The pulsus paradoxus defines a decrease in blood pulse, detected by radial pulse, taken at the inside of the wrist, while breathing, which contrasts with heart rhythm when the two are compared, the latter remaining normal and regular. In a healthy patient, this decrease goes unnoticed. When the condition is noticeable, it can be a precursor of several different conditions, including pericarditis, tamponade, or even an asthma attack. In common clinical practice, this indication is rarely used, as it is extremely imprecise.
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. Translated by Jeff