Korean Circ J.  1981 Dec;11(2):73-82. 10.4070/kcj.1981.11.2.73.

Electrocardiographic and Echocardiographic Analysis in Atrial Septal Defect, Ostium Secundum Type

• Park YK
• Lee BH
• Lee CK

• KMID: 2229764
• DOI: http://doi.org/10.4070/kcj.1981.11.2.73

Abstract

The electrocardiographic and echocardiographic analysis was made on 23 patients with atrial septal defect of ostium secundum type, who were confirmed by right heart catheterization under admission at hanyang University Hospital from january 1979 to July 1981. Following results were obtained: 1) In the 23 patients, 13 were male and 10 female. Their ages ranged from 6 to 45 years, mean age being 19.9 years. 2) In 18 patients(78.3%), the QRS axis was between +90degrees and +150degrees. No significant correlations could be demonstrated between QRS axis and some hemodynamic parameters(right ventricular systolic pressure, pulmonary artery mean pressure and pulmonic to systemic flow ratio), and also, between QRS axis and the size of right ventricular dimension index. 3) Right ventricular outflow tract hypertrophy, right ventricular hypertrophy and complete right bundle branch block pattern in Lead V3R or V1were observed in 95.7% of ostium secundum defect. No significant correlations could be found between types of QRS complexes and some hemodynamic parameters(right ventricular systolic pressure, pulmonary artery mean pressure and pulmonic to systemic flow ratio), and also, between types of QRS complex and the size of right ventricular dimension index. 4) The mean amplitude of S wave in precordial Lead V6was 7.6mm. There was a definite correlation between the amplitude of S wave in Lead V6and right ventricular systolic pressure. No significant correlations could be demonstrated betwen the amplitude of s wave in Lead V6and some hemodynamic parameters(pulmonary artery mean pressure and pulmonic to systemic flow ratio), and also, the size of right ventricular dimension index. 5) Right ventricular dimension index was increased in all cases but one. A significant correlation was found between the size of right ventricular dimension index and pulmonary artery mean pressure, whereas no significant correlation could be demonstrated between the size of right ventricular dimension index and pulmonic to systemic flow ratio. 6) 95.7% of 23 patients with ostium secudum defect showed paradoxical septal motion was proved not to be associated with other congenital heart disease by cardiac catheterization. The pulmonic to systemic flow ratio in groups of septal motion type A was significantly increased than that of normal septal motion group, whereas no significantl relation between types of septal motion and the size of right ventricular dimension index was observed.

MeSH Terms

Arteries
Axis, Cervical Vertebra
Blood Pressure
Bundle-Branch Block
Cardiac Catheterization
Cardiac Catheters
Echocardiography*
Electrocardiography*
Female
Heart Defects, Congenital
Heart Septal Defects, Atrial*
Hemodynamics
Humans
Hypertrophy
Hypertrophy, Right Ventricular
Male
Pulmonary Artery