pulsus bisferiens

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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.

bis·fer·i·ous pulse

an arterial pulse with two strong peaks.
Synonym(s): pulsus bisferiens

bis·fer·i·ous pulse

(bis-fer'ē-ŭs pŭls)
Having two beats; an arterial pulse with peaks that may be palpable.
Synonym(s): pulsus bisferiens.

pulsus bisferiens

A pulse with a double peak. This is suggestive of a narrowing and leakage of the heart valve at the beginning of the AORTA.
References in periodicals archive ?
The electrical stimulus was a balanced biphasic pulse with negative initial phase.
[22], waves Vs were registered with biphasic pulses of 500 [micro]A amplitude and 200 [micro]s phase duration.
Without this implementation of a digital filter module, the output leading control signal (Deduct) and lagging control signal (Add) from the differential PD will be sent directly to the corresponding port of the control module, to perform a deducting or an adding to the biphasic pulse. When a digital filter module is added, the leading and lagging control signals are first processed by the digital filter before being transmitted to the controller [21].
Tests showed that the DSU output profiles in blue lines matched the envelops of specified profiles in red lines exactly in Figure 7, and the amplitude of biphasic pulse train of each DSU output was modulated according to the specified temporal pattern.
To investigate the effect of R(+)-pulegone on cardiac potassium currents it was applied a biphasic pulse, from a holding potential of -80 to -140 mV (for 2 s) following a depolarizing pulse to +50 mV (for 4 s), every 15 s.
Four different subtypes of potassium current were isolated using a biphasic pulse; the inward rectifier [K.sup.+] current ([I.sub.K1]), transient outward [K.sup.+] current ([I.sub.to]), delayed rectifier [K.sup.+] current ([I.sub.Kr]), and the steady state non inactivating [K.sup.+] current ([I.sub.ss]).
One of the biggest concerns for Greenbaum is toxic byproduct formation as a result of a biphasic pulse passing through the electrodes of the array.
The devices were set to treat at 0.5 Hz, with a biphasic pulse, via ear clip electrodes.
Recent studies by our research group [12] and in the Andreas Schattz group [9] demonstrate that transcorneal electrical stimulation (TES) using biphasic pulses of 20 Hz and up to 1100 [micro]A are beneficial to patients with retinitis pigmentosa (RP).
Symmetric, rectangular, biphasic pulses at the frequency of 20 Hz were applied.