J Korean Radiol Soc.  1984 Sep;20(3):540-546. 10.3348/jkrs.1984.20.3.540.

Pulmonary arterial hypertension in congenital heart disease: correlation of radiologic index with hemodynamicdata

• Choi YH

• KMID: 2463010
• DOI: http://doi.org/10.3348/jkrs.1984.20.3.540

Abstract

It is well known that pulmonary arterial hypertension in congenital heart disease is an important prognostic factor, as is pulmonary vascular resistance. So it is tempting to get certain radiologic index that could predict the presence and the degree of pulmonary arterial hypertension. A total of 152 cases of left to right shunt with pulmonary arterial hypertension and 50 cases of left to right shunt without pulmonary arterial hypertension is presented, in which cardiac catheterization and angiocardiography were done at the Department of Radiology, Seoul National University Hospital between March 1981 and Feb. 1983. Statistical analysis of plain radiographic findingswith the emphasis on the correlation of radiologic index with the hemodynamic data. The results are as follows; 1. The incidence of pulmonary arterial hypertension is much less in atrial septal defect than other two disease groups of left to right shunt. 2. PA/T ratio correlates well with pulmonary arterial pressure(r= 0.674),especially in mild pulmonary hypertension group. No correlation in moderated pulmonary hypertension group insignificant level. 3. PA/T ratio is below 38 in total cases of normal control group and in 32 cases (21.0%) among 152 cases of pulmonary arterial hypertension group. 4. The average PA/T ratio in normal presuure group of left toright shunt is 35.3, which has no significant difference from that of normal control group. 5. The average CTratio of pulmonary arterial hypertension group is 59.0, which is larger than 49.1 of normal control group. The CTratio shows no correlation with the pulmonary arterial pressure in statistically significant level. 6. The higher the pulmonary arterial pressure, the larger the R./Rs value. The Rp/Rs in atrial septal defect is 0.1393 in average, the lowest value in comparison with other two disease groups. 6. The higher th pulmonrya arterial presure, the larger the Rp/Rs value. The Rp/Rs in atrial septal defect is 0.1393 in average, the lowest value in comparison with other two disease groups.

MeSH Terms

Angiocardiography
Arterial Pressure
Cardiac Catheterization
Cardiac Catheters
Heart Defects, Congenital*
Heart Septal Defects, Atrial
Hemodynamics
Hypertension*
Hypertension, Pulmonary
Incidence
Seoul
Vascular Resistance