Trends in statin utilization among adults with severe peripheral artery disease including critical limb ischemia in an integrated healthcare delivery system

Autor: Teresa N. Harrison, Somjot S Brar, Songyue Chen, Stephanie R. Reading, Katherine E Mues, Kristi Reynolds, Jin-Wen Y Hsu, Kiran Philip, Lei Qian, Keri L. Monda
Rok vydání: 2019
Předmět:
Zdroj: Vascular medicine (London, England). 25(1)
ISSN: 1477-0377
Popis: Evidence suggests that statin therapy in patients with peripheral artery disease (PAD) is beneficial yet use remains suboptimal. We examined trends in statin use, intensity, and discontinuation among adults aged ⩾ 40 years with incident severe PAD and a subset with critical limb ischemia (CLI) between 2002 and 2015 within an integrated healthcare delivery system. Discontinuation of statin therapy was defined as the first 90-day gap in treatment within 1 year following PAD diagnosis. We identified 11,059 patients with incident severe PAD: 31.1% ( n = 3442) with CLI and 68.9% ( n = 7617) without CLI. Mean (SD) age was 68.6 (11.3) years, 60.5% were male, 54.2% white, 23.2% Hispanic, and 16.2% black. Statin use in the year before diagnosis increased from 50.4% in 2002 to 66.0% in 2015 (CLI: 43.7% to 68.0%; without CLI: 53.1% to 64.2%, respectively). The proportion of patients on high-intensity statins increased from 7.3% in 2002 to 41.9% in 2015 (CLI: 7.2% to 39.4%; without CLI: 7.4% to 44.2%, respectively). Of the 40.5% ( n = 4481) who were not on a statin in the year before diagnosis, 13.5% ( n = 607) newly initiated therapy within 1 month (CLI: 10.1% ( n = 150); without CLI: 15.3% ( n = 457)). Following diagnosis, 12.5% ( n = 660) discontinued statin therapy within 1 year (CLI: 15.5% ( n = 202); without CLI: 11.5% ( n = 458)). Although use of statins increased from 2002 to 2015, a substantial proportion of the overall PAD and CLI subpopulation remained untreated with statins, representing a significant treatment gap in a population at high risk for cardiovascular events and adverse limb outcomes.
Databáze: OpenAIRE