The Association Between Chronic Hepatitis B, Chronic Hepatitis C, Sustained Liver Damage, and Features of Increased Cardiovascular Risk

Abstract

It is thought that chronic liver disease affects a person's risk of cardiovascular disease (CVD) development. The aim of this study was to assess the effect of Chronic Hepatitis B (HBV) infection, Chronic Hepatitis C (HCV) infection, and liver damage on cardiovascular risk and selected vascular parameters contributing to CVD risk. This case-control study included a group of 114 patients composed of 34 patients with HBV, 35 patients with HCV, and 45 patients as the control group. Cardiovascular risk was assessed by analyzing classic risk factors, and the SCORE system. The following arterial properties were analyzed using applanation tonometry with SphygmoCor Vx technology: central systolic blood pressure (cSBP), central pulse pressure, augmentation pressure, augmentation index, and carotid-femoral pulse wave velocity (PWV). Asymmetric dimethyloarginine (ADMA) blood levels were analyzed using ELISA as a marker of vascular function. In a univariable analysis we found no significant differences between the hepatitis B, hepatitis C, and control groups in terms of PWV (respectively: median 7.2 [Q25-Q75 6.4-8.5], 7.3 [6.9-8.7], 7.8 [6.5-8.9]), cSBP (115 [109-126], 118 [107-123], 116 [107-129]), ADMA (0.52 [0.47-0.60], 0.53 [0.45-0.62], 0.58 [0.51-0.63]), SCORE (0 [0-1], 0 [0-2], 0 [0-2]). No significant differences in cardiovascular variables were observed between cirrhotic and non-cirrhotic patients. A multivariable analysis confirmed the above findings. (PWV, p=0 . 29; cSBP, p=0.26; ADMA, p=0.19). We concluded that chronic hepatitis B or C was not independently associated with an adverse cardiovascular risk profile nor with an unfavorable pattern of vascular parameters contributing to CVD risk in our study population, even in the case of liver cirrhosis. The same was true for blood ADMA levels.