Search Results
Results 1 - 50 of 1406
1 2 3 4 5 6 7 8 9 10 >
Moseley Brian D BD Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA. Electronic address: - - 2014
It has previously been suggested that abnormalities in cardiac repolarization (QTc lengthening and shortening) are more likely to accompany seizures with hypoxemia and may be involved in sudden unexpected death in epilepsy (SUDEP). Accordingly, we evaluated for associations between peri-ictal QTc changes and hypoxemia. We performed a reanalysis of cardiac ...
Eggleston Katherine S KS Cyberonics, Inc., Houston, TX 77058, United States. Electronic address: - - 2014
Epileptic seizures can lead to changes in autonomic function affecting the sympathetic, parasympathetic, and enteric nervous systems. Changes in cardiac signals are potential biomarkers that may provide an extra-cerebral indicator of ictal onset in some patients. Heart rate can be measured easily when compared to other biomarkers that are commonly ...
Powell Kim L KL Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria, - - 2014
Evidence from animal and human studies indicates that epilepsy can affect cardiac function, although the molecular basis of this remains poorly understood. Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels generate pacemaker activity and modulate cellular excitability in the brain and heart, with altered expression and function associated with epilepsy and cardiomyopathies. Whether ...
Gardezi Skm S Specialty Registrar Cardiology, Worthing Hospital, - - 2014
The relationship between seizure activity and arrhythmias is not well established. Sinus tachycardia is commonly seen post seizure. Bradyarrythmias leading to seizure activity is rarely reported in the literature thus far. A 62-year-old lady presented with nocturnal seizures and was subsequently started on oral anti-convulsant with no relief of her ...
Baratloo Alireza A Department of Emergency Medicine, Shohada Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, IR - - 2013
A sudden loss of consciousness followed by abnormal movements can be ictal or syncopal in origin. Transient response by the brain to sudden decrease of blood flow may cause sudden loss of consciousness followed by abnormal movements that mimic seizure. Dysrhythmia is one of the important and critical reasons of ...
Read Morgayn I - - 2013
Status epilepticus has been increasingly associated with cardiac injury in both clinical and animal studies. Our group has previously shown that excitotoxic seizure induction results in the formation of ischaemic myocardial infarcts and loss of cardiac haemodynamic function. We hypothesised that attenuation of cardiac sympathetic/parasympathetic balance with a central presynaptic ...
Kibar Ayse Esin - - 2013
Impaired cardiac myocardial function may contribute to the risk for sudden unexpected death of a patient with epilepsy. This study aimed to investigate the effect of antiepilepsy drugs (AEDs) on cardiac function in pediatric epileptic patients using standard and tissue Doppler imaging (TDI) echocardiography. This hospital-based, prospective cross-sectional study investigated ...
Babarao Hanmantrao Darku - - 2013
We report an elderly man with chronic uncontrolled localization-related epilepsy on three AEDs, who developed in-hospital symptomatic bradyarrythmia due to junctional atrio-ventricular (AV) rhythm after an episode of generalized seizure during his hospital stay. On further evaluation, the cardiac enzymes were normal and 2D-echocardiogram showed mild left ventricular hypertrophy. Patient ...
Nagler Josef - - 2013
BACKGROUND: This observational study documented heart rate over the entire course of electrically induced seizures and aimed to evaluate the effects of stimulus electrode placement, patients' age, stimulus dose, and additional predictors. METHOD: In 119 consecutive patients with 64 right unilateral (RUL) and 55 bifrontal (BF) electroconvulsive treatments, heart rate ...
Demirtas-Tatlidede Asli - - 2013
Akinetic mutism is characterized by profound apathy and a lack of verbal and motor output for action, despite preserved alertness. The condition usually follows bilateral damage to the medial frontal subcortical circuits. We report a 59-year-old right-handed woman who was admitted to the neurology ward with sudden-onset akinetic mutism. Her ...
Amin Faisal Mohammad - - 2013
A 46-year-old male with juvenile myoclonic epilepsy was admitted to the neurological department for convulsive seizures just after lamotrigine was discontinued. On admission he was awake but had a right-sided hemiparesis with Babinski sign and ataxic finger-nose test on the left side. An MR scan showed a left-sided pontine infarction, ...
Jung Andrew K - - 2013
Developmental venous anomalies (DVA) are normally diminutive and incidental.(1,2) In this 33-year-old patient with epilepsy, the DVA is holohemispheric. Her epilepsy probably originates from the left side based on semiology; the EEG displayed left-sided slowing. Axial T1-weighted sequences show skull atrophy, ventricular widening, and satellite cavernous malformations with accumulation of ...
