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      新生兒完全性肺靜脈異位連接外科治療的臨床分析

      2015-01-25 04:59:46孫善權(quán)李虹鄒鵬楊偉建尚寶朋孔娟娟黃景思
      中國循環(huán)雜志 2015年4期
      關(guān)鍵詞:肺靜脈房間隔外科手術(shù)

      孫善權(quán),李虹,鄒鵬,楊偉建,尚寶朋,孔娟娟,黃景思

      新生兒完全性肺靜脈異位連接外科治療的臨床分析

      孫善權(quán),李虹,鄒鵬,楊偉建,尚寶朋,孔娟娟,黃景思

      目的:評(píng)估外科手術(shù)治療新生兒完全性肺靜脈異位連接(TAPVC)的近中期臨床療效。

      方法:2010-11至2014-01,我院確診為TAPVC的新生兒20例(其中男性15例,女性5例)均接受外科手術(shù)治療。平均手術(shù)年齡(10.2±4.8)d,體重(3.2±0.4)kg。所有患兒術(shù)前均行超聲心動(dòng)圖檢查,部分患兒行心臟計(jì)算機(jī)斷層攝影術(shù)(CT)檢查。術(shù)后1個(gè)月、3個(gè)月、6個(gè)月、12個(gè)月及24個(gè)月定為臨床隨訪時(shí)間,復(fù)查以超聲心動(dòng)圖為主,必要時(shí)復(fù)查心電圖及X線胸片,懷疑肺靜脈梗阻者加做心臟CT檢查。

      結(jié)果:全組無手術(shù)早期死亡,晚期死亡1例。平均體外轉(zhuǎn)流時(shí)間(83.7±25.5)min,平均主動(dòng)脈阻斷時(shí)間(41.0±19.4)min。術(shù)后中位機(jī)械通氣時(shí)間4 d(范圍2~128 d),中位正性肌力藥物支持時(shí)間3 d(范圍2~128 d),中位住院時(shí)間21 d(范圍13~128 d)。19例存活者中平均隨訪(19.5±11.8)個(gè)月,其中2例術(shù)前有雙側(cè)肺靜脈發(fā)育不良仍伴重度肺動(dòng)脈高壓、心臟功能III級(jí),其余17例恢復(fù)良好,心臟功能I~I(xiàn)I級(jí)。

      結(jié)論:外科手術(shù)治療新生兒TAPVC近中期療效滿意,伴雙側(cè)肺靜脈發(fā)育不良者預(yù)后不佳。

      完全性肺靜脈異位連接;外科治療;新生兒

      Methods: A total of 20 neonates with TAPVC who received surgical correction in our hospital from 2010-11 to 2014-01 were respectively studied. There were 15 male and 5 female neonates with the average age of (10.2 ± 4.8) days and body weight of (3.2 ± 0.4) kg. All patients received pre-operative echocardiography and some of them received CT examination. The followed-up study was conducted at 1, 3, 6, 12 and 24 months after the operation respectively, the patients were mainly examined by echocardiography, ECG and chest X-ray were used as necessary, the cardiac CT would be performed if the patient with suspected pulmonary venous obstruction.

      Results: There was no early post-operative death, 1 patient died at late post-operation. The average cardiopulmonary bypass time was (83.7 ± 25.5) minutes and the average aortic cross clamp time was (41.0 ± 19.4) minutes. The median duration of post-operative ventilation time was 4 days with the range from 2 to 128 days, the median inotropic medication supporting time was 3 days with the range from 2 to 128 days, and the median hospitalization time was 21 days with the range from 13 to 128 days. The mean follow-up time for 19 survivors was at (19.5 ± 11.8) months, and 2 of them were with pre-operative bilateral pulmonary vein hypoplasia combining severe pulmonary hypertension and NYHA III; the rest 17 patients recovered well and they had NYHA I to NYHA II.

      Conclusion: The short- and mid-term outcomes were good for surgical correction of TAPVC in neonates, the patients with bilateral pulmonary vein hypoplasia had poor prognosis

      (Chinese Circulation Journal, 2015,30:371.)

