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Chu MWA, Ruel M, Graeve A, Gerdisch MW, Damiano RJ, Smith RL, Keeling WB, Wait MA, Hagberg RC, Quinn RD, Sethi GK, Floridia R, Barreiro CJ, Pruitt AL, Accola KD, Dagenais F, Markowitz AH, Ye J, Sekela ME, Tsuda RY, Duncan DA, Swistel DG, Harville LE, DeRose JJ, Lehr EJ, Alexander JH, Puskas JD. Low-Dose vs Standard Warfarin After Mechanical Mitral Valve Replacement: A Randomized Trial. Ann Thorac Surg 2023; 115:929-938. [PMID: 36610532 DOI: 10.1016/j.athoracsur.2022.12.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 11/04/2022] [Accepted: 12/06/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND Current guidelines recommend a target international normalized ratio (INR) range of 2.5 to 3.5 in patients with a mechanical mitral prosthesis. The Prospective Randomized On-X Anticoagulation Clinical Trial (PROACT) Mitral randomized controlled noninferiority trial assessed safety and efficacy of warfarin at doses lower than currently recommended in patients with an On-X (Artivion, Inc) mechanical mitral valve. METHODS After On-X mechanical mitral valve replacement, followed by at least 3 months of standard anticoagulation, 401 patients at 44 North American centers were randomized to low-dose warfarin (target INR, 2.0-2.5) or standard-dose warfarin (target INR, 2.5-3.5). All patients were prescribed aspirin, 81 mg daily, and encouraged to use home INR testing. The primary end point was the sum of the linearized rates of thromboembolism, valve thrombosis, and bleeding events. The design was based on an expected 7.3% event rate and 1.5% noninferiority margin. RESULTS Mean patient follow-up was 4.1 years. Mean INR was 2.47 and 2.92 (P <.001) in the low-dose and standard-dose warfarin groups, respectively. Primary end point rates were 11.9% per patient-year in the low-dose group and 12.0% per patient-year in the standard-dose group (difference, -0.07%; 95% CI, -3.40% to 3.26%). The CI >1.5%, thus noninferiority was not achieved. Rates (percentage per patient-year) of the individual components of the primary end point were 2.3% vs 2.5% for thromboembolism, 0.5% vs 0.5% for valve thrombosis, and 9.13% vs 9.04% for bleeding. CONCLUSIONS Compared with standard-dose warfarin, low-dose warfarin did not achieve noninferiority for the composite primary end point. (PROACT Clinicaltrials.gov number, NCT00291525).
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Affiliation(s)
- Michael W A Chu
- London Health Sciences Centre, Western University, London, Ontario, Canada
| | - Marc Ruel
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada.
| | | | | | | | | | | | - Michael A Wait
- University of Texas Southwestern Medical Center (St. Paul's), Dallas, Texas
| | | | | | | | | | | | | | | | - Francois Dagenais
- Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Quebec City, Quebec, Canada
| | | | - Jian Ye
- St. Paul's and Vancouver General Hospital, Vancouver, British Columbia, Canada
| | | | - Ryan Y Tsuda
- Southern Arizona Veterans Affairs Medical Center, Tucson, Arizona
| | - David A Duncan
- Novant Clinical Research Institute, Winston-Salem, North Carolina
| | | | - Lacy E Harville
- University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
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Jamieson WRE, Ely JL, Brink J, Pennel T, Bannon P, Patel J, Gupta RK, Mohan Rao PS, Agrawal D, Wiklund L, Kappetein AP, Haaverstad R, Geisner T, Doenst T, Schlensak C, Nair S, Brown C, Siepe M, Damiano RJ, Langlois Y, Cherian KM, Azar H, Chen JC, Bavaria JE, Fedoruk LM, Munfakh NA, Sridhar V, Scholz PM, Pfeffer TA, Ye J. PROSE: Prospective Randomized Trial of the On-X Mechanical Prosthesis and the St Jude Medical Mechanical Prosthesis Evaluation: Part 2: Study results-prostheses, positions, and economic development. JTCVS OPEN 2022; 12:51-70. [PMID: 36590733 PMCID: PMC9801238 DOI: 10.1016/j.xjon.2022.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 06/04/2022] [Accepted: 06/23/2022] [Indexed: 01/04/2023]
Abstract
Objectives The Prospective Randomized On-X Mechanical Prosthesis Versus St Jude Medical Mechanical Prosthesis Evaluation (PROSE) trial purpose was to investigate whether a current-generation mechanical prosthesis (On-X; On-X Life Technologies/Artivion Inc) reduced the incidence of thromboembolic-related complications compared with a previous-generation mechanical prosthesis (St Jude Medical Mechanical Prosthesis; Abbott/St Jude Medical). This second report documents the valve-related complications by individual prostheses and by Western and Developing populations. Methods The PROSE trial study was conducted in 28 worldwide centers and incorporated 855 subjects randomized between 2003 and 2016. The study enrollment was discontinued on August 31, 2016. The study protocol, and analyses of 10 demographic variables and 24 risk factors were published in detail in 2021. Results The total patient population (N = 855) included patients receiving an On-X valve (n = 462) and a St Jude Medical valve (n = 393). The overall freedom evaluation showed no differences at 5 years between the prostheses for thromboembolism or for valve thrombosis. There were also no differences in mortality. There were several differences between Developing and Western populations. The freedom relations at 5 years for mortality favored Western over Developing populations. Valve thrombosis was differentiated by position and site: aortic < mitral (P = .007) and Western < Developing (P = .005). In the mitral position there were no cases in Western populations, whereas there were 8 in Developing populations (P = .217). Conclusions The On-X valve and St Jude Medical valve performed equally well in the study with no differences found. The only differentiation occurred with valve thrombosis in the mitral position more than the aortic position and occurring in Developing more than Western populations. The occurrence of valve thrombosis was also related to a younger population possibly due to anticoagulation compliance based on record review.
