Dictionary > Dicrotic notch

Dicrotic notch

Definition
noun
1. The brief rise or upstroke in a pulse tracing that occurs before the dicrotic wave, and represents a transient increase in aortic pressure.
2. The notch separating the systolic from the diastolic part of the pressure wave.
Supplement
Word origin: Greek: Di – twice +Krotos – beat

Also known as: incisura dicrota.

See also: diastole, systole.


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