1
|
Betancur V, Zughul R, Ivanovic A, Madrazo BL, Castillo P, Casillas J, Alessandrino F. Ultrasound of pancreatic transplant complications: a primer for radiologists. Clin Radiol 2023; 78:861-871. [PMID: 37679209 DOI: 10.1016/j.crad.2023.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 08/10/2023] [Accepted: 08/13/2023] [Indexed: 09/09/2023]
Abstract
Pancreatic transplantation is an established treatment for patients with type 1 diabetes patients and select type 2 diabetes patients, with excellent survival rates as graft health is evaluated through regular imaging and early detection of complications. Amongst the various imaging methods that may aid in diagnosis of pancreatic transplant complications, ultrasound is a widely available, quick, portable, and cost-effective technique, often used as the sole method to assess for pancreatic transplant complications. When assessing a patient with a pancreatic transplant, the radiologist should be methodical in assessing the vasculature, the pancreatic parenchyma, and the peripancreatic regions. Complications can be categorised based on time from transplant and type of complications, and include vascular, parenchymal, and enteric/anastomotic complications. Doppler has a major role in the diagnosis of vascular complications including arterial and venous thrombosis, arterial stenosis, pseudoaneurysms, and haematomas. Pancreatic complications include rejections and pancreatitis, and are often diagnosed through a combination of clinical, laboratory, and imaging findings, such as pancreatic heterogeneity or the presence of pancreatic pseudocysts. Enteric/anastomotic complications include leaks and bowel obstructions, and may require cross-sectional imaging in addition to ultrasound. This review covers the most common and high-impact vascular, parenchymal, and enteric/anastomotic complications that should be considered in every radiologist's search pattern when assessing a pancreatic graft, as well as their respective postoperative timeframes.
Collapse
Affiliation(s)
- V Betancur
- Leonard M. Miller School of Medicine, University of Miami, FL, USA
| | - R Zughul
- Department of Radiology, Jackson Memorial Hospital, Miami, FL, USA
| | - A Ivanovic
- Department of Diagnostic Imaging, Faculty of Medicine, Center for Radiology and MRI, Clinical Center of Serbia, Belgrade, Serbia
| | - B L Madrazo
- Division of Abdominal Imaging, Department of Radiology, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - P Castillo
- Division of Abdominal Imaging, Department of Radiology, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - J Casillas
- Division of Abdominal Imaging, Department of Radiology, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - F Alessandrino
- Division of Abdominal Imaging, Department of Radiology, Leonard M. Miller School of Medicine, Miami, FL, USA.
| |
Collapse
|
2
|
Petruzzo P, Ye H, Sardu C, Rouvière O, Buron F, Crozon-Clauzel J, Matillon X, Kanitakis J, Morelon E, Badet L. Pancreatic Allograft Thrombosis: Implementation of the CPAT-Grading System in a Retrospective Series of Simultaneous Pancreas-Kidney Transplantation. Transpl Int 2023; 36:11520. [PMID: 37720417 PMCID: PMC10501393 DOI: 10.3389/ti.2023.11520] [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: 04/27/2023] [Accepted: 08/09/2023] [Indexed: 09/19/2023]
Abstract
Pancreatic graft thrombosis (PAT) is a major surgical complication, potentially leading to graft loss. The recently proposed Cambridge Pancreas Allograft Thrombosis (CPAT) grading system provides diagnostic, prognostic and therapeutic recommendations. The aim of the present study was to retrospectively assess computed tomography angiography (CTA) examinations performed routinely in simultaneous pancreas-kidney (SPK) recipients to implement the CPAT grading system and to study its association with the recipients' outcomes. We retrospectively studied 319 SPK transplant recipients, who underwent a routine CTA within the first 7 postoperative days. Analysis of the CTA scans revealed PAT in 215 patients (106 grade 1, 85 grade 2, 24 grade 3), while 104 showed no signs. Demographic data of the patients with and without PAT (thrombosis and non-thrombosis group) were not significantly different, except for the higher number of male donors in the thrombosis group. Pancreatic graft survival was significantly shorter in the thrombosis group. Graft loss due to PAT was significantly associated with grade 2 and 3 thrombosis, while it did not differ for recipients with grade 0 or grade 1 thrombosis. In conclusion, the CPAT grading system was successfully implemented in a large series of SPK transplant recipients and proved applicable in clinical practice.
