Journal of neurosurgery
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Journal of neurosurgery · Nov 1982
Intraoperative monitoring of brain-stem auditory evoked potentials.
Brain-stem auditory evoked potentials (BAEP) were monitored during 545 neurosurgical operations in the cerebellopontine angle. The BAEP were irreversibly obliterated in five patients who required deliberate section of the auditory nerve. Technical difficulties interfered with monitoring in three cases, and three patients had deafness and absent BAEP preoperatively. ⋯ Whenever BAEP returned toward normal by the end of anesthesia, even after transient obliteration, hearing was preserved. Irreversible loss of BAEP occurred only when the auditory nerve was deliberately sacrificed. The authors conclude that monitoring of BAEP may help prevent injury to the auditory nerve and brain stem during operations in the cerebellopontine angle.
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Journal of neurosurgery · Nov 1982
Case ReportsSurgical treatment of post-lumbar puncture dural CSF leak causing chronic headache. Case report.
A 58-year-old woman experienced incapacitating headache and occipital paresthesiae for 5 years after lumbar myelography. Conservative methods of treatment failed. ⋯ Repair of the dural defect with dorsolumbar fascia resulted in almost complete alleviation of symptoms. This case is unusual because of the radiographic technique used, the duration of symptoms, and the rarity of reports of successful surgical treatment for this serious complication of lumbar puncture.