ATS
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
 QUICK SEARCH:   [advanced]


     


This Article
Right arrow Full Text
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to Personal Folders
Right arrow Download to citation manager
Right arrow Author home page(s):
D. Craig Miller
Philip E. Oyer
Edward B. Stinson
Robert C. Robbins
Bruce A. Reitz
Norman E. Shumway
Right arrow Permission Requests
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Fann, J. I.
Right arrow Articles by Shumway, N. E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Fann, J. I.
Right arrow Articles by Shumway, N. E.
Related Collections
Right arrowRelated Article

Ann Thorac Surg 1996;62:1301-1311
© 1996 The Society of Thoracic Surgeons


Original Article: Cardiovascular

Twenty-Year Clinical Experience With Porcine Bioprostheses

James I. Fann, MD, D. Craig Miller, MD, KathleenA. Moore, BS, R. Scott Mitchell, MD, Philip E. Oyer, MD, PhD, Edward B. Stinson, MD, Robert C. Robbins, MD, Bruce A. Reitz, MD, Norman E. Shumway, MD, PhD

Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California

Background. For the past 25 years, porcine valves have been the most widely implanted bioprosthesis, thereby becoming the standard for comparison with newer bioprosthetic valves.

Methods. We retrospectively analyzed 2,879 patients who underwent aortic (AVR; n = 1,594) or mitral (MVR; n = 1,285) valve replacement between 1971 and 1990. Follow-up was 97% complete and extended to 20 years (total, 17,976 patient-years). Patient age ranged from 16 to 94 years; mean age in patients who underwent AVR was 60 ± 15 (± standard deviation) years; that for patients who underwent MVR was 58 ± 13 years.

Results. The operative mortality rates were 7% ± 1% (70% confidence limits) for AVR and 10% ± 1% for MVR. Actuarial estimates of freedom from structural valve deterioration at 10 and 15 years were 78% ± 2% (SE) and 49% ± 4%, respectively, for the AVR subgroup; and 69% ± 2% and 32% ± 4%, respectively, for the MVR subgroup (AVR > MVR; p< 0.05). Estimates of freedom from reoperation at 10 and 15 years were 76% ± 2% and 53% ± 4%, respectively, for the AVR subgroup and 70% ± 2% and 33% ± 4%, respectively, for the MVR subgroup (AVR > MVR; p < 0.05). Estimates of freedom from thromboembolism at 10 and 15 years were 92% ± 1% and 87% ± 2%, respectively, for the AVR subgroup and 86% ± 1% and 77% ± 3%, respectively, for the MVR subgroup (AVR > MVR; p < 0.05). Estimates of freedom from anticoagulant-related hemorrhage at 10 and 15 years were both 96% ± 1% for the AVR subgroup and 93% ± 1% and 90% ± 2%, respectively, for the MVR subgroup (AVR > MVR; p < 0.05). Estimates of freedom from valve-related mortality at 10 and 15 years were 86% ± 1% and 78% ± 3%, respectively, for the AVR subgroup and 84% ± 2% and 70% ± 4%, respectively, for the MVR subgroup (p = not significant). Multivariate analysis (Cox model) showed younger age, later year of operation, and valve site (MVR > AVR) to be significant risk factors for structural valve deterioration. Younger age, later year of operation, valve site (MVR > AVR), and renal insufficiency were the significant, independent risk factors for reoperation. Multivariate analysis revealed that higher New York Heart Association functional class, longer cardiopulmonary bypass time, congestive heart failure, renal insufficiency, and longer cross-clamp time were significant risk factors for valve-related mortality. Valve manufacturer did not emerge as a factor in any analysis.

Conclusions. These long-term results with porcine bioprostheses were satisfactory, particularly in older patients and those undergoing AVR. As expected, younger age was a significant risk factor for structural valve deterioration and reoperation in both groups. Surprisingly, the durability of porcine bioprosthetic valves has not improved over time, which possibly can be attributed to more enhanced postoperative surveillance and earlier reintervention. These first-generation Hancock and Carpentier-Edwards porcine bioprostheses achieved similar long-term performance.


