dyssynchrony

dyssynchrony

(dis-sing'kro-ne) [ dys- + synchrony]
Any disorder in the normal or expected coordination of timed events.

auditory dyssynchrony

Auditory neuropathy.

neuromechanical dyssynchrony

Any difference between the respiratory support provided to a patient by a mechanical ventilator and the patient's breathing. In neuromechanical dyssynchrony, the inspiration of the ventilator is typically longer than the patient's. This difference is referred to colloquially as “fighting the ventilator.”

patient-ventilator dyssynchrony

Failure of synchronous interaction between a patient's neurally controlled breathing and the timing of a mechanical ventilator.
See: patient-ventilator interaction
References in periodicals archive ?
For asymptomatic patients in whom electrophysiology testing identifies high-risk properties, catheter ablation is recommended; catheter ablation should also be considered for patients with asymptomatic pre-excitation and a low-risk accessory pathway at invasive or noninvasive risk stratification and for patients with asymptomatic pre-excitation and left ventricular dysfunction due to electrical dyssynchrony. If a tachycardia responsible for tachycardiomyopathy cannot be ablated or controlled by drugs, atrioventricular nodal ablation with subsequent pacing is recommended.
Echocardiography revealed an ejection fraction of 25 to 30%, with evidence of left ventricular dyssynchrony, a tethered posterior mitral valve leaflet with mild eccentric regurgitation, consistent with dilated cardiomyopathy.
(7) Following alpha-2 agonist administered to healthy volunteers (reference 32), lowered Vt and lowered sensitivity to C02 may explain the absence of hyperventilation and patient-ventilator dyssynchrony in the setting of early severe ARDS or related settings (70, 87, 88) under low PS-high PEEP-alpha-2 agonists and mild permissive hypercapnia.
three-dimensional resynchronizing ecs (for atrial-bi-ventricular heart stimulation) in dddrv mode for patients with chf and ventricular dyssynchrony 10 pcs.
First dyssynchrony, (difference of time with the adjacent segments), then, hypokinesia (decrease in the amount of contraction), then akinesia (completely dysfunctional segments) and finally paradoxical movement dyskinesia develop in the ischemic area of the heart.
The role of nuclear medicine in assessments of cardiac dyssynchrony. J Nucl Cardiol 2017.
"In fact," he notes, "the historical record suggests that maintaining power is frequently a competing priority for an incumbent regime, which means that many of the standard reform prescriptions for counterinsurgency--streamlining the military chain of command, ending patronage politics, engaging in economic reform, and embracing disaffected minority groups--can appear as threatening to a besieged government and its supporters as the insurgency itself." When dealing with regional partners--particularly those afflicted with nepotism, deeply factionalized internal power structures, and tense civil-military relations--there always will be a strong potential for strategic misalignment or dyssynchrony, or both.
Objective: To determine the frequency of intraventricular dyssynchrony among patients with left bundle branch block.
Determinants of diastolic function are relaxation of the myocardium, preload, afterload, dyssynchrony of myocardial function, myocardial stiffness, chamber geometry and wall thickness.
Moreover, mechanical dyssynchrony was observed on strain echocardiography (Figure 2(e)), and the patient's BNP levels increased to 1,300 pg/ml.
RV pressure overload due to clot burden leads to acute RV systolic failure, changes to the geometry of both right and left ventricles, and eventual ventricular dyssynchrony. Left-sided pump failure develops as a consequence of low LV preload and cardiac output falls [14].
CRT is considered as a valuable treatment for patients with dyssynchrony HF with QRS interval >120 ms and left ventricular ejection fraction (EF) <35% [2, 3].