Table 1

Baseline ammonia levels, choice reaction time 1 and 2 (CRT1 and CRT2), number connection test (NCT), and mean EEG amplitude in TIPS and non-TIPS patients (mean (SEM))

Non-TIPS (n=8)TIPS (n=7)p Value
Ammonia (μ/l)27  (5)76  (10)<0.05
CRT1 (ms)412 (20)506 (53)0.12
CRT2 (ms)643 (33)825 (76)<0.02
NCT(s)43 (6)52 (7)0.46
EEG amplitude (μV)72 (3)72 (3)1.0