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  • Title: Atraumatic needle reduces the incidence of post-lumbar puncture syndrome.
    Author: Müller B, Adelt K, Reichmann H, Toyka K.
    Journal: J Neurol; 1994 May; 241(6):376-80. PubMed ID: 7931432.
    Abstract:
    We investigated the occurrence of the post-lumbar syndrome (PPS) in relation to the puncture technique used, in a prospective randomised double-blind study comprising 100 patients. A new atraumatic 22-gauge cannula was compared with a 20-gauge cannula with a Quincke bevel. The atraumatic cannula is a needle with a tip shaped like a closed circular cone with a lateral opening, usually used with an outer cannula (introducer). The study showed that both the frequency of PPS and of acute complaints during lumbar puncture can be dramatically reduced with the atraumatic puncture technique. A marked PPS occurred after lumbar puncture with the 20-gauge cannula in 31% of patients, whereas only 5% of patients reported marked post-puncture symptoms after lumbar puncture with the atraumatic cannula.
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