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Louca J, Öchsner M, Shah A, Hoffman J, Vilchez FG, Garrido I, Royo-Villanova M, Domínguez-Gil B, Smith D, James L, Moazami N, Rega F, Brouckaert J, Van Cleemput J, Vandendriessche K, Tchana-Sato V, Bandiougou D, Urban M, Manara A, Berman M, Messer S, Large S. The international experience of in-situ recovery of the DCD heart: a multicentre retrospective observational study. EClinicalMedicine 2023; 58:101887. [PMID: 36911270 PMCID: PMC9995283 DOI: 10.1016/j.eclinm.2023.101887] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 03/06/2023] Open
Abstract
BACKGROUND Heart transplantation is an effective treatment offering the best recovery in both quality and quantity of life in those affected by refractory, severe heart failure. However, transplantation is limited by donor organ availability. The reintroduction of heart donation after the circulatory determination of death (DCD) in 2014 offered an uplift in transplant activity by 30%. Thoraco-abdominal normothermic regional perfusion (taNRP) enables in-situ reperfusion of the DCD heart. The objective of this paper is to assess the clinical outcomes of DCD donor hearts recovered and transplanted from donors undergoing taNRP. METHOD This was a multicentre retrospective observational study. Outcomes included functional warm ischaemic time, use of mechanical support immediately following transplantation, perioperative and long-term actuarial survival and incidence of acute rejection requiring treatment. 157 taNRP DCD heart transplants, performed between February 2, 2015, and July 29, 2022, have been included from 15 major transplant centres worldwide including the UK, Spain, the USA and Belgium. 673 donations after the neurological determination of death (DBD) heart transplantations from the same centres were used as a comparison group for survival. FINDINGS taNRP resulted in a 23% increase in heart transplantation activity. Survival was similar in the taNRP group when compared to DBD. 30-day survival was 96.8% ([92.5%-98.6%] 95% CI, n = 156), 1-year survival was 93.2% ([87.7%-96.3%] 95% CI, n = 72) and 5-year survival was 84.3% ([69.6%-92.2%] 95% CI, n = 13). INTERPRETATION Our study suggests that taNRP provides a significant boost to heart transplantation activity. The survival rates of taNRP are comparable to those obtained for DBD transplantation in this study. The similar survival may in part be related to a short warm ischaemic time or through a possible selection bias of younger donors, this being an uncontrolled observational study. Therefore, our study suggests that taNRP offers an effective method of organ preservation and procurement. This early success of the technique warrants further investigation and use. FUNDING None of the authors have a financial relationship with a commercial entity that has an interest in the subject.
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Affiliation(s)
- John Louca
- University of Cambridge School of Clinical Medicine, Addenbrooke's Hospital, Hills Rd, Cambridge CB2 0SP, UK
- Corresponding author.