Prasad Rajniti - - 2013
Ischemic infarction in scorpion sting envenomation is rare and only few cases have been reported in adults. A 3-y-old child is reported who developed recurrent generalized tonic-clonic seizures 2 h after admission and hemiparesis on third day of admission following scorpion sting. Cranial tomography showed infarction in right and left frontoparietal ...
Surges Rainer - - 2013
Human and animal studies provided controversial data on asymmetric cortical representation of cardiac function, which may partially be due to different study designs and inter-individual variability. Here, we investigated whether seizure-related changes in heart rate (HR) and cardiac repolarization depend on the side of seizure-activity in people with mesial temporal ...
Wang Jianping - - 2013
Bithalamic infarctions initially presenting as a convulsive seizure are rarely reported and, to our best knowledge, have never been reported in China. Here, we present a patient with convulsive seizure at the onset of bilateral paramedian thalamic infarction. The diffusion-weighted imaging revealed that the infarct area is supplied by Percheron ...
Michowitz Yoav - - 2012
Introduction: The usefulness of unipolar electrograms (EGMs) has been reported in assessing lesion transmurality and conduction block along ablation lines. It is unknown whether unipolar and bipolar EGM characteristics predict exit block during pulmonary vein isolation (PVI) procedures. Methods and Results: Twenty patients (63 ± 7 years; 14 males [70%]) ...
Yang Jingchun - - 2012
α-Actinin2 (Actn2) is a predominant protein in the sarcomere Z disc whose mutation can lead to cardiomyopathy. However, the function of Actn2 in Z-disc assembly and cardiomyopathy in vertebrates remains elusive. We leveraged genetic tools in zebrafish embryos to elucidate the function of Actn2. We identified a single Actn2 homologue ...
Mazza Alberto - - 2012
Syncope following permanent pacemaker (PM) implantation is a nightmare for electrophysiologists. We describe a case of daily recurrent syncope in an 84-year-old man having a dual-chamber pacemaker implanted for complete atrio-ventricular block occurred 4 years before the admission to our department. He had a history of arterial hypertension, parossistic atrial ...
Tian Ying - - 2012
Emerging data in the field of cardiac development as well as repair and regeneration indicate a complex and important interplay between endocardial, epicardial, and myofibroblast populations that is critical for cardiomyocyte differentiation and postnatal function. For example, epicardial cells have been shown to generate cardiac myofibroblasts and may be one ...
Chalkias Athanasios - - 2012
Cardiac arrest is a leading cause of death that affects more than a million individuals worldwide every year. Despite the recent advancement in the field of cardiac arrest and resuscitation, the management and prognosis of post-cardiac arrest brain injury remain suboptimal. The pathophysiology of post-cardiac arrest brain injury involves a ...
Akashi Ryohei - - 2012
A 43-year-old man was admitted to our hospital presenting with seizures and syncope. He had a history of a cold with a fever of 39°C occurring three days earlier. Electrocardiography (ECG) showed complete atrioventricular block (AV block) with a maximum pause of 32 seconds, for which temporary pacing was performed. ...
Aldrovandi Annachiara - - 2012
To investigate the predictive value of 64-slice computed tomography coronary angiography (CTCA) for major adverse cardiac events (MACEs) in patients with suspected or known coronary artery disease (CAD). Seven hundred and sixty-seven consecutive patients (496 men, age 62±11 y) with suspected or known heart disease referred to an outpatient clinic ...
Aceros H - - 2011
Regression of left ventricular hypertrophy by moxonidine, a centrally acting sympatholytic imidazoline compound, results from a sustained reduction of DNA synthesis and transient stimulation of DNA fragmentation. Because apoptosis of cardiomyocytes may lead to contractile dysfunction, we investigated in spontaneously hypertensive rats (SHR), time- and dose-dependent effects of in vivo ...
Charles R A - - 2011
Cardiac arrest occurring on board aeroplanes is rare, but remains a common cause of inflight incidents. This review examines some of the management problems unique to inflight cardiac arrests, and emphasises the use of cardiopulmonary resuscitation and automated external defibrillators.
Zito Concetta - - 2011
OBJECTIVE: We sought to characterize the left ventricular strains and rotational mechanics in the infarct-related and remote regions of dilated heart following an ST-elevation myocardial infarction (STEMI) to understand the adaptive changes in global left ventricular function that develop several months after percutaneous coronary revascularization. METHODS: Forty-six patients with STEMI ...
Zheng Liang-Rong - - 2011
BACKGROUND: Diabetic hearts are vulnerable to ischemia/reperfusion (I/R) injury. Pretreatment with exogenous calcitonin gene-related peptide (CGRP) exerts a cardioprotective effect against myocardial I/R injury. Our previous study found that the CGRP level was decreased in diabetic hearts. This study aimed to investigate whether up-regulation of CGRP could reduce I/R injury ...
