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Published in: Journal of Cardiothoracic Surgery 1/2018

Open Access 01-12-2018 | Research article

Pulmonary valve replacement after right ventricular outflow tract reconstruction with homograft vs Contegra®: a case control comparison of mortality and morbidity

Authors: Nicolas Poinot, Jean-Francois Fils, Hélène Demanet, Hugues Dessy, Dominique Biarent, Pierre Wauthy

Published in: Journal of Cardiothoracic Surgery | Issue 1/2018

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Abstract

Background

Repair of congenital heart defects involving the right ventricular outflow tract may require the implantation of a right ventricle to pulmonary artery conduit. This conduit is likely to be replaced during childhood. This study compares the operative outcomes of the replacement procedure of Contegra® and homografts in pulmonary position.

Methods

From 1999 to 2016, 82 children underwent 87 right ventricle to pulmonary artery conduit replacements (60 Contegra® and 27 homografts). Demographics, operative and clinical data were obtained through a retrospective review of the medical records. The two groups were matched for comparison using propensity score matching. All the procedures were performed by the same team of surgeons.

Results

No statistically significant difference was observed between the two groups when considering the operative data for anesthesia, surgery, cardiopulmonary bypass and aortic clamping durations. A peroperative complication rate of 13.47% and 15.36% in Contegra® and homograft replacement groups respectively (p value = 0.758) was observed. There was no difference regarding the blood loss and fluid input. No statistically significant difference was observed between the two groups for the post-operative morbidity. We considered the Pediatric Risk of Mortality (PRISM) score, the day of extubation, the day of withdrawal of inotropic drugs, the length of the intensive care unit stay and the length of hospital stay. The overall mortality is 2.3% but there is no statistically significant difference between the two groups.

Conclusion

Right ventricle to pulmonary artery conduit replacement procedure can be achieved with a low surgical morbidity or mortality, not influenced by the type of conduit that is replaced. Therefore, the choice between homograft or Contegra® for right ventricle to pulmonary artery reconstruction should not be influenced by the future surgical risk during the replacement procedure.

