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Left Ventricular torsion Changes Post Kidney Transplantation
Yan Deng,Anil Pandit,Raymond L. Heilman,Harini A. Chakkera,Marek J. Mazur,Farouk Mookadam 한국심초음파학회 2013 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.21 No.4
Background: To quantify changes of left ventricular (LV) torsion in patients’ pre and post kidney transplantation. Methods: A prospective study was conducted on 48 patients who received kidney transplantation for end stage renal diseaseand without myocardial infarction. The rotation, twist and torsion of LV were studied pre and post kidney transplantation (6months post transplantation) using velocity vector imaging by echocardiography. The data is expressed as mean ± standarddeviation and compared by paired t-test at the p < 0.05 significance level. Results: Six months post kidney transplantation, left ventricular ejection fraction (from 40.33 ± 11.42 to 61.00 ± 13.68%),ratio of mitral early and late diastolic filling velocity (from 1.04 ± 0.57 to 1.21 ± 0.52), rotation of basal LV (from 4.48 ± 2.66 to5.65 ± 2.64 degree), rotation of apical LV (from 4.27 ± 3.08 to 5.50 ± 4.25 degree), LV twist (8.75 ± 4.45 to 11.14 ± 5.25degree) and torsion (from 1.06 ± 0.54 to 1.33 ± 0.61 degree/cm) were increased significantly (p < 0.05). Interventricular septumthickness (from 11.67 ± 2.39 to 9.67 ± 0.48 mm), left ventricular mass index (from 104.00 ± 16.47 to 95.50 ± 21.44 g/m2),systolic blood pressure (from 143.50 ± 34.99 to 121.50 ± 7.09 mmHg), serum blood urea nitrogen (from 42.40 ± 7.98 to 30.43± 13.85 mg/dL) and creatinine (from 4.53 ± 1.96 to 2.73 ± 2.57 mg/dL) were decreased significantly (p < 0.05). Conclusion: Kidney transplantation in end stage renal disease without myocardial infarction results in improvement in leftventricular structure, function and myocardial mechanics as detected by echocardiography and velocity vector imaging. Velocityvector imaging provided valuable information for detection and follow-up of cardiac abnormalities in patients with end stagerenal disease.
James S. Etim,Alice S. Etim,George Heilman APEC국제교육협력원 2019 Asia-Pacific Cybereducation Journal Vol.15 No.1
It is generally believed that teachers are important both to student learning and achievement. Apart from teacher qualification and experience, some studies have shown that teacher gender may relate significantly to student achievement. The purpose of the study was to find out the following- (a) Does teacher gender significantly influence student academic achievement in English Language Arts at the junior secondary school level? (b). Does teacher gender significantly influence student academic achievement in Mathematics at the junior secondary school level? (c) Does teacher gender significantly influence student academic achievement in Biology at the junior secondary school level? Data was obtained from 570 students in seven junior secondary school students in South-East area of Nigeria. An analysis of data showed the following- In the English Language Arts area, and at the junior secondary school level, female students performed significantly higher than male students under a female teacher and male students performed better (but not statistically significant) under male teachers. In the area of Mathematics, female students performed significantly higher under male teachers. Based on the findings, recommendations were made on improving the teaching of English Language Arts, Mathematics and Integrated Science in Nigerian junior secondary schools.
Consecutive Versus Return Motor Perseveration During Line Cancellation Task in Hemispatial Neglect
Kim, Eun-Joo,Lee, Byung Hwa,Park, Key Chung,Suh, Mee Kyung,Ku, Bon D.,Heilman, Kenneth M.,Na, Duk L. Lippincott Williams Wilkins, Inc. 2009 COGNITIVE AND BEHAVIORAL NEUROLOGY Vol.22 No.2
BACKGROUND: Patients with neglect often repeatedly cancel the same targets, a form of motor perseveration (MP). There seems to be 2 types of MP, making uninterrupted multiple strokes for each target, consecutive MP (CMP) or return MP (RMP) where patients return to previously canceled targets and remark them. OBJECTIVE: The purpose of this study is to learn whether these 2 forms of MP are dissociable. METHODS: We studied 3 patients, 1 with primarily CMP, another with primarily RMP and a third with mixed CMP and RMP by having them perform the cancellation task with and without background movement. RESULTS: In the patient with primarily RMPs (patient 1), leftward background movement decreased the severity of the neglect and the perseveration. Rightward background movement increased both. In contrast to patient 1, who showed the correspondence between the severity of neglect and perseveration, the patient with both CMP and RMP (patient 2) and the patient with primarily CMPs (patient 3) did not show such correspondence. CONCLUSIONS: The different responses of CMP and RMP to the treatment of neglect suggest that different mechanisms account for these 2 forms of MP. Although RMP might be related to neglect induced aberrant approach behaviors, CMP seems to be related to a disengagement disorder.
