完全型肺静脉异位引流胎儿超声肺静脉频谱特征

目的 探讨胎儿完全型肺静脉异位引流(TAPVC)的肺静脉频谱特征表现.方法 回顾性分析2017年2月至2021年6月经山东省潍坊市妇幼保健院产前超声心动图诊断的TAPVC胎儿的肺静脉频谱表现,总结不同类型TAPVC肺静脉的频谱特征.结果 共诊断19例TAPVC(11例单纯型,8例复合型)胎儿,其中心上型11例,心内型和...     

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.     

“Superimposition” digital subtraction angiography: Evaluation of total anomalous pulmonary venous connection

Summary Total anomalous pulmonary venous connection (TAPVC) has a relatively high surgical mortality, especially the infracardiac variety. A small left atrium may limit postoperative cardiac output. Superimposition of digitally subtracted angiographic (DSA) images may be used to define pulmonary venous anatomy, left atrial size, and its spatial relationship to the common pulmonary vein. The technique for acquiring superimposed digitally subtracted images and the results of two cases with infracardiac TAPVC are presented. We have found that this superimposition technique is easily performed and may provide important preoperative information in infants with TAPVC.     

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.     

An Unusual Variant of Total Anomalous Pulmonary Venous Connection with Varices and Multiple Drainage Sites

Total anomalous pulmonary venous connection (TAPVC) is an uncommon cardiac anomaly that has also rarely been associated with esophageal atresia. We report an unusual case of esophageal atresia with TAPVC with several varices and multiple drainage sites into the superior vena cava and portal vein.     

Portal venous gas: a clinical finding in obstructed infracardiac total anomalous pulmonary venous connection

Total anomalous pulmonary venous connection is a cyanotic congenital heart defect that presents with a multitude of clinical presentations. We report a case of obstructive total anomalous pulmonary venous connection (TAPVC) which presented in a way that has not previously been described. An infant with mixed type obstructive TAPVC was found to have pulmonary interstitial emphysema and portal venous gas on a scout radiograph obtained prior to computed tomography scan. The presence of portal venous gas indicated a connection between the pulmonary venous system and the portal venous system infradiaphragmatically.     

Role of plain radiography and CT angiography in the evaluation of obstructed total anomalous pulmonary venous connection

Background

Obstructed total anomalous pulmonary venous connection (TAPVC) is frequently misdiagnosed as pulmonary disease and without operative correction early death is common. It is important to make a correct diagnosis before surgery.

Objective

The purpose of this study was to describe the chest radiographic features of obstructed TAPVC and compare CT angiography with transthoracic echocardiography in the evaluation of obstructed TAPVC.

Materials and methods

Eighteen children with obstructed TAPVC were assessed. Their clinical and imaging data were retrospectively reviewed. The characteristic radiographic findings were analyzed and compared with surgical results, and the diagnostic accuracy of CT angiography and transthoracic echocardiography was evaluated in terms of pulmonary venous drainage and obstruction detection.

Results

The common radiographic features included pulmonary venous congestion or edema or both (16 of 18 cases, 89%), and absence of cardiomegaly (12 of 18 cases, 67%). CT angiography correctly diagnosed TAPVC and clearly revealed the draining sites in all children (five with supracardiac TAPVC, three with cardiac TAPVC, eight with infracardiac TAPVC and two with mixed TAPVC). The diagnostic agreement between CT angiography and surgery was 100%. Transthoracic echocardiography only correctly revealed the draining sites in 11 children (5 with supracardiac TAPVC, 2 with cardiac TAPVC and 4 with infracardiac TAPVC). The diagnostic agreement between transthoracic echocardiography and surgery was 61%. The diagnostic accuracy of CT angiography was higher than that of transthoracic echocardiography (P?=?0.0156). Thirty-four sites of obstruction were correctly detected by CT angiography (11 in the mediastinum, 1 at the diaphragmatic level, 9 below the diaphragm and 13 stenotic individual pulmonary veins in the lung). The diagnostic agreement between CT angiography and surgery was 92%. Transthoracic echocardiography only correctly detected 15 sites of obstruction (11 in the mediastinum, 1 at the diaphragmatic level and 3 below the diaphragm). The diagnostic agreement between transthoracic echocardiography and surgery was 41%. The rate of detection for sites of obstruction with transthoracic echocardiography was much lower than that of CT angiography (P?=?0.0002).

Conclusion

In children with obstructed TAPVC, plain radiographs usually show a characteristic pattern of pulmonary venous congestion or edema, or both, and a normal cardiac silhouette. CT angiography is superior to transthoracic echocardiography in the evaluation of pulmonary venous drainage and obstruction, especially in children with infracardiac and mixed TAPVC.     

