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Dor FJMF, Porte RJ, Manas DM. The future of organ donation in Europe: Is there a role for organ recovery centers? Am J Transplant 2023:S1600-6135(23)00399-4. [PMID: 37028514 DOI: 10.1016/j.ajt.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/17/2023] [Accepted: 04/03/2023] [Indexed: 04/09/2023] [Imported: 08/29/2023]
Affiliation(s)
- Frank J M F Dor
- Imperial College Renal and Transplant Centre, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, UK; Department of Surgery and Cancer, Imperial College, London, UK.
| | - Robert J Porte
- Erasmus MC Transplant Institute, Division of HPB and Transplant Surgery, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Derek M Manas
- NHS Blood and Transplant, Stoke Gifford, Bristol, UK; Liver Transplant Unit, Freeman Hospital, Newcastle Hospitals NHS Foundation Trust, Newcastle University, Newcastle, UK
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Kim I, Maggiore U, Knight SR, Rana Magar R, Pengel LHM, Dor FJMF. Pre-emptive living donor kidney transplantation: A public health justification to change the default. Front Public Health 2023; 11:1124453. [PMID: 37006536 PMCID: PMC10063978 DOI: 10.3389/fpubh.2023.1124453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/28/2023] [Indexed: 03/19/2023] [Imported: 08/29/2023] Open
Affiliation(s)
- Isaac Kim
- Imperial College Renal and Transplant Centre, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Umberto Maggiore
- Dipartimento di Medicina e Chirurgia, Università di Parma, Unità Operativa Nefrologia, Azienda Ospedaliera-Universitaria Parma, Parma, Italy
| | - Simon R. Knight
- Sir Peter Morris Centre for Evidence in Transplantation, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
| | - Reshma Rana Magar
- Sir Peter Morris Centre for Evidence in Transplantation, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
| | - Liset H. M. Pengel
- Sir Peter Morris Centre for Evidence in Transplantation, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
| | - Frank J. M. F. Dor
- Imperial College Renal and Transplant Centre, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
- *Correspondence: Frank J. M. F. Dor
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van de Laar SC, Lafranca JA, Minnee RC, Papalois V, Dor FJMF. The Impact of Cold Ischaemia Time on Outcomes of Living Donor Kidney Transplantation: A Systematic Review and Meta-Analysis. J Clin Med 2022; 11:jcm11061620. [PMID: 35329945 PMCID: PMC8951281 DOI: 10.3390/jcm11061620] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 01/26/2022] [Revised: 03/04/2022] [Accepted: 03/09/2022] [Indexed: 02/04/2023] [Imported: 08/29/2023] Open
Abstract
Studies have been carried out to investigate the effect of a prolonged cold ischaemia time (CIT) on the outcomes of living donor kidney transplantation (LDKT). There is no clear consensus in the literature about the effects of CIT on LDKT outcomes, and therefore, we performed a systematic review and meta-analysis to provide evidence on this subject. Searches were performed in five databases up to 12 July 2021. Articles comparing different CIT in LDKT describing delayed graft function (DGF), graft and patient survival, and acute rejection were considered for inclusion. This study is registered with PROSPERO, CRD42019131438. In total, 1452 articles were found, of which eight were finally eligible, including a total of 164,179 patients. Meta-analyses showed significantly lower incidence of DGF (odds ratio (OR) = 0.61, p < 0.01), and significantly higher 1-year graft survival (OR = 0.72, p < 0.001) and 5-year graft survival (OR = 0.88, p = 0.04), for CIT of less than 4 h. Our results underline the need to keep CIT as short as possible in LDKT (ideally < 4 h), as a shorter CIT in LDKT is associated with a statistically significant lower incidence of DGF and higher graft survival compared to a prolonged CIT. However, clinical impact seems limited, and therefore, in LDKT programmes in which the CIT might be prolonged, such as kidney exchange programmes, the benefits outweigh the risks. To minimize these risks, it is worth considering including CIT in kidney allocation algorithms and in general take precautions to protect high risk donor/recipient combinations.
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Affiliation(s)
- Stijn C. van de Laar
- Imperial College Renal and Transplant Centre, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London W12 0HS, UK; (S.C.v.d.L.); (J.A.L.); (V.P.)