Collapse
Affiliation(s)
- Palmina Petruzzo
- Department of Transplantation, Edouard Herriot Hospital, HCL, UCLB Lyon I, Lyon, France
- Department of Surgery, University of Cagliari, Cagliari, Italy
| | - Haixia Ye
- Department of Transplantation, Edouard Herriot Hospital, HCL, UCLB Lyon I, Lyon, France
| | - Claudia Sardu
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Olivier Rouvière
- Department of Radiology, Edouard Herriot Hospital, HCL, UCLB Lyon I, Lyon, France
| | - Fanny Buron
- Department of Transplantation, Edouard Herriot Hospital, HCL, UCLB Lyon I, Lyon, France
| | | | - Xavier Matillon
- Department of Transplantation, Edouard Herriot Hospital, HCL, UCLB Lyon I, Lyon, France
| | - Jean Kanitakis
- Department of Dermatology, Edouard Herriot Hospital, HCL, Lyon, France
| | - Emmanuel Morelon
- Department of Transplantation, Edouard Herriot Hospital, HCL, UCLB Lyon I, Lyon, France
| | - Lionel Badet
- Department of Transplantation, Edouard Herriot Hospital, HCL, UCLB Lyon I, Lyon, France
| |
Collapse
|
3
|
Tomimaru Y, Kobayashi S, Ito T, Sasaki K, Iwagami Y, Yamada D, Noda T, Takahashi H, Kenmochi T, Doki Y, Eguchi H. Different timing and risk factors of cause-specific pancreas graft loss after simultaneous pancreas kidney transplantation. Sci Rep 2022; 12:17666. [PMID: 36271021 PMCID: PMC9586937 DOI: 10.1038/s41598-022-22321-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 10/12/2022] [Indexed: 02/08/2023] Open
Abstract
In cases after pancreas transplantation (PTx), the pancreas graft might be lost for various reasons, including a pancreatoduodenal graft-related complication or patient death with a functioning graft. Although the causes seem to have distinct characteristics, the causes of pancreas graft loss have not been characterized. This study aimed to characterize the causes of pancreas graft loss by analyzing data from a Japanese nationwide registry. This study included 391 patients who received simultaneous pancreas-kidney transplantation among 461 patients with PTx during the study period in approved institutions in Japan. We characterized each cause in terms of the timing of the cause-specific graft loss and preoperative factors associated with graft loss based on nationwide data from a Japanese nationwide registry. Among the 391 cases, 113 lost the pancreas graft due to patient death with a functioning graft (DWFG; n = 34, 44.2%), graft thrombus (n = 22, 28.6%), or chronic rejection (CR; n = 7, 9.1%). Average (± standard deviation) time from PTx to graft loss due to DWFG, graft thrombus, and CR was 3.70 ± 4.36, 0.02 ± 0.01, and 2.37 ± 2.08 years, respectively. Duration of type 1 diabetes mellitus and donor body mass index were significantly associated with pancreas graft loss due to DWFG and graft thrombus, respectively. This characterization showed that the timing and preoperative factors associated with pancreas graft loss were significantly different for different causes of graft loss. These results may inform PTx follow-up protocols to ensure that appropriate care is based on the cause of graft loss.
Collapse
Affiliation(s)
- Yoshito Tomimaru
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka E-2, Suita, Osaka, 565-0871, Japan
- The Japan Pancreas Transplant Registry, The Japanese Pancreas and Islet Transplant Association, Suita, Japan
| | - Shogo Kobayashi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka E-2, Suita, Osaka, 565-0871, Japan.
