Hepatogenous diabetes in liver transplant candidates: prevalence, risk factors and posttransplant outcome – prospective study

Klíčová slova: hepatogenní diabetes – diabetes mellitus 2. typu – transplantace jater – inzulinoterapie Summary: Introduction: Diabetes mellitus (DM) associated with liver cirrhosis (hepatogenous DM) has several differences from classical DM type 2 (T2DM), data about its prevalence, risk factors and outcome after liver transplantation (LT) are limited. The aim of this study was to evaluate the prevalence, risk factors and posttransplant outcome of DM diagnosed during the pretransplant investigation in a prospectively followed cohort of LT candidates. Methods: The study included 122 adult patients who were listed for LT in the period from 5/2015 to 4/2017. Presence of DM was evaluated by standard criteria including oral glucose tolerance test (OGTT). Results: DM was present in 54 patients (44.3%) pretransplant, of whom 26 patients (21.3%) had long-term history of DM before they were listed for LT (classical T2DM), and in other 28 patients (23.0%) DM was diagnosed during the pretransplant investigation based on pathological results of OGTT (hepatogenous DM). In 13 patients, de novo DM after LT was diagnosed. On the multivariate analysis, patients with hepatogenous DM had significantly lower BMI (P = 0.015), lower fasting glucose (P = 0.002) and lower glycated hemoglobin (P = 0.010), compared to classical T2DM. In comparison to patients without DM, patients with hepatogenous DM had more frequent occurrence of metabolic syndrome (P = 0.033). Patients with hepatogenous DM were less frequently treated with insulin at 1 month (32.0% vs. 76.2%; P = 0.002), 6 months (20.0% vs. 76.2%; P <0.001), 1 year (20.0% vs. 75.0%; P <0.001) and 2 years after LT (23.8% vs. 66.7%; P = 0.007) than patients with classical T2DM; but they were more frequently treated with insulin than patients without pretransplant DM 1 month after LT (32.0% vs. 7.7%; P = 0.015) and 2 years after LT (23.8% vs. 9.1%; P = 0.029). Conclusion: Hepatogenous DM is frequent in LT candidates (23.0%), it regresses in the majority of patients after LT unlike the classical T2DM, however, insulinotherapy is still necessary up to one quarter of patients even 2 years after LT. Key words: hepatogenous diabetes – type 2 diabetes mellitus – liver transplantation – insulinotherapy