Cost and cost-effectiveness of three strategies for implementing motivational interviewing for substance misuse on medical inpatient units

The addiction consultation service for hospitalized patients with substance use disorder: An integrative review of the evidence

INTRODUCTION

The Addiction Consultation Service has emerged as a model of care for hospitalized patients with substance use disorder. The aim of this integrative review is to characterize the Addiction Consultation Service in general hospital settings, assess its impact on clinical outcomes, identify knowledge gaps, and offer guidance for implementation.

METHODS

We conducted an integrative review of studies from January 2002 to August 2023, applying specific inclusion criteria to collect study design, service characteristics, staffing models, utilization, and health outcomes. Additionally, a comprehensive quality appraisal was conducted for all studies considered for inclusion.

RESULTS

Findings from 41 studies meeting inclusion criteria were synthesized and tabulated. Study designs included six reports from three randomized controlled trials, five descriptive studies, and 30 observational studies. The most common study setting was the urban academic medical center. Studies evaluated the structure, process, and outcomes of the Addiction Consultation Service. A majority of studies, particularly those utilizing more rigorous designs, reported positive outcomes involving medication initiation, linkage to post-discharge care, and utilization outcomes.

CONCLUSIONS

The Addiction Consultation Service care model improves quality of care for hospitalized patients with substance use disorder. Additional research is needed to assess its effectiveness across diverse medical settings, determine the effectiveness of varying staffing models, demonstrate impactful outcomes, and establish funding mechanisms to support sustainability.

Systematic review of training in cognitive-behavioral therapy: Summarizing effects, costs and techniques

With the steadily growing importance of psychotherapeutic care, there is also an increasing need for high-quality training. We analyze the literature published between 2009 and 2022 on the effectiveness of training in cognitive behavioral therapy. The review addresses current gaps in the literature by focusing on the description of specific training components and their associated costs, as well as examining therapist-level predictors of training effectiveness. Our findings confirm the effect of additional supervision on both therapist competence and patient outcomes. Instructor-led training and self-guided web-based training seem to moderately increase competence, especially when targeting specific and highly structured treatments or skills. The level of prior training and experience of a therapist appears to predict the strength of training-related gains in competence. Few studies analyzed the differential effect of certain elements of training (e.g., the amount of active learning strategies) and training costs were generally not reported. Future studies should replicate or expand the existing evidence on active ingredients and therapist-level predictors of training effectiveness. Costs should be systematically reported to enhance the comparability of different training strategies.

Payment and Financing for Substance Use Screening and Brief Intervention for Adolescents and Adults in Health, School, and Community Settings

Screening and brief intervention (SBI) is an evidence-based, cost-effective practice to address unhealthy substance use. With SBI services expanding beyond healthcare settings (e.g., schools, community organizations) and reaching younger populations, sustainability efforts must consider payment and financing. This narrative review incorporated rapid scoping review methods and a search of the gray literature to determine payment and financing approaches for SBI with adolescents and to describe related barriers and facilitators for its sustainability. We sought information relevant to adolescents and settings in which they receive SBI, but also reviewed sources with an adult focus. Few peer-reviewed articles met inclusion criteria, and those mostly highlighted healthcare settings. School-based settings were better described in the gray literature; little was found about community settings. SBI is mostly paid through grant funding and public and commercial insurance; school-based settings use a range of approaches including grants, public insurance, and other public funding. We call upon researchers and providers to describe the payment and financing of SBI, to inform how the uptake of SBI may be practicable and sustainable. The increasing activation and use of insurance billing codes, and the expansion of SBI beyond healthcare, is encouraging to address unhealthy substance use by adolescents.

Cost-Effectiveness of Motivational Interviewing to Reduce Alcohol and Cannabis Use Among Patients With Depression

OBJECTIVE

Motivational interviewing (MI) is a promising intervention for helping patients with mental health problems reduce their substance use. Examining the cost-effectiveness of MI and associations between MI and the use of health services can inform appropriate intervention strategies for these patients.

METHOD

Kaiser Permanente adult patients with depression symptoms (Patient Health Questionnaire [PHQ-9] score > 5) seen in outpatient psychiatry (N = 302) who reported unhealthy alcohol use or other substance use (primarily cannabis) were randomized to three sessions of MI (intervention) or printed literature (control) with telephone follow-up interviews at 6 and 12 months. Cost-effectiveness analyses compared intervention costs associated with 30-day abstinence from unhealthy alcohol use (i.e., any days of ≥4/≥5 drinks for women/men) and cannabis use. Multivariable analyses examined associations between MI and healthcare utilization at 12 months (emergency department, primary care, psychiatry, and addiction treatment).

RESULTS

MI resulted in greater likelihood of abstaining from unhealthy alcohol use (70.0% vs. 60.2%, p < .01) and cannabis use (74.6% vs. 63.9%, p < .01) than the control at 6 months, but outcomes did not differ at 12 months. The 6-month incremental cost-effectiveness ratios were $1,207-$1,523 per abstinent patient for unhealthy drinking and $1,040-$1,313 per abstinent patient for cannabis. There were no differences between groups on health service utilization.

CONCLUSIONS

MI cost more than the control condition but yielded better outcomes at 6 months; MI had no relationship to health service utilization. Findings can inform implementation of substance use interventions through understanding MI's potential clinical and cost impact and its relationship to health services use.

Management of Substance Use Disorders in a Patient With Left Ventricular Assist Device

We present a case of common challenges in assessment and treatment of substance use disorders in patients with advanced heart failure requiring left ventricular assist device (LVAD). Top experts in the field of consultation-liaison psychiatry, cardiology, and cardiac surgery provide guidance for this commonly encountered clinical case based on their experience and review of the available literature. Key teaching topics include the role of LVAD in heart failure management, the impact of substance use disorder on heart failure and LVAD patient outcomes, and recommendations for assessment and management of substance use disorder in a patient with LVAD. Specifically, we highlight the challenges of assessing for substance use disorder in LVAD candidates and the limited literature available to guide treatment in this challenging patient population.