Why the study?
Does the presence of coronary collaterals affect hemodynamic and angiographic characteristics in patients with significant CAD and normal LV systolic function?
Population
231 consecutive patients with significant coronary artery disease and normal left ventricular systolic…
Comparison
Presence of coronary collaterals (n=120) vs Absence of coronary collaterals (n=111)
Design
Cross-sectional
Authors
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Collateral presence marks more extensive CAD without altering LVEDP; leaves open protective effects on diastolic function in observational data.
Does the presence of coronary collaterals affect hemodynamic and angiographic characteristics in patients with significant CAD and normal LV systolic function?
Coronary collaterals are associated with more extensive coronary disease and total occlusions but appear to preserve left ventricular systolic and diastolic performance at rest.
Carmel et al. (1998) studied this question.
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