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Essa Y, Said SM. Diagnostic work-up and current management strategies for infective endocarditis in the pediatric population. Indian J Thorac Cardiovasc Surg 2024; 40:29-39. [PMID: 38827553 PMCID: PMC11139826 DOI: 10.1007/s12055-024-01700-1] [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: 10/22/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 06/04/2024] Open
Abstract
Infective endocarditis (IE) remains a serious disease that is associated with significant morbidity and mortality, and despite the significant advances that have been made in understanding the disease process in past decades, its incidence appears to be on the rise recently. Endocarditis in children is no longer a rare occurrence. This appeared to be related to a combination of the improved survival of children with congenital heart diseases (CHDs), increase use of intracardiac protheses, and catheter-related interventions. The American Heart Association (AHA) 2007 guidelines reduced the recommendations for use of prophylactic antibiotics in those with CHDs which occurred despite the noticeable increase in endocarditis incidence around that time. In general, the recommendations for managing children with IE are derived from the adults' guidelines, and the evidence-base is lacking in many clinical scenarios. Understanding the epidemiology, clinical presentations, microbiology, and outcomes of different management strategies for endocarditis is needed to have a clear and optimal plan for these children. In the current narrative review, we discuss IE in the pediatric population in terms of etiology, predisposing factors, and different treatment strategies for this unique population.
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Affiliation(s)
- Yasin Essa
- Department of Surgery, Division of Pediatric and Adult Congenital Cardiac Surgery, Maria Fareri Children’s Hospital, Westchester Medical Center, 100 Woods Road, Valhalla, NY 10595 USA
| | - Sameh M. Said
- Department of Surgery, Division of Pediatric and Adult Congenital Cardiac Surgery, Maria Fareri Children’s Hospital, Westchester Medical Center, 100 Woods Road, Valhalla, NY 10595 USA
- Department of Cardiothoracic Surgery, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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2
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Arjomandi Rad A, Zubarevich A, Osswald A, Vardanyan R, Magouliotis DE, Ansaripour A, Kourliouros A, Sá MP, Rassaf T, Ruhparwar A, Sardari Nia P, Athanasiou T, Weymann A. The Surgical Treatment of Infective Endocarditis: A Comprehensive Review. Diagnostics (Basel) 2024; 14:464. [PMID: 38472937 DOI: 10.3390/diagnostics14050464] [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: 12/19/2023] [Revised: 02/08/2024] [Accepted: 02/18/2024] [Indexed: 03/14/2024] Open
Abstract
Infective endocarditis (IE) is a severe cardiac complication with high mortality rates, especially when surgical intervention is delayed or absent. This review addresses the expanding role of surgery in managing IE, focusing on the variation in surgical treatment rates, the impact of patient demographics, and the effectiveness of different surgical approaches. Despite varying global data, a notable increase in surgical interventions for IE is evident, with over 50% of patients undergoing surgery in tertiary centres. This review synthesizes information from focused literature searches up to July 2023, covering preoperative to postoperative considerations and surgical strategies for IE. Key preoperative concerns include accurate diagnosis, appropriate antimicrobial treatment, and the timing of surgery, which is particularly crucial for patients with heart failure or at risk of embolism. Surgical approaches vary based on valve involvement, with mitral valve repair showing promising outcomes compared to replacement. Aortic valve surgery, traditionally favouring replacement, now includes repair as a viable option. Emerging techniques such as sutureless valves and aortic homografts are explored, highlighting their potential advantages in specific IE cases. The review also delves into high-risk groups like intravenous drug users and the elderly, emphasizing the need for tailored surgical strategies. With an increasing number of patients presenting with prosthetic valve endocarditis and device-related IE, the review underscores the importance of comprehensive management strategies encompassing surgical and medical interventions. Overall, this review provides a comprehensive overview of current evidence in the surgical management of IE, highlighting the necessity of a multidisciplinary approach and ongoing research to optimize patient outcomes.
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Affiliation(s)
- Arian Arjomandi Rad
- Medical Sciences Division, University of Oxford, Oxford OX3 9DU, UK
- Department of Surgery and Cancer, Imperial College London, London SW7 5NH, UK
- Department of Cardiothoracic Surgery, Maastricht University Medical Centre, 6229 HX Maastricht, The Netherlands
| | - Alina Zubarevich
- Department of Cardiothoracic, Transplant and Vascular Surgery, Hannover Medical School, 30625 Hannover, Germany
| | - Anja Osswald
- Department of Cardiothoracic, Transplant and Vascular Surgery, Hannover Medical School, 30625 Hannover, Germany
| | - Robert Vardanyan
- Department of Surgery and Cancer, Imperial College London, London SW7 5NH, UK
| | | | - Ali Ansaripour
- Department of Cardiothoracic Surgery, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Antonios Kourliouros
- Department of Cardiothoracic Surgery, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Michel Pompeu Sá
- Department of Cardiothoracic Surgery, UPMC Heart and Vascular Institute, University of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Tienush Rassaf
- Department of Cardiology, West German Heart and Vascular Center Essen, University Hospital of Essen, University Duisburg-Essen, 45138 Essen, Germany
| | - Arjang Ruhparwar
- Department of Cardiothoracic, Transplant and Vascular Surgery, Hannover Medical School, 30625 Hannover, Germany
| | - Peyman Sardari Nia
- Department of Cardiothoracic Surgery, Maastricht University Medical Centre, 6229 HX Maastricht, The Netherlands
| | - Thanos Athanasiou
- Department of Surgery and Cancer, Imperial College London, London SW7 5NH, UK
| | - Alexander Weymann
- Department of Cardiothoracic, Transplant and Vascular Surgery, Hannover Medical School, 30625 Hannover, Germany
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Nappi F, Avtaar Singh SS, Jitendra V, Fiore A. Bridging Molecular and Clinical Sciences to Achieve the Best Treatment of Enterococcus faecalis Endocarditis. Microorganisms 2023; 11:2604. [PMID: 37894262 PMCID: PMC10609379 DOI: 10.3390/microorganisms11102604] [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: 08/01/2023] [Revised: 09/14/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
Enterococcus faecalis (E. faecalis) is a commensal bacterium that causes various infections in surgical sites, the urinary tract, and blood. The bacterium is becoming a significant concern because it tends to affect the elderly population, which has a high prevalence of undiagnosed degenerative valvular disease and is often subjected to invasive procedures and implanted medical devices. The bacterium's actions are influenced by specific characteristics like pili activity and biofilm formation. This resistance significantly impedes the effectiveness of numerous antibiotic therapies, particularly in cases of endocarditis. While current guidelines recommend antimicrobial therapy, the emergence of resistant strains has introduced complexity in managing these patients, especially with the increasing use of transcatheter therapies for those who are not suitable for surgery. Presentations of the condition are often varied and associated with generalised symptoms, which may pose a diagnostic challenge. We share our encounter with a case study that concerns an octogenarian who had a TAVI valve and developed endocarditis. We also conducted a literature review to identify the essential treatment algorithms for such cases.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint-Denis, France
| | | | - Vikram Jitendra
- Department of Cardiothoracic Surgery, Aberdeen Royal Infirmary, Aberdeen AB25 2ZN, UK;
| | - Antonio Fiore
- Department of Cardiac Surgery, Hôpitaux Universitaires Henri Mondor, Assistance Publique-Hôpitaux de Paris, 94000 Creteil, France;
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Nappi F, Schoell T, Spadaccio C, Acar C, da Costa FDA. A Literature Review on the Use of Aortic Allografts in Modern Cardiac Surgery for the Treatment of Infective Endocarditis: Is There Clear Evidence or Is It Merely a Perception? Life (Basel) 2023; 13:1980. [PMID: 37895362 PMCID: PMC10608498 DOI: 10.3390/life13101980] [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: 08/21/2023] [Revised: 09/18/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
Infective valve endocarditis is caused by different pathogens and 60% of those involve the aortic valve with valve failure. Although S. aureus is recognized as the most frequently isolated causative bacterium associated with IE in high-income countries, Gram-positive cocci nevertheless play a crucial role in promoting infection in relation to their adhesive matrix molecules. The presence of pili on the surface of Gram-positive bacteria such as in different strains of Enterococcus faecalis and Streptococcus spp., grants these causative pathogens a great offensive capacity due to the formation of biofilms and resistance to antibiotics. The indications and timing of surgery in endocarditis are debated as well as the choice of the ideal valve substitute to replace the diseased valve(s) when repair is not possible. We reviewed the literature and elaborated a systematic approach to endocarditis management based on clinical, microbiological, and anatomopathological variables known to affect postoperative outcomes with the aim to stratify the patients and orient decision making. From this review emerges significant findings on the risk of infection in the allograft used in patients with endocarditis and no endocarditis etiology suggesting that the use of allografts has proved safety and effectiveness in patients with both pathologies.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint-Denis, France;
| | - Thibaut Schoell
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint-Denis, France;
| | - Cristiano Spadaccio
- Cardiothoracic Surgery, Lancashire Cardiac Center, Blackpool Victoria Hospital, Blackpool FY3 8NP, UK;
| | - Christophe Acar
- Department of Cardiothoracic Surgery, Hôpital Pitié-Salpêtrière, Boulevard de Hôpital 47-83, 75013 Paris, France;
| | - Francisco Diniz Affonso da Costa
- Department of Cardiovascular Surgery, Instituto de Neurologia e Cardiologia de Curitiba—INC Cardio, Curitiba 81210-310, Parana, Brazil;
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Iaccarino A, Barbone A, Basciu A, Cuko E, Droandi G, Galbiati D, Romano G, Citterio E, Fumero A, Scarfò I, Manzo R, La Canna G, Torracca L. Surgical Challenges in Infective Endocarditis: State of the Art. J Clin Med 2023; 12:5891. [PMID: 37762834 PMCID: PMC10532218 DOI: 10.3390/jcm12185891] [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: 07/20/2023] [Revised: 08/24/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
Infective endocarditis (IE) is still a life-threatening disease with frequent lethal outcomes despite the profound changes in its clinical, microbiological, imaging, and therapeutic profiles. Nowadays, the scenario for IE has changed since rheumatic fever has declined, but on the other hand, multiple aspects, such as elderly populations, cardiovascular device implantation procedures, and better use of multiple imaging modalities and multidisciplinary care, have increased, leading to escalations in diagnosis. Since the ESC and AHA Guidelines have been released, specific aspects of diagnostic and therapeutic management have been clarified to provide better and faster diagnosis and prognosis. Surgical treatment is required in approximately half of patients with IE in order to avoid progressive heart failure, irreversible structural damage in the case of uncontrolled infection, and the prevention of embolism. The timing of surgery has been one of the main aspects discussed, identifying cases in which surgery needs to be performed on an emergency (within 24 h) or urgent (within 7 days) basis, irrespective of the duration of antibiotic treatment, or cases where surgery can be postponed to allow a brief period of antibiotic treatment under careful clinical and echocardiographic observation. Mainly, guidelines put emphasis on the importance of an endocarditis team in the handling of systemic complications and how they affect the timing of surgery and perioperative management. Neurological complications, acute renal failure, splenic or musculoskeletal manifestations, or infections determined by multiresistant microorganisms or fungi can affect long-term prognosis and survival. Not to be outdone, anatomical and surgical factors, such as the presence of native or prosthetic valve endocarditis, a repair strategy when feasible, anatomical extension and disruption in the case of an annular abscess (mitral valve annulus, aortic mitral curtain, aortic root, and annulus), and the choice of prosthesis and conduits, can be equally crucial. It can be hard for surgeons to maneuver between correct pre-operative planning and facing unexpected obstacles during intraoperative management. The aim of this review is to provide an overview and analysis of a broad spectrum of specific surgical scenarios and how their challenging management can be essential to ensure better outcomes and prognoses.
