1
|
González IA, Saeed O, Mustafa M, Segura SE, Collins K, Hou T, Mesa H, Lee SM, Zhang D, Lin J, Cummings OW. Incidental findings during donor liver assessment: Single center experience. Ann Diagn Pathol 2024; 69:152266. [PMID: 38266545 DOI: 10.1016/j.anndiagpath.2024.152266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 01/26/2024]
Abstract
Intraoperative consultation of donor liver is an important part of transplant evaluation and determination of liver eligibility. In this study, we describe incidental pathologic findings discovered during the pretransplant evaluation of liver donors in our Institution from 1/2010 to 12/2022. During this 13-year period 369 intraoperative consultations from 262 liver donors were performed. Of those cases, incidental findings were identified in 22 cases (5.9 %) from 19 donors (7.3 %); two donors had more than one lesion. The median age of this subset of patients was 53 years (range: 18-70) and females predominated (63 %). Sixteen of the donors had abnormal findings in the liver: 6 bile duct hamartoma (BDH), 5 hyalinized nodule with Histoplasma capsulatum, 5 focal nodular hyperplasia (FNH), 2 bile duct adenomas (BDA), 1 biliary cyst and 1 hemangioma. One donor had both FNH and a BDH. One BDH and 1 BDA case was misdiagnosed as malignancy during the frozen section evaluation. Three donors had extrahepatic pathologies: a pancreatic tail schwannoma, a low-grade appendiceal mucinous neoplasm, and a lymph node with metastatic endometrial endometrioid adenocarcinoma. Of the 19 livers, the final organ disposition was available for 9: 6 were transplanted (67 %) and 3 were discarded (33 %). Two of the 3 discarded organs were misdiagnosed BDH and BDA cases, and one was incorrectly reported as having 90 % microvesicular steatosis during the frozen assessment. We present the clinicopathologic characteristics of liver donors with incidental findings during the pre-transplant evaluation which could lead to unwarranted graft dismissal if misdiagnosed. Additionally, incidental fungal infections can have implications for immunosuppressive therapy and the decision to use or reject the graft.
Collapse
Affiliation(s)
- Iván A González
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, United States of America.
| | - Omer Saeed
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, United States of America
| | - Mohamed Mustafa
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, United States of America
| | - Sheila E Segura
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, United States of America
| | - Katrina Collins
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, United States of America
| | - Tieying Hou
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, United States of America
| | - Hector Mesa
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, United States of America
| | - Sun M Lee
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, United States of America
| | - Dongwei Zhang
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, United States of America
| | - Jingmei Lin
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, United States of America
| | - Oscar W Cummings
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, United States of America
| |
Collapse
|
2
|
Ram S, Verleden SE, Kumar M, Bell AJ, Pal R, Ordies S, Vanstapel A, Dubbeldam A, Vos R, Galban S, Ceulemans LJ, Frick AE, Van Raemdonck DE, Verschakelen J, Vanaudenaerde BM, Verleden GM, Lama VN, Neyrinck AP, Galban CJ. Computed tomography-based machine learning for donor lung screening before transplantation. J Heart Lung Transplant 2024; 43:394-402. [PMID: 37778525 DOI: 10.1016/j.healun.2023.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/03/2023] Open
Abstract
BACKGROUND Assessment and selection of donor lungs remain largely subjective and experience based. Criteria to accept or decline lungs are poorly standardized and are not compliant with the current donor pool. Using ex vivo computed tomography (CT) images, we investigated the use of a CT-based machine learning algorithm for screening donor lungs before transplantation. METHODS Clinical measures and ex situ CT scans were collected from 100 cases as part of a prospective clinical trial. Following procurement, donor lungs were inflated, placed on ice according to routine clinical practice, and imaged using a clinical CT scanner before transplantation while stored in the icebox. We trained and tested a supervised machine learning method called dictionary learning, which uses CT scans and learns specific image patterns and features pertaining to each class for a classification task. The results were evaluated with donor and recipient clinical measures. RESULTS Of the 100 lung pairs donated, 70 were considered acceptable for transplantation (based on standard clinical assessment) before CT screening and were consequently implanted. The remaining 30 pairs were screened but not transplanted. Our machine learning algorithm was able to detect pulmonary abnormalities on the CT scans. Among the patients who received donor lungs, our algorithm identified recipients who had extended stays in the intensive care unit and were at 19 times higher risk of developing chronic lung allograft dysfunction within 2 years posttransplant. CONCLUSIONS We have created a strategy to ex vivo screen donor lungs using a CT-based machine learning algorithm. As the use of suboptimal donor lungs rises, it is important to have in place objective techniques that will assist physicians in accurately screening donor lungs to identify recipients most at risk of posttransplant complications.
