Search results
Results from the WOW.Com Content Network
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 cardiac auscultation , an examiner may use a stethoscope to listen for these unique and distinct sounds that provide important auditory data regarding ...
Auscultogram from normal and abnormal heart sounds Diastolic heart murmurs are heart murmurs heard during diastole , [ 1 ] [ 2 ] [ 3 ] i.e. they start at or after S2 and end before or at S1 . Many involve stenosis of the atrioventricular valves or regurgitation of the semilunar valves .
Wiggers diagram of various events of a cardiac cycle, with 2nd heart sound at bottom. A split S2 is a finding upon auscultation of the S2 heart sound. [1] It is caused when the closure of the aortic valve (A 2) and the closure of the pulmonary valve (P 2) are not synchronized during inspiration. The second heart sound (S2) is caused by the ...
Understanding Pediatric Heart Sounds 2nd edition (2003) by Steven Lehrer is a book and audio CD that guides the student through the skills of pediatric heart auscultation. It provides a complete overview of pediatric heart examination, anatomy, physiology, and pathology. The audio CD presents and explains normal and abnormal heart sounds. [1 ...
Heart murmurs are unique heart sounds produced when blood flows across a heart valve or blood vessel. [1] This occurs when turbulent blood flow creates a sound loud enough to hear with a stethoscope. [2] The sound differs from normal heart sounds by their characteristics. For example, heart murmurs may have a distinct pitch, duration and timing.
Heart sounds of a healthy human female with a functional or "innocent" heart murmur after exercise. A functional murmur (innocent murmur, physiologic murmur) is a heart murmur that is primarily due to physiologic conditions outside the heart, as opposed to structural defects in the heart itself. [1]
The first heart sound may be followed by a sharp ejection sound ("ejection click") best heard at the lower left sternal border and the apex, and, thus, appear to be "split". The ejection sound, caused by the impact of left ventricular outflow against the partially fused aortic valve leaflets, is more commonly associated with a mobile bicuspid ...
Some children have no signs while others may exhibit shortness of breath, cyanosis, fainting, [16] heart murmur, under-development of limbs and muscles, poor feeding or growth, or respiratory infections. Congenital heart defects cause abnormal heart structure resulting in production of certain sounds called heart murmur.