Related Experiment Video
Updated: Jun 10, 2025

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
Published on: December 11, 2013
Association between Regional Market Competition and Early Femoropopliteal Interventions for Claudication
Chen Dun1, M Libby Weaver2, Sanuja Bose3
1Department of Biomedical Informatics and Data Science, Johns Hopkins University School of Medicine, Baltimore, MD; Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD.
Regional market competition influences early peripheral vascular interventions (PVIs) for claudication. Higher competition markets showed lower amputation rates, but early PVI use was linked to worse outcomes.
Area of Science:
- Vascular Surgery
- Health Services Research
- Health Economics
Background:
- Regional market competition significantly impacts surgical practice patterns.
- Understanding this competition's role in peripheral vascular interventions (PVIs) for claudication is crucial.
Purpose of the Study:
- To investigate the association between regional market competition and the utilization of early PVIs for claudication.
- To assess the subsequent impact of early PVI utilization on clinical outcomes.
Main Methods:
- Retrospective analysis of Medicare fee-for-service claims (2019-2021).
- Calculation of Herfindahl-Hirschman Index to determine market competition.
- Multivariable logistic regression and Cox proportional hazards models were employed.
Main Results:
- In a cohort of 300,492 patients with claudication, 6.1% received early PVI.
- Moderate competition markets showed the highest odds of early PVI.
- High and moderate competition markets were associated with lower major amputation hazards.
- Early PVI was linked to worse clinical outcomes, irrespective of market competition.
Conclusions:
- A complex relationship exists between market competition, early PVI use, and patient outcomes in claudication.
- Early PVI utilization for claudication is associated with poorer clinical outcomes, even when considering market competition levels.
More Related Videos
07:25Predicting Amputation using Local Circulating Mononuclear Progenitor Cells in Angioplasty-treated Patients with Critical Limb Ischemia
Published on: September 22, 2020
08:16High-Resolution Three-Dimensional Imaging of the Footpad Vasculature in a Murine Hindlimb Gangrene Model
Published on: March 16, 2022
Related Concept Videos
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Peripheral Artery Disease III: Interprofessional Care
Peripheral Artery Disease V: Postoperative Nursing Management
Peripheral Artery Disease IV: Nursing Management
Varicose Veins II: Diagnostic Studies and Interprofessional Care