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Extracardiac conduit fontan operation and right ventricular exclusion procedure for right ventricle failure after repair of partial atrioventricular septal defect.
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PMID:  25207226     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
A 13-year-old girl, who had undergone the total correction of partial atrioventricular septal defect at the age of 4 years, was admitted with severe tricuspid regurgitation in echocardiography. She had received one-and-a-half ventricle repair during follow-up. Her right ventricle showed global akinesia, and the ejection fraction of the left ventricle was 25% with paradoxical interventricular septal motion. We performed right ventricular exclusion adjunct to the Fontan procedure. She is doing well two years after the operation without complications.
Authors:
Chan Kyu Yang; Woo Sung Jang; Eun-Suk Choi; Sungkyu Cho; Kwangho Choi; Jinhae Nam; Woong-Han Kim
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Publication Detail:
Type:  Journal Article     Date:  2014-06-05
Journal Detail:
Title:  The Korean journal of thoracic and cardiovascular surgery     Volume:  47     ISSN:  2233-601X     ISO Abbreviation:  Korean J Thorac Cardiovasc Surg     Publication Date:  2014 Jun 
Date Detail:
Created Date:  2014-09-10     Completed Date:  2014-09-10     Revised Date:  2014-09-12    
Medline Journal Info:
Nlm Unique ID:  101563922     Medline TA:  Korean J Thorac Cardiovasc Surg     Country:  Korea (South)    
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Languages:  eng     Pagination:  275-9     Citation Subset:  -    
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Journal Information
Journal ID (nlm-ta): Korean J Thorac Cardiovasc Surg
Journal ID (iso-abbrev): Korean J Thorac Cardiovasc Surg
ISSN: 2233-601X
ISSN: 2093-6516
Publisher: The Korean Society for Thoracic and Cardiovascular Surgery
Article Information
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Copyright © 2014 by The Korean Society for Thoracic and Cardiovascular Surgery. All rights Reserved.
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Received Day: 15 Month: 7 Year: 2013
Revision Received Day: 02 Month: 11 Year: 2013
Accepted Day: 11 Month: 11 Year: 2013
Print publication date: Month: 6 Year: 2014
Electronic publication date: Day: 5 Month: 6 Year: 2014
Volume: 47 Issue: 3
First Page: 275 Last Page: 279
PubMed Id: 25207226
ID: 4157479
DOI: 10.5090/kjtcs.2014.47.3.275
Publisher Id: kjtcvs-47-275

Extracardiac Conduit Fontan Operation and Right Ventricular Exclusion Procedure for Right Ventricle Failure after Repair of Partial Atrioventricular Septal Defect
Chan Kyu Yang, M.D.1
Woo Sung Jang, M.D.1
Eun-Suk Choi, M.D.1
Sungkyu Cho, M.D.1
Kwangho Choi, M.D.2
Jinhae Nam, M.D.1
Woong-Han Kim, M.D., Ph.D.1
1Department of Thoracic and Cardiovascular Surgery, Seoul National University Children’s Hospital, Seoul National University College of Medicine, Korea
2Department of Thoracic and Cardiovascular Surgery, Pusan National University Hospital, Pusan National University School of Medicine, Korea
Correspondence: Corresponding author: Woong-Han Kim, Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 110-744, Korea, (Tel) 82-2-2072-3637 (Fax) 82-2-3672-3637 (E-mail) woonghan@snu.ac.kr

CASE REPORT

A 13-year-old girl had a history of partial atrioventricular septal defect (pAVSD) total correction at the age of 4 years. She underwent mitral valve repair, atrial septal defect closure with autologous pericardial patch. However, a right ventricular assist device was applied at the operation because of the akinetic right ventricle (RV). Two years later, based on our echocardiography results, the patient was transferred due to severe tricuspid regurgitation and RV chamber enlargement with RV dysfunction. She underwent tricuspid septal commissuroplasty, De Vega-type tricuspid annuloplasty, right atrial reduction plasty, and isthmus ablation. Further, we performed one-and-a-half ventricle repair. In spite of the operation, the patient’s RV function progressively decreased.

She had symptoms of dyspnea on exertion and palpitation during follow-up. Six years after the one-and-a-half ventricle repair, cardiac magnetic resonance imaging was performed to evaluate her cardiac function and measure the left ventricle (LV) volume. The patient’s RV end diastolic volume index and RV ejection fraction were 500.4 mL/m2, and 13.2%, respectively. The LV stroke volume index and ejection fraction were 38.2 mL/m2 and 28%, respectively. Echocardiographic evaluation showed global RV akinesia and LV ejection fraction of 25% with paradoxical interventricular septal motion. We suspected that the RV enlargement affected both the RV and the LV function and it resulted in decreased LV contractility. Thus we decided to exclude the enlarged RV from the systemic circulation.

