The electrocardiogram in tetralogy of Fallot
| Autor: | Edward C. Lambert, Douglas L. Roberts, Henry R. Wagner |
|---|---|
| Rok vydání: | 1972 |
| Předmět: |
Male
medicine.medical_specialty Cardiac Catheterization Time Factors Adolescent Pulmonic stenosis Heart Ventricles Cardiomegaly Left ventricular hypertrophy Functional Laterality QRS complex Electrocardiography Right ventricular hypertrophy Internal medicine medicine Humans cardiovascular diseases Child Tetralogy of Fallot business.industry Age Factors Infant Newborn Infant medicine.disease Precordium Oxygen medicine.anatomical_structure Child Preschool Abnormal T-wave cardiovascular system Cardiology Female Cardiology and Cardiovascular Medicine Right axis deviation business |
| Zdroj: | Journal of electrocardiology. 5(2) |
| ISSN: | 0022-0736 |
| Popis: | Summary The ECG in 100 patients with proven isolated tetralogy of Fallot and no surgery was analyzed. 96% had signs of right ventricular hypertrophy. No patient had left ventricular hypertrophy or a QRS axis in the left upper quandrant in the frontal plane. In order of decreasing frequency, the signs of right ventricular hypertrophy were: abnormal R/S ratio in V 1 , right axis deviation in the frontal plane, abnormally low R/S ratio in V 6 , abnormally deep S waves in V 6 , abnormal R wave in V 1 , abnormal T wave in the right precordium and q waves in V 1 . Slurring, notching or rsR′ complexes in V 1 were frequently found in tetralogies, but not more so than in pulmonic stenosis with intact septum. There is no correlation between the hemodynamic severity and the electrocardigraphic criteria for right ventricular hypertrophy. The electrocardiogram in patients with tetralogies changed very little as time elapsed. A lack of increase or a decrease in left ventricular precordial potentials was seen most frequently. |
| Databáze: | OpenAIRE |
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