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  2. Phonocardiogram - Wikipedia

    en.wikipedia.org/wiki/Phonocardiogram

    Phonocardiograms of common murmurs. A phonocardiogram (or PCG) is a plot of high-fidelity recording of the sounds and murmurs made by the heart with the help of the machine called the phonocardiograph; thus, phonocardiography is the recording of all the sounds made by the heart during a cardiac cycle. [2] [3]

  3. Heart murmur - Wikipedia

    en.wikipedia.org/wiki/Heart_murmur

    Most murmurs are normal variants that can present at various ages which relate to changes of the body with age such as chest size, blood pressure, and pliability or rigidity of structures. [3] Heart murmurs are frequently categorized by timing. These include systolic heart murmurs, diastolic heart murmurs, or continuous murmurs. These differ in ...

  4. Cardiac physiology - Wikipedia

    en.wikipedia.org/wiki/Cardiac_physiology

    Heart murmurs are abnormal heart sounds which can be either pathological or benign and there are numerous kinds. [10] Murmurs are graded by volume, from 1) the quietest, to 6) the loudest, and evaluated by their relationship to the heart sounds and position in the cardiac cycle. [9] Phonocardiograms can record these sounds. [1]

  5. Heart - Wikipedia

    en.wikipedia.org/wiki/Heart

    Valvular heart disease may cause breathlessness, blackouts, or chest pain, but may be asymptomatic and only detected on a routine examination by hearing abnormal heart sounds or a heart murmur. In the developed world, valvular heart disease is most commonly caused by degeneration secondary to old age, but may also be caused by infection of the ...

  6. Wiggers diagram - Wikipedia

    en.wikipedia.org/wiki/Wiggers_diagram

    A Wiggers diagram, named after its developer, Carl Wiggers, is a unique diagram that has been used in teaching cardiac physiology for more than a century. [1] [2] In the Wiggers diagram, the X-axis is used to plot time subdivided into the cardiac phases, while the Y-axis typically contains the following on a single grid: Blood pressure. Aortic ...

  7. Heart sounds - Wikipedia

    en.wikipedia.org/wiki/Heart_sounds

    These are the first heart sound (S 1) and second heart sound (S 2), produced by the closing of the atrioventricular valves and semilunar valves, respectively. In addition to these normal sounds, a variety of other sounds may be present including heart murmurs , adventitious sounds , and gallop rhythms S 3 and S 4 .

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  9. Cardiac examination - Wikipedia

    en.wikipedia.org/wiki/Cardiac_examination

    diastolic murmurs (e.g. aortic regurgitation, mitral stenosis) systolic murmurs (e.g. aortic stenosis, mitral regurgitation) pericardial rub (suggestive of pericarditis) The base of the lungs should be auscultated for signs of pulmonary oedema due to a cardiac cause such as bilateral basal crepitations.

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