Center for Outcomes Research; Department of Medicine, Division of Cardiovascular Medicine
Medical Subject Headings
Aged; Female; Health Services Accessibility; Heart Catheterization; Hospitalization; Humans; Male; Middle Aged; Myocardial Infarction; Myocardial Revascularization; Odds Ratio; Prognosis; Prospective Studies; Residence Characteristics; Risk Factors
Health Services Research
OBJECTIVE: To investigate the relation between access to a cardiac catheterisation laboratory and clinical outcomes in patients admitted to hospital with suspected acute coronary syndrome.
DESIGN: Prospective, multinational, observational registry.
SETTING: Patients enrolled in 106 hospitals in 14 countries between April 1999 and March 2003.
PARTICIPANTS: 28,825 patients aged > or = 18 years.
MAIN OUTCOME MEASURES: Use of percutaneous coronary intervention or coronary artery bypass graft surgery, death, infarction after discharge, stroke, or major bleeding.
RESULTS: Most patients (77%) across all regions (United States, Europe, Argentina and Brazil, Australia, New Zealand, and Canada) were admitted to hospitals with catheterisation facilities. As expected, the availability of a catheterisation laboratory was associated with more frequent use of percutaneous coronary intervention (41% v 3.9%, P < 0.001) and coronary artery bypass graft (7.1% v 0.7%, P < 0.001). After adjustment for baseline characteristics, medical history, and geographical region there were no significant differences in the risk of early death between patients in hospitals with or without catheterisation facilities (odds ratio 1.13, 95% confidence interval 0.98 to 1.30, for death in hospital; hazard ratio 1.05, 0.93 to 1.18, for death at 30 days). The risk of death at six months was significantly higher in patients first admitted to hospitals with catheterisation facilities (hazard ratio 1.14, 1.03 to 1.26), as was the risk of bleeding complications in hospital (odds ratio 1.94, 1.57 to 2.39) and stroke (odds ratio 1.53, 1.10 to 2.14).
CONCLUSIONS: These findings support the current strategy of directing patients with suspected acute coronary syndrome to the nearest hospital with acute care facilities, irrespective of the availability of a catheterisation laboratory, and argue against early routine transfer of these patients to tertiary care hospitals with interventional facilities.
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Citation: BMJ. 2005 Feb 26;330(7489):441. Epub 2005 Jan 21. Link to article on publisher's site