Supracardiac Total Anomalous Pulmonary Venous Connection with A Descending Vertical Vein

The commonly used Darling classification for total anomalous pulmonary venous connection (TAPVC) consists of supracardiac, cardiac, infracardiac, and mixed types (Craig et al., Lab Invest 6:44–64, 1967). In supracardiac TAPVC, the common pulmonary vein drains superiorly into the left innominate vein, the superior vena cava, or the azygos vein by way of an ascending vertical vein. We describe a case of supracardiac TAPVC draining into the azygos vein atypically by way of a descending vertical vein.     

完全性肺静脉异位连接的外科治疗

目的 总结10例完全性肺静脉异位连接的外科治疗经验。方法 全组均在全身麻醉中度低温体外循环下进行手术，6例心上型患儿早期1例经后径法矫治，其他5例中3例经右心房切口径路矫治；另2例采用心上法矫治；4例心内型1例采用自体心包片将冠状静脉窦口经扩大的房间隔缺损隔入左心房，后3例用5-0 Prolene线连续缝合房间隔粗糙边缘后再矫治。结果 无手术死亡，发生心律失常3例，一过性肺水肿2例，均经治疗痊愈。全组随访4个月～5年，心功能正常。结论 提高手术成功率和防止术后并发症的关键为：术中吻合口要足够大，扩大左心房容积及术后及时处理心律失常、肺水肿和低心排血量。心内型矫治时消除房间隔粗糙面可防止术后肺静脉梗阻。     

Total anomalous pulmonary venous connection with ccTGA and VSD: Can pulmonary artery banding avert pulmonary venous obstruction?

We describe a rare case of infracardiac total anomalous pulmonary venous connection (TAPVC), associated with congenitally corrected transposition of the great arteries (ccTGA) and ventricular septal defect, in which the patient had undergone pulmonary artery banding (PAB) at 16 days of age. She began to have episodes of severe cyanosis while crying, 2 weeks after PAB. Cardiac catheterization at 34 days of age showed severe pulmonary hypertension and a transhepatic pressure gradient of 7 mmHg. The infant underwent TAPVC repair and conventional repair for ccTGA at 35 days of age. Although PAB might have the provisional effect of delaying the manifestation of pulmonary venous obstruction (PVO), it is unable to prevent the development of PVO due to the high resistance of the hepatic sinusoids. Signs of PVO should be closely monitored so that TAPVC can be repaired in a timely fashion.     

Asplenia syndrome and isolated total anomalous pulmonary venous connection in siblings

We report on a family with asplenia syndrome in one and total anomalous pulmonary venous connection (TAPVC) in the other sib. Both conditions are rare, may have a genetic cause and belong to a spectrum of laterality disorders. This suggests that both asplenia syndrome and TAPVC in this family are the clinical expression of a single genetic disorder.     

Surgical treatment of total anomalous pulmonary venous connection

Fourteen infants ranging in age from 18 days to 10 months (median age = 4 months) underwent surgical repair of total anomalous pulmonary venous connection (TAPVC) between September, 1988 and December, 1989. The anomalous drainage was supracardiac in nine, cardiac in two, infracardiac in one and mixed in one. One patient had a complex type of TAPVC. There were two hospital deaths, one a critically ill three week old infant with obstructed infracardiac TAPVC and the other with complex TAPVC. There was no late death. All twelve survivors are in NYHA functional Class 1. Postoperative echocardiography revealed unobstructed pulmonary blood flow in all of them. Surgical correction of TAPVC in infancy has been performed with gratifying results. A high index of suspicion, early diagnosis, prompt referral and an aggressive surgical approach are essential for success in this otherwise lethal condition.     

Percutaneous Closure of a Large Unligated Vertical Vein Using the Amplatzer Vascular Plug II After Supracardiac Total Anomalous Pulmonary Venous Connection (TAPVC) Repair

It is well known that the vertical vein (VV) may have to be left open after repair of a total anomalous pulmonary venous connection (TAPVC) in children with preoperative obstruction, whose left heart chambers are small (Cope et al. in Ann Thorac Surg 64:23–29, 3). An unligated VV has been found to reduce pulmonary arterial pressure, decrease perioperative pulmonary hypertensive crisis, and provide better hemodynamics postoperatively (Chowdhry et al. in J Thorac Cardiovasc Surg 133:1286–1294, 2). Although these VVs are expected to close later, they may remain patent in about half of these children (Cheung et al. J Paediatr Child Health 41:361–364, 1).The patent VVs may be a cause for significant left-to-right shunting, and the children may be symptomatic. The case report describes a child who had a large patent VV after repair of supracardiac TAPVC and its closure using the Amplatzer Vascular Plug II device.     

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.     