Borlaug Barry A - - 2011
Routine cardiac catheterization provides data on left heart, right heart, systemic and pulmonary arterial pressures, vascular resistances, cardiac output, and ejection fraction. These data are often then applied as markers of cardiac preload, afterload, and global function, although each of these parameters reflects more complex interactions between the heart and ...
Sjøli Benthe - - 2011
The aim of the study was to compare the ability of global strain and left ventricular ejection fraction (LVEF) to predict outcome after acute myocardial infarction (AMI). Left ventricular (LV) function was measured using strain by Doppler and LVEF in 77 patients. Measurements were performed at admission and after 10 ...
Yan Raymond T - - 2011
We sought to examine the prognostic value of subclinical left ventricular (LV) regional myocardial dysfunction (RMD) measured by magnetic resonance imaging (MRI) among asymptomatic individuals. LV RMD, defined as segmental impairment in systolic wall thickening, predicts adverse events in patients with established cardiovascular disease. MRI is highly accurate for detecting ...
Li Qianhong - - 2011
A model of intracoronary stem cell delivery that enables transgenesis/gene targeting would be a powerful tool but is still lacking. To address this gap, we compared intracoronary and intramyocardial delivery of lin(-)/c-kit(+)/GFP(+) cardiac stem cells (CSCs) in a murine model of reperfused myocardial infarction (MI). Lin(-)/c-kit(+)/GFP(+) CSCs were successfully expanded ...
Ma Huijie - - 2011
Previous studies have confirmed that tea polyphenols possess a broad spectrum of biological functions such as anti-oxidative, anti-bacterial, anti-tumor, anti-inflammatory, anti-viral and cardiovascular protection activities, as well as anti-cerebral ischemia-reperfusion injury properties. But the effect of tea polyphenols on ischemia/reperfusion heart has not been well elucidated. The aim of this ...
Teramoto Noboru - - 2011
A pig model of reduced left ventricular (LV) function and remodeling or chronic heart failure with long survival after myocardial infarction (MI) has not been established. The aim of this study was to evaluate the pathophysiologic status of a pig model of old MI using a series of PET studies. ...
Sanagala Thriveni - - 2011
Left Atrial Function During Right Ventricular Pacing. Background: RV pacing (RVP), even with preserved atrioventricular (AV) synchrony, may lead to left atrial (LA) enlargement and atrial fibrillation. However, inciting events are unknown. We hypothesized that RVP acutely impairs LA function by mechanisms affecting atrial contraction and/or ventricular diastole. Methods: LA ...
Wu Tsu-Juey - - 2011
BAPTA-AM and Repetitive Endocardial Focal Discharges. Introduction: In isolated rabbit hearts, repetitive endocardial focal discharges (REFDs) were consistently observed during ventricular fibrillation (VF) with prolonged (>5 minutes) global ischemia (GI). We hypothesized that BAPTA-AM, a calcium chelator, can suppress these REFDs. Methods and Results: Using a two-camera optical mapping system, we ...
Macron Laurent - - 2011
AIMS: To evaluate the impact of acoustic window on the feasibility and accuracy of longitudinal global strain (global-ε) by speckle tracking for assessing left ventricular (LV) systolic function. METHODS AND RESULTS: The study included 70 patients (57 ± 17 years, 64% men), 28 selected patients with a suboptimal image quality ...
Wei Zhang G - - 2011
We have recently developed a novel method transmyocardial drilling revascularization (TMDR) combined with heparinized bFGF-incorporating degradable tubular stent implantation to revascularize ischemic myocardium. The aim of the present study was to compare the effect of this new method on left ventricular (LV) remodeling and global function to traditional transmyocardial revascularization ...
Carpenter John-Paul JP Royal Brompton and Harefield NHS Trust, London, SW3 6NP, - - 2011
Measurement of myocardial iron is key to the clinical management of patients at risk of siderotic cardiomyopathy. The cardiovascular magnetic resonance relaxation parameter R2* (assessed clinically via its reciprocal, T2*) measured in the ventricular septum is used to assess cardiac iron, but iron calibration and distribution data in humans are ...
Tiemann Alexander Ghanem Wilhelm Röll Toktam Bostani Oliver Dewald Bernd K Fleischmann Jörg Stypmann Georg Nickenig Klaus - - 2011
Cellular cardiomyoplasty (CMP) is a novel therapeutic approach to myocardial injury (MI). Post-MI remodelling of the left ventricle (LV) comprises dilatation and impairment of systolic function and gives rise to progressive hemodynamic deterioration. We aimed to investigate: a) the impact of CMP on global and regional parameters of LV remodeling ...
