نتایج جستجو برای: qtd

تعداد نتایج: 258  

2016
Onder Ozturk Unal Ozturk Sebnem Nergiz M. Zulkif Karahan

BACKGROUND AND OBJECTIVES Genetic influence on T-wave peak to End (Tpe) time in patients with a first anterior acute myocardial infarction (AMI) is uncertain. A polymorphism in the angiotensin-II type 1 receptor (AT1R) gene was discovered recently. The polymorphism consists of an A or C variant, given three different possible genotypes: AA, AC, CC. The purpose of this study was to determine the...

Journal: :Heart 1998
H E Tutar B Ocal A Imamoglu S Atalay

OBJECTIVE To determine the normal values of QT and QTc dispersion and the effects of sinus arrhythmia on QT dispersion in healthy children. PATIENTS AND SETTING The study was carried out in a university hospital on 372 local schoolchildren (200 male, 172 female), aged seven to 18 years. METHODS The QT and preceding RR intervals of at least one sinus beat were measured manually in a range of...

ژورنال: :hormozgan medical journal 0
مرضیه نیک پرور m nikparvar گروه داخلی، بخش قلب، بیمارستان شهید محمدی، دانشگاه علوم پزشکی هرمزگان، بندرعباس، ایران شهداد خسروپناه sh khosro panah محمدحسن نعمتی m.h nemati حسین فرشیدی h farshidi

مقدمه: پراکندگی قطعه qt یا qt dispersion (اختلاف حداکثر و حداقل فاصله qt) نشان دهنده رپلاریزاسیون ناهمگون بطنی می باشد که ممکن است زمینه ای برای آریتمی های جدی بطنی باشد. این ناهمگونی می تواند باعث عواقب بد کلینیکی برای بیماری که درگیری عروق کرونر دارد، شود. بعضی از مطالعات نشان داده اند که پراکندگی qt بعد از آنژیوپلاستی موفق به دنبال برقراری مجدد جریان خون کرونر کاهش می یابد، ولی اثر cabg. کرو...

Journal: :iranian journal of child neurology 0
amir hosein movahedian 1. department of pediatric cardiology, tehran university of medical sciences, tehran, iran marzieh heidarzadeh arani 2. department of asthma, allergy & immunology, kashan university of medical sciences, kashan, iran davood motaharizad 3. pediatrician, kashan university of medical sciences, kashan, iran gholam abbas mousavi 4. statistics, kashan university of medical sciences, kashan, iran ziba mosayebi 5. department o f neonatology, tehran university of medical sciences, tehran, iran

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...

ژورنال: فیض 2013
موحدیان, امیرحسین , حیدر زاده, مرضیه , مسیبی, زیبا, مطهری زاد, داوود , موسوی, سید غلامعباس ,

سابقه و هدف: حملات ریسه رفتن یک پدیده ناگهانی و رفلکسی است که در شیرخوارگی و ابتدای طفولیت شایع می باشد. سندروم QT طولانی و اختلالات ناگهانی ریتم باید در تشخیص افتراقی این حملات در نظر گرفته شوند. هدف از این مطالعه بررسی پراکنش QT در کودکان مبتلا به ریسه رفتن می باشد. مواد و روش ها: در این مطالعه ی مقطعی از 56 کودک مبتلا به ریسه رفتن و 56 کودک سالم EKG گرفته شده و QTd و QT cd در آن ها مطالعه گر...

2017
Thomas Lynch Robert Zeller Tom Lynch

This chapter surveys and assesses from an ecocentric perspective some representative literary portrayals of the Australian deserts. Generally, it contrasts works that portray the desert as an alien, hostile, and undifferentiated void with works that recognise and value the biological particularities of specific desert places. It explores the literature of three dominant cultural orientations to...

Journal: :Kardiologia polska 2011
Wojciech Szczeklik Barbara Magdalena Sokołowska Lucyna Mastalerz Tomasz Miszalski-Jamka Karolina Pacult Jacek Górka Jacek Musiał

BACKGROUND Churg-Strauss syndrome (CSS) is a rare, systemic necrotising small and middle-sized vessel vasculitis, accompanied by blood eosinophilia, eosinophil infiltration of various tissues and bronchial asthma. Cardiac injury caused by myocardial eosinophilic infiltration and/or vasculitis in CSS seems to be very common. Active inflammatory process accompanied by myocardial fibrosis has been...

Journal: :Kardiologia polska 2008
Marlena Olszak-Waśkiewicz Leszek Kubik Mirosław Dziuk Ewa Sidło Krzysztof Kucharczyk Radosław Kaczanowski

BACKGROUND Post-MI patients are highly susceptible to sudden cardiac arrest (SCA) and sudden cardiac death (SCD) resulting from ventricular arrhythmia (VA). The search for new clinical predictors to identify those patients who are at the highest risk of these events is therefore essential. Numerous data indicate that the presence of polymorphisms and mutations in the cardiac ion channel genes S...

ژورنال: Hormozgan Medical Journal 2009
Iranpour, D, Kooshesh, F, Sharifi, SH, Sobahni, GH, Yazdankhahfard, M.R,

Introduction: Sudden cardiac death is common in patients on hemodialysis and may occur in the immediate postdialysis period when ventricular premature complexes are common. QT dispersion reflecting hetovogelity in ventricle repolarization has been used for predicting patients with risk of malignant arrhythmia and sudden death. The purpose of the study was to assess the effect of hemodialysis on...

2010
Robert Zeller Tom Lynch Gaile McGregor

This chapter surveys and assesses from an ecocentric perspective some representative literary portrayals of the Australian deserts. Generally, it contrasts works that portray the desert as an alien, hostile, and undifferentiated void with works that recognise and value the biological particularities of specific desert places. It explores the literature of three dominant cultural orientations to...

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