Key result
Non-alcoholic liver cirrhosis was associated with a higher rate of early-exercise corrected-QT increase (65.8% vs 16.7%) and greater QT hysteresis compared to healthy volunteers.
Why the study?
Does physical exercise reveal specific abnormalities of cardiac repolarization in patients with non-alcoholic liver cirrhosis compared to healthy volunteers?
Cross-Sectional (n=74)
Does physical exercise reveal specific abnormalities of cardiac repolarization in patients with non-alcoholic liver cirrhosis compared to healthy volunteers?
Absolute Event Rate: 65.8% vs 16.7%
Abnormal QT adaptation during exercise in cirrhosis patients supports the presence of anomalous potassium current modulation, while resting QTc prolongation correlates with signs of cirrhotic cardiomyopathy.
Exercise QT changes may flag repolarization issues in cirrhosis; hypothesis-generating and requires prospective validation before clinical use.
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GiuseppeBarletta et al. (2018) conducted a cross-sectional in Non-alcoholic liver cirrhosis and portal hypertension (n=74). Non-alcoholic liver cirrhosis vs. Healthy volunteers was evaluated on Corrected-QT increase in early-exercise. Non-alcoholic liver cirrhosis was associated with a higher rate of early-exercise corrected-QT increase (65.8% vs 16.7%) and greater QT hysteresis compared to healthy volunteers.
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