akinesia

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Related to akinesis: dyskinesis

akinesia

[¦a·ki′nēzh·ə]
(medicine)
Loss or impairment of motor function.
Immobility from any cause.
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They include 1) transient hypokinesis, akinesis, or dyskinesis of the left ventricular mid segments with or without apical involvement, with the regional wall motion abnormalities extending beyond a single epicardial vascular distribution, 2) absence of obstructive coronary disease or angiographic evidence of acute plaque rupture, 3) new EKG abnormalities or elevation in cardiac troponin level and 4) the absence of pheochromocytoma and myocarditis.
Perfusion Rest/Stress Test Results Gated Wall Motion Study Results Abnormal Wall Motion (Hypokinesis or Akinesis, n = 28) Fixed defects; n = 14 10 (71%) Reversible defects; n = 28 13 (46%) Fixed and reversible defects; n = 3 3 (100%) Normal perfusion; n = 139 2 (1.
In summary, this patient's perfusionviability CMR imaging demonstrates a small focal area of apical-inferior wall transmural, > 50% myocardial DHE with corresponding akinesis and fixed-perfusion rest-stress defects, corresponding to RCA territory scar with nonviable myocardium, related to the patient's prior MI.
Transoesophageal echocardiography showed anterior and anterolateral ventricular wall akinesis, with septal and right ventricular wall hypokinesis.
Emergent cardiac catheterization revealed normal epicardial coronary vessels, with mid and apical akinesis on left ventriculography.
Initially described in Japan, (3) "tako-tsubo" cardiomyopathy was used to describe a syndrome which predominantly affected middle-aged women, was brought on by acute emotional stress, was characterized by mild creatinine kinase and troponin I elevations, and by the left ventriculogram demonstrating hypo- or akinesis from the mid portion of the anterior wall to the apex and hyperkinesis of the basal area.
A bedside echocardiography revealed akinesis of the left ventricular (LV) midsegments, with apical involvement.
The estimated ejection fraction was 10% with akinesis of the anterior and inferior walls, sparing of the base and apex, and ballooning of the mid ventricle (Figure 3).
4 cm, ejection fraction--25%, normal basal segments, apical hypokinesis, apicolateral heavy hypokinesis, 2/3 distal septum akinesis, E/A ratio 2:1, deceleration time--150 msn, isovolumetric relaxation time - 80 msn, 1(+) mitral regurgitation, and normal valve structures were determined.
3,7) The ventriculogram demonstrates ventricular asynergy with hypokinesis or akinesis from the midportion of the ventricle to the apex, and hyperkinesis of the base.
The predictive value was highest in segments with akinesis.