      完全性肺靜脈異位連接(total anomalous pulmonary venous connection, TAPVC)約占先天性心臟病2%,如未及時(shí)治療,大部分在3個(gè)月內(nèi)死亡,如伴發(fā)嚴(yán)重肺靜脈回流梗阻,多于出生后數(shù)日內(nèi)死亡[1,2]。由于肺靜脈連接部位的多樣性,外科手術(shù)的方法以及結(jié)果不盡相同[3-6]。本文報(bào)道我們單一心臟中心對(duì)20例新生兒TAPVC實(shí)施外科手術(shù)的近中期臨床療效。

      1 資料與方法

      一般資料:選擇2010-11至2014-01,我院新生兒期接受外科手術(shù)治療的TAPVC(排除合并單心室) 的患兒20例(男15例,女5例)。平均手術(shù)年齡(10.2±4.8)d,手術(shù)體重(3.2±0.4)kg。所有患兒術(shù)前均行超聲心動(dòng)圖檢查,16例患兒行心臟計(jì)算機(jī)斷層攝影術(shù)(CT)檢查。20例TAPVC患兒臨床分型:心上型9例,其中2例肺靜脈共匯連接奇靜脈后引流入上腔靜脈;心內(nèi)型6例,其中1例左右肺靜脈直接連接右心房;心下型3例,2例肺靜脈共匯連接降垂直靜脈后引流入門靜脈,1例引流入肝靜脈;混合型2例,均為3+1型,其左下、右上及右下肺靜脈連接肺靜脈共匯經(jīng)降垂直靜脈再引流入肝靜脈,而左上肺靜脈連接垂直靜脈經(jīng)無名靜脈再引流入上腔靜脈。患兒中伴不同程度肺靜脈發(fā)育不良或狹窄4例,伴限制性房間隔交通2例,合并主動(dòng)脈縮窄(CoA)和肌部室間隔缺損(mVSD)各1例。術(shù)前需要機(jī)械通氣9例,因心原性休克或進(jìn)行性低氧血癥而急診手術(shù)8例。

      手術(shù)方法:所有患兒均在中度低溫持續(xù)心肺轉(zhuǎn)流下實(shí)施手術(shù)。正中開胸,體外循環(huán)開始前常規(guī)游離并結(jié)扎動(dòng)脈導(dǎo)管或韌帶。心上型TAPVC矯治時(shí),經(jīng)橫竇切開左心房后壁至左心耳基底部,平行于左心房切口縱行切開肺靜脈共匯,連續(xù)側(cè)側(cè)吻合左心房與肺靜脈共匯,補(bǔ)片修補(bǔ)或直接縫合房間隔缺損(ASD),結(jié)扎垂直靜脈或奇靜脈。心內(nèi)型TAPVC矯治時(shí),肺靜脈共匯連接冠狀靜脈竇者,先切除冠狀靜脈竇與卵圓窩之間的間隔組織,延伸至冠狀靜脈竇頂部,再用自體心包補(bǔ)片連續(xù)縫合重建房間隔;若肺靜脈共匯連接右心房者,先擴(kuò)大房間隔缺損,再用自體心包補(bǔ)片將肺靜脈隔入左心房。心下型TAPVC矯治時(shí),縱行切開左心房后壁至左心耳基底部,平行于左心房切口縱行切開肺靜脈共匯,連續(xù)側(cè)側(cè)吻合左心房與肺靜脈共干,如降垂直靜脈匯入門靜脈,則予以保留,若垂直靜脈匯入肝靜脈或下腔靜脈,則在橫隔水平予以結(jié)扎;保留卵圓孔或縫合房間隔缺損開窗3 mm。混合型TAPVC矯治時(shí),先按上述方法將肺靜脈共匯與左心房吻合,再將單支的肺靜脈直接吻合至左心房。

      術(shù)后處理:血流動(dòng)力學(xué)不穩(wěn)定患兒延遲關(guān)胸;術(shù)后繼續(xù)機(jī)械通氣輔助呼吸功能;靜脈給予以腎上腺素、多巴胺及米利農(nóng)等正性肌力藥物支持心臟功能。