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Affiliation(s)
- Alessandra Iaccarino
- Cardiovascular Department, UO of Cardiac Surgery of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (A.B.); (A.B.); (E.C.); (G.D.); (D.G.); (G.R.); (E.C.); (A.F.); (L.T.)
| | - Alessandro Barbone
- Cardiovascular Department, UO of Cardiac Surgery of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (A.B.); (A.B.); (E.C.); (G.D.); (D.G.); (G.R.); (E.C.); (A.F.); (L.T.)
| | - Alessio Basciu
- Cardiovascular Department, UO of Cardiac Surgery of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (A.B.); (A.B.); (E.C.); (G.D.); (D.G.); (G.R.); (E.C.); (A.F.); (L.T.)
| | - Enea Cuko
- Cardiovascular Department, UO of Cardiac Surgery of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (A.B.); (A.B.); (E.C.); (G.D.); (D.G.); (G.R.); (E.C.); (A.F.); (L.T.)
| | - Ginevra Droandi
- Cardiovascular Department, UO of Cardiac Surgery of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (A.B.); (A.B.); (E.C.); (G.D.); (D.G.); (G.R.); (E.C.); (A.F.); (L.T.)
| | - Denise Galbiati
- Cardiovascular Department, UO of Cardiac Surgery of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (A.B.); (A.B.); (E.C.); (G.D.); (D.G.); (G.R.); (E.C.); (A.F.); (L.T.)
| | - Giorgio Romano
- Cardiovascular Department, UO of Cardiac Surgery of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (A.B.); (A.B.); (E.C.); (G.D.); (D.G.); (G.R.); (E.C.); (A.F.); (L.T.)
| | - Enrico Citterio
- Cardiovascular Department, UO of Cardiac Surgery of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (A.B.); (A.B.); (E.C.); (G.D.); (D.G.); (G.R.); (E.C.); (A.F.); (L.T.)
| | - Andrea Fumero
- Cardiovascular Department, UO of Cardiac Surgery of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (A.B.); (A.B.); (E.C.); (G.D.); (D.G.); (G.R.); (E.C.); (A.F.); (L.T.)
| | - Iside Scarfò
- Cardiovascular Department, Applied Diagnostic Echocardiography of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (I.S.); (R.M.); (G.L.C.)
| | - Rossella Manzo
- Cardiovascular Department, Applied Diagnostic Echocardiography of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (I.S.); (R.M.); (G.L.C.)
| | - Giovanni La Canna
- Cardiovascular Department, Applied Diagnostic Echocardiography of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (I.S.); (R.M.); (G.L.C.)
| | - Lucia Torracca
- Cardiovascular Department, UO of Cardiac Surgery of IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy; (A.B.); (A.B.); (E.C.); (G.D.); (D.G.); (G.R.); (E.C.); (A.F.); (L.T.)
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Yoshida S, Manerikar A, Zhu M, Mehta C. Successful surgical treatment of Stanford type A aortic dissection due to Salmonella aortitis. J Cardiothorac Surg 2023; 18:233. [PMID: 37452382 PMCID: PMC10349517 DOI: 10.1186/s13019-023-02318-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 06/28/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND Salmonella spp. cause infectious aortitis through the hematogenous spread of an intestinal Salmonella infection. Salmonella aortitis can result in extensive tissue damage in the aorta leading to complications including dissection, abscess formation, pseudoaneurysms, and rupture, which require early diagnosis and treatment with both surgery and antibiotic therapy. CASE PRESENTATION We report a case of Salmonella aortitis complicated by Stanford type A aortic dissection. A 62-year-old man with a history of heroin use presented with chest pain, epigastric pain and vomiting. The computed tomography scan showed Stanford type A aortic dissection without malperfusion. At the time of surgery, an aortic dissection with purulent fluid and contained rupture was noted in the ascending aorta. Fluid culture was consistent with Salmonella. A composite valve-graft conduit aortic root replacement with ascending aorta and hemiarch replacement was performed. The patient recovered well and was discharged on long-term antibiotics. CONCLUSIONS This rare case of a Stanford type A aortic dissection with contained rupture due to Salmonella aortitis was successfully treated with emergent surgery and antibiotic therapy.
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Affiliation(s)
- Shohei Yoshida
- Division of Cardiac Surgery, Bluhm Cardiovascular Institute, Northwestern University Feinberg School of Medicine and Northwestern Memorial Hospital, 676 North St. Clair, Suite 7-300, Chicago, IL, 60611, USA
| | - Adwaiy Manerikar
- Division of Cardiac Surgery, Bluhm Cardiovascular Institute, Northwestern University Feinberg School of Medicine and Northwestern Memorial Hospital, 676 North St. Clair, Suite 7-300, Chicago, IL, 60611, USA
| | - Mengou Zhu
- Division of Internal Medicine, Northwestern University Feinberg School of Medicine and Northwestern Memorial Hospital, Chicago, IL, USA
| | - Christopher Mehta
- Division of Cardiac Surgery, Bluhm Cardiovascular Institute, Northwestern University Feinberg School of Medicine and Northwestern Memorial Hospital, 676 North St. Clair, Suite 7-300, Chicago, IL, 60611, USA.
