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  2. Third heart sound - Wikipedia

    en.wikipedia.org/wiki/Third_heart_sound

    S 3 may be normal in people under 40 years of age and some trained athletes but should disappear before middle age. Re-emergence of this sound late in life is abnormal [5] and may indicate serious problems such as heart failure. The sound of S 3 is lower in pitch than the normal sounds, usually faint, and best heard with the bell of the ...

  3. Heart sounds - Wikipedia

    en.wikipedia.org/wiki/Heart_sounds

    The third heart sound is benign in youth, some trained athletes, and sometimes in pregnancy but if it re-emerges later in life it may signal cardiac problems, such as a failing left ventricle as in dilated congestive heart failure (CHF). S3 is thought to be caused by the oscillation of blood back and forth between the walls of the ventricles ...

  4. Mitral regurgitation - Wikipedia

    en.wikipedia.org/wiki/Mitral_regurgitation

    A third heart sound is commonly heard. [6] Patients with mitral valve prolapse may have a holosystolic murmur or often a mid-to-late systolic click and a late systolic murmur. Cases with a late systolic regurgitant murmur may still be associated with significant hemodynamic consequences. [8]

  5. Heart failure - Wikipedia

    en.wikipedia.org/wiki/Heart_failure

    Heart failure with recovered ejection fraction (HFrecovEF or HFrecEF): patients previously with HFrEF with complete normalization of left ventricular ejection (≥50%). [64] [65] Heart failure may also be classified as acute or chronic. Chronic heart failure is a long-term condition, usually kept stable by the treatment of symptoms.

  6. Gallop rhythm - Wikipedia

    en.wikipedia.org/wiki/Gallop_rhythm

    Extra sounds, (third and/or fourth heart sound, can be normal, especially in children, or with severe exercise, but are generally heard (on the left side) when ventricular function is impaired, e.g., in case of acute infarction or severe cardiac failure. The sounds are thought to be caused by the atrium, facing back-pressure, forcing volume ...

  7. Systolic heart murmur - Wikipedia

    en.wikipedia.org/wiki/Systolic_heart_murmur

    Late systolic Mitral valve prolapse: This is the most common cause of late systolic murmurs. It can be heard best over the apex of the heart, usually preceded by clicks. The most common cause of mitral valve prolapse is "floppy" valve (Barlow's) syndrome. If the prolapse becomes severe enough, mitral regurgitation may occur.

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