1.Heart Diseases in Korean Children: Past and Present.
Journal of the Korean Pediatric Society 1986;29(11):1-7
No abstract available.
Child*
;
Heart Diseases*
;
Heart*
;
Humans
2.Determination of Pulmonary to Systemic Flow Ratio and Prediction of Pulmonary Arterial Pressure in Children by Pulsed Doppler Echocardiography.
Korean Circulation Journal 1987;17(4):673-687
The purpose of this study is to evaluate pulsed Doppler echocardiographic method (PD) for the measurement of pulmonary to systemic flow ratio (QP/Qs) and pulmonary arterial pressure in children. We studied 32 children with left to right shunt who had undergone cardiac catheterization, 11 children who had heart diseases without shunt and 14 normal children. Velocity time intergral (VTI) was calculated by triangulated meansurement [1/2(maximum blood velocityxejection time)]. Doppler blood flow was calculated from the equation : Doppler blood flow=VTIxcross sectional areaxheart rate. The following Doppler time intervals and ratio of intervals were also measured : preejection period(PEP), acceleration time(AT), ejection time (ET), PEP/AT, PEP/ET and AT/ET. Qp/Qs measured by PD was 1.09+/-0.15 (mean+/-SD) in children with no shunt and normal children. A high correlation was found between Fick and Doppler-derived Qp/Qs in children with left to right shunt (r=0.87). All the children with Qp/Qs less than 1.5 showed no significant discrepancy between two methods. The best correlation with pulmonary arterial pressure was achieved by the PEP/AT (r=0.84 vs systolic pressure). Sensitivity and specificity of PEP/AT for predicting pulmonary arterial hypertension were 79% and 95%, respecitively. In conclusion, it is thought that determination of Qp/Qs and prediction of pulmonary arterial pressure in children by PD is a useful, noninvasive method and triangulated measurement may be used as a simple and easy method for the measurement of Qp/Qs.
Acceleration
;
Arterial Pressure*
;
Cardiac Catheterization
;
Cardiac Catheters
;
Child*
;
Echocardiography
;
Echocardiography, Doppler, Pulsed*
;
Heart Diseases
;
Humans
;
Hypertension
;
Sensitivity and Specificity
3.Percutaneous Balloon Angioplasty in Children with Pulmonary Valvular Stenosis.
Journal of the Korean Pediatric Society 1987;30(12):1355-1362
No abstract available.
Angioplasty, Balloon*
;
Child*
;
Constriction, Pathologic*
;
Humans
4.Percutaneous Balloon Angioplasty in Patients with Congenital Aortic Valvular Stenosis.
Journal of the Korean Pediatric Society 1988;31(7):817-821
No abstract available.
Angioplasty, Balloon*
;
Constriction, Pathologic*
;
Humans
5.Absence of Inferior Vena Cava.
Journal of the Korean Pediatric Society 1983;26(8):760-769
No abstract available.
Vena Cava, Inferior*
6.Bone Marrow Cell Culture(GM-CFU) in Anaplastic Anemia of Children.
Journal of the Korean Pediatric Society 1985;28(9):888-898
No abstract available.
Anemia*
;
Bone Marrow Cells*
;
Bone Marrow*
;
Child*
;
Humans
7.Left Ventricular Function in Chronic Severe Anemia by Echocardiographic Study.
Journal of the Korean Pediatric Society 1985;28(9):880-887
No abstract available.
Anemia*
;
Echocardiography*
;
Ventricular Function, Left*
8.A Study on the Systolic Time Intervals in Normal Children.
Yong Soo YOON ; Chang Yee HONG
Korean Circulation Journal 1982;12(1):77-88
The systolic time intervals were measured on 388 normal chidren, ranging from 8 months to 15years of age by using simultaneous recordings of the electrocardiogram, phonocardiogram and carotid or axillary arterial pulse. The statistical methods were applied to study the influence of age, sex and heart rate(HR) on these intervals. The results were as follows. 1. The regression equation of QS2was -1. 60HR+480+/-16 msec in males and -1.68HR+492+/-15 msec in females, respectively. 2. The regression equation of LVET was -1. 13 HR+359+/-10 msec in males and -1.21 HR+369+/-13 msec in females, respectively. 3. The regression equation of PEP was -0.58 HR+133+/-9 msec in males and -0.58 HR+128+/-9 msec in females, respectively. 4. The PEP/IVET ratio was 0.29+/-0.04 in males and 0.30+/-0.06 in females. 5. There was no sex difference in various systolic time intervals, and age had a slight influence but it was negligible for clinical use. 6. According to the regression equations of QS2, LVET, and PEP to the heart rate, QS2, and LVET were found to be more inversely correlated with heart rate than PEP.
Child*
;
Electrocardiography
;
Female
;
Heart
;
Heart Rate
;
Humans
;
Male
;
Sex Characteristics
;
Systole*
9.A Clinical Study on Cardiofacial Syndrome (Asymmetric Cry Syndrome).
Journal of the Korean Pediatric Society 1985;28(7):637-641
No abstract available.
10.Hodgkin's Disease in Chidren.
Soo Jong HONG ; Hyo Seop AHN ; Chang Yee HONG
Journal of the Korean Pediatric Society 1986;29(12):98-75
No abstract available.
Hodgkin Disease*