• Chen-San Su, Min-Yu Lan, Yung-Yee Chang, Wei-Che Lin, and Kuan-Ting Liu.
• Department of Neurology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan, ROC.
• Eur. Neurol. 2009 Jan 1; 61 (5): 301-7.

Background And PurposeSpontaneous intracranial hypotension (SIH) is an uncommon, but not rare, cause of headache. We analyzed a series of patients with SIH and attempted to establish a clinical procedure.MethodsWe retrospectively reviewed 11 patients with SIH who were admitted between January 2004 and May 2007. Data recorded from patients included basic data, clinical symptoms, neurological imaging studies and treatment.ResultsOrthostatic headache was the most common symptom, but there were still 2 patients without orthostatic headache. Diffuse pachymeningeal enhancement was the most common finding in brain MRI study and engorgement of the spinal epidural venous plexus was the most common finding in spinal MRI study. Eight of our patients received epidural blood patches in the lumbar area and 6 of these were symptom-free within 2 weeks. Two patients received spinal MRI immediately after administering the epidural blood patch, and this revealed that most of the blood had spread to the upper cervical area from the lumbar injection.ConclusionA blind epidural blood patch from the lumbar area is an acceptable procedure even if the area of leakage is unknown. A reasonable clinical procedure for the patients of SIH may minimize the rate of repeat puncture.Copyright 2009 S. Karger AG, Basel.

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