Trial registration

NCT03048071. Registered 9 February 2017 (retrospectively registered).
Literature
1.
go back to reference Ross D, Somerville J. Correction of pulmonary atresia with a homograft aortic valve. Lancet. 1966;2:1446–7.CrossRefPubMed Ross D, Somerville J. Correction of pulmonary atresia with a homograft aortic valve. Lancet. 1966;2:1446–7.CrossRefPubMed
2.
go back to reference Goffin YA, Van Hoeck B, Jashari R, Soots G, Kalmar P. Banking of cryopreserved heart valves in Europe: assessment of a 10-year operation in the European homograft Bank (EHB). J Heart Valve Dis. 2000;9:207–14.PubMed Goffin YA, Van Hoeck B, Jashari R, Soots G, Kalmar P. Banking of cryopreserved heart valves in Europe: assessment of a 10-year operation in the European homograft Bank (EHB). J Heart Valve Dis. 2000;9:207–14.PubMed
3.
go back to reference Tweddell JS, Pelech AN, Frommelt PC, Mussatto KA, Wyman JD, Fedderly RT, et al. Factors affecting longevity of homograft valves used in right ventricular outflow tract reconstruction for congenital heart disease. Circulation. 2000;102 suppl 3:Iii–130. Tweddell JS, Pelech AN, Frommelt PC, Mussatto KA, Wyman JD, Fedderly RT, et al. Factors affecting longevity of homograft valves used in right ventricular outflow tract reconstruction for congenital heart disease. Circulation. 2000;102 suppl 3:Iii–130.
4.
go back to reference ESS T, Gersony WM, Altmann K, Solowiejczyk DE, Bevilacqua LM, Khan C, et al. Pulmonary position cryopreserved homografts: durability in pediatric Ross and non-Ross patients. J Thorac Cardiovasc Surg. 2005;130:282–6.CrossRef ESS T, Gersony WM, Altmann K, Solowiejczyk DE, Bevilacqua LM, Khan C, et al. Pulmonary position cryopreserved homografts: durability in pediatric Ross and non-Ross patients. J Thorac Cardiovasc Surg. 2005;130:282–6.CrossRef
5.
go back to reference Bové T, Demanet H, Wauthy P, Goldstein JP, Dessy H, Viart P, et al. Early results of valved bovine jugular vein conduit versus bicuspid homograft for right ventricular outflow tract reconstruction. Ann Thorac Surg. 2002;74:536–41.CrossRefPubMed Bové T, Demanet H, Wauthy P, Goldstein JP, Dessy H, Viart P, et al. Early results of valved bovine jugular vein conduit versus bicuspid homograft for right ventricular outflow tract reconstruction. Ann Thorac Surg. 2002;74:536–41.CrossRefPubMed
6.
go back to reference Brown JW, Ruzmetov M, Rodefeld MD, Vijay P, Darragh RK. Valved bovine jugular vein conduits for right ventricular outflow tract reconstruction in children: an attractive alternative to pulmonary homograft. Ann Thorac Surg. 2006;82:909–16.CrossRefPubMed Brown JW, Ruzmetov M, Rodefeld MD, Vijay P, Darragh RK. Valved bovine jugular vein conduits for right ventricular outflow tract reconstruction in children: an attractive alternative to pulmonary homograft. Ann Thorac Surg. 2006;82:909–16.CrossRefPubMed
7.
go back to reference Breymann T, Blanz U, Wojtalik MA, Daenen W, Hetzer R, Sarris G, et al. European Contegra multicentre study: 7-year results after 165 valved bovine jugular vein graft implantations. Thorac Cardiovasc Surg. 2009;57:257–69.CrossRefPubMed Breymann T, Blanz U, Wojtalik MA, Daenen W, Hetzer R, Sarris G, et al. European Contegra multicentre study: 7-year results after 165 valved bovine jugular vein graft implantations. Thorac Cardiovasc Surg. 2009;57:257–69.CrossRefPubMed
8.
go back to reference Prior N, Alphonso N, Arnold P, Peart I, Thorburn K, Venugopal P, et al. Bovine jugular vein valved conduit: up to 10 years follow-up. J Thorac Cardiovasc Surg. 2011;141:983–7.CrossRefPubMed Prior N, Alphonso N, Arnold P, Peart I, Thorburn K, Venugopal P, et al. Bovine jugular vein valved conduit: up to 10 years follow-up. J Thorac Cardiovasc Surg. 2011;141:983–7.CrossRefPubMed
9.
go back to reference Sandica E, Boethig D, Blanz U, Goerg R, Haas N, Laser K, et al. Bovine jugular veins versus homografts in the pulmonary position: an analysis across two centers and 711 patients—conventional comparisons and time status graphs as a new approach. Thorac Cardiovasc Surg. 2015;64:025–35.CrossRef Sandica E, Boethig D, Blanz U, Goerg R, Haas N, Laser K, et al. Bovine jugular veins versus homografts in the pulmonary position: an analysis across two centers and 711 patients—conventional comparisons and time status graphs as a new approach. Thorac Cardiovasc Surg. 2015;64:025–35.CrossRef
