RESUMO
Objective To retrospectively analyze unplanned secondary surgical operations in neurosurgery. Methods The incidence, causes and time interval from the first operation of unplanned secondary operations were systematically reviewed, and the length of stay, hospitalization expenses and conditions of prognosis of the patients were compared with those who did not suffered from unplanned secondary operations.Results In this study,339 unplanned secondary operations were confirmed from 2012 to 2016 in neurosurgery and the incidence of unplanned secondary operations was 0.65%. 80.24% of the unplanned secondary operations were incurred by postoperative bleeding,which was proved to be higher than other causes. Conclusions Unplanned secondary operations had caused more economic burdens, thus deserving close attentions. Reducing perioperative bleeding and implementing hierarchical operation management would be key to preventing and decreasing unplanned secondary operations.