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Affiliation(s)
- W. R. Eric Jamieson
- Vancouver Coastal Health Research Institute, Vancouver General Hospital and St. Paul's Hospital, University of British Columbia, Vancouver, British Colombia, Canada,Address for reprints: W. R. Eric Jamieson, MD, Vancouver Coastal Health Research Institute, University of British Columbia, 272 Waterleigh Dr, Vancouver, British Columbia V5X 4T2, Canada.
| | - John L. Ely
- Heart of the Matter Clinical Consultants, Austin, Tex
| | - Johan Brink
- Division of Cardiothoracic Surgery, University of Cape Town, Cape Town, South Africa
| | - Timothy Pennel
- Division of Cardiothoracic Surgery, University of Cape Town, Cape Town, South Africa
| | - Paul Bannon
- Department of Cardiovascular Surgery, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Jashvant Patel
- Department of Cardiac Surgery, B. D. Mehta Mahavir Heart Institute, Surat, India
| | - Rajiv Kumar Gupta
- Department of Cardiovascular and Thoracic Surgery, Dayanand Medical College, Ludhiana, India
| | - Prasanna Simha Mohan Rao
- Department of Cardiothoracic Surgery, Shri Jaya Deva Institute of Cardiovascular Sciences, Bangalore, India
| | - Damyanti Agrawal
- Department of Cardiovascular Surgery, Banaras Hindu University, Varanasi, India
| | - Lars Wiklund
- Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenberg, Sweden
| | | | - Rune Haaverstad
- Department of Cardiothoracic Surgery, Haukeland University Hospital, Bergen, Norway
| | - Thomas Geisner
- Department of Cardiothoracic Surgery, Universitats Klinik Jena, Jena, Germany
| | - Torsten Doenst
- Department of Cardiovascular and Thoracic Surgery, Universitats Klinik Tuebingen, Tuebingen, Germany
| | - Christian Schlensak
- Department of Cardiothoracic Surgery, Apollo Multispecialty Hospital, Chennai, India
| | - Salgunan Nair
- Department of Cardiovascular Surgery, Horizon New Brunswick Heart Center, Saint John, New Brunswich, Canada
| | - Craig Brown
- Department of Cardiovascular Surgery, Universitats Herzzentrum, Freiburg, Germany
| | - Matthias Siepe
- Department of Surgery, Washington University School of Medicine, St Louis, Mo
| | - Ralph J. Damiano
- Division of Cardiac Surgery, Jewish General Hospital, Montreal, Québec, Canada
| | - Yves Langlois
- Department of Cardiovascular Surgery, Frontier Lifeline Hospital, Chennai, India
| | | | - Hormoz Azar
- Department of Thoracic Surgery, Kaiser-Permanente Hospital, Honolulu, Hawaii
| | - John C. Chen
- Department of Surgery, Christian Hospital Northeast, St Louis, Mo
| | - Joseph E. Bavaria
- Division of Cardiovascular Surgery, University of Pennsylvania, Philadelphia, Pa
| | - Lynn M. Fedoruk
- Division of Cardiac Surgery, Victoria Heart Institute, Victoria, British Columbia, Canada
| | - Nabil A. Munfakh
- Department of Cardiothoracic and Vascular Surgery, Apollo Multispecialty Hospital, Madurai, India
| | - V. Sridhar
- Department of Surgery, Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Peter M. Scholz
- Department of Surgery, Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Thomas A. Pfeffer
- Department of Thoracic Surgery, Kaiser-Permanente Hospital, Los Angeles, Calif
| | - Jian Ye
- Division of Cardiovascular Surgery, St Paul's Hospital, Vancouver, British Columbia, Canada
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Kirov H, Caldonazo T, Doenst T. Treatment of valvular heart disease in young patients-"early evidence" versus "latest fashion". J Card Surg 2022; 37:2375-2377. [PMID: 35535022 DOI: 10.1111/jocs.16607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 04/30/2022] [Indexed: 11/27/2022]
Abstract