- Division of HPB and Transplant Surgery, Department of Surgery, Erasmus MC Transplant Institute, 3015 CN Rotterdam, The Netherlands;
| | - Jeffrey A. Lafranca
- Imperial College Renal and Transplant Centre, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London W12 0HS, UK; (S.C.v.d.L.); (J.A.L.); (V.P.)
| | - Robert C. Minnee
- Division of HPB and Transplant Surgery, Department of Surgery, Erasmus MC Transplant Institute, 3015 CN Rotterdam, The Netherlands;
| | - Vassilios Papalois
- Imperial College Renal and Transplant Centre, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London W12 0HS, UK; (S.C.v.d.L.); (J.A.L.); (V.P.)
- Department of Surgery and Cancer, Imperial College London, London SW7 2AZ, UK
| | - Frank J. M. F. Dor
- Imperial College Renal and Transplant Centre, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London W12 0HS, UK; (S.C.v.d.L.); (J.A.L.); (V.P.)
- Department of Surgery and Cancer, Imperial College London, London SW7 2AZ, UK
- Correspondence:
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Spoon EQW, Kortram K, Ismail SY, Nieboer D, d’Ancona FCH, Christiaans MHL, Dam RE, Hofker HS, Hoksbergen AWJ, van der Pant KA, Toorop RJ, van de Wetering J, Ijzermans JNM, Dor FJMF. Living Kidney Donor Knowledge of Provided Information and Informed Consent: The PRINCE Study. J Clin Med 2022; 11:jcm11030698. [PMID: 35160147 PMCID: PMC8837079 DOI: 10.3390/jcm11030698] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/12/2022] [Accepted: 01/21/2022] [Indexed: 02/04/2023] [Imported: 08/29/2023] Open
Abstract
Background: Informed consent for living kidney donation is paramount, as donors are healthy individuals undergoing surgery for the benefit of others. The informed consent process for living kidney donors is heterogenous, and the question concerns how well they are actually informed. Knowledge assessments, before and after donor education, can form the basis for a standardized informed consent procedure for live kidney donation. Methods: In this prospective, a multicenter national cohort study conducted in all eight kidney transplant centers in The Netherlands, we assessed the current status of the informed consent practice for live donor nephrectomy. All of the potential living kidney donors in the participating centers were invited to participate. They completed a pop quiz during their first outpatient appointment (Cohort A). Living kidney donors completed the same pop quiz upon admission for donor nephrectomy (Cohort B). Results: In total, 656 pop quizzes were completed (417 in Cohort A, and 239 in Cohort B). The average donor knowledge score was 7.0/25.0 (±3.9, range 0–18) in Cohort A, and 10.5/25.0 (±2.8, range 0–17.5) in Cohort B. Cohort B scored significantly higher on overall knowledge, preparedness, and the individual item scores (p < 0.0001), except for the long-term complications (p = 0.91). Conclusions: Donor knowledge generally improves during the live donor workup, but it is still quite disappointing. Long-term complications, especially, deserve more attention during living kidney donor education.
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Affiliation(s)
- Emerentia Q. W. Spoon
- Erasmus MC University Medical Centre, Department of Surgery, 3015 GD Rotterdam, The Netherlands; (E.Q.W.S.); (K.K.); (J.N.M.I.)
| | - Kirsten Kortram
- Erasmus MC University Medical Centre, Department of Surgery, 3015 GD Rotterdam, The Netherlands; (E.Q.W.S.); (K.K.); (J.N.M.I.)
