Journal of medical economics · 2025
Effects of liposomal bupivacaine (LB) and provider experience with LB on service utilization, clinical outcomes, and Medicare expenditures among fee-for-service (FFS) beneficiaries.
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Pal Sarmistha, Beins Michael, Dobson Al, Kim Sung, Kim Seung, Heath Steven, Zirath Richa
Аннотация
OBJECTIVE: To assess the effects of Liposomal Bupivacaine (LB) and provider LB use rate for 6 months after discharge on service utilization, clinical outcomes, and Medicare expenditures among Fee for Service (FFS) beneficiaries who have undergone hospital outpatient department (HOPD) procedures.
METHODS: 100% Medicare Research Identifiable Files data from 2019 to 2023 was utilized. Medicare FFS beneficiaries with the top 100 HOPD surgical procedures where LB was utilized were included in the study and divided into two cohorts: received LB (treatment) and did not receive LB (comparison) during the surgical procedure. An Inverse Probability Treatment Weighting Propensity Score model was estimated to balance treatment and control groups. We estimated Emergency Department (ED) admission, Short Term Acute Care Hospitals (STACH) admission, mortality, Opioid Use Disorder (OUD) and Opioid prescription fill events, and spending metrics.
RESULTS: LB use contributed to significant reductions in ED admission (9%; 23.28 vs. 25.69%), STACH admission (8%; 11.61 vs. 12.65%), mortality (39%; 0.67 vs. 1.1%) and opioid prescription fills (6%; 1.8 vs. 1.92) within 180-days post-discharge. Total Medicare expenditures (180-day episode) were $245 lower for the LB user ($9,645 vs. $9,891). For each 10-percentage point increase in provider LB use-rate, the likelihood of ED admission, STACH admission, mortality, and OUD decreased by 0.1, 0.15, 0.01 and 0.02 percentage points, respectively. Total Medicare expenditures (180-day episode) were reduced by $258 for every one percentage point increase in LB use-rate.
CONCLUSION: Use of LB and provider LB use rate are associated with improved patient clinical, service utilization, and expenditure outcomes.
METHODS: 100% Medicare Research Identifiable Files data from 2019 to 2023 was utilized. Medicare FFS beneficiaries with the top 100 HOPD surgical procedures where LB was utilized were included in the study and divided into two cohorts: received LB (treatment) and did not receive LB (comparison) during the surgical procedure. An Inverse Probability Treatment Weighting Propensity Score model was estimated to balance treatment and control groups. We estimated Emergency Department (ED) admission, Short Term Acute Care Hospitals (STACH) admission, mortality, Opioid Use Disorder (OUD) and Opioid prescription fill events, and spending metrics.
RESULTS: LB use contributed to significant reductions in ED admission (9%; 23.28 vs. 25.69%), STACH admission (8%; 11.61 vs. 12.65%), mortality (39%; 0.67 vs. 1.1%) and opioid prescription fills (6%; 1.8 vs. 1.92) within 180-days post-discharge. Total Medicare expenditures (180-day episode) were $245 lower for the LB user ($9,645 vs. $9,891). For each 10-percentage point increase in provider LB use-rate, the likelihood of ED admission, STACH admission, mortality, and OUD decreased by 0.1, 0.15, 0.01 and 0.02 percentage points, respectively. Total Medicare expenditures (180-day episode) were reduced by $258 for every one percentage point increase in LB use-rate.
CONCLUSION: Use of LB and provider LB use rate are associated with improved patient clinical, service utilization, and expenditure outcomes.