Abstract: Objective  To investigate the incidence of gastrointestinal bleeding(GIB), risk factors for death, and clinical characteristics of GIB in patients admitted to the department of cardiology. Methods  The clinical data of 633 GIB patients admitted to the department of cardiology from January 2014 to December 2018 in the hospital were retrospectively analyzed. Results  The incidence of GIB in patients was 0.5%. Age, heart rate, albumin, aspartate aminotransferase, platelet levels at admission and the use of aspirin+ticagrelor, warfarin Lin+statins and other drugs were independent risk factors for death. The cause of most GIB was unknown (57.0%, 361/633). The main clinical manifestations were melena (53.2%, 337/633), hematemesis(39.8%, 252/633) and bloody stools (12.3%, 78/633). Conclusion  The incidence of GIB in patients was relatively low. Age, heart rate, albumin, aspartate aminotransferase, platelet levels at admission, and the use of aspirin+ticagrelor, warfarin+statins and other drugs were independent risk factors for death. The cause of most GIB was unknown.Hematemesis, melena and bloody stools werecommon clinical manifestations.

Key words: gastrointestinal hemorrhage, cardiology, incidence, risk factors, symptoms and signs