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Background and Aims: Syncope is due to brain dysfunction and is a common compliant among children. It accounts for almost 3% of all emergency departments (ED) visits. The aim of this study was to evaluate the QT dispersion in children with syncope in Shahid Beheshti Hospital of Kashan in 2014.Methods: This was a descriptive cross-sectional study performed among 50 children with syncope attacks (case group) referred to the Clinic of Shahid Beheshti Hospital in Kashan during 2014 and 50 healthy children (control group) referred to the center for causes such as a cold or developmental examination. ECG was taken and QT, QTd (QT dispersion), QTc (Corrected QT interval) and QTcd (QTmin-QTmax =QT dispersion) intervals were studied. After proper explanation to the parents, data was obtained from the case and control group and was analyzed using Chisquare, Mann-Whitney, Kolmogorov–Smirnov, Levene›s, Kruskal-Wallis statistical tests.Results: Total, there were 100 children in the study, the participants were divided into two groups of case (n=50) and control (n=50). Among the studied children, a total of 46 of them (46%) were boys. The mean age range of children in the case and control groups were 7.73± 2.33 and 8.09± 2.31 years, respectively (P-value 0.440). The mean QTmax, QTcmax, QTd and QTcd in the case group were 348.80 ± 46.93, 464.94±48.71, 47.80±19.72, 68.36±24.59 ms (millisecond) respectively and 305.28 ±35.52, 395.70 ±50.05, 29.68±13.45, and 45.16±24.46 ms respectively in the control group. There was a significant difference in terms of each of the 4 parameters (P

Background: Speckle tracking echocardiography has great value in evaluation of regional and global myocardial function. Objectives: The goal of this study was an assessment of cardiac function and remodeling in children with thalassemia major after infusion of a high dose of deferoxamine during a short course by speckle echocardiography and evaluate the efficacy of this imaging modalities in the early recognition of recovering of myocardial dysfunction. Methods: In a prospective study between Feb 2014 till 2017 conventional 2 dimensional and speckle tracking echocardiography were done consecutively on 21 patients with beta-thalassemia major before intravenous infusion of high dose of deferoxamine (50 mg/kg) for 5 days and then after 3 months echocardiographic measurements repeated for assessment of efficacy of deferoxamine infusion on ventricular function and cardiac remodeling of our study population. Results: Serum ferritin of all patients reduced significantly (P < 0.001). Ejection fraction was improved after the therapy (P < 0.001). Mitral E/A velocity ratio after therapy increased significantly (P < 0.001). Strain imaging measures showed an increase in apical lateral, mid-lateral, basal lateral, mid-septal, basal septal left ventricular longitudinal wall strain three months after the use of high dose deferoxamine (P < 0.001). Apico-septal wall strain measurements of the left ventricle did not change significantly after high dose deferoxamine (P = 0.144). Conclusions: Intravenous infusion of high dose of deferoxamine after chelating of iron results in reduction of serum ferritin which may cause washout of cardiac deposit of iron with consequent improvement of cardiac function and remodeling.

Background: Patent ductus arteriosus (PDA) is an important risk for heart failure due to left to right shunt in term neonates. Objectives: In this study, we evaluated the effect of high dose ibuprofen in closure of PDA in term neonates. Patients and Methods: We used double dose ibuprofen (20 mg/kg, 10 mg/kg, and 10 mg/kg) for 3 - 30 day old term neonates with PDA who were admitted in the neonatal wards of Shiraz University of Medical Sciences. The results of this study were compared to the data of the previous study in our center which used the low dose of ibuprofen (10 mg/kg, 5 mg/kg, and 5 mg/kg). Results: 29 full term neonates received high-dose ibuprofen, in 18 neonates, PDA was closed after 4 days (62.1% versus 43.3% for the standard dose and 4.7% for the control group in the previous study) (P = 0.001). The results showed no significant correlation between the closure rate and gestational age, postnatal age, sex, and weight. In the 4 th day of treatment, size of the pulmonic end of ductus arteriosus decreased from 2.09 mm to 0.77 mm compared to 1.68 mm to 0.81 mm in the standard dose of oral ibuprofen and 2.1 mm to 1.4 mm in the control group (P = 0.046). Conclusions: This study indicated that high-dose oral ibuprofen was more effective in closing or decreasing the size of PDA.