third heart sound

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third heart sound (S3),

occurs in early diastole and corresponds with the end of the first phase of rapid ventricular filling; normal in children and younger people but abnormal in others.
Synonym(s): third sound

third heart sound

S3 gallop, ventricular gallop Cardiology An extra heart sound traditionally regarded as a sign of left ventricular systolic dysfunction–heart failure; its significance differs according to the valve involved and the type of underlying defect; it is caused by rapid ventricular filling, and best heard over the apex with the Pt in supine or left lateral position; it ↑ with inspiration, exercise, elevation of legs, ↑ venous return. Cf Fourth heart sound.

third heart sound

(S3) (thĭrd hahrt sownd)
Occurs in early diastole and corresponds with the end of the first phase of rapid ventricular filling; normal in children and younger people but abnormal in others.
References in periodicals archive ?
With the first sound stage at Dubai Studio City gearing up to open its doors, the second and third sound stages of the first phase will not be too far behind.
Another call from aKirkbypayphone also features children's voices in the distance, while the third sounds like a pocket dial.
In particular, it is not uncommon to hear the rhythm D-13, with the last sounded pulse of the clave son missing, resulting in a more syncopated rhythm, and the rhythms I-5 and I-6, in which the second and third sounded pulses of the clave son are embellished with an additional sounded pulses either just before or just after a sounded pulse, respectively.
The interval we call a major third sounds happy, pleasant or calming to us.
For the time being, though, third sounds good and twice Open champion sounds even better.
For example, after choosing Timing of Heart Sounds, the user is given 6 new options (such as Opening Sounds, Third Sounds, Fourth Sounds).