Related Article

Discussion
Ann. Thorac. Surg. 1996 62: 1311-1312. [Extract] [Full Text]



This article has been cited by other articles:


Home page
Ann. Thorac. Surg.Home page
W. B. Eichinger, I. M. Hettich, D. J. Ruzicka, K. Holper, C. Schricker, S. Bleiziffer, and R. Lange
Twenty-year experience with the st. Jude medical biocor bioprosthesis in the aortic position.
Ann. Thorac. Surg., October 1, 2008; 86(4): 1204 - 1210.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
E. Hickey, S. M. Langley, O. Allemby-Smith, S. A. Livesey, and J. L. Monro
Subcoronary Allograft Aortic Valve Replacement: Parametric Risk-Hazard Outcome Analysis to a Minimum of 20 Years
Ann. Thorac. Surg., November 1, 2007; 84(5): 1564 - 1570.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
M. W.A. van Geldorp, W.R. E. Jamieson, A. P. Kappetein, J. P.A. Puvimanasinghe, M. J.C. Eijkemans, G. L. Grunkemeier, J. J.M. Takkenberg, and A. J.J.C. Bogers
Usefulness of microsimulation to translate valve performance into patient outcome: Patient prognosis after aortic valve replacement with the Carpentier Edwards supra-annular valve
J. Thorac. Cardiovasc. Surg., September 1, 2007; 134(3): 702 - 709.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
S. Lehmann, T. Walther, J. Kempfert, S. Leontjev, A. Rastan, V. Falk, and F. W. Mohr
Stentless Versus Conventional Xenograft Aortic Valve Replacement: Midterm Results of a Prospectively Randomized Trial
Ann. Thorac. Surg., August 1, 2007; 84(2): 467 - 472.
[Abstract] [Full Text] [PDF]


Home page
ICVTSHome page
S. Yadav, A. J. Hodge, A. D. Hilless, and P. D. Skillington
Outcomes with Toronto stentless porcine aortic valve: the Australian experience
Interactive CardioVascular and Thoracic Surgery, December 1, 2006; 5(6): 709 - 715.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
C. Valfre, G. Rizzoli, C. Zussa, P. Ius, E. Polesel, S. Mirone, T. Bottio, and G. Gerosa
Clinical results of Hancock II versus Hancock Standard at long-term follow-up.
J. Thorac. Cardiovasc. Surg., September 1, 2006; 132(3): 595 - 601.e2.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
M. R. Moon, M. K. Pasque, N. A. Munfakh, S. J. Melby, J. S. Lawton, N. Moazami, J. E. Codd, T. D. Crabtree, H. B. Barner, and R. J. Damiano Jr
Prosthesis-Patient Mismatch After Aortic Valve Replacement: Impact of Age and Body Size on Late Survival
Ann. Thorac. Surg., February 1, 2006; 81(2): 481 - 489.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
P. Totaro, N. Degno, A. Zaidi, A. Youhana, and V. Argano
Carpentier-Edwards PERIMOUNT Magna bioprosthesis: A stented valve with stentless performance?
J. Thorac. Cardiovasc. Surg., December 1, 2005; 130(6): 1668 - 1674.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
J. P.A. Puvimanasinghe, J. J.M. Takkenberg, M. J.C. Eijkemans, E. W. Steyerberg, L. A. van Herwerden, G. L. Grunkemeier, J. D. F. Habbema, and A. J.J.C. Bogers
Prognosis After Aortic Valve Replacement With the Carpentier-Edwards Pericardial Valve: Use of Microsimulation
Ann. Thorac. Surg., September 1, 2005; 80(3): 825 - 831.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
I. Martinovic, I. Farah, M. Everlien, S. Lindemann, I. Knez, T. Wittlinger, H. Greve, and P. Vogt
Eight-year results after aortic valve replacement with the CryoLife-O'Brien Stentless Aortic Porcine Bioprosthesis
J. Thorac. Cardiovasc. Surg., September 1, 2005; 130(3): 777 - 777.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
B. Mahesh, G. Angelini, M. Caputo, X. Y. Jin, and A. Bryan
Prosthetic Valve Endocarditis
Ann. Thorac. Surg., September 1, 2005; 80(3): 1151 - 1158.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
I. Martinovic, M. Everlien, I. Farah, T. Wittlinger, I. Knez, H. Greve, and P. Vogt
Midterm Results After Aortic Valve Replacement With a Stentless Bioprosthesis Aortic Valve
Ann. Thorac. Surg., July 1, 2005; 80(1): 198 - 203.
[Abstract] [Full Text] [PDF]