| | - Sohal Y. Ismail
- Erasmus MC University Medical Centre, Department of Psychiatry, 3015 GD Rotterdam, The Netherlands;
| | - Daan Nieboer
- Erasmus MC University Medical Centre, Department of Public Health, 3015 GD Rotterdam, The Netherlands;
| | - Frank C. H. d’Ancona
- Radboud University Medical Centre, Department of Urology, 6525 GA Nijmegen, The Netherlands;
| | - Maarten H. L. Christiaans
- Maastricht University Medical Centre, Department of Internal Medicine, 6229 HX Maastricht, The Netherlands;
| | - Ruth E. Dam
- Leiden University Medical Centre, Department of Nephrology, 2333 ZA Leiden, The Netherlands;
| | - Hendrik Sijbrand Hofker
- University Medical Centre Groningen, Department of Surgery, 9713 GZ Groningen, The Netherlands;
| | | | - Karlijn Ami van der Pant
- Amsterdam University Medical Centre, Renal Transplant Unit, Department of Internal Medicine, 1105 AZ Amsterdam, The Netherlands;
- Amsterdam University Medical Centre, Renal Transplant Unit, Department of Nephrology, 1105 AZ Amsterdam, The Netherlands
| | - Raechel J. Toorop
- Utrecht University Medical Centre, Department of Surgery, 3584 CX Utrecht, The Netherlands;
| | | | - Jan N. M. Ijzermans
- Erasmus MC University Medical Centre, Department of Surgery, 3015 GD Rotterdam, The Netherlands; (E.Q.W.S.); (K.K.); (J.N.M.I.)
| | - Frank J. M. F. Dor
- Erasmus MC University Medical Centre, Department of Surgery, 3015 GD Rotterdam, The Netherlands; (E.Q.W.S.); (K.K.); (J.N.M.I.)
- Department of Surgery and Cancer, Imperial College, London SW7 2AZ, UK
- Correspondence:
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Benjamens S, Alghamdi SZ, Rijkse E, te Velde-Keyzer CA, Berger SP, Moers C, de Borst MH, Slart RHJA, Dor FJMF, Minnee RC, Pol RA. Aorto-Iliac Artery Calcification and Graft Outcomes in Kidney Transplant Recipients. J Clin Med 2021; 10:jcm10020325. [PMID: 33477285 PMCID: PMC7829792 DOI: 10.3390/jcm10020325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 11/25/2020] [Revised: 01/09/2021] [Accepted: 01/14/2021] [Indexed: 12/22/2022] [Imported: 08/29/2023] Open
Abstract
While the association of vascular calcification with inferior patient outcomes in kidney transplant recipients is well-established, the association with graft outcomes has received less attention. With this dual-centre cohort study, we aimed to determine the clinical impact of recipient pre-transplant aorto-iliac calcification, measured on non-contrast enhanced computed tomography (CT)-imaging within three years prior to transplantation (2005–2018). We included 547 patients (61.4% male, age 60 (interquartile range 51–68) years), with a median follow-up of 3.1 (1.4–5.2) years after transplantation. The aorto-iliac calcification score (CaScore) was inversely associated with one-year estimated-glomerular filtration rate (eGFR) in univariate linear regression analysis (standard β −3.3 (95% CI −5.1 to −1.5, p < 0.0001), but not after adjustment for potential confounders, including donor and recipient age (p = 0.077). In multivariable Cox regression analyses, a high CaScore was associated with overall graft failure (p = 0.004) and death with a functioning graft (p = 0.002), but not with death-censored graft failure and graft function decline. This study demonstrated that pre-transplant aorto-iliac calcification is associated with one-year eGFR in univariate, but not in multivariable linear regression analyses. Moreover, this study underlines that transplantation in patients with a high CaScore does not result in earlier transplant function decline or worse death censored graft survival, although ongoing efforts for the prevention of death with a functioning graft remain essential.
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Affiliation(s)
- Stan Benjamens
- Department of Surgery, Division of Transplant Surgery, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands; (S.Z.A.); (C.M.); (R.A.P.)
- Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands;
- Correspondence: ; Tel.: +31-50-361-6161
| | - Saleh Z. Alghamdi
- Department of Surgery, Division of Transplant Surgery, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands; (S.Z.A.); (C.M.); (R.A.P.)
| | - Elsaline Rijkse
- Department of Surgery, Division of HPB and Transplant Surgery, Erasmus MC University Medical Center, 3015 CE Rotterdam, The Netherlands; (E.R.); (R.C.M.)
| | - Charlotte A. te Velde-Keyzer
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands; (C.A.t.V.-K.); (S.P.B.); (M.H.d.B.)
