Coronavirus Disease 2019 in Kidney Transplant Recipients: Single-Center Experience and Case-Control Study

Transplant Proc. 2021 May;53(4):1187-1193. doi: 10.1016/j.transproceed.2021.01.002. Epub 2021 Jan 13.

Abstract

Background: Kidney transplant recipients (KTR) are considered high-risk for morbidity and mortality from coronavirus disease 2019 (COVID-19). However, some studies did not show worse outcomes compared to non-transplant patients and there is little data about immunosuppressant drug levels and secondary infections in KTR with COVID-19. Herein, we describe our single-center experience with COVID-19 in KTR.

Methods: We captured KTR diagnosed with COVID-19 between March 1, 2020 and May 18, 2020. After exclusion of KTR on hemodialysis and off immunosuppression, we compared the clinical course of COVID-19 between hospitalized KTR and non-transplant patients, matched by age and sex (controls).

Results: Eleven KTR were hospitalized and matched with 44 controls. One KTR and 4 controls died (case fatality rate: 9.1%). There were no significant differences in length of stay or clinical outcomes between KTR and controls. Tacrolimus or sirolimus levels were >10 ng/mL in 6 out of 9 KTR (67%). Bacterial infections were more frequent in KTR (36.3%), compared with controls (6.8%, P = .02).

Conclusions: In our small case series, unlike earlier reports from the pandemic epicenters, the clinical outcomes of KTR with COVID-19 were comparable to those of non-transplant patients. Calcineurin or mammalian target of rapamycin inhibitor (mTOR) levels were high. Bacterial infections were more common in KTR, compared with controls.

MeSH terms

  • Adult
  • Aged
  • Antiviral Agents / therapeutic use
  • COVID-19 / complications
  • COVID-19 / diagnosis*
  • COVID-19 / virology
  • COVID-19 Drug Treatment
  • Case-Control Studies
  • Female
  • Graft Rejection / prevention & control
  • Humans
  • Immunosuppressive Agents / therapeutic use
  • Kidney Failure, Chronic / complications
  • Kidney Failure, Chronic / therapy
  • Kidney Transplantation*
  • Length of Stay
  • Male
  • Middle Aged
  • Pandemics
  • SARS-CoV-2 / isolation & purification
  • Sirolimus / therapeutic use
  • TOR Serine-Threonine Kinases / metabolism
  • Tacrolimus / therapeutic use
  • Treatment Outcome

Substances

  • Antiviral Agents
  • Immunosuppressive Agents
  • MTOR protein, human
  • TOR Serine-Threonine Kinases
  • Sirolimus
  • Tacrolimus