Past and current hepatitis E virus infection in renal transplant patients.

The chronic course of hepatitis E virus infection in immunosuppressed patients has been recently documented; however, clinical features and factors associated with this occurrence are not well known. The aim of this study was to evaluate the prevalence of previous or current HEV infection in renal transplant patients. One hundred ninety-two kidney transplant patients were studied and classified in three groups: G1-infected with hepatitis B and/or C virus; G2-patients with elevated ALT; G3-patients with normal ALT and no hepatotropic virus infection. Demographic, epidemiologic and clinical characteristics were compared between the groups. Patients with HEV infection (previous or current) were also compared to those who tested negative for HEV. HEV infection was detected using serologic (anti-HEV IgG) and molecular (HEV RNA) methods. Anti-HEV IgG was positive in 28 (15%) while HEV RNA was positive in 20 (10%). When both markers were considered, 44 (23%) patients showed evidence of previous or current HEV infection. However, both markers were concomitantly positive in only four cases (2%). In the comparative analysis, patients infected with HBV and/or HCV showed lower frequency of anti-HEV IgG (P = 0.009). There was no difference regarding demographic, epidemiologic and laboratory variable between viremic and non-viremic patients. In conclusion, past and current infection with HEV was a frequent finding among renal transplant recipients. Actively infected patients (HEV RNA positive) did not present distinct demographic and epidemiological characteristics or laboratory alterations suggestive of underlying liver damage. Therefore, infection with HEV can only be detected in immunosuppressed patients by systematic investigation of HEV RNA.

Vestibular Syndromes in Childhood and Adolescence.

Introduction The prevalence of vestibular disorders in childhood ranges from 0.4% to 15%; they may be the result of several factors, but most of the time it's an episodic vestibular syndrome related to migraine equivalents. Objective To evaluate the diagnostic and therapeutic aspects of children with vestibular signs and symptoms. Methods The present cross-sectional study evaluated data from the records of patients treated in an outpatient pediatric neurotology clinic over a 10-year period. These data included sociodemographic and clinical variables, results of complementary examinations, the treatment provided, and the clinical evolution. Results The sample was composed of 117 patients, with 54.7% of female subjects with a mean age of 10 years. The most prevalent diagnosis was benign paroxysmal vertigo of childhood (BPVC) (41.9%), followed by vestibular migraine (16.2%). The most prevalent complaint was vertigo (53.9% of the cases). Most patients (66.7%) had inadequate eating habits. Improvement of symptoms was observed in 40.4% of the patients treated with dietary guidance alone. In 80% of the cases, dietary counseling in combination with vestibular rehabilitation therapy achieved therapeutic success without the need of a drug treatment. Conclusion The predominant diagnosis was of BPVC, and its close relationship with the personal and family history of migraine, its benign evolution, and the importance of dietary guidance and vestibular rehabilitation for therapeutic success were observed.