Key result
Elective cardiac catheterization in New York State yielded a significantly lower rate of obstructive CAD compared to Ontario (30.4% vs 44.8%; P<0.001), reflecting lower pretest probability.
Why the study?
Does the probability of detecting obstructive CAD during elective cardiac catheterization differ between patients in New York State and Ontario?
Population
73,047 patients without a history of cardiac disease who underwent elective cardiac catheterization between…
Comparison
Elective cardiac catheterization in New York State vs Elective cardiac catheterization in Ontario
Design
Cohort
Follow-up
30 days
Authors
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NY's lower obstructive CAD yield may signal overutilization; leaves open optimal selection thresholds for elective catheterization in stable patients.
Observational (n=73,047)
Yes
Does the probability of detecting obstructive CAD during elective cardiac catheterization differ between patients in New York State and Ontario?
Absolute Event Rate: 30.4% vs 44.8%
p-value: p=< .001
Patients undergoing elective cardiac catheterization in New York State have a significantly lower rate of obstructive CAD compared to Ontario, likely due to a higher proportion of low-risk patients being selected for the procedure in New York.
Ko et al. (2013) conducted an observational in Obstructive coronary artery disease (n=73,047). Elective cardiac catheterization in New York State vs. Elective cardiac catheterization in Ontario was evaluated on Observed rate of obstructive CAD (≥50% left main or ≥70% major epicardial stenosis) (p=< .001). Elective cardiac catheterization in New York State yielded a significantly lower rate of obstructive CAD compared to Ontario (30.4% vs 44.8%; P<0.001), reflecting lower pretest probability.
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