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Table 22 CSF pressure is dependent on the caliber of the needle used for puncture

From: S1 guidelines “lumbar puncture and cerebrospinal fluid analysis” (abridged and translated version)

Author Subjects (n) Population Needle Median SD Range 2.5 97.5
     mmH2O
[58] 31 Students, healthy 22 und 26 G 145 (22G); 157 (26G) 37 (22G); 36 (26G) 85 -230 (22G); 80 – 240 (26G) 40 (22G); 50 (26G) 250 (22G); 260 (26G)
[188] 354 Neurological diseases without increased intracranial pressure 20 and 22 G, atraumatic 170   90-280 100 250