She underwent extracardiac conduit Fontan operation with polytetrafluoroethylene (PTFE, Gore-Tex; WL Gore & Associates, Flagstaff, AZ, USA) 24-mm tube graft, RV exclusion, atrial septectomy, and permanent pacemaker implantation. RV exclusion procedures include tricuspid valve obliteration (from the RV side; 5-0 Prolene double layer, reinforcement suture from the RA side; 4-0 Polyester PTFE pledget-supported interrupted mattress suture) and pulmonary valve obliteration (6-0 Prolene running suture) to reduce the RV volume with no flow connection, thrombin soaked gel-foam packing to the RV, and RV free-wall wide resection, and it was performed under the condition of cardiac arrest (Fig. 1). Permanent pacemaker bipolar leads were implanted at the LV apex, RV apex, left atrial roof, and RA free wall owing to a history of frequent atrial flutter and junctional rhythm. We did not perform arrhythmia surgery because the patient underwent an electrophysiology study and radiofrequency catheter ablation for supraventricular arrhythmia before the operation. Her palpitation symptom was relieved after radiofrequency catheter ablation. The cardiopulmonary bypass time was 308 minutes, and the aortic cross clamp time was 146 minutes.

We performed the computed tomographic angiography not cardiac magnetic resonance imaging to evaluate the patient’s postoperative cardiac function and chamber size, because she was implanted with a permanent pacemaker. The RV volume was markedly reduced, and the RV was occluded with thrombosis (Fig. 2). The end diastolic volume index of RV was 71.6 mL/m2. Further, the stroke volume index and the ejection fraction of LV were increased to 48.03 mL/m2 and 33%, respectively (Table 1).

The patient’s vital signs were stable with a central venous pressure of 18 to 21 mmHg. She was extubated in 14 hours, and she stayed in the intensive care unit for 90 hours. We removed the chest tubes 5 days later, and she was discharged on postoperative day 21. She has been followed up for 21 months without any complaint of dyspnea and palpitation. Her cardiothoracic ratio in the chest X-ray markedly de creased (Fig. 3), and in the latest echocardiography, the ejection fraction of the LV had increased to 54%.


DISCUSSION

Recently, the importance of RV failure has been noted, in light of the incomplete understanding of the RV failure mechanism and a poorer prognosis than LV failure has. Further, it has been reported that an increased RV volume and decreased ejection fraction are associated with lower survival rates in patients with congestive heart failure [1]. The RV volume overload is one of the causes of right ventricle failure (RVF). Further, it is known that the RV volume over load leads to the leftward displacement of the interventricular septum and changes in the LV geometry, thus resulting in decreased LV contractility [2,3].

Starnes et al. [4] first introduced the RV exclusion procedure in 1991. He performed the RV exclusion in patients with neonatal Ebstein’s anomaly. Williams et al. [5] first suggested the thromboexclusion of the RV in the same year. They filled the RV cavity with coils or absorbable gelatin sponge [6]. Since then, several reports have shown the successful outcome of the original and the modified RV exclusion procedures in the case of Ebstein’s anomaly [7,8]. This case was not one of Ebstein’s anomaly but of pAVSD. She could have lived in a biventricular state if she had undergone the total correction of pAVSD at the appropriate time. However, this case is meaningful in determining how to manage patients with RVF.

We performed an RV exclusion to normalize the motion of the interventricular septum by reducing the RV volume. Further, we demonstrated that both the end diastolic volume index and the stroke volume index increased after the operation. Another beneficial effect of RV exclusion is lung expansion, because an enlarged heart can compress the lungs. In addition, adequate lung expansion helps to reduce pulmonary vascular resistance [2], and decreased pulmonary vascular resistance is a good prognostic factor among functional univentricular patients.

In conclusion, the RV exclusion procedure in selected patients with severe RVF might be a safe and beneficial option to improve LV function.


Notes

This article was presented with the title of ‘extracardiac Fontan operation and right ventricular exclusion procedure in case of severe dilated right ventricle and tricuspid regurgitation’ at the 254th Seoul & Gyeonggi province monthly meeting (2011. 10. 21).

fn2-kjtcvs-47-275CONFLICT OF INTEREST

No potential conflict of interest relevant to this article was reported.

REFERENCES
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3. Takagaki M,Ishino K,Kawada M,et al. Total right ventricular exclusion improves left ventricular function in patients with end-stage congestive right ventricular failureCirculationYear: 2003108Suppl 1II226912970237
4. Starnes VA,Pitlick PT,Bernstein D,Griffin ML,Choy M,Shumway NE. Ebstein’s anomaly appearing in the neonate: a new surgical approachJ Thorac Cardiovasc SurgYear: 1991101108272038202
5. Williams WG,Burrows P,Freedom RM,et al. Thromboexclusion of the right ventricle in children with pulmonary atresia and intact ventricular septumJ Thorac Cardiovasc SurgYear: 199110122291704082
6. Yang JH,Jun TG,Park PW,et al. Exclusion of the non-functioning right ventricle in children with pulmonary atresia and intact ventricular septumEur J Cardiothorac SurgYear: 200833251618164208
7. Cho S,Kim WH,Kwak JG,Park CS. Right ventricular exclusion procedure for right ventricular failure of Ebstein’s anomalyJ Thorac Cardiovasc SurgYear: 20091381246819660307
8. Kawabata T,Kasahara S,Arai S,Sano S. Right ventricular exclusion for a neonatal patient with Ebstein anomaly: a free wall resection of the right ventricleJ Thorac Cardiovasc SurgYear: 20111421582421719034

Article Categories:
  • Case Report

Keywords: 1. Right ventricle exclusion, 2. Congenital heart disease (CHD), 3. CHD, Fontan, 4. Magnetic resonance imaging.

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