نتایج جستجو برای: qt طولانی
تعداد نتایج: 26905 فیلتر نتایج به سال:
ramadan fasting is one of the most important religious duties of muslims, that its effect on the heart has not been determined yet. our objective was to evaluate the effect of ramadan fasting on ventricular repolarization as assessed by qt interval, corrected qt interval, qt dispersion or corrected qt dispersion. sixthy healthy subjects aged 20 to 35 years were dispersion included in this study...
background: passive cigarette smoking is a known cause of a variety of diseases. however, most of the studies done in this field have focused on its chronic effects on human health. studies considering the acute effect of smoking on qt dispersion, on the other hand, with its known predictive role in the occurrence ventricular arrhythmia and sudden cardiac death are sparse. objectives: this st...
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...
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...
Çongenital long-QT syndrome (LQTS) is an inherited disorder that presents with syncope, polymorphic ventricular tachycardia, torsade de pointes and sudden death. The incidence rate of LQTS is 1 to 2 per 100000 and mainly involves children and young individuals. Because of familial and genetic underling and predisposing factors for life threatening arrhythmias in patients, diagnosis and treatm...
Background: Long QT syndromes (LQT) are genetic abnormalities of ventricular repo-larization, with an estimated incidence of about one per 10000 births. It is characterized by prolongation of the QT interval in electrocardiogram (EKG) and associated with a high risk for syncope and sudden death in patients. Type of this syndrome is association with congenital deafness. Our objective was to eval...
how to cite this article: movahedian ah, heidarzadeh arani m, motaharizad m, mousavi gha, mosayebi z. evaluation of qt dispersion in children with breath holding spells. iran j child neurol. winter 2016; 10(1):25-30. abstract objective breath holding spells (bhs) are common involuntary reflexes in infancy and early childhood. differential diagnosis should embrace long qt syndrome (lqts) and par...
مقدمه: سندرم Q-T طولانی بدون علت شکل نادری است و افراد مبتلا به این بیماری دارای اختلالات رپولاریزاسیون در الکتروکاردیوگرافی می باشند که می تواند منجر به سنکوپ و مرگ ناگهانی گردد. سندرم طولانی شدن Q-T مادرزادی یا بدون علت می تواند همراه کری مادرزادی باشد که به صورت اتوزومال رسسیو انتقال می یابد. هدف این مطالعه بررسی فاصله Q-T در بیماران مبتلا به کری مادرزادی بوده است. روش کار: این مطالعه مورد –...
چکیده ترمتوپریم به همراه سولفامتوکسازول طیف اثر گستردهای بر فعالیت باکتریهای گرم مثبت و منفی دارد. با وجود اثرات مثبت این داروها در درمان بیمارهای دامی عوارض جوانبی متعددی نیز برای این داروها گزارش شده است که عبارتند از: عوارض پوستی، مشکلات خونی، گوارشی، کلیوی و بیماری های قلبی و عروقی. به نظر میرسد اثرات قلبی این دارو با بلوک کانالهای پتاسیمی و طولانی کردن فاصله QT همراه باشد. هدف ازمطالعه...
We consider a class of subcritical superprocesses (Xt)t≥0 with general spatial motions and branching mechanisms. study the asymptotic behaviors Qt,r, distribution Xt conditioned on Xt+r not being null measure. first give existence limt→∞Qt,r limr→∞Qt,r, then show that an LlogL-type condition is equivalent to iterated limits: limr→∞limt→∞Qt,r limt→∞limr→∞Qt,r. Finally, when holds, we those limit...
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