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Nappi F, Avtaar Singh SS. Host-Bacterium Interaction Mechanisms in Staphylococcus aureus Endocarditis: A Systematic Review. Int J Mol Sci 2023; 24:11068. [PMID: 37446247 DOI: 10.3390/ijms241311068] [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: 04/20/2023] [Revised: 06/21/2023] [Accepted: 07/02/2023] [Indexed: 07/15/2023] Open
Abstract
Staphylococci sp. are the most commonly associated pathogens in infective endocarditis, especially within high-income nations. This along with the increasing burden of healthcare, aging populations, and the protracted infection courses, contribute to a significant challenge for healthcare systems. A systematic review was conducted using relevant search criteria from PubMed, Ovid's version of MEDLINE, and EMBASE, and data were tabulated from randomized controlled trials (RCT), observational cohort studies, meta-analysis, and basic research articles. The review was registered with the OSF register of systematic reviews and followed the PRISMA reporting guidelines. Thirty-five studies met the inclusion criteria and were included in the final systematic review. The role of Staphylococcus aureus and its interaction with the protective shield and host protection functions was identified and highlighted in several studies. The interaction between infective endocarditis pathogens, vascular endothelium, and blood constituents was also explored, giving rise to the potential use of antiplatelets as preventative and/or curative agents. Several factors allow Staphylococcus aureus infections to proliferate within the host with numerous promoting and perpetuating agents. The complex interaction with the hosts' innate immunity also potentiates its virulence. The goal of this study is to attain a better understanding on the molecular pathways involved in infective endocarditis supported by S. aureus and whether therapeutic avenues for the prevention and treatment of IE can be obtained. The use of antibiotic-treated allogeneic tissues have marked antibacterial action, thereby becoming the ideal substitute in native and prosthetic valvular infections. However, the development of effective vaccines against S. aureus still requires in-depth studies.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint-Denis, France
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Nappi F, Nenna A, Spadaccio C, Avtaar Singh SS, Almazil A, Acar C. The Use of the Cryopreserved Aortic Homograft for Aortic Valve Replacement: Is It Still an Option? J Cardiovasc Dev Dis 2023; 10:248. [PMID: 37367413 DOI: 10.3390/jcdd10060248] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 05/28/2023] [Accepted: 06/06/2023] [Indexed: 06/28/2023] Open
Abstract
The indications for cryopreserved allografts in aortic valve replacement are still debatable. We aim to identify factors influencing early and long-term durability of the aortic homograft and to define subgroups of patients with an improved long-term quality of life, survival, and freedom from structural valve degeneration (SVD). We evaluated our series of 210 patients who underwent allograft implantation with a retrospective cohort study design over a period of 20 years. Endpoints were overall mortality, cardiac mortality related to SVD, the incidence of SVD, reoperation, and a composite endpoint comprising major adverse cardiac and cerebrovascular events (MACCEs), which includes cardiac death both related and not related to SVD, subsequent aortic valve surgery, new or recurrent infection of implanted allograft, recurrent aortic regurgitation, rehospitalization for heart failure, an increase in New York Heart Association (NYHA) class of ≥1, or cerebrovascular events. The primary indication for surgery was endocarditis (48%), which was also a predisposing factor for increased cardiac mortality. Overall mortality was 32.4% with a 27% incidence of SVD and mortality associated with SVD of 13.8%. Reoperation occurred in 33.8% and MACCEs in 54.8%. Long-term NYHA functional class and echocardiographic parameters improved over time. Statistical analysis demonstrated that root replacement technique and adult age were protective factors for SVD. We found no statistically significant difference in the clinical outcomes analyzed between women of childbearing age who had children after surgery and the rest of the women. The cryopreserved allograft is still a valid option in aortic valve replacement, providing acceptable durability and clinical outcomes with optimal hemodynamic performance. SVD is influenced by the implantation technique. Women of childbearing age might have additional benefits from this procedure.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint Denis, France
| | - Antonio Nenna
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 00128 Roma, Italy
| | - Cristiano Spadaccio
- Cardiothoracic Surgery, Lancashire Cardiac Center, Blackpool Victoria Hospital, Blackpool FY3 8NP, UK
| | | | - Almothana Almazil
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint Denis, France
| | - Christophe Acar
- Department of Cardiothoracic Surgery, Hôpital Pitié-Salpêtrière, Boulevard de Hôpital 47-83, 75013 Paris, France
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Witten JC, Houghtaling PL, Shrestha NK, Gordon SM, Jaber W, Blackstone EH, Pettersson GB. Aortic allograft infection risk. J Thorac Cardiovasc Surg 2023; 165:1303-1315.e9. [PMID: 34366128 DOI: 10.1016/j.jtcvs.2021.04.086] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 04/14/2021] [Accepted: 04/21/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Intrinsic risk of infection of cryopreserved allograft aortic root replacements remains poorly understood despite their long history of use. The objective of this study was to determine this intrinsic risk of allograft infection and its risk factors when allografts are implanted for both nonendocarditis indications and infective endocarditis. METHODS From January 1987 to January 2017, 2042 patients received 2110 allograft aortic valves at a quaternary medical center, 1124 (53%) for nonendocarditis indications and 986 (47%) for endocarditis indications (670 [68%] prosthetic valve endocarditis). Staphylococcus aureus caused 193 of 949 cases of endocarditis (20%), 71 (7.3%) in persons who injected drugs. Periodic surveillance and cross-sectional follow-up achieved 85% of possible follow-up time. The primary end point was allograft infection in patients with nonendocarditis and endocarditis indications. Risk factors were identified by hazard function decomposition and machine learning. RESULTS During follow-up, 30 allografts (26 explanted) became infected in patients in the nonendocarditis group and 49 (41 explanted) in patients with endocarditis. At 20 years, the probability of allograft infection was 5.6% in patients in the nonendocarditis group and 14% in patients with endocarditis. Risk factors for allograft infection in patients in the nonendocarditis group were younger patient age and older donor age. Risk factors for allograft infection in patients with endocarditis were earlier implant year, injection drug use, and younger age. In patients with endocarditis, 18% of allograft infections were caused by the original organism. CONCLUSIONS The low infection rates, both in patients without and with endocarditis, support continued use of allografts in the modern era, in particular for the treatment of invasive endocarditis of the aortic root.
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Affiliation(s)
- James C Witten
- Department of Thoracic and Cardiovascular Surgery, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
| | - Penny L Houghtaling
- Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Nabin K Shrestha
- Department of Infectious Disease, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio
| | - Steven M Gordon
- Department of Infectious Disease, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio
| | - Wael Jaber
- Department of Cardiovascular Medicine, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
| | - Eugene H Blackstone
- Department of Thoracic and Cardiovascular Surgery, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio; Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Gösta B Pettersson
- Department of Thoracic and Cardiovascular Surgery, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio.
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10
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Wu DM, Zhu MZL, Buratto E, Brizard CP, Konstantinov IE. Aortic valve surgery in children with infective endocarditis. Semin Thorac Cardiovasc Surg 2023:S1043-0679(23)00038-2. [PMID: 36898419 DOI: 10.1053/j.semtcvs.2023.02.004] [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: 01/15/2023] [Accepted: 02/23/2023] [Indexed: 03/12/2023]
Abstract
There is limited data on the outcomes of children who undergo surgery for aortic valve infective endocarditis (IE), and the optimal surgical approach remains controversial. We investigated the long-term outcomes of surgery for aortic valve IE in children, with a particular focus on the Ross procedure. A retrospective review of all children who underwent surgery for aortic valve IE was performed at a single institution. Between 1989 and 2020, 41 children underwent surgery for aortic valve IE, of whom 16 (39.0%) underwent valve repair, 13 (31.7%) underwent the Ross procedure, 9 (21.9%) underwent a homograft root replacement, and 3 (7.3%) underwent a mechanical valve replacement. Median age was 10.1 years (interquartile range [IQR], 5.4-14.1). The majority of children (82.9%, 34/41) had underlying congenital heart disease, while 39.0% (16/41) had previous heart surgery. Operative mortality was 0.0% (0/16) for repair, 15.4% (2/13) for the Ross procedure, 33.3% (3/9) for homograft root replacement, and 33.3% (1/3) for mechanical replacement. Survival at 10 years was 87.5% for repair, 74.1% for Ross, and 66.7% for homograft (p>0.05). Freedom from reoperation at 10 years was 30.8% for repair, 63.0% for Ross, and 26.3% for homograft (p=0.15 for Ross vs. repair, p=0.002 for Ross vs. homograft). Children undergoing surgery for aortic valve IE have acceptable long-term survival, although the need for long-term reintervention is significant. The Ross procedure appears to be the optimal choice when repair is not feasible.
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Affiliation(s)
- Damien M Wu
- Department of Cardiac Surgery, Royal Children's Hospital, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia; Murdoch Children's Research Institute, Melbourne, Australia
| | - Michael Z L Zhu
- Department of Cardiac Surgery, Royal Children's Hospital, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia; Murdoch Children's Research Institute, Melbourne, Australia
| | - Edward Buratto
- Department of Cardiac Surgery, Royal Children's Hospital, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia; Murdoch Children's Research Institute, Melbourne, Australia
| | - Christian P Brizard
- Department of Cardiac Surgery, Royal Children's Hospital, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia; Murdoch Children's Research Institute, Melbourne, Australia; Melbourne Children's Centre for Cardiovascular Genomics and Regenerative Medicine, Melbourne, Australia
| | - Igor E Konstantinov
- Department of Cardiac Surgery, Royal Children's Hospital, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia; Murdoch Children's Research Institute, Melbourne, Australia; Melbourne Children's Centre for Cardiovascular Genomics and Regenerative Medicine, Melbourne, Australia.
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11
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Skific M, Golemovic M, Safradin I, Duric Z, Biocina B, Golubic Cepulic B. Cryopreserved human heart valve allografts: a ten-year single centre experience. Cell Tissue Bank 2022; 24:401-416. [PMID: 36222968 PMCID: PMC9555264 DOI: 10.1007/s10561-022-10043-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/21/2022] [Indexed: 11/29/2022]
Abstract
This study provides an overview of tissue banking activities at the Croatian Cardiovascular Tissue Bank (CTB) during past ten years and presents the outcomes of cryopreserved heart valve allografts (CHAs) use in different patient groups. From June 2011 until December 2021, 75 heart donations were referred to CTB: 41 recipient of heart transplant (RHT), 32 donors after brain death (DBD) and 2 donors after circulatory death (DCD) donations. Processing resulted in 103 valves of which 65 met quality requirements for clinical use. Overall tissue discard rate was 37%. The most frequent reasons for discard were inadequate morphology (12%) in RHT donations and microbiological contamination (19%) in DBD donations. Altogether, 38 CHAs were transplanted to 36 patients. Recipients were divided in three groups; infective endocarditis (IE), non-infectious heart disease and congenital heart disease group. In the IE group, the 30-day, 1-year and 3-year survival was 71%, 53% and 47%, respectively. Freedom from re-operation due to all graft-related causes was 76% and due to structural valve deterioration 88%. There were no cases of graft reinfection. In the congenital heart disease group CHAs were predominantly (94%) used for right ventricular outflow tract reconstruction and 88% of patients recovered without graft-related complications. At present, the number of demands for CHAs at CTB considerably outweighs their availability.
