title: [Two cases of intraoperative cerebral hemorrhage caused by undiagnosed metastatic brain tumors].
abstract: The authors report two cases of intraoperative cerebral hemorrhage caused by metastatic brain tumors. Delayed recovery from general anesthesia and neurological deficit were found in these patients. Brain CT in case 1 showed bilateral subdural hemorrhage and parenchymal massive hemorrhage in case 2. It is thought that the causes of hemorrhage are due to the changes in morphology of vessels, deterioration in cerebral circulatory regulated system, and increased intracranial pressure caused by tumors. Since the incidence of metastatic brain tumor has increased with prolonged survival time induced by progress in cancer therapy, preoperative brain examination and careful attention to vital signs during anesthesia are needed.
authors.affiliation: Department of Anesthesiology, St. Marianna University School of Medicine, Kawasaki 216-8511.
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Hino
authors.forename: Chiaki
authors.initials: C
authors.lastname: Sasaki
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Ito
authors.forename: Taiji
authors.initials: T
authors.lastname: Yazaki
authors.forename: Takeshi
authors.initials: T
authors.lastname: Tateda
authors.forename: Ikuo
authors.initials: I
authors.lastname: Yamanaka
mesh_terms: D000368:Aged; D001932:Brain Neoplasms / Q000150:complications* / Q000556:secondary*; D002543:Cerebral Hemorrhage / Q000209:etiology*; D006801:Humans; D007431:Intraoperative Complications; D008175:Lung Neoplasms / Q000473:pathology; D008297:Male; D013125:Spinal Neoplasms / Q000556:secondary / Q000601:surgery