经心包斜窦行扩大吻合口心上型全肺静脉异位引流矫治术

目的 探讨经心包斜窦入路行心上型全肺静脉异位引流(TAPVC)矫治术,利用垂直静脉延长共同静脉切口,从而扩大共同静脉与左心房的吻合口.方法 2007年12月至2009年1月,我院共收治27例TAPVC患儿在体外循环下行畸形矫治手术,其中男17例,女10例;年龄2 d至13岁;体重2.3～21 kg,平均(5.16±3.49)kg;其中心上型TAPVC 11例,占40.7%;心下型1例,占3.7%;心内型12例,占44.4%;混合型3例,占11.1%.在全部接受手术的11例心上型TAPVC患儿中,10例采用经心包斜窦人路行扩大吻合口的矫治技术,其中7例同时采用无内膜接触缝合技术.此10例患儿中,男7例,女3例;年龄2 d至13岁;体重2.4～21 kg,中位数为6.0 kg.术后行心脏超声随访,随访时间为1～14个月,中位数为7个月,常规随访时间点分别设在出院前、术后3个月、术后半年及术后1年.手术选择心包斜窦入路,沿长轴横向剖开共同静脉,并将此切口上延至垂直静脉的心包返折处,使用7-0 PDS缝线将左心房后壁切口与共同静脉切口或其周边的心包组织吻合.结果 1例患儿因凝血功能障碍于术后第二天死亡;另1例患儿由于家庭原因于术后第五天放弃治疗死亡,其他8例患儿均存活.在8例存活患儿中,1例患儿因术前并发双侧肺实变,另1例患儿因合并重度肺动脉高压,术后机械辅助呼吸超过7 d,其他患儿均无并发症发生.至目前为止,心脏超声随访提示:全部存活患儿肺静脉回流通畅,血流速度介于0.65～1.2 m/s之间.结论 在治疗心上型TAPVC时,选择心包斜窦入路不仅可以获得良好的术野,还可以利用垂直静脉扩大吻合口内径,同时方便采用无内膜接触缝合技术,以预防术后肺静脉梗阻的发生.但本技术路线尚有待大宗病例的远期随访进行验证.     

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.     

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.     

Pulmonary Veins in Total Anomalous Pulmonary Venous Connection with Obstruction: Demonstration Using Silicone Rubber Casts

We studied the postmortem vascular anatomy of four patients with total anomalous pulmonary venous connection (TAPVC) with obstruction using a silicone rubber casting method. Two patients were studied clinically but died before therapeutic intervention, one died after corrective surgery, and another was not diagnosed before death. The morphologic types were supracardiac (2), infracardiac (1), and mixed (1). One of the supracardiac forms had a stenosis at the left vertical vein by a bronchoarterial vise, and a collateral channel to the right superior caval vein was also present. In the other supracardiac case, a left upper pulmonary vein was connected to the left vertical vein above the stenotic portion, resulting in postoperative pulmonary hemorrhage into the left upper lobe. The patient with infracardiac TAPVC had a tree-shaped descending vertical vein and small opening at the inferior caval vein. In the mixed type, a right upper pulmonary vein ran between the pulmonary artery and bronchus draining into the superior caval vein, and the rest of the drainage was to the portal vein.     

混合型完全性肺静脉异位连接17例的诊断与治疗

目的探讨儿童混合型完全性肺静脉异位连接(TAPVC)的诊治要点及影响预后的主要因素。方法近5 a来,在广东省心血管研究所确诊为混合型TAPVC的患儿共17例,收集该17例患儿的临床资料和随访结果,进行回顾性分析。结果 17例混合型TAPVC患儿中心上型+心内型14例,心上型+心下型3例,并肺静脉回流梗阻6例。17例术前全部行超声心动图检查,其中13例行多排螺旋CT扫描,14例行手术治疗。行CT扫描者,10例经手术探查证实此10例患儿CT能够准确显示所有肺静脉回流径路。行超声检查者,12例超声报告了所有4条肺静脉回流径路,5例超声未能报告肺静脉全部回流径路。超声报告所有肺静脉回流径路者,经CT或手术探查,证实其中7例超声显示的所有肺静脉回流径路均准确,4例超声准确显示了3条肺静脉回流径路,1例超声显示的肺静脉回流径路完全错误。并肺静脉回流梗阻的6例患儿,超声心动图发现6例,而CT仅发现1例。14例行手术治疗者,急诊手术6例,择期手术8例。围术期死亡2例,均为急诊手术者。12例康复出院者,随访时间2～53(28.8±17.4)个月,中位随访时间30个月。术后3例发生吻合口狭窄,其中1例术后2个月死于严重吻合口狭窄导致的急性肺水肿。结论混合型TAPVC以心上型+心内型最多见。结合超声心动图和多排螺旋CT扫描是术前评估的最佳策略。对肺静脉回流径路的显示多排螺旋CT优于超声心动图,对肺静脉回流梗阻的显示超声心动图优于多排螺旋CT。急诊手术可能是围术期死亡的危险因素。术后随访主要并发症为吻合口狭窄。     

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。