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Related Experiment Videos

Systolic time intervals.

H Boudoulas1

  • 1Division of Cardiology, Ohio State University, Columbus 43210.

European Heart Journal
|December 1, 1990
PubMed
Summary
This summary is machine-generated.

Systolic time intervals (STI) provide a temporal analysis of the cardiac cycle, reflecting left ventricular (LV) performance. Their sensitivity and ease of measurement make STI valuable for assessing cardiac drug effects.

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Area of Science:

  • Cardiology
  • Cardiac Physiology

Background:

  • The cardiac cycle involves sequential phases crucial for left ventricular (LV) performance.
  • Physiological variables influencing LV performance also affect cardiac cycle timing.

Purpose of the Study:

  • To highlight the utility of systolic time intervals (STI) in assessing cardiac function.
  • To emphasize the suitability of STI for pharmacologic studies on the heart.

Main Methods:

  • Utilizing temporal descriptions of cardiac cycle phases.
  • Measuring systolic time intervals (STI).

Main Results:

  • STI offer a temporal description of cardiac cycle phases.
  • STI reflect left ventricular (LV) performance.

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  • STI are sensitive to physiological variables affecting LV function.

    • Conclusions:

    • Systolic time intervals (STI) augment other measures of left ventricular (LV) performance.
    • The sensitivity and ease of STI measurement make them ideal for studying pharmacologic effects on the heart.