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Original Article
Exercise Tolerance Tests in Patients with Tetralogy of Fallot Repaired Earlier : Correlation with 2-Dimensional Echocardiography and Cardiac Catheterization
Jin Yong Lee, Jun Hee Sul, Sung Kyu Lee, Dong Shik Chin, Bum Koo Cho, Soo Kwan Hwang, Dong Soo Yeoun
Clin Exp Pediatr. 1992;35(2):157-167.   Published online February 15, 1992
Exercise tolerance tests were performed using treadmill in 21 patients with tetralogy of Fallot (TOF) repaired earlier (4.8 years in mean) and 10 subjects with small ventricular septal defect or normal heart, aged 8-16 years. Pre and postexercise echocardiography and cardiac catheterization were also performed and the hemodynamic data were compared with exercise parameters. The following results were obtained. 1)...
Clinical observation on tuberous sclerosis.
Yong Seung Hwang, Yong Soo Yun
Clin Exp Pediatr. 1991;34(7):992-998.   Published online July 31, 1991
Thirty one cases of tuberous sclerosis were seen at the Dept, of Pediatrics, Seoul National University Children’s Hospital. Thirteen cases (41.9%) were diagnosed before 1 year of age and the sex ratio was 2.9:1 with male prefonderance The clinical epileptic manifestations were seen in 28 patients (90.3%), of whom generalized tonic clonic seizures were associated in 12 cases (42.8%) and infantile spasm in 9 cases...
Pulsed doppler echocardiographic analysis of pulmonary venous flow in congenital heart diseases with left-to-right shunt.
Kye Hwan Seol, Chang Sung Son, Joo Won Lee, Soon Kyum Kim, Young Chang Tockgo
Clin Exp Pediatr. 1991;34(7):934-939.   Published online July 31, 1991
Pulsed Doppler echocardiography was performed to evaluate the flow velocity pattern of the pulmonary vein in 28 patients with congenital heart diseases which comprised of 8 atrial septal defect (ASD), 14 ventricular septal defect (VSD) and 6 patent ductus arteriosus (PDA). 20 normal children served as controls. The objective of this study was to ascertain that pulmonary venous flow velocity is dependent on the...
The value of 2-D echocardiography in diagnosis of CHD.
Sang Kyung Yun, Young Woon Baek, Hyun Ki Jung
Clin Exp Pediatr. 1991;34(5):662-667.   Published online May 31, 1991
Cardiac catheterization, cineangiography and surgical analysis of 220 cases of congenital heart disease diagnosed by 2-D echocardiography was made, retrospectively from mar. 1985 to sep. 1989, who were admitted to the department of pediatrics Kosin Medical College Hospital. The results were analysed as follows; 1) 22 cases of 23 were correctly diagnosed in ASD, sensitivity and specificity of subxiphoid 2-D echocardiogram were 95.7% and 99.6% respectively. 2) 109...
Echocardiographic Evaluation of Sequential Change of Cardiac Function in Normal Neonates.
Ji In Park, Chul Ha Kim, Byoung Hoon Yoo
Clin Exp Pediatr. 1990;33(11):1533-1539.   Published online November 30, 1990
Echocardigraphy was done on the first and the second day of life in 23 normal full term newborns to evaluate the sequential change of cardiac function of the normal neonates. The results were as follows. 1) On the first day of life, all of the measurements of diastolic filling except peak A velocity were significantly different when the right and left ventricle were compared. For...
The Diameter of Coronary Arteries in Infants and Children Without Heart Disease.
Young Mi Hong
Clin Exp Pediatr. 1990;33(10):1353-1361.   Published online October 31, 1990
Two dimensional echocardiographic examinations of the proximal left and right coronary artery were performed in 140 infants and children without heart disease. Eighty boys and 60 girls were studied whose ages ranged from newborn to 15 years old. The diameter of the proximal left cornonary artery was 0.8 mm in newborn and 1.9 mm in teenagers. The diameter of the proximal right coronary artery...
The Estimation of Pressure Gradients of the various Cardiac Chambers Using Conbtinuos-Wave Doppler Echocardiography in Congenital Heart Disease.