10.
go back to reference Meyns B, Van Garsse L, Boshoff D, Eyskens B, Mertens L, Gewillig M, et al. The Contegra conduit in the right ventricular outflow tract induces supravalvular stenosis. J Thorac Cardiovasc Surg. 2004;128:834–40.CrossRefPubMed Meyns B, Van Garsse L, Boshoff D, Eyskens B, Mertens L, Gewillig M, et al. The Contegra conduit in the right ventricular outflow tract induces supravalvular stenosis. J Thorac Cardiovasc Surg. 2004;128:834–40.CrossRefPubMed
11.
go back to reference Shebani S, McGuirk S, Baghai M, Stickley J, De Giovanni J, Bu’lock F, et al. Right ventricular outflow tract reconstruction using Contegra valved conduit: natural history and conduit performance under pressure. Eur J Cardiothorac Surg. 2006;29:397–405.CrossRefPubMed Shebani S, McGuirk S, Baghai M, Stickley J, De Giovanni J, Bu’lock F, et al. Right ventricular outflow tract reconstruction using Contegra valved conduit: natural history and conduit performance under pressure. Eur J Cardiothorac Surg. 2006;29:397–405.CrossRefPubMed
12.
go back to reference Göber V, Berdat P, Pavlovic M, Pfammatter J-P, Carrel TP. Adverse mid-term outcome following RVOT reconstruction using the Contegra Valved bovine jugular vein. Ann Thorac Surg. 2005;79:625–31.CrossRefPubMed Göber V, Berdat P, Pavlovic M, Pfammatter J-P, Carrel TP. Adverse mid-term outcome following RVOT reconstruction using the Contegra Valved bovine jugular vein. Ann Thorac Surg. 2005;79:625–31.CrossRefPubMed
13.
go back to reference Bielefeld MR, Bishop DA, Campbell DN, Mitchell MB, Grover FL, Clarke DR. Reoperative homograft right ventricular outflow tract reconstruction. Ann Thorac Surg. 2001;71:482–7. discussion 487-488CrossRefPubMed Bielefeld MR, Bishop DA, Campbell DN, Mitchell MB, Grover FL, Clarke DR. Reoperative homograft right ventricular outflow tract reconstruction. Ann Thorac Surg. 2001;71:482–7. discussion 487-488CrossRefPubMed
15.
go back to reference Mitra R, Reiter JP. A comparison of two methods of estimating propensity scores after multiple imputation. Stat Methods Med Res. 2016;25:188–204.CrossRefPubMed Mitra R, Reiter JP. A comparison of two methods of estimating propensity scores after multiple imputation. Stat Methods Med Res. 2016;25:188–204.CrossRefPubMed
16.
go back to reference Imai K, Ratkovic M. Robust estimation of inverse probability weights for marginal structural models. J Am Stat Assoc. 2015;110:1013–23.CrossRef Imai K, Ratkovic M. Robust estimation of inverse probability weights for marginal structural models. J Am Stat Assoc. 2015;110:1013–23.CrossRef
17.
18.
go back to reference Dearani JA, Danielson GK, Puga FJ, Mair DD, Schleck CD. Late results of the Rastelli operation for transposition of the great arteries. Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu. 2001;4:3–15.CrossRefPubMed Dearani JA, Danielson GK, Puga FJ, Mair DD, Schleck CD. Late results of the Rastelli operation for transposition of the great arteries. Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu. 2001;4:3–15.CrossRefPubMed
19.
go back to reference Kirshbom PM, Myung RJ, Simsic JM, Kramer ZB, Leong T, Kogon BE, et al. One thousand repeat Sternotomies for congenital cardiac surgery: risk factors for reentry injury. Ann Thorac Surg. 2009;88:158–61.CrossRefPubMed Kirshbom PM, Myung RJ, Simsic JM, Kramer ZB, Leong T, Kogon BE, et al. One thousand repeat Sternotomies for congenital cardiac surgery: risk factors for reentry injury. Ann Thorac Surg. 2009;88:158–61.CrossRefPubMed
20.
go back to reference Pollack MM, Holubkov R, Funai T, Dean JM, Berger JT, Wessel DL, et al. The pediatric risk of mortality score: update 2015. Pediatr Crit Care Med J Soc Crit Care Med World Fed Pediatr Intensive Crit Care Soc. 2016;17:2–9. Pollack MM, Holubkov R, Funai T, Dean JM, Berger JT, Wessel DL, et al. The pediatric risk of mortality score: update 2015. Pediatr Crit Care Med J Soc Crit Care Med World Fed Pediatr Intensive Crit Care Soc. 2016;17:2–9.