Home page
Asian Cardiovasc. Thorac. Ann.Home page
M. Tamim, T. Bove, Y. Van Belleghem, F. Caes, K. Francois, and G. J Van Nooten
Aortic Valve Replacement with Toronto SPV in Elderly Patients: 10-Year Results
Asian Cardiovasc Thorac Ann, June 1, 2005; 13(2): 143 - 148.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
F. W. Mohr, S. Lehmann, V. Falk, S. Metz, C. Walther, N. Doll, A. Rastan, J. Gummert, and T. Walther
Clinical Experience With Stentless Mitral Valve Replacement
Ann. Thorac. Surg., March 1, 2005; 79(3): 772 - 775.
[Abstract] [Full Text] [PDF]


Home page
HeartHome page
J P A Puvimanasinghe, J J M Takkenberg, M B Edwards, M J C Eijkemans, E W Steyerberg, L A van Herwerden, K M Taylor, G L Grunkemeier, J D F Habbema, and A J J C Bogers
Comparison of outcomes after aortic valve replacement with a mechanical valve or a bioprosthesis using microsimulation
Heart, October 1, 2004; 90(10): 1172 - 1178.
[Abstract] [Full Text] [PDF]


Home page
CirculationHome page
T. Walther, S. Lehmann, V. Falk, S. Metz, N. Doll, A. Rastan, M. Viehweg, M. Richter, J. Gummert, and F. W. Mohr
Prospectively Randomized Evaluation of Stented Xenograft Hemodynamic Function in the Aortic Position
Circulation, September 14, 2004; 110(11_suppl_1): II-74 - II-78.
[Abstract] [Full Text] [PDF]


Home page
Eur. J. Cardiothorac. Surg.Home page
M. Ruel, A. Kulik, F. D. Rubens, P. Bedard, R. G. Masters, A. L. Pipe, and T. G. Mesana
Late incidence and determinants of reoperation in patients with prosthetic heart valves
Eur. J. Cardiothorac. Surg., March 1, 2004; 25(3): 364 - 370.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
K. Minakata, H. V. Schaff, K. J. Zehr, J. A. Dearani, R. C. Daly, T. A. Orszulak, F. J. Puga, and G. K. Danielson
Is repair of aortic valve regurgitation a safe alternative to valve replacement?
J. Thorac. Cardiovasc. Surg., March 1, 2004; 127(3): 645 - 653.
[Abstract] [Full Text] [PDF]


Home page
CirculationHome page
T. Walther, S. Lehmann, V. Falk, C. Walther, N. Doll, A. Rastan, S. Metz, J. Schneider, J. Gummert, and F. W. Mohr
Midterm Results After Stentless Mitral Valve Replacement
Circulation, September 9, 2003; 108(90101): II-85 - 89.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
H.-Y. Yu, Y.-L. Ho, S.-H. Chu, Y.-S. Chen, S.-S. Wang, and F.-Y. Lin
Long-term evaluation of Carpentier-Edwards porcine bioprosthesis for rheumatic heart disease
J. Thorac. Cardiovasc. Surg., July 1, 2003; 126(1): 80 - 89.
[Abstract] [Full Text] [PDF]


Home page
Eur. J. Cardiothorac. Surg.Home page
P. Simon, M.T. Kasimir, G. Seebacher, G. Weigel, R. Ullrich, U. Salzer-Muhar, E. Rieder, and E. Wolner
Early failure of the tissue engineered porcine heart valve SYNERGRAFTTM in pediatric patients
Eur. J. Cardiothorac. Surg., June 1, 2003; 23(6): 1002 - 1006.
[Abstract] [Full Text] [PDF]


Home page
Eur. J. Cardiothorac. Surg.Home page
J. P.A. Puvimanasinghe, J. J.M. Takkenberg, M. J.C. Eijkemans, E. W. Steyerberg, L. A. van Herwerden, G. L. Grunkemeier, J. D. F. Habbema, and A. J.J.C. Bogers
Choice of a mechanical valve or a bioprosthesis for AVR: does CABG matter?
Eur. J. Cardiothorac. Surg., May 1, 2003; 23(5): 688 - 695.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
T. A. Timek, D. T. Lai, F. A. Tibayan, P. Dagum, G. T. Daughters, D. Liang, N. B. Ingels Jr, and D. C. Miller
Hemodynamic performance of an unstented xenograft mitral valve substitute
J. Thorac. Cardiovasc. Surg., September 1, 2002; 124(3): 541 - 552.
[Abstract] [Full Text] [PDF]


