Grayken lessons: the role of an interdisciplinary endocarditis working group in evaluating and optimizing care for a woman with opioid use disorder requiring a second tricuspid valve replacement.

BACKGROUND: Injection drug use-related endocarditis is increasingly common among hospitalized patients in the United States, and associated morbidity and mortality are rising. CASE PRESENTATION: Here we present the case of a 34-year-old woman with severe opioid use disorder and multiple episodes of infective endocarditis requiring prosthetic tricuspid valve replacement, who developed worsening dyspnea on exertion. Her echocardiogram demonstrated severe tricuspid regurgitation with a flail prosthetic valve leaflet, without concurrent endocarditis, necessitating a repeat valve replacement. Her care was overseen by our institution's Endocarditis Working Group, a multidisciplinary team that includes providers from addiction medicine, cardiology, infectious disease, cardiothoracic surgery, and neurocritical care. The team worked together to evaluate her, develop a treatment plan for her substance use disorder in tandem with her other medical conditions, and advocate for her candidacy for valve replacement. CONCLUSIONS: Multidisciplinary endocarditis teams such as these are important emerging innovations, which have demonstrated improvements in outcomes for patients with infective endocarditis and substance use disorders, and have the potential to reduce bias by promoting standard-of-care treatment.