Research article summary (published 30 May 1999):

Trends in clinical and economic outcomes of coronary angioplasty from 1992 to 1995: a population-based analysis.

Full Abstract

BACKGROUND: The impact of recent developments in coronary angioplasty on the broad spectrum of patients treated in routine practice is largely undefined. Analysis of population-based data can provide insight into trends in clinical outcomes and associated costs of coronary angioplasty procedures. METHODS AND RESULTS: With the use of a comprehensive hospital discharge database covering more than 11 million Canadians, we analyzed 12,748 first-time angioplasty procedures performed from 1992 to 1995 inclusive. Patient demographics and major adverse events were recorded. With the use of forward linkage, readmissions within 12 months were classified according to procedure performed and/or most responsible diagnosis. The proportion of patients readmitted, the number of readmissions per index procedure, and diagnosis-specific readmission costs were compared by calendar year. Over the 4-year study period, there was a 21% increase in the annual volume of index procedures. There were no statistically significant differences between 1992 and 1995 in sex distribution, mean age, comorbid conditions, length of stay, or need for coronary bypass surgery related to the index procedure. The all-cause readmission rate declined from 51.6% to 47.2% between 1992 and 1995 (P <.001), primarily because of a decline in the admission rate for repeat revascularization from 24.8% to 19.6% (P <.001). The 12-month readmission cost declined by $435 (1994 Canadian dollars) per patient. CONCLUSIONS: The clinical outcomes of coronary angioplasty in a broad cohort of patients have improved in recent years. Although readmissions within 1 year of an angioplasty procedure remain common, the number related to repeat revascularization has declined, with an associated decline in downstream costs.

Author information

Author/s: Cohen, E A (EA); Young, W (W); Slaughter, P M (PM); Oh, P (P); Naylor, C D (CD);

Affiliation: Department of Medicine, Sunnybrook Health Science Centre, University of Toronto, Canada. eric.cohen(-atsign-)sunnybrook.on.ca

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: American heart journal (Am Heart J), published in UNITED STATES. (Language: eng)

Reference: 1999-Jun; vol 137 (issue 6) : pp 1012-8

Dates: Created 1999/07/02; Completed 1999/07/02; Revised 2006/11/15;

PMID: 10347325, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

Comments and Corrections

CommentIn: Am Heart J. 1999 Jun;137(6):979-82. (PMID: 10347313)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Aged Angioplasty, Transluminal, Percutaneous Coronary - economics; statistics & numerical data; utilization Cohort Studies Cost-Benefit Analysis Hospital Costs - statistics & numerical data; trends Hospitalization - economics; statistics & numerical data; trends Humans

Humans Middle Aged Ontario Patient Readmission - economics; statistics & numerical data; trends Retreatment - economics; statistics & numerical data; trends Stents - economics; statistics & numerical data; trends Treatment Outcome

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