Is the performance of locally manufactured mechanical valve prostheses relevant for modern cardiac surgery, in which mechanical valve replacement has become a rarity? This question comes to mind reading the article in this issue of the Journal demonstrating equal outcomes of the TTK Chitra tilting disk mechanical heart valve prostheses in comparison to the SJM bi-leaflet blockbuster. The evidence documenting efficacy of mechanical valve replacement stems from the early ages of cardiac surgery, but often demonstrates superior outcomes in terms of survival and hemodynamics. Yet, the latest fashion in the Western world consists biological choices in combination with new transcatheter techniques (valve in valve options) or the Ozaki or Ross procedures. As long-term results are often missing and documented advantages for mechanical valves stems from early evidence, the local emphasis of mechanical valve replacement may possibly result in superior individual prognoses compared to following the Western world's latest fashions. Individual patient information and decision making moves into focus.
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Affiliation(s)
- Hristo Kirov
- Department of Cardiothoracic Surgery, University Hospital Jena, Friedrich-Schiller-University Jena, Jena, Germany
| | - Tulio Caldonazo
- Department of Cardiothoracic Surgery, University Hospital Jena, Friedrich-Schiller-University Jena, Jena, Germany
| | - Torsten Doenst
- Department of Cardiothoracic Surgery, University Hospital Jena, Friedrich-Schiller-University Jena, Jena, Germany
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Boxhammer E, Berezin AE, Paar V, Bacher N, Topf A, Pavlov S, Hoppe UC, Lichtenauer M. Severe Aortic Valve Stenosis and Pulmonary Hypertension: A Systematic Review of Non-Invasive Ways of Risk Stratification, Especially in Patients Undergoing Transcatheter Aortic Valve Replacement. J Pers Med 2022; 12:jpm12040603. [PMID: 35455719 PMCID: PMC9026430 DOI: 10.3390/jpm12040603] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 04/01/2022] [Accepted: 04/04/2022] [Indexed: 02/01/2023] Open
Abstract
Patients with severe aortic valve stenosis and concomitant pulmonary hypertension show a significantly reduced survival prognosis. Right heart catheterization as a preoperative diagnostic tool to determine pulmonary hypertension has been largely abandoned in recent years in favor of echocardiographic criteria. Clinically, determination of echocardiographically estimated systolic pulmonary artery pressure falls far short of invasive right heart catheterization data in terms of accuracy. The aim of the present systematic review was to highlight noninvasive possibilities for the detection of pulmonary hypertension in patients with severe aortic valve stenosis, with a special focus on cardiovascular biomarkers. A total of 525 publications regarding echocardiography, cardiovascular imaging and biomarkers related to severe aortic valve stenosis and pulmonary hypertension were analyzed in a systematic database analysis using PubMed Central®. Finally, 39 publications were included in the following review. It was shown that the current scientific data situation, especially regarding cardiovascular biomarkers as non-invasive diagnostic tools for the determination of pulmonary hypertension in severe aortic valve stenosis patients, is poor. Thus, there is a great scientific potential to combine different biomarkers (biomarker scores) in a non-invasive way to determine the presence or absence of PH.
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Affiliation(s)
- Elke Boxhammer
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
| | - Alexander E. Berezin
- Internal Medicine Department, State Medical University of Zaporozhye, 69035 Zaporozhye, Ukraine;
| | - Vera Paar
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
| | - Nina Bacher
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
| | - Albert Topf
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
| | - Sergii Pavlov
- Department of Clinical Laboratory Diagnostics, State Medical University of Zaporozhye, 69035 Zaporozhye, Ukraine;
| | - Uta C. Hoppe
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
| | - Michael Lichtenauer
- Department of Internal Medicine II, Division of Cardiology, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria; (E.B.); (V.P.); (N.B.); (A.T.); (U.C.H.)
- Correspondence:
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