• Peter H Pan, Regina Fragneto, Charles Moore, and Vernon Ross.
• Department of Anesthesiology, Wake Forest University, Winston-Salem, NC, USA. ppan@wfubmc.edu
• South. Med. J. 2004 Apr 1; 97 (4): 359-63.

ObjectivesThe goal of this randomized study was to compare the incidence of postdural puncture headache (PDPH) and postdural puncture backache (PDPB), and the success rate between two small-gauge spinal needle designs used in women undergoing subarachnoid block anesthesia.MethodsAfter Institutional Review Board approval, 215 patients presenting for tubal ligation were randomly assigned to have 26-gauge Atraucan (AT group) or 25-gauge Whitacre (WH group) spinal needles used in their spinal anesthesia. The number of attempts to successful cerebrospinal fluid return and the success rate of the spinal blockade were documented. Postoperatively, an investigator blinded to the study interviewed patients daily.ResultsThe incidence of PDPH was similar between the AT group (3.9%) and the WH group (4.0%). The total duration of all PDPHs was 5 days for the AT group and 15 days for the WH group. Both groups had a similar one-attempt success rate of 61% (AT group) and 62% (WH group). Failure to obtain cerebrospinal fluid occurred in only one in the AT group and two in the WH group. The incidence of PDPB was similar and the severity was mild in both groups.ConclusionsThe low complication and failure rates make these two types of smaller size spinal needle design good candidates for dural puncture procedures, such as spinal anesthesia, diagnostic lumbar punctures, and myelograms.

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