Introduction: Electrocardiography is a simple, non-invasive and relatively cheap investigative tool used for cardiac evaluation. However, there are limited electrocardiographic studies of Indian children. These differences may also be seen in children, hence, the need to develop local reference values. Material and Methods: This was a cross-sectional study on selected 350 subjects. An 12 lead E...

T he electrocardiogram shown in Figure 1 was read by the computer as arm-lead reversal. Th e computer reading went on to say that no further analysis would be attempted. Th is clearly is a programming mistake because the precordial leads make the diagnosis. Although we would estimate that 95% of electrocardiograms with negative P, QRS, and T waves in lead I are due to armlead reversal, a small ...

BACKGROUND AND OBJECTIVES It is important to analyze right-sided chest electrocardiograms (ECGs) to rule out combined right ventricular infarction in patients with inferior wall infarction. However, the patterns of right-sided chest ECGs in healthy adults have not been thoroughly investigated. This study was conducted to analyze the normal patterns of ECGs and the prevalence of ST segment eleva...

背景：近年，学校心臓病検診で初発見される先天性心疾患の多くは心房中隔欠損症である．そのためV1誘導でのrsR′型の不完全右脚ブロック型には注意しているが，二次検診でその所見が消失することがある．また，V6誘導の深いQ波も二次精検で消失することがある．この原因を検索した．

The incidence of the four main types of axis deviation in each diagnostic group of congenital malformations of the heart was found by an examination of 2,752 electrocardiograms from the Harriet Lane Home Cardiac Clinic. Records from patients with dextrocardia or dextrarotation of the heart, and those with complete bundle branch block were excluded. The precordial and unipolar limb leads in the ...