Review Article

Atherosclerosis as Extrahepatic Manifestation of Chronic Infection with Hepatitis C Virus

Table 2

Characteristics of studies associating HCV infection and CAD.

Author, year, countryAssociationSubjectsComment

Vassalle et al., 2004 [23], ItalyCase controlPositive491 with CAD (6.3% HCV seropositive)/195 controls (2% HCV seropositive)First study that suggested HCV seropositivity as one of the risk factors affecting the onset and development of CAD

Butt et al., 2009 [24], USAProspective observational cohort study, 5 yr follow-upPositive82,083 HCV infected/89,582 HCV uninfected subjectsHCV infection is associated with a higher risk of CAD after adjustment for traditional risk factors

Alyan et al., 2008 [25], TurkeyCase controlPositive139 HCV seropositive/225 HCV seronegative patientsHCV infection is an independent predictor for increased coronary atherosclerosis (higher Reardon severity score)

Adinolfi et al., 2013 [26], Italy Retrospective cohort studyPositive820/78 HCV infectedA secondary analysis showed that HCV patients had higher prevalence of past ischemic heart disease

Oliveira et al., 2013 [27], BrazilCross-sectional comparative studyPositive62 HCV infected/11 controlsHCV infection was related to higher FRS as well as to higher pro-anti-inflammatory cytokine profile

Enger et al., 2014 [28], USARetrospective matched cohort studyPositive22,733 HCV infected/68,198 comparatorsArterial events, especially unstable angina and transient ischemic attack, were more frequently seen in HCV patients

Satapathy et al., 2013 [29], USARetrospective, case control studyPositive63 HCV infected patients/63 controlsThe prevalence and severity of CAD were higher in HCV patients who were evaluated for CAD by angiogram compared with matched non-HCV patients

Pothineni et al., 2014 [30], USARetrospective cohort studyPositive8,251 HCV antibody positive/1,434 HCV RNA positive/14,799 HCV negative patientsIncreased incidence of CHD events in patients with HCV seropositivity; the incidence is much higher in patients with detectable HCV RNA compared with patients with remote infection who are only antibody positive

Wong et al., 2014 [31], USASystematic reviewUnclear associationSystematic review

Forde et al., 2012 [32], UKRetrospective, population cohort, 3.9 yr follow-upNegative4809 HCV seropositive/71 668 seronegativeNo correlation between HCV and MI but short period of follow-up of the subjects and moreover chronic HCV infection was poorly proved

Arcari et al., 2006 [33], USACase controlNegative292 case subjects/290 controls, overall 52 HCV positiveNo association was found between HCV positivity and acute myocardial infarction

Momiyama et al., 2005 [34], JapanCase controlNegative524 with CAD (3.4% HCV infected)/106 controls