| | - Stefan P. Berger
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands; (C.A.t.V.-K.); (S.P.B.); (M.H.d.B.)
| | - Cyril Moers
- Department of Surgery, Division of Transplant Surgery, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands; (S.Z.A.); (C.M.); (R.A.P.)
| | - Martin H. de Borst
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands; (C.A.t.V.-K.); (S.P.B.); (M.H.d.B.)
| | - Riemer H. J. A. Slart
- Medical Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands;
- Department of Biomedical Photonic Imaging, Faculty of Science and Technology, University of Twente, 7522 NB Enschede, The Netherlands
| | - Frank J. M. F. Dor
- Imperial College Renal and Transplant Centre, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London W12 0HS, UK;
- Department of Surgery & Cancer, Imperial College, London SW7 2BU, UK
| | - Robert C. Minnee
- Department of Surgery, Division of HPB and Transplant Surgery, Erasmus MC University Medical Center, 3015 CE Rotterdam, The Netherlands; (E.R.); (R.C.M.)
| | - Robert A. Pol
- Department of Surgery, Division of Transplant Surgery, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands; (S.Z.A.); (C.M.); (R.A.P.)
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Wong K, Owen-Smith A, Caskey F, MacNeill S, Tomson CRV, Dor FJMF, Ben-Shlomo Y, Bouacida S, Idowu D, Bailey P. Investigating Ethnic Disparity in Living-Donor Kidney Transplantation in the UK: Patient-Identified Reasons for Non-Donation among Family Members. J Clin Med 2020; 9:E3751. [PMID: 33233422 DOI: 10.3390/jcm9113751] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/09/2020] [Accepted: 11/17/2020] [Indexed: 12/11/2022] [Imported: 08/29/2023] Open
Abstract
There is ethnic inequity in access to living-donor kidney transplants in the UK. This study asked kidney patients from Black, Asian and minority ethnic groups why members of their family were not able to be living kidney donors. Responses were compared with responses from White individuals. This questionnaire-based mixed-methods study included adults transplanted between 1/4/13–31/3/17 at 14 UK hospitals. Participants were asked to indicate why relatives could not donate, selecting all options applicable from: Age; Health; Weight; Location; Financial/Cost; Job; Blood group; No-one to care for them after donation. A box entitled ‘Other—please give details’ was provided for free-text entries. Multivariable logistic regression was used to analyse the association between the likelihood of selecting each reason for non-donation and the participant’s self-reported ethnicity. Qualitative responses were analysed using inductive thematic analysis. In total, 1240 questionnaires were returned (40% response). There was strong evidence that Black, Asian and minority ethnic group individuals were more likely than White people to indicate that family members lived too far away to donate (adjusted odds ratio (aOR) = 3.25, 95% Confidence Interval (CI) 2.30–4.58), were prevented from donating by financial concerns (aOR = 2.95, 95% CI 2.02–4.29), were unable to take time off work (aOR = 1.88, 95% CI 1.18–3.02), were “not the right blood group” (aOR = 1.65, 95% CI 1.35–2.01), or had no-one to care for them post-donation (aOR = 3.73, 95% CI 2.60–5.35). Four qualitative themes were identified from responses from Black, Asian and minority ethnic group participants: ‘Burden of disease within the family’; ‘Differing religious interpretations’; ‘Geographical concerns’; and ‘A culture of silence’. Patients perceive barriers to living kidney donation in the UK Black, Asian and minority ethnic population. If confirmed, these could be targeted by interventions to redress the observed ethnic inequity.
