pulsus alternans


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pulsus

 [pul´sus] (L.)
pulsus alter´nans alternating pulse.
pulsus bige´minus bigeminal pulse.
pulsus bisfe´riens a pulse characterized by two strong systolic peaks separated by a midsystolic dip, most commonly occurring in pure aortic regurgitation with stenosis.
pulsus ce´ler quick pulse.
pulsus dif´ferens inequality of the pulse observable at corresponding sites on either side of the body.
pulsus paradox´us paradoxical pulse.
pulsus par´vus et tar´dus a small hard pulse that rises and falls slowly.
pulsus tar´dus slow pulse.

al·ter·nat·ing pulse

mechanical alternation; a pulse regular in time but with alternate beats stronger and weaker, often detectable only with the sphygmomanometer or other pressure measurement and usually indicating serious myocardial disease.
Synonym(s): pulsus alternans

pulsus alternans

[pul′səs ôl′tərnanz]
Etymology: L, pulsare + alternare, to alternate
a pulse characterized by a regular alternation of weak and strong beats without changes in the pulse rate. Also called alternans, alternating pulse.

pulsus alternans

Cardiology A pulse occurring at regular intervals which there is rhythmic attenuation of the pulse pressure heights–eg, every other beat; sustained PA is associated with severely depressed left
ventricular function, accompanied by an altered blood flow in the aorta, left ventricular and systolic pressures, and often a 3rd ventricular sound Prognosis Poor

al·ter·nat·ing pulse

(awl'tĕr-nāt-ing pŭls)
Mechanical alternation, a pulse regular in time but with alternate beats stronger and weaker, often detectable only with the sphygmomanometer and usually indicating serious myocardial disease.
Synonym(s): pulsus alternans.

pulsus alternans

Alternating strong and weak pulse beats. Pulsus alternans is a sign of failure of the left side of the heart (left ventricular failure).

pul·sus al·ter·nans

(pŭlsŭs awltĕr-nanz)
Heartbeats that alternate between strong and weak.
Synonym(s): alternating pulse.

pulsus

[L.] pulse.

pulsus alternans
see alternating pulse.
pulsus bigeminus
bigeminal pulse.
pulsus bisferiens
a pulse characterized by two strong systolic peaks separated by a midsystolic dip, most commonly occurring in pure aortic regurgitation and in aortic regurgitation with stenosis.
pulsus celer
a swift, abrupt pulse.
pulsus differens
inequality of the pulse obervable at corresponding sites on either side of the body.
pulsus paradoxus
an abnormal inspiratory decrease in arterial blood pressure, seen in cardiac tamponade and caused by a decreased pulmonary venous return.
pulsus parvus et tardus
a small hard pulse that rises and falls slowly.
pulsus tardus
an abnormally slow pulse.
References in periodicals archive ?
Pulsus alternans, alternating weak and strong beat in the presence of stable heart rate and QRS complex, is generally accepted as a finding of physical examination.
The pulsus alternans was first described as beat-to-beat alternation in the arterial pressure pulse (3).
Whereas, Sengupta et al (7) had shown that pulsus alternans is reflected by alternans in both systolic and diastolic annular peak velocities.
In conclusion, we present a case with left ventricular pulsus alternans without any apparent alternans in contractile force.