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Pulsus parvus et tardus. Home Â» Pulsus parvus et tardus. pulsus tardus et parvus, more commonly known as slow-rising pulse, is a sign where, on palpation of the pulse, the pulse is late (tardus) (relative to contraction of the heart) and weak/small (parvus). Classically, it is seen in aortic valve stenosis.
Abstract. The Doppler linear flow velocity versus time spectrum obtained in an arterial flow system in which there is proximal occlusive disease with or without collateral formation has a tardus-parvus waveform.The conditions that cause this Doppler sign are due to a poststenotic pressure drop.elated Citations. 1  Hepatic artery stenosis following liver transplantation: significance of the tardus parvus waveform and the role of microbubble contrast media in the detection of a focal stenosis. 2  Office Doppler techniques in vascular disease.