Background: Although it is the second leading cause of deaths worldwide, the cerebrovascular accident (CVA) has shown a significant reduction in mortality rates in recent decades.

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Diabetes mellitus type 2 (DM2) patients have higher risk to be infected with parenterally transmitted viruses, like hepatitis B or C virus. This study aims to determine HBV and HCV infection prevalence in DM2 patients from Northeast and Southeast Brazil. A total of 537 DM2 patients were included, 194 (36.12%) males and 343 (63.87%) females, with mean age of 57.13±11.49 years. HBV and HCV markers were determined using serological and molecular analysis, and risk factors were evaluated in a subgroup from Southeast (n = 84). Two HBV acute (HBsAg+/anti-HBc -) and one HBV chronic case (HBsAg+/anti-HBc+) were found. Six individuals (1.1%) were isolated anti-HBc, 37 (6.9%) had HBV infection resolved (anti-HBc+/anti-HBs+), 40 (7.4%) were considered HBV vaccinated (anti-HBc-/anti-HBs+). Thirteen patients (2.42%) had anti-HCV and 7 of them were HCV RNA+. In the subgroup, anti-HBc positivity was associated to age and anti-HCV positivity was associated to age, time of diabetes diagnosis, total bilirubin, indirect bilirubin, alkaline phosphatase at bivariate analysis, but none of them was statistically significant at multivariate analysis. As conclusion, low prevalence of HBV and high prevalence HCV was found in DM2 patients.

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The development of clotting factor inhibitor autoantibodies is rarely observed, but can result in a potentially life-threatening haemorrhagic disorder. These acquired inhibitors are most frequently against factor VIII (FVIII), whilst the detection of inhibitors against other clotting factors is rarer. Inhibitors against FVIII and FIX are mostly observed in patients with classical hereditary haemophilia after receiving factor replacement therapy. We report a rare case of acquired FVIII and factor IX (FIX) inhibitors in a single, non-haemophilic patient with chronic hepatitis C virus (HCV) infection who was receiving antiviral treatment with pegylated interferon plus ribavirin. The FVIII and FIX activities were <1% and high titres of inhibitors autoantibodies were found in his serum samples. After achieving a sustained virological response, combined immunosuppression with oral corticosteroids (prednisone) and azathioprine was introduced, eradicating the inhibitory autoantibodies. The development of these inhibitors in association with antiviral therapy for chronic hepatitis C is poorly understood, and particular attention must be given to HCV-infected patients with worsening coagulopathy, particularly if coexistent with treatment related thrombocytopenia.