      隨訪:術(shù)后1個(gè)月、3個(gè)月、6個(gè)月、12個(gè)月及24個(gè)月定為臨床隨訪時(shí)間,復(fù)查以超聲心動(dòng)圖為主,必要時(shí)復(fù)查心電圖及X線胸片,懷疑肺靜脈梗阻者加做心臟CT檢查。

      統(tǒng)計(jì)學(xué)處理方法:運(yùn)用社會(huì)科學(xué)統(tǒng)計(jì)軟件包(SPSS19.0)進(jìn)行數(shù)據(jù)分析。正態(tài)分布的連續(xù)變量以均數(shù)±標(biāo)準(zhǔn)差表示,偏態(tài)分布的變量以中位數(shù)和范圍表示,分類變量以數(shù)字或者百分比形式表示。

      2 結(jié)果

      手術(shù)總體情況:20例患兒全部手術(shù)成功且無早期死亡。晚期死亡1例,該患兒術(shù)前漏診主動(dòng)脈縮窄二期手術(shù)矯治后反復(fù)肺部感染,術(shù)后4個(gè)月死于呼吸衰竭。平均體外轉(zhuǎn)流時(shí)間(83.7±25.5) min,平均主動(dòng)脈阻斷時(shí)間(41.0±19.4) min;延遲關(guān)胸6例。術(shù)后機(jī)械通氣時(shí)間中位數(shù)4 d(范圍2~128 d),正性肌力藥物支持時(shí)間中位數(shù)3 d(范圍2~128 d),住院時(shí)間中位數(shù)21 d(范圍13~128 d)。

      隨訪結(jié)果:19例患兒平均隨訪時(shí)間(19.5±11.8)個(gè)月。2例因術(shù)前有雙側(cè)肺靜脈發(fā)育不良仍伴重度肺動(dòng)脈高壓、心臟功能III級(jí),其余17例(17/19)恢復(fù)良好,心臟功能I~I(xiàn)I級(jí),其中2例術(shù)前單側(cè)或一支肺靜脈發(fā)育不良患兒,超聲心動(dòng)圖提示一側(cè)肺靜脈吻合口血流稍增快。

      3 討論

      文獻(xiàn)報(bào)道,TAPVC外科手術(shù)的死亡率為6.7%~15.38%,影響因素包括年齡小于2個(gè)月、急診手術(shù)、體外循環(huán)時(shí)間過長、復(fù)合心臟畸形、術(shù)后肺動(dòng)脈高壓及肺靜脈梗阻等[7-11]。另有連續(xù)4年31例嬰兒TAPVC無手術(shù)死亡的記錄,其獨(dú)立危險(xiǎn)因素主要是肺靜脈發(fā)育不良或狹窄[2]。本組20例新

      生兒TAPVC,多于出生后數(shù)日內(nèi)確診,平均手術(shù)年齡10.2 d,無手術(shù)早期死亡。我們的經(jīng)驗(yàn)是,如不伴有肺靜脈回流梗阻或限制性房間隔交通,可于圍術(shù)期嚴(yán)密監(jiān)護(hù),避免低氧血癥、酸中毒和心力衰竭的發(fā)生,監(jiān)護(hù)至出生后7~10 d手術(shù),從而提高手術(shù)成功率,只有部分患兒病情危重需急診手術(shù)。本組晚期死亡1例,該患兒術(shù)前漏診主動(dòng)脈縮窄造成難以控制的肺部感染和呼吸衰竭。盡管超聲心動(dòng)圖對(duì)TAPVC可作出明確診斷,但在判斷心外大血管或肺靜脈的發(fā)育仍存在局限性,我們建議,如果患兒條件允許,應(yīng)加做心臟CT或磁共振成像(MRI)檢查,有助于檢出伴發(fā)的心血管畸形,制定有效的手術(shù)方案及準(zhǔn)確評(píng)估疾病的預(yù)后。

