～8.1 kg,平均(5.8±2.1)kg.全部患儿经心上径路完成矫治手术.总转流时间49～98 min,平均(68.7±15.3)min;主动脉阻断时间31～77 min,平均(47.6±14.7)min.结果 术后早期无死亡;交界区心律或心律紊乱5例(19.1%);中期随访23例,时间5个月～3年,平均18个月,无死亡.心功能Ⅰ级21例,Ⅱ级2例,全部为窦性心律;复查超声心动图示吻合口通畅22例,轻度狭窄1例.结论 采用心上径路治疗新生儿和小婴儿完全性心上型肺静脉异位引流临床效果满意.

Abstract：

Objective To evaluate the short term outcome of surgical treatment of supracardiac total anomalous pulmonary venous connection (TAPVC) via superior approach in neonates and infants. Methods From June 2006 to June 2009, 26 patients with supracardiac TAPVC underwent surgical repair through superior approach. There were 17 males and 9 females. Their ages ranged from 18 days to 8 months old (mean, 4. 2 ± 2. 8 years). The weight ranged from 3.4 to 8. 1 kg (mean, 5. 8 ± 2. 1 kg). Before surgery, all patients had apnea and cyanosis at resting state, and their resting SpO2 ranged from 65% to 85%. The heart/chest ratio calculated on X-ray film was from 0. 62 to 0. 77. Electrocardiograph (ECG) of the patients showed sinus rhythm, right atrium enlargement and right ventricle hypertrophy. Echocardiography revealed moderate to severe pulmonary hypertension and various degree of tricuspid reflux Under general anesthesia and cardiopulmonary bypass, direct anastomosis between the top of the left atrium and the common pulmonary venous trunk were performed via superior approach. Results The cardiopulmonary bypass time was 68. 7 ± 15. 3 min and the aortic cross-clamping time was 47. 6 ± 14. 7 min. The patients were followed up for 5 months to 3 years (mean, 18 months). No death after surgery was noted. Five patients had atrial arrhythmia (19. 1%)in the early postoperative stage. One patient had mild anastomotic stenosis, Two neonates had delayed sternum closure. Two patients had diaphragm paralysis, one of which underwent diaphragm placation.All of the patients except 2 had satisfactory cardiac function. Conclusions Correction of supracardiac total anomalous pulmonary venous connection via superior approach is safe and effective in neonates and infants.     

完全性肺静脉异位引流病理谱及个体化手术治疗

Objective To delineate the morphological spectrum of total anomalous pulmonary venous connection (TAPVC) by building the "road map" and the " variation chart" of pulmonary veins,and to advance individualized surgical treatment Methods Between April,2006 to June,2009, 139 consecutive patients with TAPVC underwent operations. There were 61 supracardiac,55 intracardiac,6 infracardiac and 17 mixed types. Pathological diagnosis was made by echocardiogram,magnetic resonance imaging, computerized tomography,or the cardiac catheterization and operative findings during operation. The option of procedure was determined by findings. Results (1) Pathological spectrum:①" the road map"of the pulmonary veins: the patients with supracardiac type were divided into 4 subtypes according to the course of vertical veins:left course (47 cases),right course (9 cases),posterior course(2 cases) and double courses (3 cases). The patients with intracardiac type were divided into 3 subtypes according to the draining site of pulmonary veins: to coronary sinus (49 cases) ,to right atrium (5 cases) or to coronary sinus and right atrium (1 case),and the openings of pulmonary veins may be 4,2 or 1 in each subtype. The patients with infracardiac type were divided into 4 subtypes according to the draining site of vertical vein:to portal vein (1 case),to hepatic vein(3 cases),to portal vein and hepatic vein (1 case) and to inferior vena cava (1 cases). The patients with mixed type were divided into 3 subtypes: bilateral and symmetrical connections "2 + 2" pulmonary venous drainage pattern; bilateral and asymmetrical connections"3 +1" pulmonary venous drainage pattern and bizarre anatomic variants. ② The morphological "variation chart" of pulmonary veins individual pulmonary vein stenosis or excessive tributary veins (11 cases) showed: hypoplastic confluence veins (4 cases) and vertical veins distortion or elongation or forming hemodynamic vise or common pulmonary vein that drained to coronary sinus or right atrium through a narrowed short vertical vein or a small window(9cases).(2)Surgical results：early death was encountered in 6 cases(4.3％).The causes included 10W cardiac output syndrome in 1 case,and pulmonary veins stenosis and associated complications in the other 5 patients.Six patients with pulmonary restenosis underwent reoperation.All survived.Two patients had mild residual obstruction during Intermediate-term follow-up.Conclusions The patients with TAPVC had a wide spectrum of pulmonary veins with high inter-individual variation.It was useful to delineate the anatomy of pulmonary veins and to plan personalized procedures during operations according to the"road map"and"variation chart"of pulmonary veins.     

