Electrocardiographic Repolarization Abnormalities(ECGRA) ;ST segment and T wave changes,QT prolongation and prominent U wave are common in patients with intracerebral hemorrhage. These ECGRA have an effect on the rehabilitation and prognosis of the patients .This descriptive - prospective study was carried out in patients with thalamic, putaminal and temporal lobe hemorrhages during a 19 month period at Emam Reza Hospital ,Birjand. The new ECGRA findings were compared with a recent ECG. Volume of hematoma was calculated by Broderick formula using brain CTScan. The relation between the hematomas volume and severity of ECGRA was tested by" Pearson " analysis .The correlation coefficient of hem atom a volume and severity of ECG RA in 14 thalamic, 18 putaminal and 8 temporal lobe hematomas were r=0/16,r=0,r=-0/2 respectively . Patients with small hematoma(less than 20 cubic centimeters) in thalamus had more sever ECGRA than those with putaminal and temporal lobe hematomas. The higher correlation coefficient between hematoma volume and ECGRA in thalamus is probably due to the effects of these hematomas on hypothalamic sympathetic centers.

Objective: Breath-holding spells are known as benign attacks, frequencies of which decrease by the development of the autonomic nervous system. The present study aims to compare the electrocardiographic Repolarization in children with breath-holding spells.Methods: In this study, QT dispersion, QTc dispersion, T peak to T end dispersion, and P wave dispersion of the twelve-lead surface electrocardiography of fifty children who had breath-holding spells were measured and compared with normal children from April 2011 to August 2012.Findings: Forty-four (88%) patients had cyanotic spells, while 6 (12%) had pallid spells. QTc dispersion was increased in the patients with breath-holding spells (148.2±33.1) compared to the healthy children (132±27.3) and the difference was statically significant (P=0.01). Meanwhile, no statistically significant differences were observed between the patients and the control subjects regarding the other parameters (P>0.05).Conclusion: QTc dispersion was significantly increased in the patients with breath-holding spells compared to normal children and this is a sign of cardiac Repolarization abnormality as well as the increased risk of cardiac arrhythmia in patients with breath-holding spells.

Background: The clinical features of early Repolarization in children are important to prevent cardiac complications and sudden death. The aim of this study was to investigate the characteristics, clinical manifestations and frequency of early Repolarization and the frequency of ventricular and atrial arrhythmias in children. Methods: The present retrospective, cross-sectional study took in to account the files of 78 children between the ages of 5 and 18 with atrial or ventricular arrhythmia. Based on the ST segment pattern, the early Repolarization was divided into malignant and benign categories, and according to the involvement of the lower and lateral leads, it was divided into three categories of low, medium and high risk. Findings: Among the 78 investigated cases, the frequency of early Repolarization was 21. 8% (95% CI: 13-32) and 56. 25% of the patients were in the benign group. Around 75% of the children with early Repolarization had clinical symptoms, the most common symptom being palpitations (12. 78%). The most common arrhythmias were ventricular tachycardia and ventricular fibrillation amounted to 87. 21% and 25. 6%. The most common arrhythmias with atrial origin were supraventricular tachycardia (50%), atrial flutter (37. 9%), atrial tachycardia (25. 6 %) and atrial fibrillation (12. 3%) respectively. There was a significant relationship between the type of arrhythmias and Repolarization. Conclusion: The presence of early Repolarization in children's ECG should be taken into consideration for the occurrence of atrial and ventricular arrhythmias. Also, in patients with palpitations, it can be important to check early Repolarization even with a benign pattern.

Background: Children with mitral valve prolapse (MVP) may be prone to ventricular arrhythmias due to transmural dispersion of Repolarization (TDR). This study aimed to assess alterations in ventricular Repolarization in children with MVP and to investigate their relationships with the degree of mitral regurgitation. Methods: Fifty children with MVP and 50 age-and sex-matched healthy children as controls were studied. Twelve-lead electrocardiography and echocardiography were performed in all the subjects. TDR parameters were QT and QTc intervals, QTc dispersion, Tp-e interval, Tp-e interval dispersion, Tp-e/QT, Tp-e/QTc, JTc, JTc dispersion, Tp-e/JT, and Tp-e/JTc. Results: The mean age of the 50 patients with MVP was 12. 45± 2. 50 years (F/M: 15/35). There were no significant differences in QT and QTc intervals between the 2 groups. QTc dispersion (P=0. 001), Tp-e dispersion interval (P=0. 002), Tp-e/QTc (P=0. 001), JTc dispersion (P=0. 023), Tp-e/JT (P=0. 004), and Tp-e/JTc (P=0. 002) were signifi cantly higher in the patients with MVP than in the healthy controls. Positive correlations were found between Tp-e dispersion interval and Tp-e/QTc and an increase in the degree of mitral regurgitation (P=0. 012, r=0. 42 and P=0. 004, r=0. 31, respectively). Additionally, positive correlations were detected between JTc dispersion and Tp-e/JTc and an increase in the degree of mitral regurgitation (P=0. 032, r=0. 20 and P=0. 024, r=0. 42, correspondingly). Conclusion: In this study, TDR was damaged in children with MVP and was positively correlated with an increase in the degree of mitral regurgitation. It appears that children with MVP are prone to life-threatening ventricular arrhythmias.

Background: Early Repolarization (ER) is a common finding of the routine electrocardiogram (ECG). The ER usually considered a benign ECG finding, nevertheless a controversy. This study was conducted to investigate the relationship between early Repolarization (ER) and the severity of coronary artery disease in patients with a diagnostic coronary angiography. Methods: This case-control study included ninety patients (45 patients and 45 control groups) with a diagnostic angiography and was conducted in 2015. After obtaining informed consent, patients with angiography for ER were considered as cases and those for other purposes were as controls. Data were analyzed using SPSS software Version 16. A p-value lesser than 0. 05 was significant. Results: The frequency of ER was higher in men (75. 6%), and there was a significant relationship between sex and ER (P=0. 003). The mean age of the patients in the ER group was lower than that of non-ER patients, but not statistically significant (P=0. 1). Abnormal angiography was more prevalent in patients with ER than non-ER patients (59. 6% vs. 40. 4%). ER morphology showed a significant correlation to abnormal angiography and also stenosis severity (P=0. 035). Conclusion: ER was higher in men than in women. There was a significant correlation between the existence of ER morphology and atherosclerosis severity. Screening programs for ER detection may reduce the risk of arrhythmias and prevent related complications.