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Dawidowska K, Siondalski P, Kołaczkowska M. In Vitro Study of a Stentless Aortic Bioprosthesis Made of Bacterial Cellulose. Cardiovasc Eng Technol 2020; 11:646-654. [PMID: 33205361 PMCID: PMC7782396 DOI: 10.1007/s13239-020-00500-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 11/05/2020] [Indexed: 12/02/2022]
Abstract
PURPOSE The paper present findings from an in vitro experimental study of a stentless human aortic bioprosthesis (HAB) made of bacterial cellulose (BC). Three variants of the basic model were designed and tested to identify the valve prosthesis with the best performance parameters. The modified models were made of BC, and the basic model of pericardium. METHODS Each model (named V1, V2 and V3) was implanted into a 90 mm porcine aorta. Effective Orifice Area (EOA), rapid valve opening time (RVOT) and rapid valve closing time (RVCT) were determined. The flow resistance of each bioprosthesis model during the simulated heart systole, i.e. for the mean differential pressure (ΔP) at the time of full valve opening was measured. All experimental specimens were exposed to a mean blood pressure (MBP) of 90.5 ± 2.3 mmHg. RESULTS The V3 model demonstrated the best performance. The index defining the maximum opening of the bioprosthesis during systole for models V1, V2 and V3 was 2.67 ± 0.59, 2.04 ± 0.23 and 2.85 ± 0.59 cm2, respectively. The mean flow rate through the V3 valve was 5.7 ± 1, 6.9 ± 0.7 and 8.9 ± 1.4 l/min for stroke volume (SV) of 65, 90 and 110 mL, respectively. The phase of immediate opening and closure for models V1, V2 and V3 was 8, 7 and 5% of the cycle duration, respectively. The mean flow resistance of the models was: 4.07 ± 2.1, 4.28 ± 2.51 and 5.6 ± 2.32 mmHg. CONCLUSIONS The V3 model of the aortic valve prosthesis is the most effective. In vivo tests using BC as a structural material for this model are recommended. The response time of the V3 model to changed work conditions is comparable to that of a healthy human heart. The model functions as an aortic valve prosthesis in in vitro conditions.
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Affiliation(s)
- Kinga Dawidowska
- Medical Engineering Division, Maritime Advanced Research Centre, Szczecińska 65, 80-392, Gdańsk, Poland.
| | - Piotr Siondalski
- Cardiac and Vascular Surgery Department, Medical University of Gdańsk, Dębinki 7, 80-211, Gdańsk, Poland
| | - Magdalena Kołaczkowska
- Cardiac and Vascular Surgery Department, Medical University of Gdańsk, Dębinki 7, 80-211, Gdańsk, Poland
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Fatima B, Mohananey D, Khan FW, Jobanputra Y, Tummala R, Banerjee K, Krishnaswamy A, Mick S, Tuzcu EM, Blackstone E, Svensson L, Kapadia S. Durability Data for Bioprosthetic Surgical Aortic Valve. JAMA Cardiol 2019; 4:71-80. [DOI: 10.1001/jamacardio.2018.4045] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Benish Fatima
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
| | - Divyanshu Mohananey
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
| | - Fazal W. Khan
- Department of Cardiovascular Surgery, Mayo Clinic, Rochester, Minnesota
| | - Yash Jobanputra
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
| | - Ramyashree Tummala
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
| | - Kinjal Banerjee
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
| | - Amar Krishnaswamy
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
| | - Stephanie Mick
- Department of Cardiothoracic Surgery, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
| | - E. Murat Tuzcu
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
| | - Eugene Blackstone
- Department of Cardiothoracic Surgery, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
| | - Lars Svensson
- Department of Cardiothoracic Surgery, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
| | - Samir Kapadia
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
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Stefanelli G, Pirro F, Olaru A, Danniballe G, Labia C, Weltert L. Long-term outcomes using the stentless LivaNova-Sorin Pericarbon Freedom™ valve after aortic valve replacement†. Interact Cardiovasc Thorac Surg 2018; 27:116-123. [DOI: 10.1093/icvts/ivy012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 01/07/2018] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Fabrizio Pirro