      手術(shù)早期的并發(fā)癥主要是肺動(dòng)脈高壓危象。有學(xué)者認(rèn)為采用可調(diào)節(jié)的結(jié)扎方法保留垂直靜脈,有助于緩解術(shù)后肺動(dòng)脈高壓危象的右心室壓力,特別是伴肺靜脈梗阻者,若術(shù)后出現(xiàn)中度以上肺動(dòng)脈高壓,則不宜結(jié)扎垂直靜脈[12]。本組患兒心上型的垂直靜脈及心下型引流入肝靜脈的降垂直靜脈,均予以結(jié)扎,手術(shù)后均未出現(xiàn)藥物不可控制的肺高壓危象,我們的體會(huì)是,保留卵圓孔或房間隔留孔,加之使用血管擴(kuò)張藥物可緩解術(shù)后肺動(dòng)脈高壓危象,垂直靜脈不需常規(guī)保留。低心排出量綜合征亦是術(shù)后早期較為常見的并發(fā)癥,本組患兒術(shù)前左心室容量均明顯減少,術(shù)后常規(guī)使用腎上腺素作為正性肌力支持均可有效預(yù)防低心排出量綜合征的發(fā)生。

      術(shù)后肺靜脈梗阻,Hyde等[13]認(rèn)為與術(shù)前肺靜脈發(fā)育不良或狹窄以及肺靜脈共匯缺如有關(guān),而血管內(nèi)膜硬化或增厚所致的內(nèi)在梗阻較之局部解剖導(dǎo)致的外在梗阻預(yù)后差。近年來,有學(xué)者將其歸因于葉內(nèi)肺靜脈廣泛纖維化而不是左心房與肺靜脈吻合口的梗阻[2]。球囊擴(kuò)張、血管支架或再手術(shù)等仍是目前治療肺靜脈梗阻的方法[13]?!盁o內(nèi)膜接觸縫合”技術(shù)在本組患兒并無常規(guī)應(yīng)用,僅在個(gè)別肺靜脈共匯發(fā)育較差者采用。本組2例急診手術(shù)患兒,術(shù)中發(fā)現(xiàn)雙側(cè)肺靜脈發(fā)育不良,術(shù)后早期使用血管擴(kuò)張藥物可緩解肺動(dòng)脈高壓危象,但不能使肺動(dòng)脈高壓逆轉(zhuǎn),目前已分別隨訪17個(gè)月及12個(gè)月,超聲心動(dòng)圖提示仍伴重度肺動(dòng)脈高壓,心功能III級(jí),藥物治療效果不佳,由此推測本組2例術(shù)后肺靜脈梗阻與術(shù)前肺靜脈發(fā)育不良有關(guān)。Sinzobahamvya等[3]認(rèn)為術(shù)后1年內(nèi)進(jìn)行性肺靜脈纖維化仍為不可預(yù)測的罕見的死亡原因。關(guān)于TAPVC術(shù)后肺靜脈梗阻的發(fā)生、發(fā)展及轉(zhuǎn)歸,仍需積累更多的病例、尋求更科學(xué)的方法進(jìn)行分析。

      多中心研究顯示,外科手術(shù)后3年及20年的生存率分別是85.2%和83.4%,95%以上心臟功能I~I(xiàn)I級(jí)。遠(yuǎn)期死亡的危險(xiǎn)因素是手術(shù)體重低于2.5 kg及術(shù)后肺動(dòng)脈高壓危象[14]。本組17例(17/19)在平均19.5個(gè)月的隨訪中,無臨床癥狀,活動(dòng)耐力基本正常,心功能I~I(xiàn)I級(jí),療效滿意,遠(yuǎn)期預(yù)后有待進(jìn)一步隨訪。

      綜上所述, TAPVC于新生兒期實(shí)施外科手術(shù),可獲滿意的近中期臨床療效,伴雙側(cè)肺靜脈發(fā)育不良者預(yù)后不佳。

      [1] 楊思源, 陳樹寶. 肺靜脈畸形. 見: 楊思源, 陳樹寶主編. 小兒心臟病學(xué). 第4版. 北京:人民衛(wèi)生出版社, 2012.318-325.

