#1992 Triglyceride-glucose index and risk of cardiovascular events, graft loss and new onset diabetes after transplantation in renal transplant recipients

Abstract

Abstract Background and Aims Insulin resistance is prevalent disorder, but its clinical significance remains undetermined in renal transplant recipients. We explored the clinical implication of triglyceride-glucose (TyG) index in renal transplant recipients, recognizing it as a valuable marker for insulin resistance. Method A total of 6354 renal transplant recipients were enrolled from a nationwide, prospective cohort between May 2014 and December 2022. The TyG index was assessed between 6- and 12-months post-transplantation. We evaluated the association between TyG index and the risk of composite of cardiovascular events and death, renal allograft loss, and new onset diabetes after transplantation (NODAT). Results During the mean follow-up period of 39.2 ± 26.1 months, a total of 106 composite events of cardiovascular events and death, 174 events of renal allograft loss, and 438 events of NODAT were observed. The cumulative rate for composite events, graft loss, and NODAT was greater in patients with higher TyG quartile (all P < 0.001). In multivariate analysis, higher quartile of TyG was associated with an increased risk of composite events (HR 1.81, 95% CI 1.14–2.86), renal allograft loss (HR 2.13, 95% CI 1.28–3.55), and NODAT (HR 2.52, 95% CI 1.90–3.34). Higher quartile of TyG was associated with future graft dysfunction (adjusted mean eGFR differences of −4.72, 95% CI −7.39 – −2.04). There was a linear escalation in the risk of composite events and graft loss with the incremental rise in the TyG index, concomitant with an exponential augmentation in the risk of NODAT. Conclusion Renal transplant recipients with higher TyG index are associated with higher risk of composite of cardiovascular event and death, renal allograft loss, and NODAT.