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Affiliation(s)
- Marijana Skific
- Clinical Department of Transfusion Medicine and Transplantation Biology, University Hospital Centre Zagreb, Kispaticeva 12, 10000, Zagreb, Croatia.
| | - Mirna Golemovic
- Clinical Department of Transfusion Medicine and Transplantation Biology, University Hospital Centre Zagreb, Kispaticeva 12, 10000, Zagreb, Croatia
| | - Ivica Safradin
- Department of Cardiac Surgery, University Hospital Centre Zagreb, Kispaticeva 12, 10000, Zagreb, Croatia
| | - Zeljko Duric
- Department of Cardiac Surgery, University Hospital Centre Zagreb, Kispaticeva 12, 10000, Zagreb, Croatia
| | - Bojan Biocina
- Department of Cardiac Surgery, University Hospital Centre Zagreb, Kispaticeva 12, 10000, Zagreb, Croatia.,University of Zagreb School of Medicine, Salata 3, 10000, Zagreb, Croatia
| | - Branka Golubic Cepulic
- Clinical Department of Transfusion Medicine and Transplantation Biology, University Hospital Centre Zagreb, Kispaticeva 12, 10000, Zagreb, Croatia.,University of Zagreb School of Medicine, Salata 3, 10000, Zagreb, Croatia.,University of Applied Health Sciences, Mlinarska 38, 10000, Zagreb, Croatia.,University of Split, University Department of Health Studies, Rudera Boskovica 35, 21000, Split, Croatia
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12
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Nappi F, Avtaar Singh SS, Nappi P, Fiore A. Biomechanics of Transcatheter Aortic Valve Implant. Bioengineering (Basel) 2022; 9:bioengineering9070299. [PMID: 35877350 PMCID: PMC9312295 DOI: 10.3390/bioengineering9070299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 11/16/2022] Open
Abstract
Transcatheter aortic valve implantation (TAVI) has grown exponentially within the cardiology and cardiac surgical spheres. It has now become a routine approach for treating aortic stenosis. Several concerns have been raised about TAVI in comparison to conventional surgical aortic valve replacement (SAVR). The primary concerns regard the longevity of the valves. Several factors have been identified which may predict poor outcomes following TAVI. To this end, the lesser-used finite element analysis (FEA) was used to quantify the properties of calcifications which affect TAVI valves. This method can also be used in conjunction with other integrated software to ascertain the functionality of these valves. Other imaging modalities such as multi-detector row computed tomography (MDCT) are now widely available, which can accurately size aortic valve annuli. This may help reduce the incidence of paravalvular leaks and regurgitation which may necessitate further intervention. Structural valve degeneration (SVD) remains a key factor, with varying results from current studies. The true incidence of SVD in TAVI compared to SAVR remains unclear due to the lack of long-term data. It is now widely accepted that both are part of the armamentarium and are not mutually exclusive. Decision making in terms of appropriate interventions should be undertaken via shared decision making involving heart teams.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint-Denis, France
- Correspondence: ; Tel.: +33-149334104; Fax: +33-149334119
| | | | - Pierluigi Nappi
- Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy;
| | - Antonio Fiore
- Department of Cardiac Surgery, Hôpitaux Universitaires Henri Mondor, Assistance Publique-Hôpitaux de Paris, 94000 Creteil, France;
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13
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Interdisciplinary Methods for Zoonotic Tissue Acellularization for Natural Heart Valve Substitute of Biomimetic Materials. MATERIALS 2022; 15:ma15072594. [PMID: 35407927 PMCID: PMC9000896 DOI: 10.3390/ma15072594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/14/2022] [Accepted: 03/29/2022] [Indexed: 02/04/2023]
Abstract
The goal of this work was to create a bioactive tissue-based scaffold using multi-disciplinary engineering materials and tissue engineering techniques. Materials & methods: Physical techniques such as direct laser interference lithography and proton radiation were selected as alternative methods of enzymatic and chemical decellularization to remove cells from a tissue without degradation of the extracellular matrix nor its protein structure. This study was an attempt to prepare a functional scaffold for cell culture from tissue of animal origin using new physical methods that have not been considered before. The work was carried out under full control of the histological and molecular analysis. Results & conclusions: The most important finding was that the physical methods used to obtain the decellularized tissue scaffold differed in the efficiency of cell removal from the tissue in favour of the laser method. Both the laser method and the proton method exhibited a destructive effect on tissue structure and the genetic material in cell nuclei. This effect was visible on histology images as blurred areas within the cell nucleus. The finite element 3D simulation of decellularization process of the three-layer tissue of animal origin sample reflected well the mechanical response of tissue described by hyperelastic material models and provided results comparable to the experimental ones.
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14
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Huyan Y, Chang Y, Song J. Application of Homograft Valved Conduit in Cardiac Surgery. Front Cardiovasc Med 2021; 8:740871. [PMID: 34712711 PMCID: PMC8545902 DOI: 10.3389/fcvm.2021.740871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/20/2021] [Indexed: 11/13/2022] Open
Abstract
Valved conduits often correct the blood flow of congenital heart disease by connecting the right ventricle to the pulmonary artery (RV-PA). The homograft valved conduit was invented in the 1960s, but its wide application is limited due to the lack of effective sterilization and preservation methods. Modern cryopreservation prolongs the preservation time of homograft valved conduit, which makes it become the most important treatment at present, and is widely used in Ross and other operations. However, homograft valved conduit has limited biocompatibility and durability and lacks any additional growth capacity. Therefore, decellularized valved conduit has been proposed as an effective improved method, which can reduce immune response and calcification, and has potential growth ability. In addition, as a possible substitute, commercial xenograft valved conduit has certain advantages in clinical application, and tissue engineering artificial valved conduit needs to be further studied.
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Affiliation(s)
- Yige Huyan
- The Cardiomyopathy Research Group at Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuan Chang
- The Cardiomyopathy Research Group at Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiangping Song
- The Cardiomyopathy Research Group at Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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15
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The New Challenge for Heart Endocarditis: From Conventional Prosthesis to New Devices and Platforms for the Treatment of Structural Heart Disease. BIOMED RESEARCH INTERNATIONAL 2021; 2021:7302165. [PMID: 34222484 PMCID: PMC8219429 DOI: 10.1155/2021/7302165] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 06/02/2021] [Indexed: 01/07/2023]
Abstract
Infective endocarditis is a sinister condition with considerable morbidity and mortality. Its relevance in the current era is compounded by the increased use of implanted devices such as replacement valves or cardiac implantable electronic devices. These infections are caused by multiple different bacteria with different virulence, pathogenicity, and antimicrobial resistance. Unlike in native endocarditis, the presence of foreign tissue permits sustenance by inflammatory and thrombotic processes as the artificial surfaces promote inflammatory responses and hypercoagulability. Prevention of these infections has been suggested with the use of homografts in combination with antibiotics. Others have attempted to use "low fouling coats" with little clinical success thus far. The use of antibiotic prophylaxis plays a pivotal part in reducing the incidence of prosthesis-related endocarditis. This remains especially crucial with the increasing use of transcatheter heart valve therapies. The widespread use of cardiac implantable electronic devices such as permanent pacemakers, implantable cardioverter defibrillators, and cardiac resynchronization therapy devices has also heralded a noticeable increase in cases of infectious endocarditis affecting complex equipment which can be difficult to treat. Multimodality strategies are needed with input from surgeons and cardiologists to ensure treatment is both prompt and successful, tailored to the individual needs of the patients.
