Key result
Acute coronary occlusion during PTCA aggravated pre-existing systolic and diastolic abnormalities in stable angina, but caused only minor systolic deterioration in unstable angina.
Why the study?
Does acute coronary occlusion during PTCA alter left ventricular long axis function in patients with stable and unstable angina?
Population
36 patients, mean age 60 years, with significant coronary artery disease undergoing PTCA, including 14 with…
Comparison
Single and repeated coronary artery occlusions… vs Baseline function before balloon inflation and…
Design
Cohort
Follow-up
Acute (during PTCA)
Authors
Loading...
Supports dissociation of resting LV dysfunction from acute ischemia in unstable angina; leaves open whether long-axis changes predict outcomes.
Observational (n=57)
No
Does acute coronary occlusion during PTCA alter left ventricular long axis function in patients with stable and unstable angina?
Resting abnormalities of left ventricular function in unstable angina are dissociated from acute changes in coronary flow, unlike in stable angina where balloon inflation aggravates abnormalities.
Henein et al. (1997) conducted an observational in Stable and unstable angina (n=57). Acute coronary occlusion (balloon inflation during PTCA) vs. Baseline and normal subjects was evaluated on Left ventricular systolic and diastolic long axis function. Acute coronary occlusion during PTCA aggravated pre-existing systolic and diastolic abnormalities in stable angina, but caused only minor systolic deterioration in unstable angina.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: