| 22 G (n = 57) | | 23 G (n = 57) | | 25 G (n = 57) | |
---|
PTA | 16 | 28.1% | 10 | 17.5% | 18 | 31.6% |
EBF 1 | 12 | 21.1% | 6 | 10.5% | 4 | 7.0% |
EBF 3 | 16 | 28.1% | 28 | 49.1% | 26 | 45.6% |
normal | 13 | 22.8% | 13 | 22.8% | 9 | 15.8% |
- Data shows the number and percentage of patients in three groups after lumbar puncture with 22, 23, or 25 gauge needles. PTA: patients that showed radioisotope parathecal activity; EBF1: early bladder filling at 1 h without PTA; EBF3: early bladder filling at 3 h without PTA; normal: patients having cisternograms without PTA or EBF. All PTA patients had EBF at 1 h. There were no significant differences between needle sizes.