| | - Toshinori Ito
- The Japan Pancreas Transplant Registry, The Japanese Pancreas and Islet Transplant Association, Suita, Japan
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Kazuki Sasaki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka E-2, Suita, Osaka, 565-0871, Japan
| | - Yoshifumi Iwagami
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka E-2, Suita, Osaka, 565-0871, Japan
| | - Daisaku Yamada
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka E-2, Suita, Osaka, 565-0871, Japan
| | - Takehiro Noda
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka E-2, Suita, Osaka, 565-0871, Japan
| | - Hidenori Takahashi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka E-2, Suita, Osaka, 565-0871, Japan
| | - Takashi Kenmochi
- The Japan Pancreas Transplant Registry, The Japanese Pancreas and Islet Transplant Association, Suita, Japan
- Department of Transplantation and Regenerative Medicine, School of Medicine, Fujita Health University, Toyoake, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka E-2, Suita, Osaka, 565-0871, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka E-2, Suita, Osaka, 565-0871, Japan
| |
Collapse
|
4
|
Blundell J, Shahrestani S, Lendzion R, Pleass HJ, Hawthorne WJ. Risk Factors for Early Pancreatic Allograft Thrombosis Following Simultaneous Pancreas-Kidney Transplantation: A Systematic Review. Clin Appl Thromb Hemost 2021; 26:1076029620942589. [PMID: 33052066 PMCID: PMC7573738 DOI: 10.1177/1076029620942589] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Simultaneous pancreas-kidney (SPK) transplantation remains the most effective treatment for providing consistent and long-term euglycemia in patients having type 1 diabetes with renal failure. Thrombosis of the pancreatic vasculature continues to contribute significantly to early graft failure and loss. We compared the rate of thrombosis to graft loss and systematically reviewed risk factors impacting early thrombosis of the pancreas allograft following SPK transplantation. We searched the MEDLINE, EMBASE, The Cochrane Library, and PREMEDLINE databases for studies reporting thrombosis following pancreas transplantation. Identified publications were screened for inclusion and synthesized into a data extraction sheet. Sixty-three studies satisfied eligibility criteria: 39 cohort studies, 22 conference abstracts, and 2 meta-analyses. Newcastle-Ottawa Scale appraisal of included studies demonstrated cohort studies of low bias risk; 1127 thrombi were identified in 15 936 deceased donor, whole pancreas transplants, conferring a 7.07% overall thrombosis rate. Thrombosis resulted in pancreatic allograft loss in 83.3% of reported cases. This review has established significant associations between donor and recipient characteristics, procurement and preservation methodology, transplantation technique, postoperative management, and increased risk of early thrombosis in the pancreas allograft. Further studies examining the type of organ preservation fluid, prophylactic heparin protocol, and exocrine drainage method and early thrombosis should also be performed.
Collapse
Affiliation(s)
- Jian Blundell
- Sydney Medical School, University of Sydney, New South Wales, Australia
| | - Sara Shahrestani
- Sydney Medical School, University of Sydney, New South Wales, Australia.,Department of Surgery, University of Sydney at Westmead Hospital, New South Wales, Australia
| | - Rebecca Lendzion
- Department of Surgery, University of Sydney at Westmead Hospital, New South Wales, Australia
| | - Henry J Pleass
- Sydney Medical School, University of Sydney, New South Wales, Australia.,Department of Surgery, University of Sydney at Westmead Hospital, New South Wales, Australia
| | - Wayne J Hawthorne
- Sydney Medical School, University of Sydney, New South Wales, Australia.,Department of Surgery, University of Sydney at Westmead Hospital, New South Wales, Australia.,The Centre for Transplant & Renal Research, Westmead Institute for Medical Research, New South Wales, Australia
| |
Collapse
|
5
|
Raveh Y, Ciancio G, Burke GW, Figueiro J, Chen L, Morsi M, Namias N, Singh BP, Lindsay M, Alfahel W, Sleem MS, Nicolau-Raducu R. Susceptibility-directed anticoagulation after pancreas transplantation: A single-center retrospective study. Clin Transplant 2019; 33:e13619. [PMID: 31152563 DOI: 10.1111/ctr.13619] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 05/09/2019] [Accepted: 05/28/2019] [Indexed: 02/06/2023]
Abstract
Pancreas transplant achieves consistent long-term euglycemia in type 1 diabetes. Allograft thrombosis (AT) causes the majority of early graft failure. We compared outcomes of four anticoagulation regimens administered to 95 simultaneous kidney-pancreas or isolated pancreas transplanted between 1/1/2015 and 11/20/2018. Early postoperative anticoagulation regimens included the following: none, subcutaneous heparin/aspirin, with or without dextran, and heparin infusion. The regimens were empirically selected based on each surgeon's assessment of hemostasis of the operative field and personal preference. A sonographic-based global scoring system of AT is presented. The 47-month recipients and graft survival were 95% and 86%, respectively. Recipients with or without AT had similar survival. Five and four grafts were lost due to death and AT, respectively. Outcomes of prophylaxis regimens correlated with intensity of anticoagulation. Compared with no anticoagulation, an increase in hemorrhagic complications occurred exclusively with iv heparin. The higher arterial AT score found in regimens lacking antiplatelet therapy highlights the importance of early antiaggregants therapy. Abnormal fibrinolysis was associated with an increase in AT score. Platelet dysfunction, warm ischemia time, and enteric drainage were predictive of AT and, along with other known risk factors, were incorporated into an algorithm that matches intensity of early postoperative anticoagulation to the thrombotic risk.