| | - Marco Öchsner
- University of Cambridge School of Clinical Medicine, Addenbrooke's Hospital, Hills Rd, Cambridge CB2 0SP, UK
| | - Ashish Shah
- Vanderbilt Heart Transplant Unit 1215, 21st Ave, Nashville, Tennessee 37232, USA
| | - Jordan Hoffman
- Vanderbilt Heart Transplant Unit 1215, 21st Ave, Nashville, Tennessee 37232, USA
| | | | - Iris Garrido
- Hospital Universitario Virgen de La Arrixaca, Ctra. Madrid-Cartagena, s/n, El Palmar, Murcia 30120, Spain
| | - Mario Royo-Villanova
- Hospital Universitario Virgen de La Arrixaca, Ctra. Madrid-Cartagena, s/n, El Palmar, Murcia 30120, Spain
| | | | - Deane Smith
- Department of Cardiothoracic Surgery, Langone, 1300 Franklin Avenue, Suite ML-2, Garden City, NY, USA
| | - Leslie James
- Department of Cardiothoracic Surgery, Langone, 1300 Franklin Avenue, Suite ML-2, Garden City, NY, USA
| | - Nader Moazami
- Department of Cardiothoracic Surgery, Langone, 1300 Franklin Avenue, Suite ML-2, Garden City, NY, USA
| | - Filip Rega
- Departments of Cardiac Surgery and Cardiology, The University Hospital Leuven, Leuven, Belgium
| | - Janne Brouckaert
- Departments of Cardiac Surgery and Cardiology, The University Hospital Leuven, Leuven, Belgium
| | - Johan Van Cleemput
- Departments of Cardiac Surgery and Cardiology, The University Hospital Leuven, Leuven, Belgium
| | - Katrien Vandendriessche
- Departments of Cardiac Surgery and Cardiology, The University Hospital Leuven, Leuven, Belgium
| | | | | | - Marian Urban
- Department of Cardiothoracic Surgery, University of Nebraska Medical Centre, 2410 Atherholt Road, Omaha, NE, USA
| | - Alex Manara
- The Intensive Care Unit, Southmead Hospital, North Bristol NHS Trust, Bristol BS 10 5NB, UK
| | - Marius Berman
- Royal Papworth Hospital Biomedical Campus, Cambridge, CB2 0AY, UK
| | - Simon Messer
- Golden Jubilee Hospital, Agamermnon Street, Glasgow G81 4DY, UK
| | - Stephen Large
- Royal Papworth Hospital Biomedical Campus, Cambridge, CB2 0AY, UK
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Sarmah R, Sahu J, Dehury B, Sarma K, Sahoo S, Sahu M, Barooah M, Sen P, Modi MK. ESMP: A high-throughput computational pipeline for mining SSR markers from ESTs. Bioinformation 2012; 8:206-8. [PMID: 22419843 PMCID: PMC3302004 DOI: 10.6026/97320630008206] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 02/11/2012] [Indexed: 11/23/2022] Open
Abstract
UNLABELLED With the advent of high-throughput sequencing technology, sequences from many genomes are being deposited to public databases at a brisk rate. Open access to large amount of expressed sequence tag (EST) data in the public databases has provided a powerful platform for simple sequence repeat (SSR) development in species where sequence information is not available. SSRs are markers of choice for their high reproducibility, abundant polymorphism and high inter-specific transferability. The mining of SSRs from ESTs requires different high-throughput computational tools that need to be executed individually which are computationally intensive and time consuming. To reduce the time lag and to streamline the cumbersome process of SSR mining from ESTs, we have developed a user-friendly, web-based EST-SSR pipeline "EST-SSR-MARKER PIPELINE (ESMP)". This pipeline integrates EST pre-processing, clustering, assembly and subsequently mining of SSRs from assembled EST sequences. The mining of SSRs from ESTs provides valuable information on the abundance of SSRs in ESTs and will facilitate the development of markers for genetic analysis and related applications such as marker-assisted breeding. AVAILABILITY The database is available for free at http://bioinfo.aau.ac.in/ESMP.
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Affiliation(s)
- Ranjan Sarmah
- Agri-Bioinformatics Promotion Programme, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat-
785013, Assam, India
| | - Jagajjit Sahu
- Agri-Bioinformatics Promotion Programme, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat-
785013, Assam, India
| | - Budheswar Dehury
- Agri-Bioinformatics Promotion Programme, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat-
785013, Assam, India
| | - Kishore Sarma
- Agri-Bioinformatics Promotion Programme, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat-
785013, Assam, India
| | - Smita Sahoo
- Agri-Bioinformatics Promotion Programme, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat-
785013, Assam, India
| | - Mousumi Sahu
- Agri-Bioinformatics Promotion Programme, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat-
785013, Assam, India
| | - Madhumita Barooah
- Agri-Bioinformatics Promotion Programme, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat-
785013, Assam, India
| | - Priyabrata Sen
- Agri-Bioinformatics Promotion Programme, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat-
785013, Assam, India
| | - Mahendra Kumar Modi
- Agri-Bioinformatics Promotion Programme, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat-
785013, Assam, India
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