All issues > Volume 4(1); 1961

Original Article

J Korean Pediatr Soc. 1961;4(1):61-72. Published online March 31, 1961.

Electrocardiographic Findings in Several Diseass of The Korean Children

Hi Yong Oh¹

¹Department of Pediatrics,Soo Do Medical College, Seoul,Korea.

Abstract

From April, 1958, to November, 1958, the electrocardiographic studies were performed for 79 cases of sick children in our hospital. These sick children were those of 8 cases of poliomyelitis, 18 cases of acute or chronic nephritis, 19 cases of anemia and 34 cases of tuberculosis. (Table 1) Standard extremity, unipolar limb and precordial leads were made on groups of each diseases The pulse rate, RR interval and the contour, voltage and duration of each wave in the standard extremity, unipolar limb and precordial leads were studied in groups of each disease. (Tables 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 12, 14, 15, 16, 17, 18). Every waves were measured and the electrocardiographic findings of these sick groups were compared with the findings of. normal healthy children. Summary : A)Studies on Poliomyelitis Cases; (1) Sinus tachycardia was observed in whole cases(2) The voltage of P wave was decreased than healthy children,and duration of P wave was prolonged in lead II(3) The voltage of R wave was decreased in standard leads, and deep S wave was noted in whole leads. (4)The ventricular activation time was prolonged in lead V1,but,was shortened in lead v5 (5)The negative direction of ST segment was observed. (6)The lower T wave was observed in lead II, aVL, V5. B)Studies on Acute or Chronic Nephritis Cases: (1) Frequently pulse rates was elevated. (2) The voltage of P wave was decreased in lead II, and v1 (3)The right axis deviation was seen in 16% of the cases and the left axis deviation was noted in 5%. (4) The Q wave was noted in 16% in lead I, and in 27% in lead aVR. (5) Deep S wave was observed in all leads. (6) The ventricular activation time was prolonged in lead II. (7) The negative direction of ST segment was seen. (8) The low voltage of T wave was observed in all leads but T wave was incresed than normal in lead aVL. (9) The duration of the T wave was prolonged in 50% of the cases and QT interval was prolonged in 74% of the cases. C) Studies on Anemia Cases： (1) Frequently pulse rates wese elevated without fever. (2) The voltage of P wave was decreased in lead I, but was increased in lead V1. (3) The duration of P wave and PQ interval were prolonged and the asynchronism was not rare. (4)The left axis deviation was seen in 10% of the cases and counter clockwise rotation was noied in 31%. (5) The Q wave appeared in leads V1,V2, V3 in 10% each. (6) The duration of QRS complex and the ventricular activation time in lead V1 was prolonged. (7) The contour of QRS waves exhibited qR, rSr formula in 10% each. (8) The negative direction of ST segment was observed. (9) The duration of T wave and the QT interval were prolonged in 68% and in 84% of the cases each. D)Studies on Tuberculosis cases: (1) Sinus tachycardia with feverwas noted in whole cases. (2) The right axis deviation was seen in 14% and the counter clock wise rotation was noted in 20% of the Cases. (3) The Q wave was seen in 44% of the cases in lead 1, and was appeared in leads V1,V2, V3 in 5% each. (4) Deep S and Q wave were noted and the voltage of R wave was increased in all leads. (5) The ventricular activation time was prolonged in lead I, but was shortened in lead V5. (6) The inverted T wave was noted in leads H. aVF in 5% each. (7) The voltage of T wave was decreased in all leads, and the duration of T wave was prol onged in 70% of the cases.(Author’s abstract)

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