title: Gastrointestinal endoscopy and HBV infection: no evidence for a causal relationship. A prospective controlled study.
abstract: The importance of the different endoscopic procedures in the transmission of hepatitis B was investigated prospectively by following up for 6 months all HBV-negative patients endoscoped from April to October 1981. A group of patients admitted in the same period to our unit constituted the control group. Controls were obtained after 1, 3, and 6 months from endoscopy. Infection rate was 1% for the control group and 0.45% for the endoscopy group. The difference is not statistically significant. These results strongly support the view, already present on an uncontrolled basis in the literature, that transmission of hepatitis B is not associated with gastrointestinal endoscopy.
mesh_terms: D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000009:adverse effects; D003113:Colonoscopy / Q000009:adverse effects; D004724:Endoscopy / Q000009:adverse effects*; D005773:Gastroscopy / Q000009:adverse effects; D006509:Hepatitis B / Q000276:immunology / Q000635:transmission*; D006512:Hepatitis B Core Antigens / Q000032:analysis; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D010535:Laparoscopy / Q000009:adverse effects; D011446:Prospective Studies
chemical_list: D006512:Hepatitis B Core Antigens; D006514:Hepatitis B Surface Antigens