• Sumeet Singh-Tan, Kristine Torres-Lockhart, Andrea Jakubowski, Tiffany Lu, Joanna Starrels, Patricia De Lima, Julia Arnsten, Shadi Nahvi, and William Southern.
• Division of Hospital Medicine, Department of Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, 111 East 210th Street, Bronx, NY, 10467, USA. ssinght@montefiore.org.
• J Gen Intern Med. 2023 Nov 1; 38 (14): 321632233216-3223.

BackgroundAlcohol use disorder (AUD) is the most prevalent substance use disorder, but evidence-based medications to treat AUD (MAUD), including naltrexone and acamprosate, are substantially underutilized. Hospitalization provides an opportunity to start MAUD for patients who may not otherwise seek treatment. Addiction consultation services (ACSs) have been increasingly utilized to ensure appropriate treatment. There is little research examining the effect of an ACS on health outcomes among patients with AUD.ObjectiveTo determine the association between an ACS consultation and provision of MAUD during admission and MAUD at discharge among admissions with AUD.DesignRetrospective study comparing admissions which received an ACS consult and propensity score-matched historical control admissions. Subjects A total of 215 admissions with a primary or secondary diagnosis of AUD who received an ACS consult and 215 matched historical control admissions. Intervention ACS consultation from a multidisciplinary team offering withdrawal management, substance use disorder treatment, patient-centered counseling, discharge planning, and linkage to outpatient care for patients with substance use disorders, including AUD. Main Measures Primary outcomes were initiation of new MAUD during admission and new MAUD at discharge. Secondary outcomes were patient-directed discharge, time to 7- and 30-day readmission, and time to 7- and 30-day post-discharge ER visit. Key Results Among 430 admissions with AUD, those that received an ACS consultation were significantly more likely to receive new inpatient MAUD (33.0% vs 0.9%; OR 52.5 [CI 12.6-218.6]) and significantly more likely to receive new MAUD at discharge (41.4% vs 1.9%; OR 37.3 [13.3-104.6]), compared with historical controls. ACS was not significantly associated with patient-directed discharge, time to readmission, or time to post-discharge ER visit.ConclusionsACS was associated with a large increase in provision of new inpatient MAUD and new MAUD at discharge when compared to propensity-matched historical controls.© 2023. The Author(s), under exclusive licence to Society of General Internal Medicine.

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