Dynamic changes of intrinsic brain activity in cirrhotic patients after transjugular intrahepatic portosystemic shunt: a resting-state FMRI study.

The average blood ammonia levels were significantly different among the pre- and post-TIPS patients in each period, showing an increasing trend of median 8-day follow-up (30.30 ±24.28 μmol/L) < pre-TIPS (35.13±23.19 μmol/L) < median 3-month follow-up (65.02±35.15 μmol/L) (one-way analysis of variance, F = 3.75, P = 0.04), with significant difference between median 3-month follow-up and other groups (post-hoc test), but without significant difference between 8-day follow-up and pre-TIPS ( P = 0.65).

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