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Journal of Korean Neurosurgical Society 1997;26(8): 1119-1122.
Supratentorial Epidural Hematoma as a Complication of Acoustic Neurinoma Surgery.
Sung Un Lee, Hyung Shik Shin, Jeom Dae Kwon, Sang Jin Kim, Sang Keun Park
Department of Neurosurgery, Sanggye Paik Hospital, College of Medicine, Inje University, Seoul, Korea.
The authors report a case of postoperative supratentorial epidural hematoma as a complication of acoustic neurinoma surgery. The 43-year-old man presented with hearing difficulty on the left side and decreased facial sensation. MR imaging demonstrated a huge, cystic left acoustic neurinoma and the retromastoid suboccipital approach was used for gross-total resection of the tumor. Postoperatively, the patient was drowsy and showed right hemiparesis. Computed tomographic scanning revealed a huge epidural hematoma in the left parietooccipital convexity. The intraoperative course was uneventful. Immediate craniotomy was performed and the epidural hematoma was removed. Bleeding from the superior sagittal sinus occurred, but was completely controlled. Postoperatively, the patient was neurologically normal, except for mild left facial weakness. Remote postoperative intracranial hemorrhage is a rare complication of craniotomy with significant morbidity and mortality. Such hemo-rrhages are likely to develop at or soon after surgery and can be related to the craniotomy site, operative positioning, and nonspecific mechanical factors. In this case, mechanical displacement of the brain secondary to excessive dehydration and CSF drainage was thought to be the cause of postoperative epidural hematoma. Clinical awareness of this rare but potential complication is essential to its early diagnosis and treatment. Difficulty in awakening from anesthesia and the development of new neurological deficits not attributable to the operative site are the most important keys to early diagnosis. Computed tomography is the diagnostic method of choice.
Key Words: Supratentorial epidural hematoma; Acoustic neurinoma surgery; Complication
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