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Impact of annual operator and institutional volume on percutaneous coronary intervention outcomes: a 5-year United States experience (2005-2009)
Journal article   Open access   Peer reviewed

Impact of annual operator and institutional volume on percutaneous coronary intervention outcomes: a 5-year United States experience (2005-2009)

Apurva O Badheka, Nileshkumar J Patel, Peeyush Grover, Vikas Singh, Nilay Patel, Shilpkumar Arora, Ankit Chothani, Kathan Mehta, Abhishek Deshmukh, Ghanshyambhai T Savani, …
Circulation (New York, N.Y.), Vol.130(16), pp.1392-1406
10/14/2014
DOI: 10.1161/CIRCULATIONAHA.114.009281
PMID: 25189214
url
https://doi.org/10.1161/CIRCULATIONAHA.114.009281View
Published (Version of record) Open Access

Abstract

The relationship between operator or institutional volume and outcomes among patients undergoing percutaneous coronary interventions (PCI) is unclear. Cross-sectional study based on the Healthcare Cost and Utilization Project's Nationwide Inpatient Sample between 2005 to 2009. Subjects were identified by International Classification of Diseases, 9(th) Revision, Clinical Modification procedure code, 36.06 and 36.07. Annual operator and institutional volumes were calculated using unique identification numbers and then divided into quartiles. Three-level hierarchical multivariate mixed models were created. The primary outcome was in-hospital mortality; secondary outcome was a composite of in-hospital mortality and peri-procedural complications. A total of 457,498 PCIs were identified representing a total of 2,243,209 PCIs performed in the United States during the study period. In-hospital, all-cause mortality was 1.08%, and the overall complication rate was 7.10%. The primary and secondary outcomes of procedures performed by operators in 4(th) [annual procedural volume; primary and secondary outcomes] [>100; 0.59% and 5.51%], 3(rd) [45-100; 0.87% and 6.40%], and 2(nd) quartile [16-44; 1.15% and 7.75%] were significantly less (P<0.001) when compared with those by operators in the 1(st) quartile [≤15; 1.68% and 10.91%]. Spline analysis also showed significant operator and institutional volume outcome relationship. Similarly operators in the higher quartiles witnessed a significant reduction in length of hospital stay and cost of hospitalization (P<0.001). Overall in-hospital mortality after PCI was low. An increase in operator and institutional volume of PCI was found to be associated with a decrease in adverse outcomes, length of hospital stay, and cost of hospitalization.
Multivariate Analysis United States - epidemiology Cross-Sectional Studies Hospital Mortality Risk Assessment Percutaneous Coronary Intervention - mortality Hospitals, Low-Volume - statistics & numerical data Humans Middle Aged Databases, Factual - statistics & numerical data Male Coronary Artery Disease - mortality Coronary Artery Disease - therapy Female Aged Hospitals, High-Volume - statistics & numerical data Percutaneous Coronary Intervention - adverse effects Length of Stay - statistics & numerical data

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