Home page
CirculationHome page
C. A. Herzog, J. Z. Ma, and A. J. Collins
Long-Term Survival of Dialysis Patients in the United States With Prosthetic Heart Valves: Should ACC/AHA Practice Guidelines on Valve Selection Be Modified?
Circulation, March 19, 2002; 105(11): 1336 - 1341.
[Abstract] [Full Text] [PDF]


Home page
Eur. J. Cardiothorac. Surg.Home page
M. Murtra
The adventure of cardiac surgery
Eur. J. Cardiothorac. Surg., February 1, 2002; 21(2): 167 - 180.
[Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
M. K. Banbury, D. M. Cosgrove III, J. A. White, E. H. Blackstone, R. W. M. Frater, and J. E. Okies
Age and valve size effect on the long-term durability of the Carpentier-Edwards aortic pericardial bioprosthesis
Ann. Thorac. Surg., September 1, 2001; 72(3): 753 - 757.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
S. S. Khan, A. Trento, M. DeRobertis, R. M. Kass, M. Sandhu, L. S. C. Czer, C. Blanche, S. Raissi, G. P. Fontana, W. Cheng, et al.
Twenty-year comparison of tissue and mechanical valve replacement
J. Thorac. Cardiovasc. Surg., August 1, 2001; 122(2): 257 - 269.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
F. Santini, G. B. Luciani, S. Restivo, G. Casali, R. Pessotto, P. Bertolini, A. Rossi, and A. Mazzucco
Over twenty-year follow-up of the standard Hancock porcine bioprosthesis implanted in the mitral position
Ann. Thorac. Surg., May 1, 2001; 71 (2007): S232 - S235.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
M. Dahm, B.-J. Chang, O. Prucker, M. Pierkes, T. Alt, E. Mayer, J. Ruhe, and H. Oelert
Surface attached ultrathin polymer monolayers for control of cell adhesion
Ann. Thorac. Surg., May 1, 2001; 71 (2007): S437 - S440.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
M. R. Moon, D. C. Miller, K. A. Moore, P. E. Oyer, R. S. Mitchell, R. C. Robbins, E. B. Stinson, N. E. Shumway, and B. A. Reitz
Treatment of endocarditis with valve replacement: the question of tissue versus mechanical prosthesis
Ann. Thorac. Surg., April 1, 2001; 71(4): 1164 - 1171.
[Abstract] [Full Text] [PDF]


Home page
CirculationHome page
J. P. A. Puvimanasinghe, E. W. Steyerberg, J. J. M. Takkenberg, M. J. C. Eijkemans, L. A van Herwerden, A. J. J. C. Bogers, and J. D. F. Habbema
Prognosis After Aortic Valve Replacement With a Bioprosthesis : Predictions Based on Meta-Analysis and Microsimulation
Circulation, March 20, 2001; 103(11): 1535 - 1541.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
K. Kirali, M. Guler, A. Tuncer, B. Daglar, G. Ipek, O. Isik, and C. Yakut
Fifteen-year clinical experience with the Biocor porcine bioprostheses in the mitral position
Ann. Thorac. Surg., March 1, 2001; 71(3): 811 - 815.
[Abstract] [Full Text] [PDF]


Home page
Eur Heart JHome page
R.M Grocott-Mason, O Lund, H Elwidaa, R Mazhar, V Chandrasakeran, A.G Mitchell, C Ilsley, A Khaghani, A Rees, and M Yacoub
Long-term results after aortic valve replacement in patients with congestive heart failure. Homografts vs prosthetic valves
Eur. Heart J., October 2, 2000; 21(20): 1698 - 1707.
[Abstract] [PDF]


Home page
Eur. J. Cardiothorac. Surg.Home page
M. Vrandecic, F. A. Fantini, B. G. Filho, O. C. de Oliveira, I. M. da Costa Junior, and E. Vrandecic
Retrospective clinical analysis of stented vs. stentless porcine aortic bioprostheses
Eur. J. Cardiothorac. Surg., July 1, 2000; 18(1): 46 - 53.
[Abstract] [Full Text] [PDF]


Home page
CirculationHome page
T. Walther, C. Walther, V. Falk, A. Diegeler, R. Krakor, J. Schneider, R. Autschbach, and F. W. Mohr
Early Clinical Results After Stentless Mitral Valve Implantation and Comparison With Conventional Valve Repair or Replacement
Circulation, November 9, 1999; 100(90002): II-78 - 83.
[Abstract] [Full Text] [PDF]


