Screening for compensated advanced chronic liver disease using transient elastography in outpatient addiction clinics.

Background: Patients with substance use disorders present with many risk factors for liver disease-including alcohol, hepatitis C virus infection, and obesity-and should thus be screened for compensated advanced chronic liver disease (cACLD). Such screening could potentially be performed by outpatient addiction clinics. In this study, we aimed to assess the feasibility, acceptability, and results of cACLD screening using transient elastography (TE) among all patients attending routine follow-up visits at addiction clinics, regardless of their liver disease risk factors.

Methods: Liver fibrosis evaluation using TE was offered to every patient consulting two different addiction clinics in France, between December 2020 and September 2021, during dedicated half-day screening sessions. The screening was proposed during the patient's routine care and was performed immediately after the scheduled consultation. Patients with a liver stiffness measurement over 8 kPa were referred to a hepatology visit in the addiction clinic within 2-4 weeks.

Results: Screening was offered to 227 patients and was accepted by 116 (51%) patients. Twelve patients had a liver stiffness over 8 kPa, and nine of these patients attended the recommended specialist hepatology visit. Five patients (4.3% of those screened) were diagnosed with cACLD. Patients' acceptance of the screening was associated with older age, being on one's own or professionally inactive, and presenting with alcohol use disorder.

Conclusion: Overall, our results demonstrated that opportunistic cACLD screening using TE in outpatient addiction clinics was feasible and acceptable, with good results.