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Benjamens S, Rijkse E, Te Velde-Keyzer CA, Berger SP, Moers C, de Borst MH, Yakar D, Slart RHJA, Dor FJMF, Minnee RC, Pol RA. Aorto-Iliac Artery Calcification Prior to Kidney Transplantation. J Clin Med 2020; 9:E2893. [PMID: 32906789 DOI: 10.3390/jcm9092893] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 12/14/2022] [Imported: 08/29/2023] Open
Abstract
As vascular calcification is common in kidney transplant candidates, aorto-iliac vessel imaging is performed for surgical planning. The aim of the present study was to investigate whether a novel non-contrast enhanced computed tomography-based quantification technique for aorto-iliac calcification can be used for cardiovascular risk stratification prior to kidney transplantation. In this dual-center cohort study, we measured the aorto-iliac calcium score (CaScore) of 547 patients within three years prior to transplantation (2005-2018). During a median (interquartile range) follow-up of 3.1 (1.4, 5.2) years after transplantation, 80 (14.7%) patients died, of which 32 (40.0%) died due to cardiovascular causes, and 84 (15.5%) patients had a cardiovascular event. Kaplan-Meier survival curves showed significant differences between the CaScore tertiles for cumulative overall-survival (Log-rank test p < 0.0001), cardiovascular survival (p < 0.0001), and cardiovascular event-free survival (p < 0.001). In multivariable Cox regression, the aorto-iliac CaScore was associated with all-cause mortality (hazard ratio 1.53, 95%CI 1.14-2.06, p = 0.005), cardiovascular mortality (2.04, 1.20-3.45, p = 0.008), and cardiovascular events (1.35, 1.01-1.80, p = 0.042). These independent associations of the aorto-iliac CaScore with the outcome measures can improve the identification of patients at risk for (cardiovascular) death and those who could potentially benefit from stringent cardiovascular monitoring to improve their prognosis after transplantation.
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Gopal JP, Dor FJMF, Crane JS, Herbert PE, Papalois VE, Muthusamy ASR. Anticoagulation in simultaneous pancreas kidney transplantation - On what basis? World J Transplant 2020; 10:206-214. [PMID: 32844096 PMCID: PMC7416362 DOI: 10.5500/wjt.v10.i7.206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/26/2020] [Accepted: 06/14/2020] [Indexed: 02/06/2023] [Imported: 08/29/2023] Open
Abstract
BACKGROUND Despite technical refinements, early pancreas graft loss due to thrombosis continues to occur. Conventional coagulation tests (CCT) do not detect hypercoagulability and hence the hypercoagulable state due to diabetes is left untreated. Thromboelastogram (TEG) is an in-vitro diagnostic test which is used in liver transplantation, and in various intensive care settings to guide anticoagulation. TEG is better than CCT because it is dynamic and provides a global hemostatic profile including fibrinolysis.
AIM To compare the outcomes between TEG and CCT (prothrombin time, activated partial thromboplastin time and international normalized ratio) directed anticoagulation in simultaneous pancreas and kidney (SPK) transplant recipients.
METHODS A single center retrospective analysis comparing the outcomes between TEG and CCT-directed anticoagulation in SPK recipients, who were matched for donor age and graft type (donors after brainstem death and donors after circulatory death). Anticoagulation consisted of intravenous (IV) heparin titrated up to a maximum of 500 IU/h based on CCT in conjunction with various clinical parameters or directed by TEG results. Graft loss due to thrombosis, anticoagulation related bleeding, radiological incidence of partial thrombi in the pancreas graft, thrombus resolution rate after anticoagulation dose escalation, length of the hospital stays and, 1-year pancreas and kidney graft survival between the two groups were compared.
RESULTS Seventeen patients who received TEG-directed anticoagulation were compared against 51 contemporaneous SPK recipients (ratio of 1: 3) who were anticoagulated based on CCT. No graft losses occurred in the TEG group, whereas 11 grafts (7 pancreases and 4 kidneys) were lost due to thrombosis in the CCT group (P = 0.06, Fisher’s exact test). The overall incidence of anticoagulation related bleeding (hematoma/ gastrointestinal bleeding/ hematuria/ nose bleeding/ re-exploration for bleeding/ post-operative blood transfusion) was 17.65% in the TEG group and 45.10% in the CCT group (P = 0.05, Fisher’s exact test). The incidence of radiologically confirmed partial thrombus in pancreas allograft was 41.18% in the TEG and 25.50% in the CCT group (P = 0.23, Fisher’s exact test). All recipients with partial thrombi detected in computed tomography (CT) scan had an anticoagulation dose escalation. The thrombus resolution rates in subsequent scan were 85.71% and 63.64% in the TEG group vs the CCT group (P = 0.59, Fisher’s exact test). The TEG group had reduced blood product usage {10 packed red blood cell (PRBC) and 2 fresh frozen plasma (FFP)} compared to the CCT group (71 PRBC/ 10 FFP/ 2 cryoprecipitate and 2 platelets). The proportion of patients requiring transfusion in the TEG group was 17.65% vs 39.25% in the CCT group (P = 0.14, Fisher’s exact test). The median length of hospital stay was 18 days in the TEG group vs 31 days in the CCT group (P = 0.03, Mann Whitney test). The 1-year pancreas graft survival was 100% in the TEG group vs 82.35% in the CCT group (P = 0.07, log rank test) and, the 1-year kidney graft survival was 100% in the TEG group vs 92.15% in the CCT group (P = 0.23, log tank test).
