Korotkoff sounds

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Related to Korotkoff sounds: auscultatory gap

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

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References in periodicals archive ?

Auscultation of Korotkoff sounds over the radial artery or using a Doppler also can be done.

Blood pressure measurement guidelines for physical therapists

Graphic recording of the Korotkoff sounds. Am Heart J 1959; 57:361-370.

Blood pressure monitoring--automated non-invasive blood pressure monitors

Oscillometric BP measurements eliminate many of the potential problems of auscultation, including deflation of the cuff too quickly, inability to hear soft Korotkoff sounds, rounding of numbers, and observer bias (National High Blood Pressure Education Program Working Group, 2004).

Evidence-based practice: noninvasive blood pressure measurement in children

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.

Prevalence of elevated body mass index and blood pressure in a rural school-aged population: implications for school nurses

Korotkoff sounds I and V were used to define SBP and diastolic BP (DBP) respectively.

Effect of hospitalization on conventional and 24-hour blood pressure

Phase 5 of Korotkoff sounds (disappearance of sound) was designated as the diastolic blood pressure.

Incidental blood pressure elevations: a MIRNET project

The criteria for entry into the study was a sitting systolic blood pressure range of 150 to 159 mmHg and a diastolic blood pressure (disappearance of sounds phase V, Korotkoff sounds) in range of 100 to 109 mmHg on two occasions at least 4 hours apart.

Efficacy and safety of labetalol in the management of moderate gestation hypertension--a prospective observational study

The first and fifth Korotkoff sounds were used to identify systolic and diastolic pressures.

Is low blood pressure in elderly people just a consequence of heart disease and frailty?

The first and fifth Korotkoff sounds indicated systolic and diastolic pressures, respectively.

Hypertension control in a rural community: an assessment of community-oriented primary care

The first and the fifth phase of Korotkoff sounds were recorded as systolic and diastolic pressure, respectively.