21.
go back to reference Loukanov T, Sebening C, Springer W, Khalil M, Ulmer HE, Hagl S, et al. Replacement of valved right ventricular to pulmonary artery conduits: an observational study with focus on right ventricular geometry. Clin Res Cardiol. 2008;97:169–75.CrossRefPubMed Loukanov T, Sebening C, Springer W, Khalil M, Ulmer HE, Hagl S, et al. Replacement of valved right ventricular to pulmonary artery conduits: an observational study with focus on right ventricular geometry. Clin Res Cardiol. 2008;97:169–75.CrossRefPubMed
22.
go back to reference Sano S, Karl TR, RBB M. Extracardiac valved conduits in the pulmonary circuit. Ann Thorac Surg. 1991;52:285–90.CrossRefPubMed Sano S, Karl TR, RBB M. Extracardiac valved conduits in the pulmonary circuit. Ann Thorac Surg. 1991;52:285–90.CrossRefPubMed
23.
go back to reference Christenson JT, Sierra J, NEC M, Jolou J, Beghetti M, Kalangos A. Homografts and Xenografts for right ventricular outflow tract reconstruction: long-term results. Ann Thorac Surg. 2010;90:1287–93.CrossRefPubMed Christenson JT, Sierra J, NEC M, Jolou J, Beghetti M, Kalangos A. Homografts and Xenografts for right ventricular outflow tract reconstruction: long-term results. Ann Thorac Surg. 2010;90:1287–93.CrossRefPubMed
24.
go back to reference Wells WJ, Arroyo H, Bremner RM, Wood J, Starnes VA. Homograft conduit failure in infants is not due to somatic outgrowth. J Thorac Cardiovasc Surg. 2002;124:88–96.CrossRefPubMed Wells WJ, Arroyo H, Bremner RM, Wood J, Starnes VA. Homograft conduit failure in infants is not due to somatic outgrowth. J Thorac Cardiovasc Surg. 2002;124:88–96.CrossRefPubMed
25.
go back to reference Brown JW, Ruzmetov M, Rodefeld MD, Vijay P, Turrentine MW. Right ventricular outflow tract reconstruction with an allograft conduit in non-Ross patients: risk factors for allograft dysfunction and failure. Ann Thorac Surg. 2005;80:655–64.CrossRefPubMed Brown JW, Ruzmetov M, Rodefeld MD, Vijay P, Turrentine MW. Right ventricular outflow tract reconstruction with an allograft conduit in non-Ross patients: risk factors for allograft dysfunction and failure. Ann Thorac Surg. 2005;80:655–64.CrossRefPubMed
26.
go back to reference Boethig D, Goerler H, Westhoff-Bleck M, Ono M, Daiber A, Haverich A, et al. Evaluation of 188 consecutive homografts implanted in pulmonary position after 20 years. Eur J Cardio-Thorac Surg Off J Eur Assoc Cardio-Thorac Surg. 2007;32:133–42.CrossRef Boethig D, Goerler H, Westhoff-Bleck M, Ono M, Daiber A, Haverich A, et al. Evaluation of 188 consecutive homografts implanted in pulmonary position after 20 years. Eur J Cardio-Thorac Surg Off J Eur Assoc Cardio-Thorac Surg. 2007;32:133–42.CrossRef
27.
go back to reference Bando K, Danielson GK, Schaff HV, Mair DD, Julsrud PR, Puga FJ. Outcome of pulmonary and aortic homografts for right ventricular outflow tract reconstruction. J Thorac Cardiovasc Surg. 1995;109:509–18.CrossRefPubMed Bando K, Danielson GK, Schaff HV, Mair DD, Julsrud PR, Puga FJ. Outcome of pulmonary and aortic homografts for right ventricular outflow tract reconstruction. J Thorac Cardiovasc Surg. 1995;109:509–18.CrossRefPubMed
28.
go back to reference Rodefeld MD, Ruzmetov M, Turrentine MW, Brown JW. Reoperative right ventricular outflow tract conduit reconstruction: risk analyses at follow up. J Heart Valve Dis. 2008;17:119–26. discussion 126PubMed Rodefeld MD, Ruzmetov M, Turrentine MW, Brown JW. Reoperative right ventricular outflow tract conduit reconstruction: risk analyses at follow up. J Heart Valve Dis. 2008;17:119–26. discussion 126PubMed
29.
go back to reference Niwaya K, Knott-Craig CJ, Lane MM, Chandrasekaren K, Overholt ED, Elkins RC. Cryopreserved homograft valves in the pulmonary position: risk analysis for intermediate-term failure. J Thorac Cardiovasc Surg. 1999;117:141–7.CrossRefPubMed Niwaya K, Knott-Craig CJ, Lane MM, Chandrasekaren K, Overholt ED, Elkins RC. Cryopreserved homograft valves in the pulmonary position: risk analysis for intermediate-term failure. J Thorac Cardiovasc Surg. 1999;117:141–7.CrossRefPubMed
