Difficulties in spinal needle use

  • Tarkkila P
  • Huhtala J
  • Salminen U
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Abstract

The effect of different size (25‐, 27‐ and 29‐gauge) Quincke‐type spinal needles on the incidence of insertion difficulties and failure rates was investigated in a randomised, prospective study with 300 patients. The needle size was randomised but the insertion procedure was standardised. The time to achieve dural puncture was significantly longer with the 29‐gauge spinal needle compared with the larger bore needles and was due to the greater flexibility of the thin needle. However, the difference was less than 1 min and cannot be considered clinically significant. There were no significant differences between groups in the number of insertion attempts or failures and the same sensory level of analgesia was reached with all the needle sizes studied. Postoperatively, no postdural puncture headaches occurred in the 29‐gauge spinal needle group, whilst in the 25‐ and 27‐gauge needle groups, the postdural puncture headache rates were 7.4% and 2.1% respectively. The incidence of backache was similar in all study groups. We conclude that dural puncture with a 29‐gauge spinal needle is clinically as easy as with larger bore needles and its use is indicated in patients who have a high risk of postdural puncture headache.

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Tarkkila, P., Huhtala, J., & Salminen, U. (1994). Difficulties in spinal needle use. Anaesthesia, 49(8), 723–725. https://doi.org/10.1111/j.1365-2044.1994.tb04410.x

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