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Canadian Journal of Anesthesia, Vol 46, 61-65, Copyright © 1999 by Canadian Anesthesiologists' Society

ARTICLES

Anesthesia for cesarean section in two patients with brain tumours

L Chang, L Looi-Lyons, L Bartosik and S Tindal
Department of Anaesthesia, St. Michael's Hospital, Toronto, Ontario, Canada.

PURPOSE: To describe two patients with brain tumours where general anesthesia was used for cesarean sections under emergency and urgent conditions. CLINICAL FEATURES (CASE #1): The first patient presented at 38 wk gestation with an acute intracranial tumour herniation, requiring emergency craniotomy and simultaneous cesarean section. General anesthesia was induced with thiopental and vecuronium, maintained with enflurane 1% in O2 100%. Maternal P(ET)CO2 was maintained at 25 mmHg. After delivering a healthy infant, she was given syntocinon, mannitol and dexamethasone i.v. anesthesia was maintained with fentanyl, nitrous oxide 50% in O2 and isoflurane 1% during frontal-lobe tumour resection. CLINICAL FEATURES (CASE #2): The second patient presented at 37 wk gestation for urgent cesarean section because of placental insufficiency. She had had a brain tumour resection four years earlier. An increase in intracranial pressure necessitated craniotomy for decompression at 20 wk gestation. She was further treated with dexamethasone, carbamazepine and radiation for control of cerebral oedema at 34 wk. Cesarean section was performed under general anesthesia; rapid-sequence-induction with thiopental and succinylcholine, followed by isoflurane 1% in O2 100%. Syntocinon, fentanyl and atracurium i.v. were administered after delivery of a healthy infant. Although neurosurgeons stood by, their intervention was unnecessary. CONCLUSION: General anesthesia remains safe and dependable for operative delivery in parturients with intracranial tumour. Tracheal intubation allows maternal hyperventilation thereby controlling raised intracranial pressure. Hemodynamic stability is readily achieved to maintain cerebral perfusion. However, a multidisciplinary-team approach is critical for successful patient management.


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Copyright © 1999 by the Canadian Anesthesiologists' Society.