• J C Tien, M J Lim, W L Leong, and E Lew.
• Department of Women's Anesthesia, KK Women's and Children's Hospital, Singapore. Electronic address: claudia.tien.j.c@singhealth.com.sg.
• Int J Obstet Anesth. 2016 Dec 1; 28: 34-38.

BackgroundThe KK Women's and Children's Hospital is a tertiary obstetric unit with approximately 11000 deliveries per year. Epidural analgesia is used in about 40% of laboring women. We reviewed the incidence and management of post-dural puncture headache over a nine-year period.MethodsA retrospective audit of labor epidural analgesia database records from 1 June 2005 to 31 May 2014 was conducted, identifying an "event" as an accidental dural puncture, an inadvertent intrathecal catheter insertion and/or development of a post-dural puncture headache.ResultsA total of 43434 epidural records were reviewed. Sixty-three events were identified (an incidence of 0.15%). Women had median age of 30years and median body mass index of 27.6kg/m2; 69.8% (44/63) delivered vaginally. Procedures performed by less experienced anesthesiologists and those performed outside office hours were associated with a higher incidence of accidental dural puncture. An intrathecal catheter was inserted in 52 of 58 women (89.7%). Headache developed in 24 of 38 (63.1%) women in whom there was a witnessed accidental dural puncture. Most women who developed post-dural puncture headache presented during the primary admission (36/39; 92.3%). Paracetamol and non-steroidal anti-inflammatory drugs were the most commonly prescribed medications. Six women (9.5%) received an epidural blood patch which led to resolution of headache.ConclusionA retrospective audit over a nine-year period at a tertiary teaching hospital found the overall incidence of post-dural puncture headache and associated events to be 0.15%, with a decreasing trend coinciding with improvement in the teaching and supervision of trainees in labor epidural procedures.Copyright © 2016 Elsevier Ltd. All rights reserved.

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