pulsus paradoxus


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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.

par·a·dox·ic pulse

an exaggeration of the normal variation in the systemic arterial pulse volume with respiration, becoming weaker with inspiration and stronger with expiration; characteristic of cardiac tamponade, rare in constrictive pericarditis; so called because these changes are independent of changes in the cardiac rate as measured directly or by electrocardiogram.

pulsus paradoxus

an abnormally large decrease in systolic blood pressure and pulse wave amplitude during inspiration. The normal fall in pressure is less than 10 mm Hg. An excessive decline may be a sign of tamponade, adhesive pericarditis, severe lung disease, advanced heart failure, or other conditions. Also called paradoxic pulse.

pulsus paradoxus

Cardiology A marked ↓ in pulse amplitude during normal quiet inspiration or a ↓ in the systolic pressure by > 10 mm Hg, a typical finding in cardiac tamponade, less common in constrictive pericarditis–quantifiable by a sphygmomanometer, superior vena cava obstruction, asthma, PE, shock, or after thoracotomy

par·a·dox·ic pulse

(par'ă-doks'ik pŭls)
A reversal of the normal variation in the pulse volume with respiration, the pulse becoming weaker with inspiration and stronger with expiration; characteristic of cardiac tamponade and rare in constrictive pericarditis. So called because these changes are independent of changes in the cardiac rate as measured directly or by electrocardiogram.
Synonym(s): pulsus paradoxus.

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 ?
Central to establishing a diagnosis of cardiac tamponade is the presence of a pulsus paradoxus >10 mmHg in a patient with a pericardial effusion; this sign may, however, be difficult to elicit in a hypotensive patient.
On physical examination she was dyspnoeic, heart rate was 110 beats/min, and blood pressure was 80/50 mmHg with a pulsus paradoxus of 22 mmHg.
Physical signs like Pallor, Sweating, exhaustion, cyanosis and unconsciousness, tachycardia >120bpm and tachypnoea >30/min, pulsus paradoxus, silent chest.
Physical examination reveals tachycardia and hypotensive neck vein distention diminished heart sounds and pulsus paradoxus.
In patients presenting with these symptoms, deep cardiac sounds, hypotension, venous distension and pulsus paradoxus suggest tamponade and the definite diagnosis can be made by echocardiographic examination.
Additionally, his pulse was poorer when he was breathing in, a phenomenon called pulsus paradoxus.
The patient continued to be short of breath with edema and developed a blood pressure of 80 mm Hg with pulsus paradoxus of 20 mm Hg and neck vein distension.
After 24 days of admission, the patient experienced an acute episode of tachycardia and subsequent hypotension, and demonstrated pulsus paradoxus of 12 mmHg on physical examination.
Pulsus paradoxus is absent because accessory muscles of ventilation are not in use.
Leftward shift of the interventricular septum and pulsus paradoxus in obstructive sleep apnea syndrome.
Simultaneously observing the arterial pressure and waveform looking for beat-to-beat variability in the pulse pressure can aid in detecting arrhythmias and pulsus paradoxus.
In the patient with ACT, pulsus paradoxus is the result of impairment of diastolic filling of the left ventricle, and the subsequent decreased blood volume in all four cardiac chambers.