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Glucose Variability in Kidney Transplantation: Pre-Transplant and Post-Transplant Continuous Glucose Monitoring

E. Jo1, A. Han2, S. Min2, J. Ha3, H. Lee4, A. Cho5

1Surgery, Seoul National University Hospital, Seoul, Korea, Republic of, 2Seoul National University College of Medicine, Seoul, Korea, Republic of, 3Seoul Nat'l Univ. College of Medicine, Seoul, Korea, Republic of, 4Seoul National University Hospital, Seoul, Korea, Republic of, 5Surgery, Seoul National University College of Medicine, Seoul, Korea, Republic of

Meeting: 2022 American Transplant Congress

Abstract number: 791

Keywords: Hyperglycemia, Kidney transplantation, Metabolic complications, Screening

Topic: Clinical Science » Kidney » 35 - Kidney: Cardiovascular and Metabolic Complications

Session Information

Session Name: Kidney: Cardiovascular and Metabolic Complications

Session Type: Poster Abstract

Date: Saturday, June 4, 2022

Session Time: 5:30pm-7:00pm

 Presentation Time: 5:30pm-7:00pm

Location: Hynes Halls C & D

*Purpose: Continuous glucose monitoring (CGM) provides a 24-hour view of glucose values and information on glycemic variability and additional indices such as the glucose management indicator (GMI), which is an estimated A1C derived from the glucose measures. The purpose of this study was to observe the changes in glucose patterns from pretransplant to posttransplant period and analyze the efficacy and safety of continuous glucose monitoring in transplant patients.

*Methods: Patients planned to undergo kidney transplantation operations were enrolled in a prospective observational study starting May 1st, 2021. Upon enrollment, a CGM system was applied at least 2 weeks prior to admission for transplant operation for the preoperative CGM. Postoperative CGM was applied to the same patients on the day of admission for the transplant operation, which was 2 days before the operation. CGM was scheduled for 2 weeks preoperatively and postoperatively each. No additional interventions were undertaken.

*Results: By November 1, 2021, preoperative and postoperative CGM was performed in 25 living donor kidney transplantation recipients. Five patients received allografts from ABO incompatible donors and received preoperative desensitization. The preoperative CGM in these patients was completed before the sensitization protocol was performed. 6 patients had underlying type 2 diabetes. Postoperative mean glucose level was significantly higher than the preoperative mean glucose level (124.1±27.9 vs. 102.1±34.3 mg/dL, respectively; p=<0.001). The average daily time percentage in the glucose range from 181-250mg/dL was higher in the postoperative period than the preoperative period (12.1±11.3 vs. 8.6±15.5%, respectively; p=0.016). In contrast, the daily time percentage in the glucose range <70mg/dL was higher in the preoperative period than in the postoperative period (16.2±17.0 vs. 8.0±8%, respectively; p=0.021). The average glucose variability was not significantly different between the preoperative and postoperative period (30.0±8.5 vs. 34.2±10.5%, respectively; p=0.080). However, the average (GMI) was higher in the postoperative period than the postoperative period (6.9±3.2 vs. 5.60±0.8% respectively; p=0.001).

*Conclusions: The continuous glucose monitoring of kidney transplantation recipients showed that the postoperative period had a higher mean glucose level and mean time spent in the glucose range of 181-250mg/dL. Patients had significantly more hypoglycemic (<70mg/dL) incidences in the preoperative period.

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To cite this abstract in AMA style:

Jo E, Han A, Min S, Ha J, Lee H, Cho A. Glucose Variability in Kidney Transplantation: Pre-Transplant and Post-Transplant Continuous Glucose Monitoring [abstract]. Am J Transplant. 2022; 22 (suppl 3). https://atcmeetingabstracts.com/abstract/glucose-variability-in-kidney-transplantation-pre-transplant-and-post-transplant-continuous-glucose-monitoring/. Accessed May 8, 2025.

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