ABSTRACT
Background: There is an enormous knowledge gap on management strategies, clinical outcomes, and follow-up after kidney transplantation (KT) in recipients that have recovered from coronavirus disease (COVID-19). Methods: We conducted a multi-center, retrospective analysis in 23 Indian transplant centres between June 26, 2020 to December 1, 2021 on KT recipients who recovered after COVID-19 infections. We analyzed clinical and biopsy-confirmed acute rejection (AR) incidence and used cox-proportional modeling to estimate multivariate-adjusted hazard ratios (HR) for predictors of AR. We also performed competing risk analysis. Additional outcome measures included graft loss, all-cause mortality, waiting time from a positive real-time polymerase test (RT-PCR) to KT, laboratory parameters, and quality of life in follow-up. Findings: Among 372 KT which included 38(10·21%) ABO-incompatible, 12(3·22%) sensitized, 64(17·20%) coexisting donors with COVID-19 history and 20 (5·37%) recipients with residual radiographic abnormalities, the incidence of AR was 34 (9·1%) with 1(0·26%) death censored graft loss, and 4(1·07%) all-cause mortality over a median (interquartile range) follow-up of 241 (106-350) days. In our cox hazard proportional analysis, absence of oxygen requirement during COVID-19 compared to oxygen need [HR = 0·14(0·03-0·59); p-value = 0·0071], and use of thymoglobulin use compared to other induction strategies [HR = 0·17(0·03-0.95); p-value = 0·044] had a lower risk for AR. Degree of Human leukocyte antigen (HLA) DR mismatch had the highest risk of AR [HR = 10.2(1·74-65·83); p-value = 0·011]. With competing risk analysis, with death as a competing event, HLA DR mismatch, and oxygen requirement continued to be associated with AR. Age, gender, obesity, inflammatory markers, dialysis vintage, steroid use, sensitization and ABO-incompatibility have not been associated with a higher risk of AR. The median duration between COVID-19 real time polymerase test negativity to transplant was 88(40-145) days (overall), and ranged from 88(40-137), 65(42-120), 110(49-190), and 127(64-161) days in World Health Organization ordinal scale ≤ 3, 4, 5, and 6-7, respectively. There was no difference in quality of life, tacrolimus levels, blood counts, and mean serum creatinine assessed in patients with a past COVID-19 infection independent of severity. Interpretation: Our findings support that the outcomes of KT after COVID-19 recovery are excellent with absence of COVID-19 sequelae during follow-up. Additionally, there does not seem to be a need for changes in the induction/immunosuppression regimen based on the severity of COVID-19. Funding: Sanofi.
ABSTRACT
Context: There are concerns regarding the use of induction immunosuppression during deceased donor renal transplantation in the coronavirus disease 2019 (COVID-19) pandemic and whether lower doses may suffice. Aims: We aimed to compare different induction immunosuppression regimens in deceased donor renal transplantation during the COVID-19 pandemic. Settings and Design: A multicenter, prospective observational study of patients undergoing deceased donor renal transplantation during the COVID-19 pandemic in Southern Kerala from April to June 2020 with differing induction immunosuppression and follow-up for at least 6 months. Subjects and Methods: Patients were from Government (Group A) and Private hospitals (Group B). Induction immunosuppression included low dose rituximab and/or low dose anti-thymocyte globulin in group A and higher dose induction with anti-thymocyte globulin or basiliximab in Group B. Graft function at 1 and 6 months, infectious complications, and cost of induction immunosuppression were compared. Statistical Analysis Used: Mood's median, Chi-square, Fisher Exact, and Mann-Whitney U test. Results: Of eleven deceased donor kidney transplantations, six were from Group A and 5 from Group B. Three in Group A and two in Group B had reversible antibody-mediated rejections. Median serum creatinine (interquartile range) in both groups at 1 month was 1.35 (1.1, 3) and 1.5 (1.1, 3.5) mg/dl, respectively, and by 6 months 1.5 (1.05, 2.33) mg/dl and 1.7 (1.15, 2.6) mg/dl, respectively. Two patients in Group A died, one due to Gram-negative septicemia at the 2 nd month and the second by the 3 rd month following a cardiovascular event. Mean cost of induction immunosuppression in both groups was INR 40,500 ± 22,827 and 107,200 ± 57,595 (P = 0.01). There was no difference in infection episodes in both groups. Rituximab in a dose of 100 mg was used as induction in 4 patients with comparable graft functions and cost-benefit with a mean cost of INR 33,750 ± 26,196 and Rs. 92,000 ± 53,715 in the rituximab and nonrituximab groups, respectively (P = 0.056). Conclusions: Low-dose induction immunosuppression in the COVID pandemic was cheaper with comparable graft functions at 1 and 6 months. © 2021 Wolters Kluwer Medknow Publications. All rights reserved.
ABSTRACT
BACKGROUND: The COVID-19 pandemic has negatively impacted organ donation and transplantation across the globe. METHODS: This study analyzed transplant outcomes during the pre-pandemic [PPE, 1/2019-2/2020] and pandemic era [PE, 3/2020-8/2020] based on changes in induction immunosuppression. During PPE, high immunological risk patients received 4-6 mg/kg, moderate risk 2-4 mg/kg, and low risk 1-2 mg/kg of ATG. During PE, ATG doses were reduced to 3-4 mg/kg for high risk, 1-2 mg/kg for moderate, and low changed to basiliximab. Primary outcomes are as follows: biopsy-proven rejection [BPAR], de-novo donor-specific antibody [DSA], delayed graft function [DGF], infection rates, graft loss, and all-cause of mortality. RESULTS: During PPE, 224 kidney transplants [KTx] and 14 kidney/pancreas transplants [KP] were included, while 180 KTx and 5 KP were included for PE. Basiliximab use increased by 30% in the PE. The odds of DGF were statistically significant between PE vs PPE, OR 1.7 [1.05, 2.8, p-value = .042]. The odds of developing DSAs and BPAR during the PE vs. PPE were 0.34 [0.16, 0.71, p-value = .004] and OR 0.34 (0.1 to 1.1, p-value, .104)], respectively. Cytomegalovirus [19% in PE, 37% in PPE] and BK virus [5.4% PE vs. 16% PPE] incidence reduced during PE vs. PPE. COVID-19, graft loss, and mortality were comparable between groups. CONCLUSION: KTx and KP transplants were performed safely during the COVID-19 pandemic with a reduction of induction immunosuppression.