Hemispheric Differences in Ischemic Stroke: Is Left-Hemisphere Stroke More Common?
Vishnumurthy Shushrutha Hedna,Aakash N Bodhit,Saeed Ansari,Adam D Falchook,Latha Stead,Kenneth M Heilman,,Michael F Waters 대한신경과학회 2013 Journal of Clinical Neurology Vol.9 No.2
Background and Purpose Understanding the mechanisms underlying stroke can aid the development of therapies and improve the final outcome. The purposes of this study were to establish whether there are characteristic mechanistic differences in the frequency, severity, functional outcome, and mortality between left- and right-hemisphere ischemic stroke and, given the velocity differences in the carotid circulation and direct branching of the left common carotid artery from the aorta, whether large-vessel ischemia (including cardioembolism) is more common in the territory of the left middle cerebral artery. Methods Trial cohorts were combined into a data set of 476 samples. Using Trial of Org 10172 in Acute Stroke Treatment criteria, ischemic strokes in a total 317 patients were included in the analysis. Hemorrhagic stroke, stroke of undetermined etiology, cryptogenic stroke, and bilateral ischemic strokes were excluded. Laterality and vascular distribution were correlated with outcomes using a logistic regression model. The etiologies of the large-vessel strokes were atherosclerosis and cardioembolism. Results The overall event frequency, mortality, National Institutes of Health Stroke Scale (NIHSS)score, Glasgow Coma Scale score, and rate of mechanical thrombectomy interventions differed significantly between the hemispheres. Left-hemispheric strokes (54%) were more common than right-hemispheric strokes (46%; p=0.0073), and had higher admission NIHSS scores (p=0.011),increased mortality (p=0.0339), and higher endovascular intervention rates (p≤0.0001). ischemic strokes were more frequent in the distribution of the left middle cerebral artery (122 vs. 97;p=0.0003) due to the higher incidence of large-vessel ischemic stroke in this area (p=0.0011). Conclusions Left-hemispheric ischemic strokes appear to be more frequent and often have a worse outcome than their right-hemispheric counterparts. The incidence of large-vessel ischemic strokes is higher in the left middle cerebral artery distribution, contributing to these hemispheric differences. The hemispheric differences exhibit a nonsignificant trend when strokes in the middle cerebral artery distribution are excluded from the analysis.
Park, Key Chung,Jeong, Yong,Lee, Byung Hwa,Kim, Eun-Joo,Kim, Gyung Moon,Heilman, Kenneth,Na, Duk Psychology Press, part of the Taylor Francis Group 2005 Neurocase Vol.11 No.5
<P>Damage to the left occipital lobe and the splenium or forceps major is often associated with pure alexia, thought to be an occipital-temporoparietal disconnection syndrome. A patient with the parallel lesion, a combined right occipital and splenial lesion, showed severe left-sided visual spatial neglect, but no significant neglect in other sensory modalities. This visual neglect might be related to a disconnection between the visual information processed by the left occipital lobe and the right posterior temporal-inferior parietal areas that mediate attention in the left hemispace.</P>
Deafferentation-disconnection neglect induced by posterior cerebral artery infarction
Park, K.C,Lee, B.H,Kim, E.J,Shin, M.H,K.M. Choi, K.M,S.S. Yoon, S.S,Kwon, S.U,Chung, C.S,Lee, K.H,Heilman, K.M,Na, D.L KYUNG HEE UNIVERSITY MEDICAL CENTER 2006 고황의학상 수상논문집 Vol.21-22 No.-
significantly differ between the right (48.0%) and left (35.0%) PCA groups, but the severity of hemispatial neglect was significantly greater in the right group. VFD alone did not influence the frequency or severity of neglect after controlling other variables. Isolated occipital lesions were rarely associated with hemispatial neglect, and it was only the occipital plus splenial lesion that significantly influenced the frequency and severity of neglect. Conclusions: This study suggests that after excluding such confounding factors as aphasia or hemiplegia, neglect frequency does not differ between the right and left posterior cerebral artery (PCA) groups, but the severity of neglect is greater after right PCA infarctions; even in the acute stage of PCA infarction; visual field defect from an isolated occipital lesion does not cause hemispatial neglect; and the injury to both the occipital lobe and the splenium of the corpus callosum is important for producing hemispatial neglect with PCA infarction.