Functional total anomalous pulmonary venous connection via levoatriocardinal vein

We report a fetal case of double outlet right ventricle, mitral atresia, and intact atrial septum. Although the pulmonary veins were connected to the left atrium, pulmonary venous blood drained into the right superior vena cava via the stenotic levoatriocardinal vein (LACV), which resulted in a circulation resembling total anomalous pulmonary venous connection (TAPVC) with pulmonary venous obstruction. Since the pulmonary veins were connected to both the stenotic LACV and the “dead‐end” left atrium, the pulmonary venous flow had a to‐and‐fro pattern along with atrial relaxation and contraction. Postnatal echocardiography and computed tomography confirmed the diagnosis of normally connected but anomalously draining pulmonary veins via the LACV. Surgical creation of an atrial septal defect on the day of birth successfully relieved pulmonary venous obstruction. Normally connected but anomalously draining pulmonary veins via the LACV should be considered for TAPVC differential diagnosis in fetuses with a left‐side heart obstruction.     

Cardiac arrhythmias after surgical correction of total anomalous pulmonary venous connection: Late follow-up

Summary Sixteen patients (10 males and six females) aged 7 months to 20 years, who had undergone surgical repair in the first year of life for total anomalous pulmonary venous connection (TAPVC), underwent assessment of cardiac rhythm by 24-h electrocardiogram (ECG) monitoring, nine of them also had maximal exercise treadmill tests, 3 months to 19.5 years after surgical repair. No patient had symptoms of an arrhythmia and the resting ECG was normal in all except one who had occasional single supraventricular ectopic beats. But on 24-h ECG monitoring significant arrhythmias were recorded in six of the 16 patients, including supraventricular tachycardia (three patients), bradyarrhythmia (two patients), sick sinus syndrome (two patients), and multiform supraventricular and ventricular ectopic beats (two patients). Five of these six patients were assessed more than 6 years after surgery. An inappropriate chronotropic response was seen on maximal exercise treadmill testing in four patients; three of them had arrhythmias previously recorded by 24-h ECG monitoring.Our observations show that significant arrhythmias may occur in asymptomatic patients long after TAPVC correction, and we therefore recommend long-term follow-up of these patients, even if they are asymptomatic.     

Fate of the unligated vertical vein after repair of supracardiac anomalous pulmonary venous connection

