Korotkoff sounds

(redirected from Korotkoff sound)

Ko·rot·koff sounds

(kŏ-rot'kof),
characteristic noise heard over an artery when pressure over it is reduced below systolic arterial pressure, as when blood pressure is determined by the auscultatory method.
Farlex Partner Medical Dictionary © Farlex 2012

Ko·rot·koff sounds

(kō-rot'kof sowndz)
Aural findings heard during blood pressure determination using a stethoscope and sphygmomanometer. Sounds originating within the blood passing through the vessel or produced by a vibrating motion of the arterial wall.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Korotkoff sounds

The sounds heard through a stethoscope held over a compressed artery with each pulse beat as the compression is gradually released, in the process of measuring the blood pressure with a SPHYGMOMANOMETER. The first pulse sound heard as blood is able to pass through the narrowed artery is Korotkoff phase I. The sounds get louder as the cuff pressure continues to fall, but then there is a sudden muffling. This is Korotkoff phase IV; the cuff pressure at this point has, in the past, been taken as the diastolic pressure. Soon after that the sounds disappear altogether. This is Korotkoff phase V, the cuff pressure at which is now generally taken as the diastolic. (Nikolai Sergeivich Korotkov, 1874–1920, Russian physician).
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Korotkoff,

Nikolai S., Russian physician, 1874-1920.
Korotkoff sounds - sounds heard over an artery when pressure over it is reduced below systolic arterial pressure, as when blood pressure is determined by the auscultatory method.
Korotkoff test - a test of collateral circulation.
Medical Eponyms © Farlex 2012

Ko·rot·koff sounds

(kō-rot'kof sowndz)
Characteristic noise heard over an artery when pressure over it is reduced below systolic arterial pressure.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Phase-I (K1) of Korotkoff sound was taken as Systolic and Phase-IV (K4) of Korotkoff sound was considered as Diastolic blood pressure.
Fifth-phase Korotkoff sound was used for diastolic blood pressure.
Systolic BP was measured at first of two regular Korotkoff sounds. Diastolic blood pressure was the point at which the last regular Korotkoff sound is heard.
SBP was recorded as the moment of hearing the first Korotkoff sound and diastolic BP (DBP) as the moment of disappearance of the Korotkoff sound.
The DMA peripheral in the device allows efficient data handling that result in fast algorithms for Korotkoff sound detection and also filters the noise affecting the measurement.
The first Korotkoff sound corresponds to the onset of clear tapping.
Blood pressure was auscultated with manual sphygmomanometers using the first Korotkoff sound as the systolic reading and the fifth Korotkoff sound as the diastolic reading.
Accordingly, Korotkoff sounds, appearance of sound (Phase I) is taken as Systolic BP, and disappearance of (phase V) Korotkoff sound is taken as Diastolic BP.
The appearance of sound (phase-1 of the Korotkoff sound) recorded as systolic BP and disappearance of this sound (phase-5 of Korotkoff sound) was recorded as diastolic BR[12,16]
The first Korotkoff sound indicated systolic pressure and fifth Korotkoff sound indicated the diastolic pressure.
[15] First Korotkoff sound indicated systolic blood pressure (SBP) and fifth Korotkoff sound indicated diastolic blood pressure (DBP).