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16
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Witten JC, Durbak E, Houghtaling PL, Unai S, Roselli EE, Bakaeen FG, Johnston DR, Svensson LG, Jaber W, Blackstone EH, Pettersson GB. Performance and Durability of Cryopreserved Allograft Aortic Valve Replacements. Ann Thorac Surg 2021; 111:1893-1900. [DOI: 10.1016/j.athoracsur.2020.07.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 07/02/2020] [Accepted: 07/20/2020] [Indexed: 10/23/2022]
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17
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Percutaneous versus Surgical Intervention for Severe Aortic Valve Stenosis: A Systematic Review. BIOMED RESEARCH INTERNATIONAL 2021; 2021:3973924. [PMID: 34136565 PMCID: PMC8175165 DOI: 10.1155/2021/3973924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/04/2021] [Accepted: 05/14/2021] [Indexed: 11/18/2022]
Abstract
Aortic stenosis is a disease that is increasing in prevalence and manifests as decreased cardiac output, which if left untreated can result in heart failure and ultimately death. It is primarily a disease of the elderly who often have multiple comorbidities. The advent of transcatheter aortic valve therapies has changed the way we treat these conditions. However, long-term results of these therapies remain uncertain. Recently, there has been an increasing number of studies examining the role of both surgical aortic valve replacement and transcatheter aortic valve replacement. We therefore performed a systematic review using Ovid MEDLINE, Ovid Embase, and the Cochrane Library. Two investigators searched papers published between January 1, 2007, and to date using the following terms: "aortic valve stenosis," "aortic valve operation," and "transcatheter aortic valve therapy." Both strategies in aortic stenosis treatment highlighted specific indications alongside the pitfalls such as structural valve degeneration and valve thrombosis which have a bearing on clinical outcomes. We propose some recommendations to help clinicians in the decision-making process as technological improvements make both surgical and transcatheter therapies viable options for patients with aortic stenosis. Finally, we assess the role of finite element analysis in patient selection for aortic valve replacement. THVT and AVR-S are both useful tools in the armamentarium against aortic stenosis. The decision between the two treatment strategies should be best guided by a strong robust evidence base, ideally with a long-term follow-up. This is best performed by the heart team with the patient as the center of the discussion.
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18
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Benedetto U, Spadaccio C, Gentile F, Moon MR, Nappi F. A narrative review of early surgery versus conventional treatment for infective endocarditis: do we have an answer? ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1626. [PMID: 33437825 PMCID: PMC7791236 DOI: 10.21037/atm-20-3880] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The most appropriate strategy and timing for surgery in infective endocarditis (IE) remains an argument of debate. Despite some authors promote the adoption of an early surgical approach (within 48 hours) to limit mortality and complications, no robust randomized trials are available on this argument and the evidence on this subject remain at the "expert opinion" level. Additionally, the different messages promulgated by the American and European guidelines contributed to fuel confusion regarding the relative priority of the surgical over medical therapy in IE. The European Society of Cardiology (ESC) guidelines individuates three level of urgency: emergency surgery, to be performed within 24 hours; urgent surgery, recommended within a few days; elective surgery to be performed after 1-2 weeks of antibiotic therapy. Urgent surgery is recommended for most cases of IE. In the American Heart Association (AHA)'s guidelines define early surgery as "during the initial hospitalization and before completion of a full course of antibiotics." Some of the available evidences showed that are no proven benefits in delaying surgery if a definite diagnosis of IE has been established. However, this argument is controversial across the literature and several factors including the center specific experience can play a role in decision-making. In this review the latest evidences on IE clinical and surgical characteristics along with the current studies on the adoption of an early surgical approach are analyzed to clarify whether enough evidence is available to inform an update of the guidelines.
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Affiliation(s)
- Umberto Benedetto
- Department of Cardiothoracic Surgery, Bristol Heart Institute, University of Bristol, Bristol, UK
| | - Cristiano Spadaccio
- Department of Cardiac Surgery, Golden Jubilee National Hospital, Glasgow, UK.,Institute of Cardiovascular and Medical Sciences, University of Glasgow, UK
| | | | - Marc R Moon
- Department of Cardiac Thoracic Surgery, Washington University School of Medicine, Saint Louis, MO, USA
| | - Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord de Saint-Denis, Paris, France
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19
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Pollari F, Spadaccio C, Cuomo M, Chello M, Nenna A, Fischlein T, Nappi F. Sharing of decision-making for infective endocarditis surgery: a narrative review of clinical and ethical implications. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1624. [PMID: 33437823 PMCID: PMC7791252 DOI: 10.21037/atm-20-4626] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Infective endocarditis (IE) is nowadays one of the most challenging disease in cardiac surgery because of its multifaceted clinical and anatomical presentation. Despite the many clinical and surgical advances achieved in the past 60 years, there is a lack of evidence regarding the ideal strategy. The present review aims to investigate and highlight two main novel concepts for the decision-making of the best substitute. Firstly, the concept of an "endocarditis team": a coordinated multidisciplinary effort in the diagnostic work-up, especially in conditions of high risk of embolization or clinical deterioration. A good "endocarditis team" has the role to overcome such problem, in order to ensure a prompt and balanced strategy. Secondly, which ethical considerations are required to drive the choice of valvular substitute. The choice of best valve substitute is a relevant issue of debate, not only with operative but also prognostic and accordingly ethical aftermaths. Many different solutions have been developed to substitute the infected valve. Among these: mechanical prosthesis (MP), biological stented prosthesis (BP), sutureless bioprosthesis and cryopreserved homografts (CHs). Patients need to be informed in detail about the technical issues pertaining the use of these valve substitute. We will discuss the evidences regarding the risk of recurrent infections or future potentially severe calcification of aortic homograft valve and wall (in other words, the failure of the homograft) and the difficulties in managing the reoperation.
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Affiliation(s)
- Francesco Pollari
- Department of Cardiac Surgery, Klinikum Nürnberg-Paracelsus Medical University, Nuremberg, Germany
| | - Cristiano Spadaccio
- Department of Cardiac Surgery, Golden Jubilee National Hospital, Glasgow, UK.,Institute of Cardiovascular and Medical Sciences, University of Glasgow, UK
| | - Michela Cuomo
- Division of Pediatric Cardiac Surgery, University of Erlangen, Erlangen, Germany
| | - Massimo Chello
- Department of Cardiovascular Surgery, University Campus Bio-Medico of Rome, Rome, Italy
| | - Antonio Nenna
- Department of Cardiovascular Surgery, University Campus Bio-Medico of Rome, Rome, Italy
| | - Theodor Fischlein
- Department of Cardiac Surgery, Klinikum Nürnberg-Paracelsus Medical University, Nuremberg, Germany
| | - Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord de Saint-Denis, Paris, France
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20
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Nappi F, Spadaccio C, Moon MR. A management framework for left sided endocarditis: a narrative review. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1627. [PMID: 33437826 PMCID: PMC7791223 DOI: 10.21037/atm-20-4439] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Left sided endocarditis (LSE) can include the entirety or portion of mitral and/or aortic valve and the structures in their anatomical contiguity and represent a significant portion of emergency surgical activity. Literature and guidelines on the management of LSE relies mainly on observational studies given the difficulty in designing randomized trials in emergency settings. Heart teams (HT) are often called in to difficult decisions on the most appropriate strategy to adopted in case of LSE. Decision-making should take into account the localization and the extension of the infection, patient preoperative status and comorbidities, presence of a previous valve prosthesis and best timing for surgery. Despite evidence suggests that early surgery may improve survival in patients with complicated infective endocarditis (IE), an increased risk of recurrence and postoperative valvular dysfunctions has been reported. The most important factors associated with long-term outcomes are preoperative multiorgan failure, prosthetic mechanical valve IE, vegetation size ≥15 mm, and timing of surgical treatment. Importantly, up to one third of potential candidates do not undergo surgery and these patients experience extremely high mortality rates. Another important point regards the choice of the optimal valve substitute to be used according to the different clinical situation. The lack of RCT in this field and the difficulty to design this type of studies in the case of non-elective conditions further complicates the possibility to achieve a univocal consensus on the best strategy to be adopted in each form of LSE and further validation studies are needed. On the basis of the current evidences a decisional algorithm is proposed summarizing all the crucial aspects in the management of LSE.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord de Saint-Denis, Paris, France
| | - Cristiano Spadaccio
- Department of Cardiac Surgery, Golden Jubilee National Hospital, Glasgow, UK.,Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Marc R Moon
- Department of Cardiac Thoracic Surgery, Washington University School of Medicine, St Louis, Missouri, USA
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21
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Nappi F, Avtaar Singh SS, Timofeeva I. Learning From Controversy: Contemporary Surgical Management of Aortic Valve Endocarditis. CLINICAL MEDICINE INSIGHTS-CARDIOLOGY 2020; 14:1179546820960729. [PMID: 33088184 PMCID: PMC7545763 DOI: 10.1177/1179546820960729] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 08/30/2020] [Indexed: 12/27/2022]
Abstract
Aortic valve replacement is the commonest cardiac surgical operation performed worldwide for infective endocarditis (IE). Long-term durability and avoidance of infection relapse are goals of the procedure. However, no detailed guidelines on prosthesis selection and surgical strategies guided by the comprehensive evaluation of the extension of the infection and its microbiological characteristics, clinical profile of the patient, and risk of infection recurrence are currently available. Conventional mechanical or stented xenografts are the preferred choice for localized aortic infection. However, in cases of complex IE with the involvement of the root or the aortomitral continuity, the use of homograft is suggested according to the surgeon and center experience. Homograft use should be counterbalanced against the risk of structural degeneration. Prosthetic bioroot or prosthetic valved conduit (mechanical and bioprosthetic) are also potentially suitable alternatives. Further development of preservation techniques enabling longer durability of allogenic substitutes is required. We evaluate the current evidence for the use of valve substitutes in aortic valve endocarditis and propose an evidence-based algorithm to guide the choice of therapy. We performed a systemic review to clarify the contemporary surgical management of aortic valve endocarditis.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord de Saint-Denis, Paris, France