OBJECTIVE: To determine the fate of the unligated vertical vein after repair of isolated supracardiac total anomalous pulmonary venous connection (TAPVC). METHODS: We reviewed the outcome of 28 patients who were diagnosed to have isolated supracardiac TAPVC and determined the fate of the unligated vertical vein. RESULTS: Of the 28 patients, four died before surgery. The remaining 24 patients underwent surgical correction of TAPVC with (n = 5) or without (n = 19) ligation of vertical vein at a median age of 20 days (range: 1-574 days). There were no significant differences in age, weight, presence of pulmonary venous obstruction, need for preoperative inotropic and ventilatory support, cardiopulmonary bypass duration, postoperative pulmonary hypertensive crisis and requirement of peritoneal dialysis between patients with and those without vertical vein ligation. The in-hospital surgical mortality was 50% (12/24), with 83% (10/12) of deaths occurring before 1990. Patients who died after surgery were significantly younger (median age: 5.5 days vs 37 days, P = 0.005), lighter (3.3 +/- 0.5 kg vs 3.9 +/- 0.6 kg, P = 0.016), more likely to have pulmonary venous obstruction preoperatively (75% vs 12%, P = 0.039) and have undergone surgery before 1990 (83% vs 33%, P = 0.036). The 12 survivors were followed up for a median of 4.7 years (range: 2.3-18.1 years), 10 of whom had their vertical vein unligated. The vertical vein remained patent in five (50%) patients, while stenosis of pulmonary venous anastomosis was only present in one patient. Of these five patients, three had subsequently undergone surgical ligation of the vertical vein to eliminate a large left-to-right shunt. CONCLUSIONS: Patency of the unligated vertical vein is common after the repair of supracardiac TAPVC, even in the absence of pulmonary venous obstruction. The degree of left-to-right shunt through the patent vertical vein may be so significant as to warrant surgical ligation.     

完全性肺静脉异位引流病理谱及个体化手术治疗

目的 描绘完全性肺静脉异位引流(TAPVC)患儿肺静脉走行"路线图"和形态"变异图",阐明肺静脉病理谱的变化规律,促进有效个体化手术.方法 2006年4月至2009年9月,139例TAPVC患儿进行手术,心上型61例,心内型55例,心下型6例和混合型17例.病理诊断依据超声心动图、核磁共振、计算机断层扫描或心导管和心血管造影检查以及术中解剖,根据患儿TAPVC类型和解剖特点选择个体化手术方法.结果 1.病理谱:①肺静脉走行连接"路线图":心上型按照垂直静脉(VV)走行方式分为4种,左行(47例)、右行(9例)、后行(2例)和双行(3例);心内型按照肺静脉回流部位分为3种,汇入冠状静脉窦(49例)、汇入右心房(5例)和同时汇人CS和右心房(1例),再依据肺静脉开口数目分为4个开口、2个开口和1个开口三种亚型;心下型按照VV汇入体静脉方式分为4种:汇入门静脉(1例)、肝静脉(3例)、同时汇入门静脉和肝静脉(1例)以及汇入下腔静脉(1例);混合型按照肺静脉回流双侧是否对称分为双侧对称连接的"2+2"型(5例)、双侧不对称连接的"3+1"型(10例)和"怪异型"(2例).②肺静脉形态"变异图":肺静脉入口狭窄、发育不良或多分支(11例)、共汇肺静脉发育不良或伴内膜增生(4例)、VV扭曲、短小和狭窄(9例).2.手术结果:本组早期死亡6例(4.3%),其中低心排1例,肺静脉梗阻5例.中期随访因肺静脉梗阻再手术6例,术后轻微梗阻2例.结论 TAPVC患儿肺静脉病理谱广,个体差异大;按照肺静脉走行"路线图"和形态"变异图"有利术中肺静脉解剖的探查和个体化手术设计.