30.
go back to reference Meyns B, Jashari R, Gewillig M, Mertens L, Komárek A, Lesaffre E. Et al. factors influencing the survival of cryopreserved homografts. The second homograft performs as well as the first. Eur J Cardiothorac Surg. 2005;28:211–6.CrossRefPubMed Meyns B, Jashari R, Gewillig M, Mertens L, Komárek A, Lesaffre E. Et al. factors influencing the survival of cryopreserved homografts. The second homograft performs as well as the first. Eur J Cardiothorac Surg. 2005;28:211–6.CrossRefPubMed
31.
go back to reference Kaza AK, Lim H-G, Dibardino DJ, Bautista-Hernandez V, Robinson J, Allan C, et al. Long-term results of right ventricular outflow tract reconstruction in neonatal cardiac surgery: options and outcomes. J Thorac Cardiovasc Surg. 2009;138:911–6.CrossRefPubMed Kaza AK, Lim H-G, Dibardino DJ, Bautista-Hernandez V, Robinson J, Allan C, et al. Long-term results of right ventricular outflow tract reconstruction in neonatal cardiac surgery: options and outcomes. J Thorac Cardiovasc Surg. 2009;138:911–6.CrossRefPubMed
32.
go back to reference Fiore AC, Brown JW, Turrentine MW, Ruzmetov M, Huynh D, Hanley S, et al. A bovine jugular vein conduit: a ten-year bi-institutional experience. Ann Thorac Surg. 2011;92:183–90. discussion 190-192CrossRefPubMed Fiore AC, Brown JW, Turrentine MW, Ruzmetov M, Huynh D, Hanley S, et al. A bovine jugular vein conduit: a ten-year bi-institutional experience. Ann Thorac Surg. 2011;92:183–90. discussion 190-192CrossRefPubMed
33.
go back to reference Hawkins JA, Breinholt JP, Lambert LM, Fuller TC, Profaizer T, McGough EC, et al. Class I and class II anti-hla antibodies after implantation of cryopreserved allograft material in pediatric patients. J Thorac Cardiovasc Surg. 2000;119:324–30.CrossRefPubMed Hawkins JA, Breinholt JP, Lambert LM, Fuller TC, Profaizer T, McGough EC, et al. Class I and class II anti-hla antibodies after implantation of cryopreserved allograft material in pediatric patients. J Thorac Cardiovasc Surg. 2000;119:324–30.CrossRefPubMed
34.
go back to reference Corno AF, Qanadli SD, Sekarski N, Artemisia S, Hurni M, Tozzi P, et al. Bovine Valved Xenograft in pulmonary position: medium-term follow-up with excellent Hemodynamics and freedom from calcification. Ann Thorac Surg. 2004;78:1382–8.CrossRefPubMed Corno AF, Qanadli SD, Sekarski N, Artemisia S, Hurni M, Tozzi P, et al. Bovine Valved Xenograft in pulmonary position: medium-term follow-up with excellent Hemodynamics and freedom from calcification. Ann Thorac Surg. 2004;78:1382–8.CrossRefPubMed
35.
go back to reference Brown JW, Ruzmetov M, Rodefeld MD, Eltayeb O, Yurdakok O, Turrentine MW. Contegra versus pulmonary homografts for right ventricular outflow tract reconstruction: a ten-year single-institution comparison. World J Pediatr Congenit Heart Surg. 2011;2:541–9.CrossRefPubMed Brown JW, Ruzmetov M, Rodefeld MD, Eltayeb O, Yurdakok O, Turrentine MW. Contegra versus pulmonary homografts for right ventricular outflow tract reconstruction: a ten-year single-institution comparison. World J Pediatr Congenit Heart Surg. 2011;2:541–9.CrossRefPubMed
36.
go back to reference Sierra J, Christenson JT, Lahlaidi NH, Beghetti M, Kalangos A. Right ventricular outflow tract reconstruction: what conduit to use? Homograft or Contegra? Ann Thorac Surg. 2007;84:606–11.CrossRefPubMed Sierra J, Christenson JT, Lahlaidi NH, Beghetti M, Kalangos A. Right ventricular outflow tract reconstruction: what conduit to use? Homograft or Contegra? Ann Thorac Surg. 2007;84:606–11.CrossRefPubMed
37.
go back to reference Hickey EJ, BW MC, Blackstone EH, Yeh T, Pigula F, Clarke D, et al. Jugular venous valved conduit (Contegra®) matches allograft performance in infant truncus arteriosus repair. Eur J Cardiothorac Surg. 2008;33:890–8.CrossRefPubMed Hickey EJ, BW MC, Blackstone EH, Yeh T, Pigula F, Clarke D, et al. Jugular venous valved conduit (Contegra®) matches allograft performance in infant truncus arteriosus repair. Eur J Cardiothorac Surg. 2008;33:890–8.CrossRefPubMed
38.