CONCLUSION TEG is a promising tool in guiding judicious use of anticoagulation with concomitant prevention of graft loss due to thrombosis, and reduces the length of hospital stay.
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Affiliation(s)
- Jeevan Prakash Gopal
- Imperial College Renal and Transplant Center, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London W12 0HS, United Kingdom
| | - Frank JMF Dor
- Imperial College Renal and Transplant Center, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London W12 0HS, United Kingdom
- Department of Surgery and Cancer, Imperial College, London W12 0HS, United Kingdom
| | - Jeremy S Crane
- Imperial College Renal and Transplant Center, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London W12 0HS, United Kingdom
- Department of Surgery and Cancer, Imperial College, London W12 0HS, United Kingdom
| | - Paul E Herbert
- Imperial College Renal and Transplant Center, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London W12 0HS, United Kingdom
- Department of Surgery and Cancer, Imperial College, London W12 0HS, United Kingdom
| | - Vassilios E Papalois
- Imperial College Renal and Transplant Center, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London W12 0HS, United Kingdom
- Department of Surgery and Cancer, Imperial College, London W12 0HS, United Kingdom
| | - Anand SR Muthusamy
- Imperial College Renal and Transplant Center, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London W12 0HS, United Kingdom
- Department of Surgery and Cancer, Imperial College, London W12 0HS, United Kingdom
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Bailey PK, Caskey FJ, MacNeill S, Tomson C, Dor FJMF, Ben-Shlomo Y. Beliefs of UK Transplant Recipients about Living Kidney Donation and Transplantation: Findings from a Multicentre Questionnaire-Based Case-Control Study. J Clin Med 2019; 9:E31. [PMID: 31877750 DOI: 10.3390/jcm9010031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 12/13/2022] [Imported: 08/29/2023] Open
Abstract
Differing beliefs about the acceptability of living-donor kidney transplants (LDKTs) have been proposed as explaining age, ethnic and socioeconomic disparities in their uptake. We investigated whether certain patient groups hold beliefs incompatible with LDKTs. This questionnaire-based case–control study was based at 14 hospitals in the United Kingdom. Participants were adults transplanted between 1 April 2013 and 31 March 2017. LDKT recipients were compared to deceased-donor kidney transplant (DDKT) recipients. Beliefs were determined by the direction and strength of agreement with ten statements. Multivariable logistic regression was used to investigate the association between beliefs and LDKT versus DDKT. Sex, age, ethnicity, religion, and education were investigated as predictors of beliefs. A total of 1240 questionnaires were returned (40% response). DDKT and LDKT recipients responded in the same direction for 9/10 statements. A greater strength of agreement with statements concerning the ‘positive psychosocial effects’ of living kidney donation predicted having an LDKT over a DDKT. Older age, Black, Asian and Minority Ethnic (BAME) group ethnicity, and having a religion other than Christianity were associated with greater degree of uncertainty regarding a number of statements, but there was no evidence that individuals in these groups hold strong beliefs against living kidney donation and transplantation. Interventions should address uncertainty, to increase LDKT activity in these groups.