Collapse
Affiliation(s)
- Yehuda Raveh
- Department of Anesthesia, University of Miami/Jackson Memorial Hospital, Miami, Florida.,Miami Transplant Institute, University of Miami/Jackson Memorial Hospital, Miami, Florida
| | - Gaetano Ciancio
- Miami Transplant Institute, University of Miami/Jackson Memorial Hospital, Miami, Florida.,Department of Surgery, University of Miami/Jackson Memorial Hospital, Miami, Florida
| | - George W Burke
- Miami Transplant Institute, University of Miami/Jackson Memorial Hospital, Miami, Florida.,Department of Surgery, University of Miami/Jackson Memorial Hospital, Miami, Florida
| | - Jose Figueiro
- Miami Transplant Institute, University of Miami/Jackson Memorial Hospital, Miami, Florida.,Department of Surgery, University of Miami/Jackson Memorial Hospital, Miami, Florida
| | - Linda Chen
- Miami Transplant Institute, University of Miami/Jackson Memorial Hospital, Miami, Florida.,Department of Surgery, University of Miami/Jackson Memorial Hospital, Miami, Florida
| | - Mahmoud Morsi
- Miami Transplant Institute, University of Miami/Jackson Memorial Hospital, Miami, Florida.,Department of Surgery, University of Miami/Jackson Memorial Hospital, Miami, Florida
| | - Nicholas Namias
- Department of Surgery, University of Miami/Jackson Memorial Hospital, Miami, Florida
| | - Bhavna P Singh
- Department of Anesthesia, University of Miami/Jackson Memorial Hospital, Miami, Florida
| | - Martine Lindsay
- Department of Anesthesia, University of Miami/Jackson Memorial Hospital, Miami, Florida
| | - Waseem Alfahel
- Department of Anesthesia, University of Miami/Jackson Memorial Hospital, Miami, Florida
| | - Mahmoud S Sleem
- Department of Anesthesia, University of Miami/Jackson Memorial Hospital, Miami, Florida
| | - Ramona Nicolau-Raducu
- Department of Anesthesia, University of Miami/Jackson Memorial Hospital, Miami, Florida.,Miami Transplant Institute, University of Miami/Jackson Memorial Hospital, Miami, Florida
| |
Collapse
|
6
|
Hakeem A, Chen J, Iype S, Clatworthy MR, Watson CJE, Godfrey EM, Upponi S, Saeb‐Parsy K. Pancreatic allograft thrombosis: Suggestion for a CT grading system and management algorithm. Am J Transplant 2018; 18:163-179. [PMID: 28719059 PMCID: PMC5763322 DOI: 10.1111/ajt.14433] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 07/09/2017] [Accepted: 07/11/2017] [Indexed: 01/25/2023]
Abstract
Pancreatic allograft thrombosis (PAT) remains the leading cause of nonimmunologic graft failure. Here, we propose a new computed tomography (CT) grading system of PAT to identify risk factors for allograft loss and outline a management algorithm by retrospective review of consecutive pancreatic transplantations between 2009 and 2014. Triple-phase CT scans were graded independently by 2 radiologists as grade 0, no thrombosis; grade 1, peripheral thrombosis; grade 2, intermediate non-occlusive thrombosis; and grade 3, central occlusive thrombosis. Twenty-four (23.3%) of 103 recipients were diagnosed with PAT (including grade 1). Three (2.9%) grafts were lost due to portal vein thrombosis. On multivariate analysis, pancreas after simultaneous pancreas-kidney transplantation/solitary pancreatic transplantation, acute rejection, and CT findings of peripancreatic edema and/or inflammatory change were significant risk factors for PAT. Retrospective review of CT scans revealed more grade 1 and 2 thromboses than were initially reported. There was no significant difference in graft or patient survival, postoperative stay, or morbidity of recipients with grade 1 or 2 thrombosis who were or were not anticoagulated. Our data suggest that therapeutic anticoagulation is not necessary for grade 1 and 2 arterial and grade 1 venous thrombosis. The proposed grading system can assist clinicians in decision-making and provide standardized reporting for future studies.