go back to reference Corno AF, Mickaily-Huber ES. Comparative computational fluid dynamic study of two distal Contegra conduit anastomoses. Interact Cardiovasc Thorac Surg. 2008;7:1–5.CrossRefPubMed Corno AF, Mickaily-Huber ES. Comparative computational fluid dynamic study of two distal Contegra conduit anastomoses. Interact Cardiovasc Thorac Surg. 2008;7:1–5.CrossRefPubMed
39.
go back to reference DLS M, Braud BE, Gunter KS, Carberry KE, Arrington KA, Heinle JS, et al. Encouraging results for the Contegra conduit in the problematic right ventricle–to–pulmonary artery connection. J Thorac Cardiovasc Surg. 2006;132:665–71.CrossRef DLS M, Braud BE, Gunter KS, Carberry KE, Arrington KA, Heinle JS, et al. Encouraging results for the Contegra conduit in the problematic right ventricle–to–pulmonary artery connection. J Thorac Cardiovasc Surg. 2006;132:665–71.CrossRef
40.
go back to reference Ugaki S, Rutledge J, Aklabi MA, Ross DB, Adatia I, Rebeyka IM. An increased incidence of conduit Endocarditis in patients receiving bovine jugular vein grafts compared to Cryopreserved homograft for right ventricular outflow reconstruction. Ann Thorac Surg. 2015;99:140–6.CrossRefPubMed Ugaki S, Rutledge J, Aklabi MA, Ross DB, Adatia I, Rebeyka IM. An increased incidence of conduit Endocarditis in patients receiving bovine jugular vein grafts compared to Cryopreserved homograft for right ventricular outflow reconstruction. Ann Thorac Surg. 2015;99:140–6.CrossRefPubMed
41.
go back to reference Tiete AR, Sachweh JS, Roemer U, Kozlik-Feldmann R, Reichart B, Daebritz SH. Right ventricular outflow tract reconstruction with the Contegra bovine jugular vein conduit: a word of caution. Ann Thorac Surg. 2004;77:2151–6.CrossRefPubMed Tiete AR, Sachweh JS, Roemer U, Kozlik-Feldmann R, Reichart B, Daebritz SH. Right ventricular outflow tract reconstruction with the Contegra bovine jugular vein conduit: a word of caution. Ann Thorac Surg. 2004;77:2151–6.CrossRefPubMed
42.
go back to reference Mohammadi S, Belli E, Martinovic I, Houyel L, Capderou A, Petit J, et al. Surgery for right ventricle to pulmonary artery conduit obstruction: risk factors for further reoperation. Eur J Cardiothorac Surg. 2005;28:217–22.CrossRefPubMed Mohammadi S, Belli E, Martinovic I, Houyel L, Capderou A, Petit J, et al. Surgery for right ventricle to pulmonary artery conduit obstruction: risk factors for further reoperation. Eur J Cardiothorac Surg. 2005;28:217–22.CrossRefPubMed
43.
go back to reference DLS M, Zafar F, Arrington KA, Gonzalez SM, ED MK, Heinle JS, et al. Repeat Sternotomy in congenital heart surgery: no longer a risk factor. Ann Thorac Surg. 2008;86:897–902.CrossRef DLS M, Zafar F, Arrington KA, Gonzalez SM, ED MK, Heinle JS, et al. Repeat Sternotomy in congenital heart surgery: no longer a risk factor. Ann Thorac Surg. 2008;86:897–902.CrossRef
44.
go back to reference Swartz MF, Schiralli MP, Angona R, Cholette JM, Gensini F, Alfieris GM. The effect of repeat Sternotomy during right ventricular outflow tract reconstruction. Congenit Heart Dis. 2013;8:142–8.CrossRefPubMed Swartz MF, Schiralli MP, Angona R, Cholette JM, Gensini F, Alfieris GM. The effect of repeat Sternotomy during right ventricular outflow tract reconstruction. Congenit Heart Dis. 2013;8:142–8.CrossRefPubMed
45.
go back to reference Wojtalik M, Mrowczynski W, Żeromski J, Bartkowski R. Does contegra xenograft implantation evoke cellular immunity in children? Interact Cardiovasc Thorac Surg. 2003;2:273–8.CrossRefPubMed Wojtalik M, Mrowczynski W, Żeromski J, Bartkowski R. Does contegra xenograft implantation evoke cellular immunity in children? Interact Cardiovasc Thorac Surg. 2003;2:273–8.CrossRefPubMed
Metadata
Title
Pulmonary valve replacement after right ventricular outflow tract reconstruction with homograft vs Contegra®: a case control comparison of mortality and morbidity
Authors
Nicolas Poinot
Jean-Francois Fils
Hélène Demanet
Hugues Dessy
Dominique Biarent
Pierre Wauthy
Publication date
01-12-2018
Publisher
BioMed Central
Published in
Journal of Cardiothoracic Surgery / Issue 1/2018
Electronic ISSN: 1749-8090
DOI
https://doi.org/10.1186/s13019-018-0698-5

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