| | - Sanjeet Singh Avtaar Singh
- Department of Cardiac Surgery, Golden Jubilee National Hospital, Glasgow, UK
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Irina Timofeeva
- Department of Imaging, Centre Cardiologique du Nord de Saint-Denis, Paris, France
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22
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Poulis N, Zaytseva P, Gähwiler EKN, Motta SE, Fioretta ES, Cesarovic N, Falk V, Hoerstrup SP, Emmert MY. Tissue engineered heart valves for transcatheter aortic valve implantation: current state, challenges, and future developments. Expert Rev Cardiovasc Ther 2020; 18:681-696. [DOI: 10.1080/14779072.2020.1792777] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Nikolaos Poulis
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
| | - Polina Zaytseva
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
| | - Eric K. N. Gähwiler
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
| | - Sarah E. Motta
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
- Wyss Translational Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
| | | | - Nikola Cesarovic
- Department of Cardiovascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
- Department of Health Sciences and Technology, Swiss Federal Institute of Technology in Zurich, Zurich, Switzerland
| | - Volkmar Falk
- Department of Cardiovascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
- Department of Health Sciences and Technology, Swiss Federal Institute of Technology in Zurich, Zurich, Switzerland
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany
- German Center of Cardiovascular Research, Partner Site Berlin, Berlin, Germany
| | - Simon P. Hoerstrup
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
- Wyss Translational Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
| | - Maximilian Y. Emmert
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
- Wyss Translational Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
- Department of Cardiovascular Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany
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23
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Nappi F, Singh SSA, Spadaccio C, Acar C. Revisiting the guidelines and choice the ideal substitute for aortic valve endocarditis. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:952. [PMID: 32953752 PMCID: PMC7475423 DOI: 10.21037/atm-20-1522] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Aortic valve replacement is the most commonly performed cardiac surgical operation worldwide for infective endocarditis (IE). Long-term durability and avoidance of infection relapse are the treatment goals. However, no detailed guidelines on prosthesis selection and surgical strategy are available. Management should be guided by a comprehensive evaluation of infection extension and its microbiological characteristics, the clinical profile of the patient and the risk of infection recurrence. We conducted a literature search of the PubMed database, EMBASE and Cochrane Library (through November 2019) for studies reporting to the use of biological substitutes in aortic valve endocarditis (AVE). Studies comparing long-term outcomes in the use of allogenic and autologous with conventional prostheses were investigated. Conventional mechanical or stented xenografts are the preferred choice for localized aortic infection. In cases of complex IE with the involvement of the root or the aorto-mitral continuity, the use of homografts are recommended, according to surgeon's and center experience. Homograft use needs to be balanced against the risk of structural degeneration. Prosthetic bioroot or prosthetic valved conduit with a mechanical or bioprosthetic valve are acceptable alternatives. The choice of aortic valves substitute and surgical strategy in IE is multifaceted. Principles guiding the selection of prosthesis and surgical approach rely on the long-term durability and the avoidance of infection relapse. A decisional algorithm considering the extension of the infection and its microbiological characteristics, the clinical profile of the patient and the risk of infection recurrence is provided. A multidisciplinary effort is required to achieve consistent outcomes.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, North Cardiological Center, Saint-Denis, Paris, France
| | - Sanjeet Singh Avtaar Singh
- Department of Cardiac Surgery, Golden Jubilee National Hospital, Glasgow, UK.,University of Glasgow Institute of Cardiovascular and Medical Sciences, Glasgow, UK
| | - Cristiano Spadaccio
- Department of Cardiac Surgery, Golden Jubilee National Hospital, Glasgow, UK.,University of Glasgow Institute of Cardiovascular and Medical Sciences, Glasgow, UK
| | - Christophe Acar
- Department of Cardiovascular Surgery, Heart Institute, la Pitie Salpetriere Hospital, Paris, France
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24
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Next-generation tissue-engineered heart valves with repair, remodelling and regeneration capacity. Nat Rev Cardiol 2020; 18:92-116. [PMID: 32908285 DOI: 10.1038/s41569-020-0422-8] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/09/2020] [Indexed: 02/06/2023]
Abstract
Valvular heart disease is a major cause of morbidity and mortality worldwide. Surgical valve repair or replacement has been the standard of care for patients with valvular heart disease for many decades, but transcatheter heart valve therapy has revolutionized the field in the past 15 years. However, despite the tremendous technical evolution of transcatheter heart valves, to date, the clinically available heart valve prostheses for surgical and transcatheter replacement have considerable limitations. The design of next-generation tissue-engineered heart valves (TEHVs) with repair, remodelling and regenerative capacity can address these limitations, and TEHVs could become a promising therapeutic alternative for patients with valvular disease. In this Review, we present a comprehensive overview of current clinically adopted heart valve replacement options, with a focus on transcatheter prostheses. We discuss the various concepts of heart valve tissue engineering underlying the design of next-generation TEHVs, focusing on off-the-shelf technologies. We also summarize the latest preclinical and clinical evidence for the use of these TEHVs and describe the current scientific, regulatory and clinical challenges associated with the safe and broad clinical translation of this technology.
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25
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Buratto E, Konstantinov IE. Aortic valve surgery in children. J Thorac Cardiovasc Surg 2020; 161:S0022-5223(20)32235-2. [PMID: 32891449 DOI: 10.1016/j.jtcvs.2020.06.145] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/01/2020] [Accepted: 06/04/2020] [Indexed: 01/18/2023]
Affiliation(s)
- Edward Buratto
- Department of Cardiac Surgery, Royal Children's Hospital, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia; Heart Research Group, Murdoch Children's Research Institute, Melbourne, Australia
| | - Igor E Konstantinov
- Department of Cardiac Surgery, Royal Children's Hospital, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia; Heart Research Group, Murdoch Children's Research Institute, Melbourne, Australia; Melbourne Children's Centre for Cardiovascular Genomics and Regenerative Medicine, Melbourne, Australia.
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Nappi F, Singh SSA, Lusini M, Nenna A, Gambardella I, Chello M. The use of allogenic and autologous tissue to treat aortic valve endocarditis. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:491. [PMID: 31700927 DOI: 10.21037/atm.2019.08.76] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The surgical treatment of aortic valve endocarditis (AVE) is generally performed using conventional mechanical or biological xenograft prosthesis, with limited use of aortic homograft (Ao-Homo) or pulmonary autograft (PA). Clinical evidence has demonstrated a clear contradiction between the proven benefits of Ao-Homo and PA in the context of infection and the very limited use of allogenic or autologous tissue in everyday clinical practice. This review aims to summarize the most recent and relevant literature in order to foster the scientific debate on the use of the use of allogenic and autologous tissue to treat AVE. The decisional process of the Heart Team should also include the preferences of the patient, his/her family, the general cardiologist or primary care physician. The use of allogenic or autologous valve substitute is beneficial if there is a high risk of recurrence of infection, avoiding extensive adhesiolysis and debridement of synthetic material. In any case, those procedures should be performed by highly trained centers to optimize outcomes.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord, Saint-Denis, Paris, France
| | | | - Mario Lusini
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Antonio Nenna
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
| | | | - Massimo Chello
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
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Nappi F, Nenna A, Petitti T, Spadaccio C, Gambardella I, Lusini M, Chello M, Acar C. Long-term outcome of cryopreserved allograft for aortic valve replacement. J Thorac Cardiovasc Surg 2018; 156:1357-1365.e6. [PMID: 29759737 DOI: 10.1016/j.jtcvs.2018.04.040] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 02/12/2018] [Accepted: 04/02/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVE The most efficient surgical approach to severe aortic valve disease in the young adult is still debated: cryopreserved aortic allograft offers excellent hemodynamic and avoid anticoagulation, but long-term durability is influenced by structural valve deterioration (SVD). This study aimed to describe long-term results of aortic allografts and to identify factors influencing long-term durability. METHODS From January 1993 to August 2010, 210 patients underwent aortic allograft replacement via the free-hand subcoronary implantation technique (N = 55) or root replacement with coronary reimplantation (N = 155). Clinic and echocardiographic follow-up was updated to April 2016. RESULTS Overall mortality and cardiac mortality occurred in 80 (38.1%) and 64 (30.5%) patients, respectively. Reoperation was required in 69 cases (32.8%), whereas SVD required reoperation in 57 cases (27.1%). No early endocarditis occurred, whereas late endocarditis occurred in 4 patients. The free-hand technique seems to be associated with improved left ventricular remodeling compared with the root-replacement technique, and smaller allograft size represents a predictor of reoperation independently on the surgical technique used. In the overall population, there were 44 women of childbearing age, and 37 patients remained pregnant during the follow-up of the study. No differences were found in the clinical outcomes among women who had children and who did not. CONCLUSIONS Cryopreserved allograft is a valid option, especially in complex infective endocarditis and in women of childbearing age. A careful choice of allograft size and implantation technique can reduce the risk of SVD.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord de Saint-Denis, Paris, France.
