Key result
Systolic time intervals, including preejection period and PEP/LVET ratio, were significantly lower in normotensives than hypertensives and correlated directly with systolic and diastolic blood pressure.
Why the study?
Is there a relationship between systolic time intervals and arterial blood pressure independent of heart rate in hypertensive and normotensive subjects?
Population
37 subjects with no signs of heart failure and left ventricular dysfunction
Comparison
Measurement of systolic time intervals during… vs Normotensive subjects
Design
Cross-sectional
Authors
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BP adjustment needed when using STI to assess myocardial function; leaves open whether this refines hypertension-related evaluations in prospective studies.
Cross-Sectional (n=37)
Is there a relationship between systolic time intervals and arterial blood pressure independent of heart rate in hypertensive and normotensive subjects?
Systolic time intervals are directly related to arterial blood pressure, suggesting that blood pressure should be accounted for when using STI to evaluate myocardial function.
Cinelli et al. (1986) conducted a cross-sectional in Hypertension (n=37). Systolic time intervals (STI) measurement during pacing vs. Normotensives was evaluated on Relationship of systolic time intervals to blood pressure. Systolic time intervals, including preejection period and PEP/LVET ratio, were significantly lower in normotensives than hypertensives and correlated directly with systolic and diastolic blood pressure.
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