Abstract
Background
Persons who inject drugs (PWID) are frequently admitted for serious injection related infections (SIRI). Outcomes and adherence to oral antibiotics for PWID with patient directed discharge (PDD) remain understudied.
Methods
We conducted a prospective multicenter bundled quality improvement project of PWID with SIRI at 3 hospitals in Missouri. All PWID with SIRI were offered multidisciplinary care while inpatient, including the option of addiction medicine consultation and medications for opioid use disorder (MOUD). All patients were offered oral antibiotics in the event of a PDD either at discharge, or immediately after discharge through an ID telemedicine clinic. Additional support services included health coaches, therapist, case manager, free clinic follow up, and medications in an outpatient bridge program. Patient demographics, comorbidities, 90-day readmissions, and substance use disorder clinic follow up were compared between PWID with PDD on oral antibiotics and those that completed IV antibiotics, using an as treated approach.
Results
Of 166 PWID with SIRI, 61 completed IV antibiotics inpatient (37%) while 105 had a PDD on oral antibiotics (63%). There was no significant difference in 90-day readmission rates between groups (p=0.819). For PWID with a PDD on oral antibiotics, 7.6% had documented non-adherence to antibiotics, 67% had documented adherence and 23% were lost to follow-up. Factors protective against readmission included antibiotic and MOUD adherence, engagement with support team, and clinic follow up.
Conclusions
PWID with SIRI who experience a PDD should be provided with oral antibiotics. Multidisciplinary outpatient support services are needed for PWID with PDD on oral antibiotics.