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Bellini MI, Charalampidis S, Stratigos I, Dor FJMF, Papalois V. The Effect of Donors' Demographic Characteristics in Renal Function Post-Living Kidney Donation. Analysis of a UK Single Centre Cohort. J Clin Med 2019; 8:jcm8060883. [PMID: 31226861 PMCID: PMC6616400 DOI: 10.3390/jcm8060883] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 05/23/2019] [Revised: 06/17/2019] [Accepted: 06/18/2019] [Indexed: 02/02/2023] [Imported: 08/29/2023] Open
Abstract
Introduction: There is a great need to increase the organ donor pool, particularly for living donors. This study analyses the difference in post-living donation kidney function according to pre-donation characteristics of age, genetic relationship with the recipient, sex, ethnicity, and Body Mass Index (BMI). Methods: Retrospective single centre analysis of the trajectory of estimated Glomerular Filtration Rate (eGFR) post-living kidney donation, as a measure of kidney function. Mean eGFR of the different groups was compared at 6 months and during the 60 months follow up. Results: Mean age was 46 ± 13 years, 57% were female, and 60% Caucasian. Mean BMI was 27 ± 5 kg/m2, with more than a quarter of the cohort having a BMI > 30 (26%), and the majority of the donors genetically related to their recipients (56%). The higher decline rate in eGFR was at 6 months after donation, with female sex, non-Caucasian ethnicity, and age lower than 60 years being independently associated with higher recovery in kidney function (p < 0.05). In the 60 months follow up, older age, genetic relationship with the recipient, and male sex led to higher percentual difference in eGFR post-donation. Conclusion: In this study, with a high proportion of high BMI living kidney donors, female sex, age lower than 60 years, and non-genetic relationship with recipient were persistently associated with higher increase in post-donation kidney function. Ethnicity and BMI, per se, should not be a barrier to increasing the living donor kidney pool.
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Affiliation(s)
- Maria Irene Bellini
- Renal and Transplant Directorate, Imperial College Healthcare NHS Trust, W120HS London, UK.
| | - Sotiris Charalampidis
- Renal and Transplant Directorate, Imperial College Healthcare NHS Trust, W120HS London, UK.
| | | | - Frank J M F Dor
- Renal and Transplant Directorate, Imperial College Healthcare NHS Trust, W120HS London, UK.
- Department of Surgery and Cancer, Imperial College London, SW72AZ London, UK.
| | - Vassilios Papalois
- Renal and Transplant Directorate, Imperial College Healthcare NHS Trust, W120HS London, UK.
- Department of Surgery and Cancer, Imperial College London, SW72AZ London, UK.
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Visser IJ, van der Staaij JPT, Muthusamy A, Willicombe M, Lafranca JA, Dor FJMF. Timing of Ureteric Stent Removal and Occurrence of Urological Complications after Kidney Transplantation: A Systematic Review and Meta-Analysis. J Clin Med 2019; 8:E689. [PMID: 31100847 PMCID: PMC6572676 DOI: 10.3390/jcm8050689] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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: 04/23/2019] [Revised: 05/10/2019] [Accepted: 05/13/2019] [Indexed: 12/21/2022] [Imported: 08/29/2023] Open
Abstract
Implanting a ureteric stent during ureteroneocystostomy reduces the risk of leakage and ureteral stenosis after kidney transplantation (KTx), but it may also predispose to urinary tract infections (UTIs). The aim of this study is to determine the optimal timing for ureteric stent removal after KTx. Searches were performed in EMBASE, MEDLINE Ovid, Cochrane CENTRAL, Web of Science, and Google Scholar (until November 2017). For this systematic review, all aspects of the Cochrane Handbook for Interventional Systematic Reviews were followed and it was written based on the PRISMA-statement. Articles discussing JJ-stents (double-J stents) and their time of removal in relation to outcomes, UTIs, urinary leakage, ureteral stenosis or reintervention were included. One-thousand-and-forty-three articles were identified, of which fourteen articles (three randomised controlled trials, nine retrospective cohort studies, and two prospective cohort studies) were included (describing in total n = 3612 patients). Meta-analysis using random effect models showed a significant reduction of UTIs when stents were removed earlier than three weeks (OR 0.49, CI 95%, 0.33 to 0.75, p = 0.0009). Regarding incidence of urinary leakage, there was no significant difference between early (<3 weeks) and late stent removal (>3 weeks) (OR 0.60, CI 95%, 0.29 to 1.23, p = 0.16). Based on our results, earlier stent removal (<3 weeks) was associated with a decreased incidence of UTIs and did not show a higher incidence of urinary leakage compared to later removal (>3 weeks). We recommend that the routine removal of ureteric stents implanted during KTx should be performed around three weeks post-operatively.