Collapse
Affiliation(s)
- Sundaresh Ram
- Department of Radiology, University of Michigan, Ann Arbor, Michigan; Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan
| | - Stijn E Verleden
- Lung Transplant Unit, Department of Chronic Diseases and Metabolism, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium; Department of ASTARC, University of Antwerp, Wilrijk, Belgium
| | - Madhav Kumar
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan
| | - Alexander J Bell
- Department of Radiology, University of Michigan, Ann Arbor, Michigan
| | - Ravi Pal
- Department of Radiology, University of Michigan, Ann Arbor, Michigan
| | - Sofie Ordies
- Lung Transplant Unit, Department of Chronic Diseases and Metabolism, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Arno Vanstapel
- Lung Transplant Unit, Department of Chronic Diseases and Metabolism, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium; Department of Imaging & Pathology, KU Leuven, Leuven, Belgium
| | | | - Robin Vos
- Lung Transplant Unit, Department of Chronic Diseases and Metabolism, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Stefanie Galban
- Department of Radiology, University of Michigan, Ann Arbor, Michigan
| | - Laurens J Ceulemans
- Lung Transplant Unit, Department of Chronic Diseases and Metabolism, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Anna E Frick
- Lung Transplant Unit, Department of Chronic Diseases and Metabolism, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Dirk E Van Raemdonck
- Lung Transplant Unit, Department of Chronic Diseases and Metabolism, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | | | - Bart M Vanaudenaerde
- Lung Transplant Unit, Department of Chronic Diseases and Metabolism, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Geert M Verleden
- Lung Transplant Unit, Department of Chronic Diseases and Metabolism, Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), KU Leuven, Leuven, Belgium
| | - Vibha N Lama
- Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, Michigan
| | - Arne P Neyrinck
- Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Craig J Galban
- Department of Radiology, University of Michigan, Ann Arbor, Michigan; Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan.
| |
Collapse
|
3
|
Dorent R, Gandjbakhch E, Goéminne C, Ivanes F, Sebbag L, Bauer F, Epailly E, Boissonnat P, Nubret K, Amour J, Vermes E, Ou P, Guendouz S, Chevalier P, Lebreton G, Flecher E, Obadia JF, Logeart D, de Groote P. Assessment of potential heart donors: A statement from the French heart transplant community. Arch Cardiovasc Dis 2017; 111:126-139. [PMID: 29277435 DOI: 10.1016/j.acvd.2017.12.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 10/10/2017] [Revised: 11/30/2017] [Accepted: 12/01/2017] [Indexed: 12/20/2022]
Abstract
Assessment of potential donors is an essential part of heart transplantation. Despite the shortage of donor hearts, donor heart procurement from brain-dead organ donors remains low in France, which may be explained by the increasing proportion of high-risk donors, as well as the mismatch between donor assessment and the transplant team's expectations. Improving donor and donor heart assessment is essential to improve the low utilization rate of available donor hearts without increasing post-transplant recipient mortality. This document provides information to practitioners involved in brain-dead donor management, evaluation and selection, concerning the place of medical history, electrocardiography, cardiac imaging, biomarkers and haemodynamic and arrhythmia assessment in the characterization of potential heart donors.
Collapse
Affiliation(s)
- Richard Dorent
- Agence de la biomédecine, direction prélèvement greffe organes-tissus, 1, avenue du Stade-de-France, 93212 Saint-Denis-La-Plaine cedex, France.
| | - Estelle Gandjbakhch
- Département de cardiologie, hôpital Pitié-Salpêtrière, Assistance publique-Hôpitaux de Paris, 75013 Paris, France
| | - Céline Goéminne
- Service de cardiologie, hôpital cardiologique, centre hospitalier régional et universitaire de Lille, 59000 Lille, France
| | - Fabrice Ivanes
- Service de cardiologie, hôpital Trousseau, centre hospitalier régional et universitaire de Tours, 37170 Tours, France
| | - Laurent Sebbag
- Pôle médicochirurgical de transplantation cardiaque adulte, hôpital Louis-Pradel, hospices civils de Lyon, 69500 Bron, France
| | - Fabrice Bauer
- Département de cardiologie, hôpital Charles-Nicolle, centre hospitalier universitaire de Rouen, 76000 Rouen, France
| | - Eric Epailly
- Service de chirurgie cardiaque, nouvel hôpital civil, centre hospitalier universitaire de Strasbourg, 67091 Strasbourg, France
| | - Pascale Boissonnat
- Pôle médicochirurgical de transplantation cardiaque adulte, hôpital Louis-Pradel, hospices civils de Lyon, 69500 Bron, France
| | - Karine Nubret
- Département d'anesthésie-réanimation II, centre hospitalier universitaire de Bordeaux, 33600 Pessac, France
| | - Julien Amour
- Département d'anesthésie-réanimation, hôpital Pitié-Salpêtrière, Assistance publique-Hôpitaux de Paris, 75013 Paris, France
| | - Emmanuelle Vermes
- Service de chirurgie cardiaque, hôpital Trousseau, centre hospitalier régional et universitaire de Tours, 37170 Tours, France
| | - Phalla Ou
- Département de radiologie, hôpital Bichat, Assistance publique-Hôpitaux de Paris, 75877 Paris, France
| | - Soulef Guendouz
- Département de cardiologie, hôpital Henri-Mondor, Assistance publique-Hôpitaux de Paris, 94010 Créteil, France
| | - Philippe Chevalier
- Service de rythmologie, hôpital Louis-Pradel, hospices civils de Lyon, 69500 Bron, France
| | - Guillaume Lebreton
- Service de chirurgie cardiovasculaire, hôpital Pitié-Salpêtrière, Assistance publique-Hôpitaux de Paris, 75013 Paris, France
| | - Erwan Flecher
- Service de chirurgie cardiovasculaire, centre hospitalier universitaire de Rennes, 35000 Rennes, France
| | - Jean-François Obadia
- Service de chirurgie cardiovasculaire, hôpital Louis-Pradel, hospices civils de Lyon, 69500 Bron, France
| | - Damien Logeart
- Département de cardiologie, hôpital Lariboisière, Assistance publique-Hôpitaux de Paris, 75475 Paris, France
| | - Pascal de Groote
- Service de cardiologie, hôpital cardiologique, centre hospitalier régional et universitaire de Lille, 59000 Lille, France
| |
Collapse
|