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J Neurosurg. 2003 Nov;99(5):840-2.

Recurrent spontaneous spinal cerebrospinal fluid leaks and intracranial hypotension: a prospective study.

Author information

  • 1Maxine Dunitz Neurosurgical Institute, Imaging Medical Group, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA. schievinkw@cshs.org

Abstract

OBJECT:

Intracranial hypotension due to a spontaneous spinal cerebrospinal fluid (CSF) leak is an increasingly recognized cause of postural headaches, but reliable follow-up data are lacking. The authors undertook a study to determine the risk of a recurrent spontaneous spinal CSF leak.

METHODS:

The patient population consisted of a consecutive group of 18 patients who had been evaluated for consideration of surgical repair of a spontaneous spinal CSF leak. The mean age of the 15 women and three men was 38 years (range 22-55 years). The mean duration of follow up was 36 months (range 6-132 months). The total follow-up time was 654 months. A recurrent spinal CSF leak was defined on the basis of computerized tomography myelography evidence of a CSF leak in a previously visualized but unaffected spinal location. Five patients (28%) developed a recurrent spinal CSF leak; the mean age of these four women and one man was 36 years. A recurrent CSF leak developed in five (38%) of 13 patients who had undergone surgical CSF leak repair, compared with none (0%) of five patients who had been treated non-surgically (p = 0.249). The recurrent leak occurred between 10 and 77 months after the initial CSF leak, but within 2 or 3 months of successful surgical repair of the leak in all patients.

CONCLUSIONS:

Recurrent spontaneous spinal CSF leaks are not rare, and the recent successful repair of such a leak at another site may be an important risk factor.

PMID:
14609162
[PubMed - indexed for MEDLINE]
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