TY - JOUR T1 - Post-Epidural Headache: How Late Can It Occur? JF - The Journal of the American Board of Family Medicine JO - J Am Board Fam Med SP - 202 LP - 205 DO - 10.3122/jabfm.2009.02.080064 VL - 22 IS - 2 AU - Brian V. Reamy Y1 - 2009/03/01 UR - http://www.jabfm.org/content/22/2/202.abstract N2 - Background: Complications of labor epidural anesthesia include a post-dural puncture headache (PDPH). A 2003 meta-analysis described the onset of PDPH as occurring from 1 to 7 days after the procedure. Presented here is the first published case of a PDPH occurring 12 days postpartum.Methods: Twelve days after an uncomplicated labor epidural a patient was awakened by a “crushing” postural headache. The initial diagnosis was “possible subarachnoid hemorrhage.” Lumbar puncture and computed tomography angiogram were normal. Despite medications a severe postural headache persisted and she was referred for an epidural blood patch. Consultants felt the headache onset after 7 days made PDPH impossible. Ultimately a delayed EBP was performed with immediate resolution of her headache.Discussion: Meta-analyses describe that parturients have a 1.5% risk of accidental dural puncture during epidural placement. Onset of the headache occurs as early as 1 or as late as 7 days after the procedure. Epidural blood patch is the most effective treatment for PDPH and a rapid response is diagnostic.Conclusion: Described is the first reported case of a PDPH occurring well outside the normal range of onset 1 to 7 days after epidural anesthesia. The delayed diagnosis and treatment of PDPH in this patient illustrates the limitations of over-rigorous application of pooled analyses to the care of individual patients. ER -