EXERCISE TRAINING RELIEVES PALPITATION AND PREMATURE VENTRICULAR DEPOLARIZATIONS THROUGH DECREASE IN PERI-INFARCT ZONE
نویسندگان
چکیده
منابع مشابه
Peri-infarct depolarizations reveal penumbra-like conditions in striatum.
Spreading depression-like peri-infarct depolarizations not only characterize but also worsen penumbra conditions in cortical border zones of experimental focal ischemia. We intended to investigate the relevance of ischemic depolarization in subcortical regions of ischemic territories. Calomel electrodes measured DC potentials simultaneously in the lateral and medial portions of the caudate nucl...
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IN ACUTE MYOCARDIAL INFARCTION it is generally accepted that ventricular premature depolarizations (VPDs) lead to ventricular tachycardia and ventricular fibrillation (VF). Therefore, suppression of VPDs should result in a lower incidence of fatal ventricular dysrhythmias. Randomized controlled trials in patients with acute myocardial infarction have demonstrated fewer episodes of VF and ventri...
متن کاملPannexin 1 Differentially Affects Neural Precursor Cell Maintenance in the Ventricular Zone and Peri-Infarct Cortex.
UNLABELLED We demonstrated previously that Pannexin 1 (Panx1), an ion and metabolite channel, promotes the growth and proliferation of ventricular zone (VZ) neural precursor cells (NPCs) in vitro. To investigate its role in vivo, we used floxed Panx1 mice in combination with viruses to delete Panx1 in VZ NPCs and to track numbers of Panx1-null and Panx1-expressing VZ NPCs over time. Two days af...
متن کاملFailure to demonstrate peri-infarct depolarizations by repetitive MR diffusion imaging in acute human stroke.
BACKGROUND AND PURPOSE Peri-infarct depolarizations (PIDs) have been demonstrated with diffusion-weighted MRI (DWI) in experimental stroke and are regarded as an important mechanism of ischemic injury. We tested the hypothesis that PIDs are of relevance for the early enlargement of human brain infarcts. METHODS Ten stroke patients were investigated by repetitive imaging of the apparent diffus...
متن کاملPenumbral microcirculatory changes associated with peri-infarct depolarizations in the rat.
BACKGROUND AND PURPOSE This study was designed to investigate the influence of peri-infarct depolarization elicited by occlusion of the middle cerebral artery on the dynamics of the microcirculation. METHODS The microcirculation in the frontoparietal cortex of 9 rats was visualized in real time through a closed cranial window with the use of laser-scanning confocal fluorescence microscopy com...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 2010
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(10)60571-2