| | - Antonio Nenna
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Tommasangelo Petitti
- Department of Public Health and Statistics, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Cristiano Spadaccio
- Department of Cardiothoracic Surgery, Golden Jubilee National Hospital, Glasgow, United Kingdom; University of Glasgow Institute of Cardiovascular and Medical Sciences, Glasgow, United Kingdom
| | - Ivancarmine Gambardella
- Department of Cardiac Surgery, Liverpool Heart and Chest Hospital, Liverpool, United Kingdom
| | - Mario Lusini
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Massimo Chello
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Christophe Acar
- Department of Cardiac Surgery, Hopital La Pitie Salpetriere, Paris, France
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Zakkar M, Bruno VD, Visan AC, Curtis S, Angelini G, Lansac E, Stoica S. Surgery for Young Adults With Aortic Valve Disease not Amenable to Repair. Front Surg 2018; 5:18. [PMID: 29564333 PMCID: PMC5850822 DOI: 10.3389/fsurg.2018.00018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 02/12/2018] [Indexed: 11/27/2022] Open
Abstract
Aortic valve replacement is the gold standard for the management of patients with severe aortic stenosis or mixed pathology that is not amenable to repair according to currently available guidelines. Such a simplified approach may be suitable for many patients, but it is far from ideal for young adults considering emerging evidence demonstrating that conventional valve replacement in this cohort of patients is associated with inferior long-term survival when compared to the general population. Moreover; the utilisation of mechanical and bioprosthetic valves can significantly impact on quality and is linked to increased rates of morbidities. Other available options such as stentless valve, homografts, valve reconstruction and Ross operation can be an appealing alternative to conventional valve replacement. Young patients should be fully informed about all the options available - shared decision making is now part of modern informed consent. This can be achieved when referring physicians have a better understanding of the short and long term outcomes associated with every intervention, in terms of survival and quality of life. This review presents up to date evidence for available surgical options for young adults with aortic stenosis and mixed disease not amenable to repair.
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Affiliation(s)
- Mustafa Zakkar
- Departments of Cardiology and Cardiothoracic Surgery, Bristol Heart Institute, Bristol Royal Infirmary, Bristol, United Kingdom.,Department of Cardiac Surgery, L'Institut Mutualiste Montsouris, Paris, France
| | - Vito Domanico Bruno
- Departments of Cardiology and Cardiothoracic Surgery, Bristol Heart Institute, Bristol Royal Infirmary, Bristol, United Kingdom
| | - Alexandru Ciprian Visan
- Departments of Cardiology and Cardiothoracic Surgery, Bristol Heart Institute, Bristol Royal Infirmary, Bristol, United Kingdom
| | - Stephanie Curtis
- Departments of Cardiology and Cardiothoracic Surgery, Bristol Heart Institute, Bristol Royal Infirmary, Bristol, United Kingdom
| | - Gianni Angelini
- Departments of Cardiology and Cardiothoracic Surgery, Bristol Heart Institute, Bristol Royal Infirmary, Bristol, United Kingdom
| | - Emmanuel Lansac
- Department of Cardiac Surgery, L'Institut Mutualiste Montsouris, Paris, France
| | - Serban Stoica
- Departments of Cardiology and Cardiothoracic Surgery, Bristol Heart Institute, Bristol Royal Infirmary, Bristol, United Kingdom
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Heidary Rouchi A, Radmehr H, Tavakoli SA, Jafarzadeh Kashi TS, Mahdavi-Mazdeh M. Iranian homograft heart valves: assessment of durability and late outcome. Cell Tissue Bank 2016; 17:603-610. [PMID: 27501816 DOI: 10.1007/s10561-016-9573-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 07/29/2016] [Indexed: 11/26/2022]
Abstract
Durability and the rate of complications of homograft heart valves, adjusted for patient-related contributors and surgical techniques, rely mainly on the quality of allografts which in turn are mirrored in the donor characteristics and most importantly recovery and processing procedures. Aimed to assess the quality, a study was conducted to figure out the durability and late outcome following homograft replacement with valved conduits procured by the Iranian Tissue Bank. Retrospectively, the pre-implantation, perioperative and follow-up data of 400 non-consecutive recipients of cryopreserved heart valves (222 pulmonary and 178 aortic) from 2006 to 2015 were collected and analyzed in terms of variables reflecting late outcome including adverse events and durability. In the context of durability, the event of interest was defined as the need for homograft replacement and homograft-related death. The mean follow-up time (SD) of study entrants (male/female ratio, 1.4) was 49.8 (36.3) months. Median age at the time of implantation was 11 years. Total 10-years mortality was 21 % (84/400), including 66.7 % early (30-days mortality: 56/84) and 33.3 % late (28/84). Overall late complication rate was 2 %. Median survival time was 120 months (95 % CI 83.3-156.6). The pulmonary valves appeared to be more durable (P value <0.001) and survival probabilities in small sized grafts were lower (P value 0.008). One-, five-, and ten-year graft survival was 82, 76 and 73 %, respectively. The evidences suggest that the homografts function satisfactory with low rate of late complications; nevertheless, more emphasis should be given to make long-term durability comparable.
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Affiliation(s)
- Alireza Heidary Rouchi
- Iranian Tissue Bank and Research Center, Tehran University of Medical Sciences, Imam Khomeini Hospital Complex, Keshavarz Blvd., Tehran, 1419731351, Iran
| | - Hassan Radmehr
- Department of Cardiac Surgery, Children Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Amirhosein Tavakoli
- Iranian Tissue Bank and Research Center, Tehran University of Medical Sciences, Imam Khomeini Hospital Complex, Keshavarz Blvd., Tehran, 1419731351, Iran
| | | | - Mitra Mahdavi-Mazdeh
- Iranian Tissue Bank and Research Center, Tehran University of Medical Sciences, Imam Khomeini Hospital Complex, Keshavarz Blvd., Tehran, 1419731351, Iran.
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Kim JY, Kim JB, Jung SH, Choo SJ, Chung CH, Lee JW. Long-Term Outcomes of Homografts in the Aortic Valve and Root Position: A 20-Year Experience. THE KOREAN JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY 2016; 49:258-63. [PMID: 27525234 PMCID: PMC4981227 DOI: 10.5090/kjtcs.2016.49.4.258] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/19/2015] [Accepted: 10/20/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND The advantages of using a homograft in valve replacement surgery are the excellent hemodynamic profile, low risk of thromboembolism, and low risk of prosthetic valve infection. The aim of this study was to evaluate the long-term outcomes of homograft implantation in the aortic valve position. METHODS This is a retrospective study of 33 patients (>20 years old) who underwent aortic valve replacement or root replacement with homografts between April 1995 and May 2015. Valves were collected within 24 hours from explanted hearts of heart transplant recipients (<60 years) and organ donors who were not suitable for heart transplantation. The median follow-up duration was 35.6 months (range, 0 to 168 months). RESULTS Aortic homografts were used in all patients. The 30-day mortality rate was 9.1%. The 1- and 5-year survival rates were 80.0%±7.3% and 60.8%±10.1%, respectively. The 1-, 5-, and 10-year freedom from reoperation rates were 92.3%±5.2%, 68.9%±10.2%, and 50.3%±13.6%, respectively. The 1-, 5-, and 10-year freedom from significant aortic dysfunction rates were 91.7%±8.0%, 41.7%±14.2%, and 25.0%±12.5%, respectively. CONCLUSION Homografts had the advantages of a good hemodynamic profile and low risk of thromboembolic events, and with good outcomes in cases of aortitis.
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Affiliation(s)
- Joo Yeon Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine
| | - Sung-Ho Jung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine
| | - Suk Jung Choo
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine
| | - Cheol Hyun Chung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine
| | - Jae Won Lee
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine
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31
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Kirklin JK. Challenging homografts as the holy grail for aortic valve endocarditis. J Thorac Cardiovasc Surg 2016; 151:1230-1. [DOI: 10.1016/j.jtcvs.2015.12.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 12/08/2015] [Indexed: 11/28/2022]
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32
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Kim JB, Ejiofor JI, Yammine M, Camuso JM, Walsh CW, Ando M, Melnitchouk SI, Rawn JD, Leacche M, MacGillivray TE, Cohn LH, Byrne JG, Sundt TM. Are homografts superior to conventional prosthetic valves in the setting of infective endocarditis involving the aortic valve? J Thorac Cardiovasc Surg 2016; 151:1239-46, 1248.e1-2. [PMID: 26936004 DOI: 10.1016/j.jtcvs.2015.12.061] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 11/25/2015] [Accepted: 12/13/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND Surgical dogma suggests that homografts should be used preferentially, compared with conventional xenograft or mechanical prostheses, in the setting of infective endocarditis (IE), because they have greater resistance to infection. However, comparative data that support this notion are limited. METHODS From the prospective databases of 2 tertiary academic centers, we identified 304 consecutive adult patients (age ≥17 years) who underwent surgery for active IE involving the aortic valve (AV), in the period 2002 to 2014. Short- and long-term outcomes were evaluated using propensity scores and inverse-probability weighting to adjust for selection bias. RESULTS Homografts, and xenograft and mechanical prostheses, were used in 86 (28.3%), 139 (45.7%), and 79 (26.0%) patients, respectively. Homografts were more often used in the setting of prosthetic valve endocarditis (58.1% vs 28.8%, P = .002) and methicillin-resistant Staphylococcus (25.6% vs 12.1%, P = .002), compared with conventional prostheses. Early mortality occurred in 17 (19.8%) in the homograft group, and 20 (9.2%) in the conventional group (P = .019). During follow-up (median: 29.4 months; interquartile-range: 4.7-72.6 months), 60 (19.7%) patients died, and 23 (7.7%) experienced reinfection, with no significant differences in survival (P = .23) or freedom from reinfection rates (P = .65) according to the types of prostheses implanted. After adjustments for baseline characteristics, using propensity-score analyses, use of a homograft did not significantly affect early death (odds ratio 1.61; 95% confidence interval [CI], 0.73-3.40, P = .23), overall death (hazard ratio 1.10; 95% CI, 0.62-1.94, P = .75), or reinfection (hazard ratio 1.04; 95% CI, 0.49-2.18, P = .93). CONCLUSIONS No significant benefit to use of homografts was demonstrable with regard to resistance to reinfection in the setting of IE. The choice among prosthetic options should be based on technical and patient-specific factors. Lack of availability of homografts should not impede appropriate surgical intervention.
