Table 1

Incidence of adverse events (%) in successful lumbar punctures by needle gauge

Adverse Event24 gauge
(n=5)
25 gauge
(n=43)
27 gauge
(n=237)
Severe headache2 (40)03 (1.3)
Mild headache02 (4.6)28 (11.8)
Paraesthesia04 (9.3.)12 (5.1)
Mild discomfort09 (20.9)12 (5.1)
Skin Irritation01 (2.3)2 (0.8)
Back ache04 (9.3)7 (3.0)
Bleeding01 (2.3)1 (0.4)
Vasovagal episode1 (20)1 (2.3)4 (1.7)
Total322 (51.1)69 (29.1)
  • Note: No adverse events were recorded in the n=7 procedures with unknown needle gauge.