Abstract
The relationship between cuff pressure for the loudest Korotkoff sound and cuff pressure for maximum oscillations was determined in 10 human volunteers. It was found that the loudest sound occurred at a cuff pressure a few percent above that for maximal oscillations, which indicates mean blood pressure. The results of this study indicate that cuff pressure for the loudest Korotkoff sound is a good estimate of mean arterial pressure in man.

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