Notes in 07_Heart Sounds

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Published	02/10/2024	First heart sound (S1) is caused by the closure of the {{c1::atrioventricular valves: the tricuspid valve (T1) and …
Published	02/10/2024	First heart sound (S1) involves closure of the {{c1::mitral valve (M1)}} and closure of the {{c1::tricuspid valve (T1)}}
Published	02/10/2024	A {{c1::Split}} S1 means that the mitral valve closes earlier before the tricuspid valve, allowing you to hear both closures separately.
Published	02/10/2024	Delayed T1 (i.e. Split S1) suggests {{c1::right bundle branch block}}
Published	02/10/2024	Second heart sound (S2) is caused by the closure of the {{c1::semilunar valves: the pulmonary valve (P2) and the aortic valve (A2)…
Published	02/10/2024	{{c2::Wide}} and {{c2::fixed}} split of second heart sound (S2) suggests {{c1::atrial septal defect}}
Published	02/10/2024	{{c2::Wide}} and {{c2::variable}} split of second heart sound (S2) can indicate one of the following pathologies:{{c1::Right bundl…
Published	02/10/2024	{{c2::Absent}} or {{c2::Reduced/Soft}} closure of aortic valve (A2) can indicate {{c1::aortic stenosis}}
Published	02/10/2024	{{c2::Loud}} closure of pulmonary valve (P2) can indicate {{c1::pulmonary hypertension}}
Published	02/10/2024	{{c1::Third Heart Sound (S3)}} occurs secondary to {{c2::rapid filling}} in young people (e.g. youth or athletes) but in older age occurs due to …
Published	02/10/2024	A Third Heart Sound (S3) in >40 yrs can indicate {{c1::fluid overload}} or {{c1::heart failure}}
Published	02/10/2024	{{c1::Fourth heart sound (S4)}} is a pathological heart sound heard directly before S1 which occurs due to a stiff or hypertrophic ventricle
Published	02/10/2024	Causes of Fourth Heart Sound (S4){{c1::Hypertrophic Obstructive Cardiomyopathy}}{{c1::Chronic Hypertension}}{{c1::Severe Aortic Stenosis}}
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