Home page
Eur. J. Cardiothorac. Surg.Home page
O. Lund, H. K. Pilegaard, L. B. Ilkjaer, S. L. Nielsen, and H. Arildsen
Performance profile of the Starr-Edwards aortic cloth covered valve, track valve, and silastic ball valve
Eur. J. Cardiothorac. Surg., October 1, 1999; 16(4): 403 - 413.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
W. R. Eric Jamieson, M. A. Marchand, C. L. Pelletier, R. Norton, M. Pellerin, T. W. Dubiel, M. R. Aupart, W. J. Daenen, M. P. Holden, T. E. David, et al.
STRUCTURAL VALVE DETERIORATION IN MITRAL REPLACEMENT SURGERY: COMPARISON OF CARPENTIER-EDWARDS SUPRA-ANNULAR PORCINE AND PERIMOUNT PERICARDIAL BIOPROSTHESES
J. Thorac. Cardiovasc. Surg., August 1, 1999; 118(2): 297 - 305.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
E. Weinschelbaum, P. Stutzbach, M. Oliva, J. Zaidman, A. Torino, and E. Gabe
MANUAL DEBRIDEMENT OF THE AORTIC VALVE IN ELDERLY PATIENTS WITH DEGENERATIVE AORTIC STENOSIS
J. Thorac. Cardiovasc. Surg., June 1, 1999; 117(6): 1157 - 1165.
[Abstract] [Full Text] [PDF]


Home page
CirculationHome page
A. Weerasinghe, M.-B. Edwards, and K. M. Taylor
First Redo Heart Valve Replacement : A 10-Year Analysis
Circulation, February 9, 1999; 99(5): 655 - 658.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
W.R. E. Jamieson, L. H. Burr, M. T. Janusz, A. I. Munro, R. I. Hayden, R. T. Miyagishima, H. Ling, G. J. Fradet, S. V. Lichtenstein, and K. M. Stewart
Carpentier-Edwards standard and supraannular porcine bioprostheses: comparison of technology
Ann. Thorac. Surg., January 1, 1999; 67(1): 10 - 17.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
O. Lund, V. Chandrasekaran, R. Grocott-Mason, H. Elwidaa, R. Mazhar, A. Khaghani, A. Mitchell, C. Ilsley, and M. H. Yacoub
PRIMARY AORTIC VALVE REPLACEMENT WITH ALLOGRAFTS OVER TWENTY-FIVE YEARS: VALVE-RELATED AND PROCEDURE-RELATED DETERMINANTS OF OUTCOME
J. Thorac. Cardiovasc. Surg., January 1, 1999; 117(1): 77 - 91.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
B. G. Barratt-Boyes, W. M. Jaffe, and R. M. Whitlock
THE MEDTRONIC INTACT* PORCINE VALVE: TEN-YEAR CLINICAL REVIEW
J. Thorac. Cardiovasc. Surg., December 1, 1998; 116(6): 1005 - 1014.
[Abstract] [Full Text] [PDF]


Home page
Asian Cardiovasc. Thorac. Ann.Home page
M. Emir, G. Uzunonat, B. Yamak, A T. Ulus, M K. Gol, Z. Iscan, S F. Katircioglu, B. Mavitas, O. Tasdemir, and K. Bayazit
Effects of Pregnancy on Long-Term Follow-Up of Mitral Valve Bioprostheses
Asian Cardiovasc Thorac Ann, September 1, 1998; 6(3): 174 - 178.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
F. Isobe and Y. Kawashima
The outcome and indications of the Cox maze III procedure for chronic atrial fibrillation with mitral valve disease
J. Thorac. Cardiovasc. Surg., August 1, 1998; 116(2): 220 - 224.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
G. B. Luciani, P. Bertolini, B. Vecchi, and A. Mazzucco
Midterm results after aortic valve replacement with freehand stentless xenografts: a comparison of three prostheses
J. Thorac. Cardiovasc. Surg., June 1, 1998; 115(6): 1287 - 1291.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
J. Chanda, R. Kuribayashi, and T. Abe
Prevention of Calcification in Glutaraldehyde-Treated Porcine Aortic and Pulmonary Valves
Ann. Thorac. Surg., October 1, 1997; 64(4): 1063 - 1066.
[Abstract] [Full Text]




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ANN THORAC SURG ASIAN CARDIOVASC THORAC ANN EUR J CARDIOTHORAC SURG
J THORAC CARDIOVASC SURG ICVTS ALL CTSNet JOURNALS
Copyright © 1996 by The Society of Thoracic Surgeons.