Percutaneous Coronary Intervention Facility Access and Clinical Outcomes Among Patients With Acute Myocardial Infarction
- 1Department of Acquisition, Finance, and Manpower, Naval Postgraduate School, Monterey, California
- 2Department of Emergency Medicine, University of California, San Francisco
Abstract
Importance: The proliferation of percutaneous coronary intervention (PCI) facilities across the US has raised questions about whether expanding capacity improves outcomes in areas already served vs those without prior access.
Objective: To evaluate the association between the opening of PCI-capable facilities and outcomes following acute myocardial infarction (AMI) in communities with and without baseline PCI access.
Design, Setting, and Participants: This cohort study used California data from inpatient, emergency department, and ambulatory surgery encounters from January 1, 2011, to December 31, 2022, including all adults hospitalized with a primary diagnosis of AMI. Zip code communities were categorized by baseline (2011) access to PCI-capable facilities within a 30-minute drive.
Exposure: Opening of a PCI-capable facility within 30 minutes of a community’s zip code during the study period.
Main Outcomes and Measures: Primary outcomes were (1) admission to a PCI-capable facility, (2) receipt of PCI during the index hospitalization, (3) unscheduled acute care visit within 30 days, and (4) all-cause mortality at 30 days and 1 year. Linear probability models with community and time-fixed effects estimated changes in outcomes following PCI facility openings separately for communities with and without baseline access.
Results: Among 590 282 patients with AMI (157 435 younger than age 60 years [27%]; 222 773 female [38%]; 63 460 Asian [11%], 129 137 Hispanic [22%], 315 326 White [53%]), 500 778 (85%) lived in communities with baseline PCI access, and 89 504 (15%) lived in communities without; 18 805 patients (21%) without baseline access experienced a PCI opening. Openings in communities without baseline access were associated with a 30.0 percentage point (pp) increase (95% CI, 28.2 to 31.8 pp) in admission to PCI-capable hospitals and a 5.1 pp increase (95% CI, 3.3 to 7.0 pp) in PCI receipt, along with reductions in 30-day (–1.8 pp; 95% CI, –3.2 to –0.5 pp) and 1-year (–2.8 pp; 95% CI, –4.7 to –1.0 pp) mortality. In contrast, openings in communities with baseline access were associated with smaller gains in admission (1.5 pp; 95% CI, 1.1 to 1.9 pp), modest increases in PCI use (1.0 pp; 95% CI, 0.5 to 1.6 pp), decreases in unscheduled visits within 30 days (–0.7 pp; 95% CI, –1.2 to –0.2 pp), and no mortality change. Sensitivity analyses restricted to higher-volume PCI centers (50 annual cases or more) yielded consistent findings.
Conclusions and Relevance: In this cohort study of 590 282 patients with AMI in California, opening new PCI facilities was associated with substantial improvements in communities without prior PCI availability, including a 53% relative increase in access to admission, 16% increase in PCI use, and 20% and 15% reductions in 30-day and 1-year mortality, respectively. In contrast, already served areas showed smaller benefits and no mortality improvement. PCI expansion should prioritize underserved regions to maximize population-level benefits and avoid inefficient duplication of services.
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BibTeX
@article{shen2026percutaneous,
title = {{Percutaneous Coronary Intervention Facility Access and Clinical Outcomes Among Patients With Acute Myocardial Infarction}},
author = {Yu-Chu Shen and Renee Y. Hsia},
journal = {JAMA network open},
year = {2026},
month = oct,
doi = {10.1001/jamanetworkopen.2026.38687},
url = {https://europepmc.org/article/PMC/PMC13659571},
note = {CC BY},
}
RIS
TY - JOUR
TI - Percutaneous Coronary Intervention Facility Access and Clinical Outcomes Among Patients With Acute Myocardial Infarction
AU - Yu-Chu Shen
AU - Renee Y. Hsia
PY - 2026
DA - 2026/10/01
JO - JAMA network open
DO - 10.1001/jamanetworkopen.2026.38687
UR - https://europepmc.org/article/PMC/PMC13659571
AB - Importance: The proliferation of percutaneous coronary intervention (PCI) facilities across the US has raised questions about whether expanding capacity improves outcomes in areas already served vs those without prior access. Objective: To evaluate the association between the opening of PCI-capable facilities and outcomes following acute myocardial infarction (AMI) in communities with and without baseline PCI access. Design, Setting, and Participants: This cohort study used California data from inpatient, emergency department, and ambulatory surgery encounters from January 1, 2011, to December 31, 2022, including all adults hospitalized with a primary diagnosis of AMI. Zip code communities were categorized by baseline (2011) access to PCI-capable facilities within a 30-minute drive. Exposure: Opening of a PCI-capable facility within 30 minutes of a community’s zip code during the study period. Main Outcomes and Measures: Primary outcomes were (1) admission to a PCI-capable facility, (2) receipt of PCI during the index hospitalization, (3) unscheduled acute care visit within 30 days, and (4) all-cause mortality at 30 days and 1 year. Linear probability models with community and time-fixed effects estimated changes in outcomes following PCI facility openings separately for communities with and without baseline access. Results: Among 590 282 patients with AMI (157 435 younger than age 60 years [27%]; 222 773 female [38%]; 63 460 Asian [11%], 129 137 Hispanic [22%], 315 326 White [53%]), 500 778 (85%) lived in communities with baseline PCI access, and 89 504 (15%) lived in communities without; 18 805 patients (21%) without baseline access experienced a PCI opening. Openings in communities without baseline access were associated with a 30.0 percentage point (pp) increase (95% CI, 28.2 to 31.8 pp) in admission to PCI-capable hospitals and a 5.1 pp increase (95% CI, 3.3 to 7.0 pp) in PCI receipt, along with reductions in 30-day (–1.8 pp; 95% CI, –3.2 to –0.5 pp) and 1-year (–2.8 pp; 95% CI, –4.7 to –1.0 pp) mortality. In contrast, openings in communities with baseline access were associated with smaller gains in admission (1.5 pp; 95% CI, 1.1 to 1.9 pp), modest increases in PCI use (1.0 pp; 95% CI, 0.5 to 1.6 pp), decreases in unscheduled visits within 30 days (–0.7 pp; 95% CI, –1.2 to –0.2 pp), and no mortality change. Sensitivity analyses restricted to higher-volume PCI centers (50 annual cases or more) yielded consistent findings. Conclusions and Relevance: In this cohort study of 590 282 patients with AMI in California, opening new PCI facilities was associated with substantial improvements in communities without prior PCI availability, including a 53% relative increase in access to admission, 16% increase in PCI use, and 20% and 15% reductions in 30-day and 1-year mortality, respectively. In contrast, already served areas showed smaller benefits and no mortality improvement. PCI expansion should prioritize underserved regions to maximize population-level benefits and avoid inefficient duplication of services.
SN - 2574-3805
ER -