- Department of Cardiac Surgery, Hesperia Hospital, Modena, Italy
| | - Alina Olaru
- Department of Cardiac Surgery, Hesperia Hospital, Modena, Italy
| | | | - Clorinda Labia
- Department of Cardiac Surgery, Hesperia Hospital, Modena, Italy
| | - Luca Weltert
- Department of Cardiac Surgery, European Hospital, Rome, Italy
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Dvir D, Bourguignon T, Otto CM, Hahn RT, Rosenhek R, Webb JG, Treede H, Sarano ME, Feldman T, Wijeysundera HC, Topilsky Y, Aupart M, Reardon MJ, Mackensen GB, Szeto WY, Kornowski R, Gammie JS, Yoganathan AP, Arbel Y, Borger MA, Simonato M, Reisman M, Makkar RR, Abizaid A, McCabe JM, Dahle G, Aldea GS, Leipsic J, Pibarot P, Moat NE, Mack MJ, Kappetein AP, Leon MB. Standardized Definition of Structural Valve Degeneration for Surgical and Transcatheter Bioprosthetic Aortic Valves. Circulation 2018; 137:388-399. [DOI: 10.1161/circulationaha.117.030729] [Citation(s) in RCA: 260] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Bioprostheses are prone to structural valve degeneration, resulting in limited long-term durability. A significant challenge when comparing the durability of different types of bioprostheses is the lack of a standardized terminology for the definition of a degenerated valve. This issue becomes especially important when we try to compare the degeneration rate of surgically inserted and transcatheter bioprosthetic valves. This document, by the VIVID (Valve-in-Valve International Data), proposes practical and standardized definitions of valve degeneration and provides recommendations for the timing of clinical and imaging follow-up assessments accordingly. Its goal is to improve the quality of research and clinical care for patients with deteriorated bioprostheses by providing objective and strict criteria that can be utilized in future clinical trials. We hope that the adoption of these criteria by both the cardiological and surgical communities will lead to improved comparability and interpretation of durability analyses.
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Affiliation(s)
- Danny Dvir
- University of Washington Medical Center, Seattle (D.D., C.M.O., G.B.M., M.R., J.M.M., G.S.A.)
| | | | - Catherine M. Otto
- University of Washington Medical Center, Seattle (D.D., C.M.O., G.B.M., M.R., J.M.M., G.S.A.)
| | - Rebecca T. Hahn
- Columbia University Medical Center, New York (R.T.H., M.A.B., M.B.L.)
| | | | - John G. Webb
- St Paul’s Hospital, Vancouver, British Columbia, Canada (J.G.W., M.S., J.L.)
| | | | | | - Ted Feldman
- NorthShore University HealthSystem, Evanston, IL (T.F.)
| | | | - Yan Topilsky
- Tel Aviv Sourasky Medical Center, Israel (Y.T., Y.A.)
| | | | | | - G. Burkhard Mackensen
- University of Washington Medical Center, Seattle (D.D., C.M.O., G.B.M., M.R., J.M.M., G.S.A.)
| | | | - Ran Kornowski
- Rabin Medical Center, Sackler School of Medicine, Tel Aviv University, Israel (R.K.)
| | - James S. Gammie
- University of Maryland School of Medicine, Baltimore (J.S.G.)
| | - Ajit P. Yoganathan
- Georgia Institute of Technology and Emory University, Atlanta, GA (A.P.Y.)
| | - Yaron Arbel
- Tel Aviv Sourasky Medical Center, Israel (Y.T., Y.A.)
| | - Michael A. Borger
- Columbia University Medical Center, New York (R.T.H., M.A.B., M.B.L.)
| | - Matheus Simonato
- St Paul’s Hospital, Vancouver, British Columbia, Canada (J.G.W., M.S., J.L.)
| | - Mark Reisman
- University of Washington Medical Center, Seattle (D.D., C.M.O., G.B.M., M.R., J.M.M., G.S.A.)
| | - Raj R. Makkar
- Cedars-Sinai Medical Center, Los Angeles, CA (R.R.M.)
| | | | - James M. McCabe
- University of Washington Medical Center, Seattle (D.D., C.M.O., G.B.M., M.R., J.M.M., G.S.A.)
| | - Gry Dahle
- Rikshospitalet-Radiumhospitalet Medical Center, Oslo, Norway (G.D.)
| | - Gabriel S. Aldea
- University of Washington Medical Center, Seattle (D.D., C.M.O., G.B.M., M.R., J.M.M., G.S.A.)
| | - Jonathon Leipsic
- St Paul’s Hospital, Vancouver, British Columbia, Canada (J.G.W., M.S., J.L.)
| | | | - Neil E. Moat
- Royal Brompton Hospital, London, United Kingdom (N.E.M.)
| | | | | | - Martin B. Leon
- Columbia University Medical Center, New York (R.T.H., M.A.B., M.B.L.)
