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Cost Savings in Chronic Pain Patients Initiating Peripheral Nerve Stimulation (PNS) with a 60-Day PNS Treatment
David M Dickerson1,2, Hemant Kalia3, Kevin E Vorenkamp4
1Department of Anesthesiology, Critical Care, and Pain Medicine, Endeavor Health, Evanston, IL, USA.
Introduction:
This study evaluates the financial impact on healthcare payers when chronic pain patients initiate peripheral nerve stimulation (PNS) with a 60-day percutaneous PNS (60-Day PNS) treatment versus a conventional brief PNS trial (PNS-BT) with possible follow-on of a permanently implanted PNS system (PNS-PI).
Methods:
Centers for Medicare & Medicaid Services (CMS) fee-for-service (FFS) data were analyzed to identify patients with at least 12 months of follow-up (median 26.4 months) who initiated PNS treatment with: (1) 60-Day PNS or (2) PNS-BT. An economic decision tree model assessed the cost to payers in each cohort. Clinical response to 60-Day PNS was estimated by retrospectively reviewing anonymized outcomes from a national real-world database, focusing on patients ≥ 65 years of age who were implanted with a 60-day percutaneous PNS system. For the economic model, a Monte Carlo simulation with 10,000 iterations was used to generate 95% confidence intervals, considering variability in treatment outcome probability and costs.
Results:
Based on CMS data, among 60-Day PNS patients, 18% (229/1265) proceeded to a permanently implanted PNS system with a 4% explant rate (10/229). Among PNS-BT patients, 41% (1140/2811) received a permanent implant with a 7% rate of explant (77/1140). Estimated PNS-related weighted average costs for the 60-Day PNS cohort [US$17,344; 95% confidence interval (CI): $16,168-$18,527] were lower than the PNS-BT cohort ($24,392; 95% CI $22,865-$25,941) when considering the percent of patients who advanced to a permanently implanted PNS system. The total cost per successful outcome also favored 60-Day PNS ($25,228 per success for the 60-Day PNS cohort vs. $64,502 per success for the PNS-BT cohort) as a first-line approach in PNS treatment.
Conclusions:
The findings suggest that, when PNS for chronic pain is warranted, initiating PNS with a 60-day treatment is more cost-effective than utilizing a brief conventional trial.