Du Young Choi, Yeon Sim Kim, Hyung Suk Yoon
Clin Exp Pediatr. 1990;33(3):324-331.   Published online March 31, 1990
Continuous-Wave doppler echocardiography was used to estimate the Pressure gradient in 55 children with congenital heart disease. To test whether the Doppler method would be useful for evaluation and management of pediatric patients with ventricular septal defect (VSD)), pulmonic stenosis (PS), tricuspid regurgitation (TR), we recorded the maximal velocity (Vmax) of transseptal, pulmonary and regurgitant tricuspid jet flows and calculated the pressure gradients used by...
The Findings of 2D and M-mode Echocardiography in Young Insulin-Dependent Diabetes Mellitus.
Byoung Rei Cho, Jae Wook Ko, Young Jin Hong, Don Hee Ahn, Keun Chan Sohn
Clin Exp Pediatr. 1990;33(1):88-93.   Published online January 31, 1990
Twenty-one children and young adults with Insulin-dependent diatetes mellitus and 23 control underwent 2D and M-mode echocardiography. Following results were obtained: 1) LVESD, LVEDD, EF, FS, LAD/AOD ratio, Dm of IVS and Dm of PLVWT were not significantly different in diabetics compared to control subjects. 2) In IDDM PEP was slightly increased and LVET was slightly decreased, but there was not statistical significance between the two groups. But...
Studies of false tendon in left ventricle by echocardiography.
Un Jun Hyoung, Jin Yong Lee, Jun Hee Sul, Sung Kyu Lee, Dong Shik Chin
Clin Exp Pediatr. 1989;32(11):1503-1509.   Published online November 30, 1989
The False tendon is an anomalous chordae tendinae which attaches to abnormal sites in left ventricle. We studied the incidence of false tendon and relationship of the false tendon, functional murmur and arrhythmias using echocardiography. The results were as follow; 1) We found false tendons in 42 cases of total 307 cases, 13.6% 2) In group I (the patients who have congenital heart disease), the incidence of...
Continous Wave Dopple Echocardiographic Prediction of Pulmonary Arterial Hupertension in Congenital Heart Disease.
Jung Suk Lee, Mi Jung Ko, Yeon Gyun Oh, Hyang Suk Yoon
Clin Exp Pediatr. 1989;32(7):951-957.   Published online July 31, 1989
This study determines the accuracy of Doppler echocardiography for predicting the presence of pulmonary artery hypertension from Doppler pulmonary artery velocity traces. The patient group included 26 patients with congenital cardiac disease who had undergone catheterization. Doppler measurements of acceleration time(AT), right ventricular ejection time (RVET), and AT/ RVET were compared with pulmonary artery pressure (PAP) and mean pulmonary artery pressure (m-PAP). We devided the patients in...
Comparisons of the Ratio of Pulmonary to Systemic Blood Flow(Qp/Qs) Determined by Non-invasive Doppler Echocardiography and Radionuclide-Angiocardiography in Congenital Heart Diseases.
Jung Suk Lee, Chul Wo Park, Hyang Suk Yoon
Clin Exp Pediatr. 1989;32(7):943-950.   Published online July 31, 1989
This study was desinged to assess the accuracy of the ratio of pulmonary to systemic blood flow (Qp/Qs) measured by non-invasive continuous wave (CW) Doppler echocardiography comparing with other non-invasive Radionu- clide Angiocardiography (RNA) and invasive Fick method. Seventeen children with congenital heart disease, aged 14 months to 15 years, admitted for cardiac opention to this hospital, were studied. High correlations were found between the...
Noninvasive Estimation of Pulmonary Artery Pressure with Doppler Echocardiogrphy.
Ji Yean Lee, Soon Hak Kwon, Sang Bum Lee, Doo Hong Ahn
Clin Exp Pediatr. 1989;32(1):20-26.   Published online January 31, 1989
This study determined the accuracy of Doppler echocardiography for predicting the pulmonary artery pressure from right ventricular systolic time intervals in 25 pediatric patients with various congenital cardiovascular diseases undergoing cardiac catheterization. Either estimated pulmonary artery systolic pressure (PASP) using Burstin nomogram and pulmo- nary artery diastolic pressure (PADP) using Riggs equation (PADP= 151· RPEP / RVET ·20.7) correlated well with the pressures at...