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Foroutan F, Guyatt GH, O'Brien K, Bain E, Stein M, Bhagra S, Sit D, Kamran R, Chang Y, Devji T, Mir H, Manja V, Schofield T, Siemieniuk RA, Agoritsas T, Bagur R, Otto CM, Vandvik PO. Prognosis after surgical replacement with a bioprosthetic aortic valve in patients with severe symptomatic aortic stenosis: systematic review of observational studies. BMJ 2016; 354:i5065. [PMID: 27683072 PMCID: PMC5040922 DOI: 10.1136/bmj.i5065] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE To determine the frequency of survival, stroke, atrial fibrillation, structural valve deterioration, and length of hospital stay after surgical replacement of an aortic valve (SAVR) with a bioprosthetic valve in patients with severe symptomatic aortic stenosis. DESIGN Systematic review and meta-analysis of observational studies. DATA SOURCES Medline, Embase, PubMed (non-Medline records only), Cochrane Database of Systematic Reviews, and Cochrane CENTRAL from 2002 to June 2016. STUDY SELECTION Eligible observational studies followed patients after SAVR with a bioprosthetic valve for at least two years. METHODS Reviewers, independently and in duplicate, evaluated study eligibility, extracted data, and assessed risk of bias for patient important outcomes. We used the GRADE system to quantify absolute effects and quality of evidence. Published survival curves provided data for survival and freedom from structural valve deterioration, and random effect models provided the framework for estimates of pooled incidence rates of stroke, atrial fibrillation, and length of hospital stay. RESULTS In patients undergoing SAVR with a bioprosthetic valve, median survival was 16 years in those aged 65 or less, 12 years in those aged 65 to 75, seven years in those aged 75 to 85, and six years in those aged more than 85. The incidence rate of stroke was 0.25 per 100 patient years (95% confidence interval 0.06 to 0.54) and atrial fibrillation 2.90 per 100 patient years (1.78 to 4.79). Post-SAVR, freedom from structural valve deterioration was 94.0% at 10 years, 81.7% at 15 years, and 52% at 20 years, and mean length of hospital stay was 12 days (95% confidence interval 9 to 15). CONCLUSION Patients with severe symptomatic aortic stenosis undergoing SAVR with a bioprosthetic valve can expect only slightly lower survival than those without aortic stenosis, and a low incidence of stroke and, up to 10 years, of structural valve deterioration. The rate of deterioration increases rapidly after 10 years, and particularly after 15 years.
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Affiliation(s)
- Farid Foroutan
- Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main St West, Hamilton, Ontario, Canada L8S 4L8 Heart Failure/Transplant Program, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Gordon H Guyatt
- Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main St West, Hamilton, Ontario, Canada L8S 4L8
| | - Kathleen O'Brien
- Heart Failure/Transplant Program, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Eva Bain
- Heart Failure/Transplant Program, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Madeleine Stein
- Heart Failure/Transplant Program, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Sai Bhagra
- Heart Failure/Transplant Program, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Daegan Sit
- Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main St West, Hamilton, Ontario, Canada L8S 4L8
| | - Rakhshan Kamran
- Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main St West, Hamilton, Ontario, Canada L8S 4L8
| | - Yaping Chang
- Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main St West, Hamilton, Ontario, Canada L8S 4L8
| | - Tahira Devji
- Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main St West, Hamilton, Ontario, Canada L8S 4L8
| | - Hassan Mir
- Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main St West, Hamilton, Ontario, Canada L8S 4L8
| | - Veena Manja
- Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main St West, Hamilton, Ontario, Canada L8S 4L8 Department of Internal Medicine, State University of New York at Buffalo, Buffalo, USA VA WNY Health Care System at Buffalo, Department of Veterans Affairs, USA
| | - Toni Schofield
- Heart Failure/Transplant Program, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Reed A Siemieniuk
- Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main St West, Hamilton, Ontario, Canada L8S 4L8 Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Thomas Agoritsas
- Department of Clinical Epidemiology and Biostatistics, McMaster University, 1280 Main St West, Hamilton, Ontario, Canada L8S 4L8 Division of General Internal Medicine, and Division of Clinical Epidemiology, University Hospitals of Geneva, Geneva, Switzerland
| | - Rodrigo Bagur
- Division of Cardiology, London Health Sciences Centre and Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada N6A 5W9
| | - Catherine M Otto
- Division of Cardiology, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Per O Vandvik
- Department of Internal Medicine, Innlandet Hospital Trust-division Gjøvik, Norway Institute of Health and Society, Faculty of Medicine, University of Oslo, Norway
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Sponga S, Daffarra C, Pavoni D, Vendramin I, Mazzaro E, Piani D, Nalli C, Nucifora G, Livi U. Surgical management of destructive aortic endocarditis: left ventricular outflow reconstruction with the Sorin Pericarbon Freedom stentless bioprosthesis†. Eur J Cardiothorac Surg 2015; 49:242-8. [PMID: 25732971 DOI: 10.1093/ejcts/ezv068] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 01/02/2015] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES The treatment of complicated aortic endocarditis with periannular abscesses and root disarrangement is a surgical challenge, and includes left ventricular outflow tract (LVOT) reconstruction with the patch technique or homograft implantation. The results of a simplified technique to reconstruct the LVOT in destructive endocarditis of either the aortic native valve or valve prosthesis with the Sorin Pericarbon Freedom stentless valve are reported. METHODS Since August 2007, 40 patients with destructive endocarditis (mean age: 69 ± 12, 75% males, European System for Cardiac Operative Risk Evaluation II (EuroSCORE II): 19 ± 13, New York Heart Association (NYHA) class: ≥3 in all cases) have undergone LVOT reconstruction with a Sorin Pericarbon Freedom stentless bioprosthesis. Seven patients (17.5%) were in septic or cardiogenic shock preoperatively, and 18 patients (45%) suffered from moderate or severe aortic regurgitation. Eleven patients (27.5%) experienced preoperative systemic embolizations. Thirty-six cases (90%) were valve redos and 9 patients (22.5%) had concomitant procedures. The mean follow-up was 26 ± 25 months. RESULTS One patient (2.5%) died early (<30 days) and another 3 patients never discharged died due to multiorgan failure and septic shock. Actuarial survival rate was 85 ± 6% at 1 year, and 76 ± 8% at 3 and 5 years, respectively. Twelve patients (30%) required pacemaker implantation because of atrioventricular block and 20 patients (50%) developed or showed a progression of renal failure. One patient (2.5%) had an endocarditis relapse, and 1 (2.5%) showed a mild paraprosthetic aortic leak. No patient needed reoperation. At the last echocardiographic evaluation, mean gradient, peak gradient and left ventricular ejection fraction were 7.9 ± 5.0 mmHg, 15.1 ± 7.2 mmHg and 63.3 ± 9.3%, respectively. CONCLUSIONS The Sorin Pericarbon Freedom stentless prosthesis, with the modified technique herein described, seems to be a good option in most of cases of destructive aortic valve endocarditis. It is promptly available in different sizes, easy to implant and, due to its pericardial inflow skirt, ideal for extensive reconstruction of the LVOT with good haemodynamic performance and low risk of relapse.
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Affiliation(s)
- Sandro Sponga
- Cardiothoracic Department, University Hospital of Udine, Udine, Italy
| | - Cristian Daffarra
- Cardiothoracic Department, University Hospital of Udine, Udine, Italy
| | - Daisy Pavoni
- Cardiothoracic Department, University Hospital of Udine, Udine, Italy
| | - Igor Vendramin
- Cardiothoracic Department, University Hospital of Udine, Udine, Italy
| | - Enzo Mazzaro
- Cardiothoracic Department, University Hospital of Udine, Udine, Italy
| | - Daniela Piani
- Cardiothoracic Department, University Hospital of Udine, Udine, Italy
| | - Chiara Nalli
- Cardiothoracic Department, University Hospital of Udine, Udine, Italy
| | - Gaetano Nucifora
- Cardiothoracic Department, University Hospital of Udine, Udine, Italy
| | - Ugolino Livi
- Cardiothoracic Department, University Hospital of Udine, Udine, Italy
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