From the AGA Journals

Refined incidence rate of HCC with alcohol-associated cirrhosis encourages surveillance

The association between cirrhosis and hepatocellular carcinoma (HCC) risk is well known and therefore routine surveillance is recommended by the American Association for the Study of Liver Diseases. More recent data has shown alcohol use to be an independent risk factor for HCC along with various other cancers.

Dr. Priya Maddur Northwestern Medicine

Dr. Priya Maddur

In this systematic review and meta-analysis by Huang and colleagues, the incidence of HCC in those with alcohol-associated cirrhosis at 1, 5, and 10 years was 1%, 3% and 9%, respectively. Interestingly, this study found lower rates of hepatocellular carcinoma in those patients with cirrhosis related to alcohol as compared with NAFLD and hepatitis C. These findings may, however, be caused by an underestimate of HCC as those enrolled in a surveillance program had higher rates of HCC (18.6 vs. 4.8 per 1,000 person-years; P = .001).

Quite frequently, the focus of management in patients with alcohol-associated liver disease is alcohol cessation to prevent further decompensation, with screening often being overlooked. Previous studies have shown, however, that earlier detection is associated with improved survival. Another interesting finding of this study was that those patients who had concomitant smoking use, diabetes, and hepatic decompensation were more likely to develop HCC. When managing patients with alcohol related liver disease, confounding risk factors should be mitigated (that is, encouragement of smoking cessation, enhanced screening for diabetes, and more rigorous screening in decompensated patients).

This study brings to light the need for improved screening and concomitant risk factor mitigation for hepatocellular carcinoma given higher rates of detection in those undergoing surveillance. Larger, prospective studies are needed, however, to validate the findings in this study given the recent overall increase in rates of alcohol-associated liver disease.

Priya Maddur MD, is a visiting clinical associate professor of medicine, University of Arizona, Tucson. Dr. Maddur has no relevant disclosures.


 

FROM CLINICAL GASTROENTEROLOGY AND HEPATOLOGY

Hepatocellular carcinoma (HCC) is relatively common among patients with alcohol-associated cirrhosis, reaching a cumulative incidence of 9% at the 10-year mark, shows a large pooled analysis.

Incidence rates were higher for cohorts that underwent HCC surveillance versus those that did not undergo surveillance, suggesting that such programs offer significant benefit, lead author Daniel Q. Huang, MBBS, of the University of California, San Diego, and colleagues reported.

Daniel Q. Huang, MBBS, of the University of California at San Diego, La Jolla, California National University of Singapore

Dr. Daniel Q. Huang

“A systematic review of the incidence of HCC among patients with alcohol-associated cirrhosis has not been reported,” the investigators wrote in Clinical Gastroenterology and Hepatology, prompting the present research.

Previous studies have described a broad range of annual incidence findings for HCC in this population, from 0.6% to 5.6%, suggesting that a systematic approach was needed.

To this end, Dr. Huang and colleagues analyzed data from 18 studies that involved 148,333 patients with alcohol-associated cirrhosis. The primary analysis aimed to determine cumulative incidence rates over time, while the secondary analysis characterized the impact of participation in HCC surveillance programs.

“This meta-analysis used reconstructed individual participant data, which is considered to be the gold standard for reporting survival data because it accounts for censoring of events,” the investigators noted. “The current study provides important data that are useful for clinical practice and clinical trial design.”

The cumulative incidence rates of HCC were 1%, 3%, and 9% at 1 year, 5 years, and 10 years, respectively. Among 12 of the risk factors studied, smoking, diabetes, and decompensation were all significantly associated with rate of HCC.

“Therefore, patients with alcohol-associated cirrhosis should be screened for diabetes to identify the patients at high risk for HCC development,” the investigators wrote. “In addition, patients with alcohol-associated cirrhosis should be advised to stop smoking, while patients with hepatic decompensation should be monitored carefully for the development of HCC if clinically appropriate.”

The secondary analysis showed that HCC incidence rates were higher among patients participating in HCC surveillance programs than those who did not participate (18.6 vs. 4.8 per 1,000 person-years; P = .001).

“Patients with alcohol-associated cirrhosis are known to have lower HCC surveillance rates, which may be related to poor disease awareness, clinic time constraints caused by other active medical issues, and provider beliefs regarding the likelihood of adherence,” the investigators noted.

Increased efforts are needed to promote surveillance in this population, they added, suggesting a range of communication pathways, including social media, traditional news outlets, and direct mailing.

Dr. Huang and colleagues also suggested that the findings should be validated in large prospective studies.

The study was funded by the National Institute on Alcohol Abuse and Alcoholism, the National Institute of Environmental Health Sciences, the National Center for Advancing Translational Sciences, and others. Dr. Huang disclosed funding from the Singapore Ministry of Health’s National Medical Research Council.

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