Functional outcome following liver transplantation - a pilot study

Area of Science:

• Neuroscience
• Transplantation Medicine
• Psychology

Background:

• Pre-transplant liver patients show memory and psychomotor speed deficits.
• Post-liver transplantation, cognitive recovery is significant but incomplete at one year.
• Previous research indicated persistent deficits in specific cognitive domains.

Purpose of the Study:

• To evaluate the broader cognitive effects of liver transplantation.
• To assess the impact of post-transplant cognitive impairment on daily functioning, including driving.
• To compare cognitive and functional status across liver transplant candidates, recipients, and healthy controls.

Main Methods:

• A between-group design comparing three participant cohorts: transplant candidates, recipients, and controls.
• Assessment of affective status, functional capacity, quality of life, and neuropsychological status.
• Inclusion of a simulated driving ability test for all participants.

Main Results:

• Healthy controls outperformed transplant recipients, who in turn performed better than transplant candidates across most measures.
• Significant differences were most apparent in functional limitations, language, and attention.
• No statistically significant differences in simulated driving ability were found among the three groups.

Conclusions:

• Liver transplantation leads to significant psychosocial recovery, yet many patients do not regain their full pre-illness cognitive status.
• The chosen measure for driving ability lacked sensitivity to detect group differences in this study.
• Further research is needed to understand and address persistent cognitive deficits and their functional implications post-transplant.