Congenital heart disease electrocardiogram

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Associate Editor-In-Chief: Keri Shafer, M.D. [2],Atif Mohammad, M.D., Priyamvada Singh, MBBS

ELECTROCARDIOGRAM

ECG has been found to be of little help in diagnosing congenital heart malformation in premature and newborn infants. However, in older children they are of some use. Some of the ECG findings and their indications are as follow-

• After 3 days of life a persistently elevated T wave may suggest a right ventricular hypertrophy.
• Counterclockwise superior oriented QRS with reduced right ventricular force suggests tricuspid atresia
• Counterclockwise superior oriented QRS suggests endocardial cushion defects.
• Normal QRS with predominant left ventricular force suggests pulmonic atresia
• It can pick rhythm disturbances like supraventricular tachycardia and complete heart block.
• A MI pattern on ECG may suggest an anomalous pulmonary origin of coronary artery.
• Depressed or flattened T wave in lateral precordium suggest subendocardial ischemia

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