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This study compared cardiac imaging techniques in 110 patients. A coronary index effectively correlated vascular changes with impaired left ventricular function and asynergia.
Area of Science:
- Cardiology
- Diagnostic Imaging
- Physiology
Background:
- Cardiac catheterization and systolic time measurements are crucial for assessing heart function.
- Coronary artery disease can lead to significant left ventricular dysfunction.
Purpose of the Study:
- To compare diagnostic methods including selective coronariography, ventriculography, and left catheterization.
- To evaluate the relationship between coronary vascular alterations and left ventricular function.
Main Methods:
- A series of 110 patients underwent selective coronariography, ventriculography, and left catheterization.
- Systolic time intervals and a coronary index were measured.
- Left ventricular function and asynergia were assessed.
Main Results:
- The coronary index demonstrated a strong correlation with the incidence of asynergia.
- Vascular alteration severity, indicated by the coronary index, was directly related to compromised left ventricular function.
- Index values correlated with decreased DP/DT ratio, elevated telediastolic pressure, prolonged pre-ejection phase, and shortened left ventricular systole.
Conclusions:
- The coronary index is a valuable tool for quantifying vascular changes and their impact on left ventricular performance.
- These findings highlight the physiopathological link between coronary artery disease severity and cardiac dysfunction.
Abstract:
Results obtained with selective coronariography, ventriculography, left catheterisation and the measurement of systolic times were compared in a series of 110 patients. Evaluation of vascular alterations with the aid of a coronary index showed that their entity was closely related to the incidence of asynergia and the extent to which left ventricular function was compromised. Index values were proportional to decrease of the DP/DT ratio, increased telediastolic pressure, lengthening of the pre-ejection phases and shortening of left ventricular systole. The physiopathological and clinical significance of these results is discussed.