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1.
Transplant Proc ; 54(7): 1918-1943, 2022 Sep.
Article in English | MEDLINE | ID: covidwho-2261384

ABSTRACT

Over the last decades, the number of pancreas transplants has increased all over the world. Since the first pancreas transplant in 1966, patient and graft survival after simultaneous pancreas and kidney as well as after solitary pancreas transplantation have improved significantly. Patient survival at 1 year is >96% in all 3 recipient categories and pancreas graft survival is >90% for simultaneous pancreas and kidney and >86% for solitary transplants. For transplants performed between 2001 and 2010, with >10 years' follow-up time, the half-life (50% graft function) was 13 years for simultaneous pancreas and kidney, almost 10 years for a pancreas after kidney transplant, and >6 years for a pancreas transplant alone. These excellent results are even more astonishing because more high-risk patients were transplanted. The main reasons for improvement in outcome were reductions in technical failures and immunologic graft losses. These decreases were due to better patient and donor selection, standardization of surgical techniques, and superior immunosuppressive protocols.


Subject(s)
Kidney Transplantation , Pancreas Transplantation , Humans , Pancreas Transplantation/adverse effects , Registries , Graft Survival , Kidney Transplantation/adverse effects , Immunosuppressive Agents/therapeutic use
3.
Transplant Proc ; 53(4): 1160-1168, 2021 May.
Article in English | MEDLINE | ID: covidwho-1135578

ABSTRACT

BACKGROUND: The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has raised concern for the health of immunocompromised individuals, who are potentially at higher risk of more severe infection and poorer outcomes. As a large London transplant center serving a diverse patient population, we report the outcomes of SARS-CoV-2 infection in our cohort of 2848 kidney and/or pancreas transplant patients. METHODS: Data were obtained retrospectively for all transplant patients who attended hospital during the peak of the pandemic and had a positive nasopharyngeal SARS-CoV-2 test. RESULTS: Sixty-six patients were found to be positive for SARS-CoV-2. Twenty percent were treated as outpatients, 59% were admitted to the general ward, and 21% required intensive care. Treatment consisted of reduced immunosuppression, antibiotics for pneumonia or sepsis, and other supportive treatments. Within our cohort, 12 patients died (18%), with an overall mortality of 0.4%. Predictive risk factors for COVID-19 severity were explored. CONCLUSIONS: Severe disease was associated with lower hemoglobin prior to COVID-19 diagnosis and lower lymphocyte count at the time of diagnosis but not age, sex, ethnicity, or preexisting comorbidities. Lower glomerular filtration rate and higher C-reactive protein were associated with more severe disease. Despite no use of hydroxychloroquine, azithromycin, antiviral, or immunomodulatory medications, our mortality rate (kidney and pancreas transplant patients) is similar to current international rates.


Subject(s)
COVID-19/epidemiology , Immunocompromised Host/immunology , Kidney Transplantation/adverse effects , Pancreas Transplantation/adverse effects , Postoperative Complications/epidemiology , SARS-CoV-2/immunology , Adult , Aged , COVID-19/immunology , COVID-19/virology , Comorbidity , Female , Hospitalization/statistics & numerical data , Humans , Immunosuppression Therapy/adverse effects , Intensive Care Units/statistics & numerical data , Male , Middle Aged , Postoperative Complications/immunology , Postoperative Complications/virology , Retrospective Studies , Risk Factors , Severity of Illness Index , United Kingdom/epidemiology
6.
Am J Transplant ; 20(11): 3221-3224, 2020 11.
Article in English | MEDLINE | ID: covidwho-457000

ABSTRACT

The novel coronavirus disease 2019 (COVID-19) is associated with increased risk of thromboembolic events, but the extent and duration of this hypercoagulable state remain unknown. We describe the first case report of renal allograft infarction in a 46-year-old kidney-pancreas transplant recipient with no prior history of thromboembolism, who presented 26 days after diagnosis of COVID-19. At the time of renal infarct, he was COVID-19 symptom free and repeat test for SARS-CoV-2 was negative. This case report suggests that a hypercoagulable state may persist even after resolution of COVID-19. Further studies are required to determine thromboprophylaxis indications and duration in solid organ transplant recipients with COVID-19.


Subject(s)
Infarction/etiology , Kidney Failure, Chronic/surgery , Kidney Transplantation , Kidney/blood supply , Pancreas Transplantation/adverse effects , Transplant Recipients , COVID-19 , Humans , Infarction/diagnosis , Kidney Failure, Chronic/epidemiology , Male , Middle Aged , Pandemics , Tomography, X-Ray Computed , Ultrasonography
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