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Primary brain tumors are usually treated by surgical removal with the goal of complete resection within the constraints of preservation of neurological function. However, gross total resection may not mean complete tumor removal, and ongoing compression from a mass effect can lead to serious sequelae. Spinal subarachnoid blockade is contraindicated in patients with brain tumors or space occupying lesions.A 32-year-old full term parturient presented to Labor and Delivery for semi-urgent repeat cesarean section. Three months ago, she underwent resection of a benign brain tumor and recovered with no new neurological deficits. The neurosurgeon was consulted by the anesthesia team and stated that the tumor was completely extirpated. Since there was no postoperative magnetic resonance imaging (MRI) and the patient still had some neurological deficits, the anesthesia team decided to proceed with a general anesthetic using a rapid sequence induction and intubation. Mild hyperventilation to maintain an end-tidal CO(2) of 30 mmHg was selected and conservative fluid management was maintained. Postcesarean MRI revealed residual tumor compressing the brain stem and a loculated cyst. If a spinal subarachnoid blockade technique had been selected, the risk of uncal herniation, based on the postoperative MRI findings, may have been realized.The present case demonstrates the necessity of a comprehensive and thorough review prior to selecting the anesthetic approach to mange the patients with a history of brain tumor resection. Postoperative MR imaging should be performed to evaluate the extent of tumor resection and possible existence of residual tumor.

surgical neurology international

Magnetic resonance imaging is essential prior to spinal subarachnoid blockade for parturients with a history of brain tumor resection undergoing cesarean section