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Affiliation(s)
- Joon Bum Kim
- Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Mass; Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Julius I Ejiofor
- Division of Cardiac Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - Maroun Yammine
- Division of Cardiac Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - Janice M Camuso
- Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Mass
| | | | - Masahiko Ando
- Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Mass
| | - Serguei I Melnitchouk
- Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Mass
| | - James D Rawn
- Division of Cardiac Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - Marzia Leacche
- Division of Cardiac Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - Thomas E MacGillivray
- Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Mass
| | - Lawrence H Cohn
- Division of Cardiac Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - John G Byrne
- Division of Cardiac Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - Thoralf M Sundt
- Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Mass.
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Steffen V, Marsch G, Burgwitz K, Kuehn C, Teebken OE. Resistance to infection of long-term cryopreserved human aortic valve allografts. J Thorac Cardiovasc Surg 2015; 151:1251-9. [PMID: 26725710 DOI: 10.1016/j.jtcvs.2015.11.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Revised: 10/18/2015] [Accepted: 11/18/2015] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To analyze the in vitro antimicrobial activity of 3 antibiotic regimens (group A, gentamicin-piperacillin-vancomycin-metronidazole-amphotericin B; group B, gentamicin-piperacillin-flucloxacillin-metronidazole-amphotericin B; and group C, meropenem-vancomycin-tobramycin-colistin-amphotericin B) used in the processing of cryopreserved human ascending aortic tissue and aortic valves against Staphylococcus epidermidis and Staphylococcus aureus. The results were additionally compared with the infection resistance of cryopreserved ascending aortic tissue against Escherichia coli and Pseudomonas aeruginosa. MATERIALS Each of 10 cryopreserved human allografts (CHAs) was divided into 25 pieces (separating aortic wall and valve). Eighteen segments were microbiologically tested, and 7 pieces underwent scanning electron microscopy. A bacterial solution (4 mL; optical density, 0.20 ± 0.02) was used for contamination. After incubation, the optical density of the solution was measured. CHAs underwent sonication to release viable adherent bacteria. The number of attached bacteria was quantified by the colony forming units per square centimeter of CHA surface. RESULTS Antibiotic regimen groups B and C were more efficient than group A in eradicating gram-positive organisms adherent to the aortic wall (P < .001). Group C showed enhanced resistance against E coli compared with group A or B (P < .001), whereas group B appeared to be more effective against P aeruginosa (P < .001). With reference to each antibiotic regimen, ascending aortic tissue showed significantly less bacterial contamination with staphylococcal bacteria than valve grafts (P ≤ .01). CONCLUSIONS CHAs possess antibacterial activity despite long-term storage over 5 years. Antibiotic combinations applied during CHA processing have a significant influence on their infection resistance. Ascending aortic tissue shows a significantly enhanced bacterial resistance against staphylococcal bacteria compared with aortic valves.
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Affiliation(s)
- Viola Steffen
- Department of Cardiothoracic, Transplantation, and Vascular Surgery, Hannover Medical School, Hannover, Germany; CrossBIT Research Center for Biocompatibility and Immunology of Medical Implants, Hannover Medical School, Hannover, Germany
| | - Georg Marsch
- Department of Cardiothoracic, Transplantation, and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Karin Burgwitz
- Department of Cardiothoracic, Transplantation, and Vascular Surgery, Hannover Medical School, Hannover, Germany; CrossBIT Research Center for Biocompatibility and Immunology of Medical Implants, Hannover Medical School, Hannover, Germany
| | - Christian Kuehn
- Department of Cardiothoracic, Transplantation, and Vascular Surgery, Hannover Medical School, Hannover, Germany; CrossBIT Research Center for Biocompatibility and Immunology of Medical Implants, Hannover Medical School, Hannover, Germany
| | - Omke E Teebken
- Department of Cardiothoracic, Transplantation, and Vascular Surgery, Hannover Medical School, Hannover, Germany.
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34
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Outcomes of Aortic Valve-Sparing Operations in Marfan Syndrome. J Am Coll Cardiol 2015; 66:1445-53. [DOI: 10.1016/j.jacc.2015.07.041] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 07/20/2015] [Accepted: 07/21/2015] [Indexed: 11/23/2022]
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Pearse BL, Smith I, Faulke D, Wall D, Fraser JF, Ryan EG, Drake L, Rapchuk IL, Tesar P, Ziegenfuss M, Fung YL. Protocol guided bleeding management improves cardiac surgery patient outcomes. Vox Sang 2015; 109:267-79. [PMID: 25930098 DOI: 10.1111/vox.12279] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 02/19/2015] [Accepted: 02/27/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVES Excessive bleeding is a risk associated with cardiac surgery. Treatment invariably requires transfusion of blood products; however, the transfusion itself may contribute to postoperative sequelae. Our objective was to analyse a quality initiative designed to provide an evidenced-based approach to bleeding management. MATERIALS AND METHODS A retrospective analysis compared blood product transfusion and patient outcomes 15 months before and after implementation of a bleeding management protocol. The protocol incorporated point-of-care coagulation testing (POCCT) with ROTEM and Multiplate to diagnose the cause of bleeding and monitor treatment. RESULTS Use of the protocol led to decreases in the incidence of transfusion of PRBCs (47·3% vs. 32·4%; P < 0·0001), FFP (26·9% vs. 7·3%; P < 0·0001) and platelets (36·1% vs. 13·5%; P < 0·0001). During the intra-operative period, the percentage of patients receiving cryoprecipitate increased (2·7% vs. 5·1%; P = 0·002), as did the number of units transfused (248 vs. 692; P < 0·0001). The proportion of patients who received tranexamic acid increased (13·7% to 68·2%; P < 0·0001). There were reductions in re-exploration for bleeding (5·6% vs. 3·4; P = 0·01), superficial chest wound (3·3% vs. 1·4%; P = 0·002), leg wound infection (4·6% vs. 2·0%; P < 0·0001) and a 12% reduction in mean length of stay from operation to discharge (95%: 9-16%, P < 0·0001). Acquisition cost of blood products decreased by $1 029 118 in the 15-month period with the protocol. CONCLUSIONS The implementation of a bleeding management protocol supported by POCCT in a cardiac surgery programme was associated with significant reductions in the transfusion of allogeneic blood products, improved outcomes and reduced cost.
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Affiliation(s)
- B L Pearse
- Department of Anesthesia, The Prince Charles Hospital, Brisbane, Qld, Australia.,Department of Cardiac Surgery, The Prince Charles Hospital, Brisbane, Qld, Australia.,Adult Intensive Care Service, The Prince Charles Hospital, Brisbane, Qld, Australia.,Center of Health Practice Innovation, Griffith University, Brisbane, Qld, Australia
| | - I Smith
- Department of Anesthesia, The Prince Charles Hospital, Brisbane, Qld, Australia
| | - D Faulke
- Department of Anesthesia, The Prince Charles Hospital, Brisbane, Qld, Australia
| | - D Wall
- Department of Cardiac Surgery, The Prince Charles Hospital, Brisbane, Qld, Australia
| | - J F Fraser
- Adult Intensive Care Service, The Prince Charles Hospital, Brisbane, Qld, Australia.,Critical Care Research Group, The Prince Charles Hospital, Brisbane, Qld, Australia
| | - E G Ryan
- School of Mathematical Sciences, Queensland University of Technology, Brisbane, Qld, Australia.,Biostatistics Department, King's College London, Denmark Hill, UK
| | - L Drake
- Cardiac Surgery Clinical Information Service, The Prince Charles Hospital, Brisbane, Qld, Australia
| | - I L Rapchuk
- Department of Anesthesia, The Prince Charles Hospital, Brisbane, Qld, Australia
| | - P Tesar
- Department of Cardiac Surgery, The Prince Charles Hospital, Brisbane, Qld, Australia
| | - M Ziegenfuss
- Adult Intensive Care Service, The Prince Charles Hospital, Brisbane, Qld, Australia.,Critical Care Research Group, The Prince Charles Hospital, Brisbane, Qld, Australia
| | - Y L Fung
- Center of Health Practice Innovation, Griffith University, Brisbane, Qld, Australia.,Inflammation and Healing Research Cluster, School of Health & Sports Sciences, University of Sunshine Coast, Sunshine Coast, Qld, Australia
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