Correlation between quantitative-EEG alterations and age in patients with interferon-alpha-treated hepatitis C

Area of Science:

• Neuroscience
• Hepatology
• Pharmacology

Background:

• Quantitative electroencephalogram (QEEG) alterations have been observed in chronic hepatitis C patients treated with interferon-alpha (IFN-alpha).
• Factors influencing these QEEG changes during IFN-alpha therapy are not fully understood.

Purpose of the Study:

• To investigate the correlation between QEEG alterations and patient age during IFN-alpha treatment for chronic hepatitis C.
• To determine if age is a significant factor in the observed EEG changes.

Main Methods:

• A prospective study involving 98 chronic hepatitis C patients undergoing IFN-alpha treatment.
• Serial QEEG examinations were conducted before, during (2 and 4 weeks), and after treatment.
• EEG data analyzed for absolute powers across different frequency bands.
• Patients categorized into five age groups (20-29, 30-39, 40-49, 50-59, ≥60 years).
• Statistical analysis (repeated-measure ANOVA) used to evaluate the relationship between age and EEG power alterations.

Main Results:

• A significant positive correlation was found between increasing patient age and the magnitude of QEEG alterations.
• Alterations in slow waves, alpha 2, and fast waves became more pronounced with advancing age.
• The effect of IFN-alpha on EEG was significantly more marked in older patient cohorts (P < 0.0001).

Conclusions:

• Patient age is a critical factor influencing QEEG alterations during interferon-alpha treatment for chronic hepatitis C.
• Older patients experience more significant changes in brainwave activity when treated with IFN-alpha.
• These findings highlight the need to consider age-related differences in managing hepatitis C patients undergoing IFN-alpha therapy.