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Aug 10, 2022 · Doctors refer to the noise from the opening and closing of valves as heart sounds. This article looks at heart sounds, how to measure them, and what abnormal heart sounds and...
Heart sounds are the noises generated by the beating heart and the resultant flow of blood through it. Specifically, the sounds reflect the turbulence created when the heart valves snap shut.
In a healthy adult, the heart makes two sounds, commonly described as ‘lub’ and ‘dub.’ The third and fourth sounds may be heard in some healthy people, but can indicate impairment of the heart function. S1 and S2 are high-pitched and S3 and S4 are low-pitched sounds. First sound
Jul 17, 2023 · Heart sounds and murmurs have been described in terms of their timing in the cardiac cycle, intensity, how intensity changes during the cardiac cycle, sound wave shape, pitch, location where the sound is audible, radiation, rhythm, and response to physical exam maneuvers.
- Sean Dornbush, Andre E. Turnquest
- St. Georges, University of London
- 2019
- 2023/07/17
Nov 3, 2020 · Heart Sound Abnormalities. Chris Nickson. Nov 3, 2020. Home CCC. S1. Loud. MV or TV open long -> shuts forcefully. MS. increased HR.
The most fundamental heart sounds are the first and second sounds, usually abbreviated as S 1 and S 2. S 1 is caused by closure of the mitral and tricuspid valves at the beginning of isovolumetric ventricular contraction .
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Normal heart sounds are characterized by the presence of S1 and S2, along with the absence of additional or abnormal sounds. The timing, intensity, and splitting of S1 and S2 can provide valuable information about cardiac function and valve integrity.