Abstract：

Objective To delineate the morphological spectrum of total anomalous pulmonary venous connection (TAPVC) by building the "road map" and the " variation chart" of pulmonary veins,and to advance individualized surgical treatment Methods Between April,2006 to June,2009, 139 consecutive patients with TAPVC underwent operations. There were 61 supracardiac,55 intracardiac,6 infracardiac and 17 mixed types. Pathological diagnosis was made by echocardiogram,magnetic resonance imaging, computerized tomography,or the cardiac catheterization and operative findings during operation. The option of procedure was determined by findings. Results (1) Pathological spectrum:①" the road map"of the pulmonary veins: the patients with supracardiac type were divided into 4 subtypes according to the course of vertical veins:left course (47 cases),right course (9 cases),posterior course(2 cases) and double courses (3 cases). The patients with intracardiac type were divided into 3 subtypes according to the draining site of pulmonary veins: to coronary sinus (49 cases) ,to right atrium (5 cases) or to coronary sinus and right atrium (1 case),and the openings of pulmonary veins may be 4,2 or 1 in each subtype. The patients with infracardiac type were divided into 4 subtypes according to the draining site of vertical vein:to portal vein (1 case),to hepatic vein(3 cases),to portal vein and hepatic vein (1 case) and to inferior vena cava (1 cases). The patients with mixed type were divided into 3 subtypes: bilateral and symmetrical connections "2 + 2" pulmonary venous drainage pattern; bilateral and asymmetrical connections"3 +1" pulmonary venous drainage pattern and bizarre anatomic variants. ② The morphological "variation chart" of pulmonary veins individual pulmonary vein stenosis or excessive tributary veins (11 cases) showed: hypoplastic confluence veins (4 cases) and vertical veins distortion or elongation or forming hemodynamic vise or common pulmonary vein that drained to coronary sinus or right atrium through a narrowed short vertical vein or a small window(9cases).(2)Surgical results：early death was encountered in 6 cases(4.3％).The causes included 10W cardiac output syndrome in 1 case,and pulmonary veins stenosis and associated complications in the other 5 patients.Six patients with pulmonary restenosis underwent reoperation.All survived.Two patients had mild residual obstruction during Intermediate-term follow-up.Conclusions The patients with TAPVC had a wide spectrum of pulmonary veins with high inter-individual variation.It was useful to delineate the anatomy of pulmonary veins and to plan personalized procedures during operations according to the"road map"and"variation chart"of pulmonary veins.     

Supracardiac type total anomalous pulmonary venous connection (TAPVC) with oesophageal varices

Oesophageal varices due to total anomalous pulmonary venous connection (TAPVC) is very rare. Additionally, the infradiaphragmatic type is the most common type of oesophageal varices due to TAPVC. Paraoesophageal varices due to stenosis of the vertical vein of supracardiac TAPVC has not previously been reported. We describe paraoesophageal varices developed as a result of a connection between the left lower pulmonary vein and the umbilicovitelline venous system because of stenosis of the proximal vertical vein in supracardiac type TAPVC in a 3-day-old female newborn who presented with general cyanosis, tachypnoea and dyspnoea.     

单纯性完全型肺静脉异位引流产前8例超声心动图诊断

摘要 目的 探讨胎儿单纯性完全型肺静脉异位引流（TAPVC）的产前超声心动图特点,提高对本病的产前诊断准确率。方法 回顾性分析2011年5月至2014年2月经新生儿超声心动图、手术或尸解证实的8例单纯性TAPVC的胎儿期超声心动图检查结果,总结超声心动图特征。结果 8例单纯性TAPVC胎儿中,心下型2例,心内型1例,心上型5例,5例存在垂直静脉或共同肺静脉腔与垂直静脉连接处梗阻;8例胎儿中,引产1例（心下型）,余7例均于出生后行手术治疗,其中1例术后死亡（心下型）,6例均恢复良好。TAPVC胎儿超声心动图特征为：①正常的左心房形态消失,呈圆形或椭圆形,左心房光滑并多变小,在孕后期较为明显;②降主动脉与左心房间距离明显增大,多数在左心房后方可见一异常的腔隙（即共同肺静脉腔）,可显示左、右侧上升（心上型）或下降（心下型）的垂直静脉;③妊娠早期左、右心系统比值早期多正常,但妊娠中、晚期（孕26周后）可出现右心系统轻度扩大;④引流入冠状静脉窦时（心内型）,冠状静脉窦可有扩张;引流入上腔静脉时（心上型）,上腔静脉扩张;引流入肝内血管时（心下型）,肝内血管可有不同程度的扩张;⑤彩色多普勒可显示引流途径及是否合并垂直静脉梗阻。结论 在孕早期左、右心系统比值正常时,TAPVC易被漏诊及误诊,应注意多角度、多切面扫查,孕晚期超声心动图检查可减少漏诊。