Do we need to screen for de-novo diabetes mellitus in chronic hepatitis C patients after a sustained virological response?


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Abstract

Background and aimThere are millions of chronic hepatitis C (CHC) virus-infected patients who have been treated with a combination therapy (interferon and ribavirin) and have achieved a virological response (SVR) worldwide. The aim of this study is to evaluate the risk factors for de-novo diabetes mellitus in CHC patients treated with combination therapy (interferon and ribavirin) and have achieved an SVR.Patients and methodsA total of 214 nondiabetic CHC patients with SVR and baseline homeostasis model assessment (HOMA) less than or equal to 2 were divided into group A, which included 108 patients with a BMI less than 25, and group B, which included 106 patients with a BMI of at least 25 and less than 30. HOMA insulin resistance (IR) and BMI were measured at the baseline, at achievement of an SVR, and 1 year after achievement of an SVR. Leptin levels were assessed at baseline and 1 year after achievement of an SVR in patients with increased BMI.ResultsOne year after SVR, 36 (33.33%) patients from group A developed increasing BMI with no significant changes in HOMA versus that at SVR (P=0.53), but showed a significant reduction versus baseline HOMA (P=0.02). In group B, 68 (64.1%) patients showed increased BMI of at least 25, with a significant increase in HOMA versus that at SVR (P=0.02), and with no significant reduction versus baseline HOMA (P=0.44). In group B, serum leptin showed a significant reduction 12 months after achievement of an SVR versus baseline in patients with increased BMI. Six patients from group B with increased BMI after 1 year developed de-novo IR and type two diabetes mellitus.ConclusionIn nondiabetic CHC patients with SVR and baseline BMI of at least 25, the post-SVR increase in BMI predisposed to an increase in HOMA-IR and could be considered a predisposing factor for diabetes mellitus.

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