نتایج جستجو برای: long qt in newborns
تعداد نتایج: 17076341 فیلتر نتایج به سال:
introduction: jaundice is one of the hospitalization causes in term and preterm infants. considering to the side effects of jaundice, the present study aimed to investigate the prevalence and risk factors associated with jaundice in neonates hospitalized in government hospitals in ilam. materials and methods: in a case - control study, 384 neonates were enrolled. all neonates hospitalized in mu...
introduction: congenital long qt syndrome (lqts) is a cardiac disorder characterized by qt interval prolongation at basal ecg. different lqts genes encode ion channel subunits or proteins involved in regulating cardiac ionic currents. long qt syndrome type 6 (lqt6) is caused by mutation in the kcne2 gene. our research aimed to analyze genetic variants of kcne2 gene causing the disease in irania...
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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...
A prospective electrocardiographic study was designed to establish baseline values for electrocardiographic measurements, with specific reference to the QT interval during infancy, and to test the "QT hypothesis" for the sudden infant death syndrome (SIDS). In this ongoing study, ECGs are recorded on the fourth day of life and in the second, fourth and sixth months. The state of health at 1 yea...
Long QT syndrome, which is defined by corrected QT interval longer than 0.45 seconds in men and o. 47 sec in women , could be divided into idiopathic (congenital ) and acquired forms. The idiopathic form is a familial disorder that can be associated with sensorineural deafness (Jervell and Lange- Neelson syndrome), which is transmitted with an autosomal recessive pattern. Although this syndrome...
objective(s): as mitochondrial oxidative stress is probably entailed in atp production, a candidate modifier factor for the long qt syndrome (lqts) could be mitochondrial dna (mtdna). it has been notified that ion channels' activities in cardiomyocytes are sensitive to the atp level. materials and methods: the sample of the research was an iranian family with lqts for mutations by pcr-sscp...
The short QT syndrome constitutes a new clinical entity that is associated with a high incidence of sudden cardiac death, syncope, and/or atrial fibrillation even in young patients and newborns. Patients with this congenital electrical abnormality are characterized by rate-corrected QT intervals<320 ms. Missense mutations in KCNH2 (HERG) linked to a gain-of-function of the rapidly activating de...
Introduction: Long QT syndrome (LQTS) is a type of ventricular arrhythmia characterized by prolonged QT intervals on electrocardiogram or delay in ventricular repolarization and it can lead to syncope, seizure and sudden cardiac death. Here, KCNE1 and KCNE2 variants are studied among Iranian affected families with this syndrome. Materials and Methods: Fifty patients referring to Rajaei Cardiov...
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