OBJECTIVE\nMETHODS\nRESULTS\nCONCLUSIONS\nTo describe patients, perioperative care, and outcomes undergoing supratentorial and infratentorial craniotomy for brain tumor resection in a tertiary-care hospital in Ethiopia.\nA retrospective cohort study of patients consecutively admitted between January 1, 2021, and December 31, 2021, was performed. We characterized patients, perioperative care, and outcomes.\nThe final sample comprised 153 patients; 144 (94%) were 18 years and over, females (n = 48, 55%) with primarily American Society of Anesthesiologists physical class II (n = 97, 63.4%) who underwent supratentorial (n = 114, 75%), or infratentorial (n = 39, 25%) tumor resection. Patients were routinely admitted (95%) to floor/wards before craniotomy; Inhaled anesthetic (isoflurane 88%/halothane 12%) was used for maintenance of general anesthesia. Propofol (n = 93, 61%), mannitol (n = 73, 48%), and cerebrospinal fluid drain (n = 28, 18%), were used to facilitate intraoperative brain relaxation, while the use of hyperventilation was rare (n = 1). The average estimated blood loss was 1040 ± 727 ml; 37 (24%) patients received tranexamic acid, and 57 (37%) received a blood transfusion. Factors associated with extubation were a) infratentorial tumor location: relative risk (RR) 0.45 (95% confidence interval [CI] 0.29-0.69), preoperative hydrocephalus: RR 0.51, (95% CI 0.34-0.79), shorter total anesthesia duration: 277.8 + 8.8 versus 426.77 + 13.1 minutes, P < 0.0001, lower estimated blood loss: 897 + 68 ml versus 1361.7 + 100 ml, P = 0.0002, and cerebrospinal fluid drainage to facilitate brain relaxation: RR 0.52, 95% CI 0.32-0.84). Approximately one in ten patients experienced postoperative obstructive hydrocephalus, surgical site infections, or pneumonia.\nThese findings suggest that certain factors may impact patient outcomes following craniotomy for tumor resection. By identifying these factors, health care providers may be better equipped to develop individualized treatment plans and improve patient outcomes. Additionally, the study highlights the importance of postoperative monitoring and management to prevent complications.

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