Li Peng P Broad Center for Regenerative Medicine and Stem Cell Research, University of Southern California Keck School of Medicine, Los Angeles, CA 90089, - - 2011
Secreted factors from the epicardium are believed to be important in directing heart ventricular cardiomyocyte proliferation and morphogenesis, although the specific factors involved have not been identified or characterized adequately. We found that IGF2 is the most prominent mitogen made by primary mouse embryonic epicardial cells and by a newly ...
Kylmälä Minna M - - 2011
AIMS: To assess whether strain rate imaging (SRI) can serve to evaluate myocardial viability in patients with acute coronary syndrome (ACS). METHODS AND RESULTS: In 23 patients with ACS, we measured longitudinal tissue Doppler strain and strain rate values from left ventricular basal, mid, and apical segments (n = 414). ...
Kutty Shelby - - 2011
BACKGROUND: The influence of regional right ventricular (RV) dysfunction on the accuracy of Doppler tissue imaging (DTI) assessment of global RV function is unknown. The objective of this study was to determine the effect of regional dysfunction of the RV outflow tract (RVOT) on the correlations between RV DTI indices ...
Bell James R - - 2011
BACKGROUND: Ca(2+)/calmodulin-dependent protein kinase (CaMKII) activation is known to be associated with conditions where the incidence of arrhythmias is increased, and where cardiomyocyte Ca(2+)-overload occurs. The goal of this study was to determine whether CaMKII inhibition in the intact heart may be linked to the suppression of ventricular arrhythmias occurring ...
Marcus Karen A - - 2011
BACKGROUND: The accurate evaluation of intrinsic myocardial contractility in children with or without congenital heart disease (CHD) has turned out to be a challenge. Two-dimensional strain echocardiographic (2DSTE) imaging or two-dimensional speckle-tracking echocardiographic imaging appears to hold significant promise as a tool to improve the assessment of ventricular myocardial function. ...
Leung K Y Esther - - 2011
The use of automated methods is becoming increasingly important for assessing cardiac function quantitatively and objectively. In this study, we propose a method for tracking three-dimensional (3-D) left ventricular contours. The method consists of a local optical flow tracker and a global tracker, which uses a statistical model of cardiac ...
Nikus Kjell - - 2011
Background: Widespread ST-segment depression with inverted T waves maximally in leads V4-V5 (ie, the global ischemia electrocardiogram [ECG] pattern) is a marker of adverse outcome in patients with non-ST-segment elevation acute coronary syndrome (ACS), perhaps because this pattern is indicative of left main stem stenosis. However, the prognostic value of ...
Sliem Hamdy - - 2011
To evaluate the left ventricular structure and function in isolated metabolic syndrome. One hundred and fifty six consecutive adults with metabolic syndrome were enrolled in the study. Fifty nine had isolated metabolic syndrome (group A) and 97 had metabolic syndrome with hypertension and/or diabetes (group B). There was a control ...
Zhong L - - 2011
Surgical ventricular restoration (SVR) was designed to treat patients with aneurysms or large akinetic walls and dilated ventricles. Yet, crucial aspects essential to the efficacy of this procedure like optimal shape and size of the left ventricle (LV) are still debatable. The objective of this study is to quantify the ...
Shinohara Gen - - 2011
OBJECTIVE: An in vivo study of piglets on cardiopulmonary bypass was performed to determine whether postconditioning has a cardioprotective effect after cardioplegic arrest in large animals. METHODS: Eighteen piglets were subjected to 90 minutes of cardioplegic arrest followed by 30 minutes of reperfusion. In 6 animals (control), there was no ...
Dellegrottaglie Santo - - 2011
BACKGROUND: Isolated ventricular non-compaction (IVNC) is frequently, but not invariably, associated with left ventricular (LV) systolic dysfunction. Factors impacting on regional and global LV function are unknown. The aim of the study was to apply magnetic resonance imaging (MRI) to evaluate the impact of extent and severity of ventricular non-compaction ...
Aldakkak Mohammed - - 2012
We reported that the combination of reactive oxygen species (ROS) quenchers Mn(III) tetrakis (4-benzoic acid) porphyrin (MnTBAP), catalase, and glutathione (MCG) given before 2 hours cold ischemia better protected cardiac mitochondria against cold ischemia and warm reperfusion (IR)-induced damage than MnTBAP alone. Here, we hypothesize that high K(+) cardioplegia (CP) ...
1 2 3 4 5 6 7 8 9 10 >