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Affiliation(s)
- Isis J Visser
- Imperial College Renal and Transplant Centre, Imperial College NHS Healthcare Trust, Hammersmith Hospital, London W12 0HS, UK.
| | - Jasper P T van der Staaij
- Imperial College Renal and Transplant Centre, Imperial College NHS Healthcare Trust, Hammersmith Hospital, London W12 0HS, UK.
| | - Anand Muthusamy
- Imperial College Renal and Transplant Centre, Imperial College NHS Healthcare Trust, Hammersmith Hospital, London W12 0HS, UK.
- Department of Surgery and Cancer, Imperial College, London W12 0HS, UK.
| | - Michelle Willicombe
- Imperial College Renal and Transplant Centre, Imperial College NHS Healthcare Trust, Hammersmith Hospital, London W12 0HS, UK.
| | - Jeffrey A Lafranca
- Imperial College Renal and Transplant Centre, Imperial College NHS Healthcare Trust, Hammersmith Hospital, London W12 0HS, UK.
| | - Frank J M F Dor
- Imperial College Renal and Transplant Centre, Imperial College NHS Healthcare Trust, Hammersmith Hospital, London W12 0HS, UK.
- Department of Surgery and Cancer, Imperial College, London W12 0HS, UK.
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Jamshaid F, Froghi S, Di Cocco P, Dor FJ. Novel non-invasive biomarkers diagnostic of acute rejection in renal transplant recipients: A systematic review. Int J Clin Pract 2018; 72:e13220. [PMID: 30011113 DOI: 10.1111/ijcp.13220] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 06/07/2018] [Indexed: 01/17/2023] [Imported: 08/29/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Acute rejection is a significant complication detrimental to kidney transplant function. Current accepted means of diagnosis is percutaneous renal biopsy, a costly and invasive procedure. There is an urgent need to detect and validate non-invasive biomarkers capable of replacing the biopsy. DESIGN, SETTING, PARTICIPANTS AND MEASUREMENTS Comprehensive literature searches of Medline, EMBASE and Cochrane Central Register of Controlled Trials databases were performed. Eligible studies were included as per inclusion criteria and assessed for quality using the GRADE quality of evidence tool. Outcomes evaluated included biomarker diagnostic performance, number of patients/samples, mean age and gender ratio, immunosuppression regime, in addition to clinical applications of the biomarker(s) tested. PRISMA guidelines were followed. Where possible, statistical analysis of comparative performance data was performed. RESULTS 23 studies were included in this review, including 19 adult, 3 paediatric and 1 mixed studies. A total of 2858 participants and 50 candidate non-invasive tests were identified. Sensitivity, specificity and area under the curve performance values ranged 36%-100%, 30%-100% and 0.55-0.98, respectively. CONCLUSIONS Although larger, more robust multi-centre validation studies are needed before non-invasive biomarkers can replace the biopsy, numerous candidate tests have demonstrated significant promise for various facets of postoperative management. Suggested uses include: ruling out patients with a low risk of acute rejection to avoid the need for biopsy, non-invasive testing where the biopsy is contraindicated and a prompt diagnosis is needed, and integration into a serial blood monitoring protocol in conjunction with serum creatinine.
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Affiliation(s)
- Faisal Jamshaid
- MRC Centre for Transplantation, Guy's Campus, Kings College London School of Medicine, London, UK
| | - Saied Froghi
- MRC Centre for Transplantation, Guy's Campus, Kings College London School of Medicine, London, UK
- Imperial College London, Imperial College Renal and Transplant Centre, Hammersmith Hospital, London, UK
| | - Pierpaolo Di Cocco
- Imperial College London, Imperial College Renal and Transplant Centre, Hammersmith Hospital, London, UK
| | - Frank Jmf Dor
- Imperial College London, Imperial College Renal and Transplant Centre, Hammersmith Hospital, London, UK
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