نتایج جستجو برای: qtd
تعداد نتایج: 258 فیلتر نتایج به سال:
BACKGROUND Doppler echocardiographic studies in patients with beta-Thalassemia Major (beta-TM) had shown different patterns of left ventricle (LV) systolic and diastolic dysfunctions. AIM This cross-sectional study was designed to study the LV systolic and diastolic function in patients with beta-TM using Pulsed Doppler (PD) Echocardiogram and assess the QTc interval and QT dispersion (QTd) o...
In the general population, left ventricular hypertrophy (LVH), either defined by echocardiographic or electrocardiogram (ECG) criteria, is strongly predictive of cardiovascular events, independent of conventional risk factors (1–3). Normotensive type 1 diabetic patients with nephropathy have an increase in left ventricular mass independent of blood pressure (4) and a decrease in diastolic funct...
Objective: Atrial fibrillation (AF) and gastroesophageal reflux disease (GERD) are very common in daily clinical practice. Post-prandial AF episodes have been reported GERD patients. Although it was previous studies that caused by sympathovagal imbalance, there no on cardiac conduction system involvement. In this study, we aimed to evaluate whether the risk of developing increases untreated pat...
introduction: prolongation of qt interval might result in dangerous cardiac arrhythmias, including torsades de pointes (tdp), consequently leading to syncope or death. a limited number of studies carried out in this respect to date have shown that qt interval might increase during pregnancy. on the other hand, it has been shown that each pregnancy might result in an increase in the risk of card...
کم کاری تحت بالینی تیروئید تظاهرات و عوارض قلبی و عروقی گوناگونی دارد که این تظاهرات و عوارض در کم کاری آشکار تیروئید به وفور مورد مطالعه قرار گرفته است اما در مورد کم کاری تحت بالینی و عوارض آن بر سیستم قلبی و عروقی به شکل محدود مورد بررسی قرار گرفته است. فاصله qtc و در الکتروکاردیوگرافی نشان دهنده میزان زمان دپولاریزاسیون و رپولاریزاسیون بطن¬ها می¬باشد و qt dispersion بیانگر تفاوت در میزان تغ...
INTRODUCTION AND OBJECTIVES The objective of this study was to compare heart abnormalities in young women with anorexia nervosa and in a control group of the same age and sex. Patients and method. We report a matched case-control study of 30 adolescents with anorexia nervosa and 30 healthy women of the same age with normal weight. An electrocardiogram and echocardiogram were done. Heart paramet...
Akdag et al1 by investigating several P-wave parameters and the QT interval have recently showed an increased P wave dispersion (PD) and QT dispersion (QTd) in patients affected by polycystic ovary syndrome (PCOS). As acknowledged by the Authors, this population exhibits a high prevalence of cardiac and stroke events and interestingly it shows many risk factors in common with atrial fibrillatio...
eorge Eliot’s legacy for modernism is worth considering on multiple grounds but especially in the context of religious belief and its influence on social morality. The comments of two early twentieth-century writers are suggestive of the mixed nature of her legacy. On the one hand, novelist Virginia Woolf (among the most strident critics of Victorian culture) famously said of Middle-march (1872...
background: cardiovascular mortality and morbidity are high in chronic renal failure (crf) patients. increased dispersion of qt intervals is known to predispose to ventricular arrhythmias and sudden cardiac death. this study was conducted to assess the effect of hemodialysis (hd) on corrected qt (qtc) intervals and their dispersions (qtd) in chronic hemodialyzed patients. methods: fifty-eight p...
In this article a scheme for image transmission over Wireless Sensor Networks (WSN) with an adaptive compression factor is introduced. The proposed control architecture affects the quality of the transmitted images according to: (a) the traffic load within the network and (b) the level of details contained in an image frame. Given an approximate transmission period, the adaptive compression mec...
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