Collapse
Affiliation(s)
- A. Hakeem
- Department of SurgeryUniversity of Cambridge and NIHR Cambridge Biomedical Research Centre, and NIHR Blood and Transplant Research Unit in Organ Donation and TransplantationCambridgeUK
| | - J. Chen
- Department of SurgeryUniversity of Cambridge and NIHR Cambridge Biomedical Research Centre, and NIHR Blood and Transplant Research Unit in Organ Donation and TransplantationCambridgeUK
| | - S. Iype
- Department of SurgeryUniversity of Cambridge and NIHR Cambridge Biomedical Research Centre, and NIHR Blood and Transplant Research Unit in Organ Donation and TransplantationCambridgeUK
| | - M. R. Clatworthy
- Department of MedicineUniversity of Cambridge and NIHR Cambridge Biomedical Research Centre, and NIHR Blood and Transplant Research Unit in Organ Donation and TransplantationCambridgeUK
| | - C. J. E. Watson
- Department of SurgeryUniversity of Cambridge and NIHR Cambridge Biomedical Research Centre, and NIHR Blood and Transplant Research Unit in Organ Donation and TransplantationCambridgeUK
| | - E. M. Godfrey
- Department of RadiologyCambridge University Hospitals NHS Foundation TrustCambridgeUK
| | - S. Upponi
- Department of RadiologyCambridge University Hospitals NHS Foundation TrustCambridgeUK
| | - K. Saeb‐Parsy
- Department of SurgeryUniversity of Cambridge and NIHR Cambridge Biomedical Research Centre, and NIHR Blood and Transplant Research Unit in Organ Donation and TransplantationCambridgeUK
| |
Collapse
|
7
|
Organ Pretreatment With Cytotopic Endothelial Localizing Peptides to Ameliorate Microvascular Thrombosis and Perfusion Deficits in Ex Vivo Renal Hemoreperfusion Models. Transplantation 2016; 100:e128-e139. [DOI: 10.1097/tp.0000000000001437] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
8
|
Successful Combined Pancreas Fourth-Kidney Third and Pancreas Third-Kidney Second Transplantation: A Case Report. Transplant Direct 2015; 1:e22. [PMID: 27500224 PMCID: PMC4946470 DOI: 10.1097/txd.0000000000000532] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/16/2015] [Indexed: 11/26/2022] Open
Abstract
UNLABELLED Extremely few reports have been published on experience with multiple combined pancreas-kidney re-transplantation including long-term results. We here analyze our experience with two patients following successful combined pancreas fourth-kidney third and pancreas third-kidney second transplantation. METHODS Patient and graft survival as well as graft function and major complications were recorded. Patient 1 (women, 47 years) underwent combined pancreas fourth-kidney third transplantation after previous removal of the first and second renal and the second pancreatic grafts. Patient 2 (men, 51 years) underwent combined pancreas third-kidney second transplantation after nephrectomy of the first renal graft. Immunosuppression consisted of induction with alemtuzumab and maintenance with tacrolimus, mycophenolate mofetil/mycophenolic acid and steroids. RESULTS After a follow-up of 44 and 49 months, respectively, both patients are doing well with stable graft function. Leukopenia, thrombocytopenia, bacterial sepsis, and chronic hepatitis C as major complications were controllable. CONCLUSIONS Multiple pancreas-retransplantations combined with simultaneous renal transplantation are feasible. Meticulous immunosuppression, careful monitoring, and excellent patient adherence are of crucial importance.
Collapse
|