      [2] Geva T, Van Praagh S. Anomalies of the pulmonary veins. In: Allen HD, Driscoll DJ, Shaddy RE, et al. Moss and Adams’Heart Disease in Infants, Children, and Adolescents.7th edition. Philadelphia: Williams & Wilkins,2008.761-792.

      [3] Sinzobahamvya N, Arenz C, Brecher AM, et al. Early and longterm results for correction of total anomalous pulmonary venous drainage (TAPVD) in neonates and infants. Eur J Cardiothorac Surg,1996,10:433-438.

      [4] Serraf A, Belli E, Roux D, et al. Modified superior approach for repair of supracardiac and mixed total anomalous pulmonary venous drainage. Ann Thorac Surg,1998,65:1391-1393.

      [5] Hancock Friesen CL, Zurakowski D, Thiagarajan RR, et al. Total anomalous pulmonary venous connection: an analysis of current management strategies in a single institution. Ann Thorac Surg,2005,79:596-606.

      [6] Honjo O, Atlin CR, HAMILTON bcs, et al. Primary sutureless repair for infants with mixed total anomalous pulmonary venous drainage. Ann Thorac Surg,2010,90:862-868.

      [7] Dharmapuram AK, Kumar RNS, Pantula NR, et al. Repair of total anomalous pulmonary venous connection in early infancy. Asian Cardiovasc Thorac Ann ,2003,11:18-22.

      [8] Yong MS, d' Udekem Y, Robertson T, et al. Outcoms of surgery for simple total anomalous pulmonary venous drainage in neonates. Ann Thorac Surg, 2011,91:1921-1927.

      [9] Chowdhury UK, Airan B, Malhotra A, et al. Mixed total anomalous pulmonary venous connection: Anatomic variations, surgical approach, techniques, and results. J Thorac Cardiovasc Surg, 2008,135:106-116.

      [10] 李曉峰,李仲智,郭志和,等. 新生兒及嬰兒完全型肺靜脈異位引流的外科治療. 中華小兒外科雜志,2004,25:245-247.

      [11] 張惠麗,李守軍,胡盛壽,等. 137例嬰幼兒完全性肺靜脈異位引流各年齡段臨床特點(diǎn)和外科療效分析. 中國循環(huán)雜志,2008,23:381-384.

      [12] Chowdhury UK, Subramaniam KG, Joshi K, et al. Rechanneling of total anomalous pulmonary venous connection with or without vertical vein ligation: results and guidelines for candidate selection. J Thorac Cardiovasc Surg,2007,133:1286-1294.

      [13] Hyde JAJ, Stumper O, Barth MJ, et al. Total anomalous pulmonary venous connection: outcome of sur gical correction and management of recurrent venous obstruction. Eur J Cardiothoracic Surg,1999,15:735-740.

      [14] Seale AN, Uemura H, Webber SA, et al. Total anomalous pulmonary venous connection morphology and outcome from an international population-based study. Circulation, 2010,122:2718-2726.

      Clinical Analysis for Surgical Correction of Total Anomalous Pulmonary Venous Connection in Neonates

      SUN Shan-quan, LI Hong, ZOU Peng, YANG Wei-jian, SHANG Bao-peng, KONG Juan-juan, HUANG Jing-si. The Cardiac Center, Guangdong Women and Children’s Hospital, Guangzhou (511442), Guangdong, China

      Objective: To evaluate the short- and mid-term outcomes for surgical correction of total anomalous pulmonary venous connection (TAPVC) in neonates.

      Total anomalous pulmonary venous connection; Surgical correction; Neonates

      2014-04-17)

      (編輯:梅 平)

      511442 廣東省廣州市,廣東省婦幼保健院 廣東省兒童醫(yī)院 心臟中心

      孫善權(quán) 副主任醫(yī)師 學(xué)士 主要從事心血管病外科治療 Email: brightsun999@163.com

      李虹 Email:rainylh1829@qq.com

      R541

      A

      1000-3614(2015)04-0371-03

      10.3969/j.issn.1000-3614.2015.04.017

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