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Related Experiment Video

Updated: Dec 29, 2025

Dural Stimulation and Periorbital von Frey Testing in Mice As a Preclinical Model of Headache
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Prevention of post-dural puncture headache: a randomized controlled trial.

J Salzer1, G Granåsen2, P Sundström1

  • 1Department of Clinical Science, Neurosciences at Umeå University, Umeå.

European Journal of Neurology
|January 31, 2020
PubMed
Summary

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Using a smaller 25-gauge atraumatic needle significantly reduces the risk of post-dural puncture headache (PDPH) after diagnostic lumbar puncture. Stylet reinsertion did not affect PDPH rates in this study.

Area of Science:

  • Neurology
  • Medical Procedures
  • Clinical Research

Background:

  • Post-dural puncture headache (PDPH) is a common complication following diagnostic lumbar puncture (LP).
  • Needle characteristics and procedural techniques may influence PDPH incidence.
  • Optimizing LP procedures can improve patient outcomes and reduce healthcare burdens.

Purpose of the Study:

  • To investigate the impact of needle size, needle design, and stylet reinsertion on the risk of PDPH.
  • To compare the efficacy of different needle types in preventing PDPH.
  • To provide evidence-based recommendations for minimizing PDPH after diagnostic LP.

Main Methods:

  • A randomized, double-blind study involving 952 subjects undergoing diagnostic LP.
  • Subjects were assigned to receive either a 22-gauge atraumatic, 25-gauge atraumatic, or 25-gauge cutting needle.
Keywords:
headachelumbar puncturepost-dural puncture headacherandomized controlled trial

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  • The study assessed PDPH incidence via standardized telephone interviews 5 days post-LP, with or without stylet reinsertion.

    • Main Results:

    • The 25-gauge atraumatic needle resulted in a lower PDPH risk compared to the 22-gauge atraumatic needle (22.0% vs. 30.2%).
    • The 25-gauge atraumatic needle also showed a lower PDPH risk compared to the 25-gauge cutting needle (22.0% vs. 32.8%).
    • Reinserting the stylet before needle withdrawal did not significantly alter the incidence of PDPH.

    Conclusions:

    • A 25-gauge atraumatic needle is superior in preventing PDPH compared to larger atraumatic needles and same-sized cutting needles.
    • Stylet reinsertion does not appear to be an effective strategy for PDPH prevention.
    • This study provides Class I evidence supporting the use of small atraumatic needles to decrease PDPH risk.