Evaluation of Pulmonary and Systemic Blood Flow by Doppler Echocardiography in Pediatric Congenital Heart Disease.
Jae Hong Park, Chun Dong Kim, Jin Gon Jun
Clin Exp Pediatr. 1988;31(8):1014-1020.   Published online August 31, 1988
This study was designed to assess the accuracy of pulmonary (Qp) and systemic blood flow (Qs) and the ratio of pulmonary to systemic blood flow (Qp/Qs) measured by non-invasive range-gated pulsed Doppler echocardiography. Thirty five children with congenital heart disease, aged 4 months to 15 years, admitted for cardiac operation to this hospital, were studied. Cardiac outputs were measured by 2-dimensional range-gated pulsed Doppler...
Noninvasive Estimation of Systemic and Pulmonary Blood flow and the Ratio of Pulmonary to Systemic flow by Two-Dimensional Doppler Echocardigraphy.
Woo Tack Kim, Ki Ho Kim, Haeng Mi Kim, Snag Bum Lee
Clin Exp Pediatr. 1988;31(7):881-891.   Published online July 31, 1988
This study was designed to assess the accuracy and problems of noninvasively measuring right and left cardiac output at various sampling sites by range gated pursed Doppler echocardiography. High correlations were found between Fick-and Doppler-derived measurements of systemic and pulmonary flow as well as the pulmonary to systemic flow ratio in 21 patients undergoing cardiac catheterization (systemic flow [n=21] r=0.81; plulmonary flow [n=29], r=0.78;Qp/Qs...
Estimation of Pressure Difference Between Right and Left Ventricle in Ventricular Septal Defect with Doppler Echocardiography.
Myung Chul Cho, Byung Kiu Park, Woo Sung Park, Chung Il Noh, Jung Yun Choi, Yong Soo Yoon, Chang Yee Hong
Clin Exp Pediatr. 1988;31(3):315-321.   Published online March 31, 1988
We compared the interventricular pressure gradient with Doppler echocardiography and that measured during cardiac catheterization in 48 children who were admitted for diagnostic cardiac catheterization and angiography to the ward of Pediatrics, Seoul National University Children’s Hospital during the period of 7 months from June to December 1986. Among 48 cases of simple ventricular septal defect, 21 cases were supracristal (type I), and 27...
Two-Dimensional Echocardiographic Diagnosis of Cornary Aneurysms in Children with the Mucocutaneous Lymphnode Syndrome.
Jun Hee Sul, Sung Kyu Lee, Dong Shik Chin
Clin Exp Pediatr. 1987;30(12):1363-1367.   Published online December 31, 1987
The two dimensional echocardiographic technique for detecting coronary artery aneurysms was performed in 62 cases with mucocutaneous lymphnode syndrome. Of 62 patients with MCLS, coronary artery aneurysms were detected as large echo-free space in 8 patients. It was found that coronary artery aneurysms usually developed during the acute stage of the illness, and regressed gradually thereafter. Most aneurysms disappeared in 6 months. Therefore, Echocardiography is...
Comparison of Pulmonary and Systemic Blood Flow and Ratio of Pulmonary Blood Flow to Systemic Blood Flow Obtained by Pulsed Wave Doppler Echocardiography and Fick Method.
Sung Gy Jin, Myeng Hee Cha, Kyeng Sook Cho, Doo Sung Moon
Clin Exp Pediatr. 1987;30(9):982-989.   Published online September 30, 1987
This study was designed to assess the accuracy of pulsed wave Doppler echocardiographic measurement of pulmonary blood flow(Qp), systemic blood flow(Qs) and the ratio of pulmonary blood flow to systemic blood flow(Qp/Qs) to compare with Fick method. Seventeen patients with ventricular septal defect, aged 10 months to 14 years, participated for this study, and Doppler echocardiograghic examinations using the Aloka SSD-880 were performed. Two dimensional...
Measurements of Blood Flow in the Ascending and Descending Aorta by Two-Dimensional doppler Echocardiography in School children.
Soon Ung Kang
Clin Exp Pediatr. 1987;30(9):972-981.   Published online September 30, 1987
Cardiac output measurements are among the most important physiologic indices of cardiovascular function. Flow computation is one of the major capabilities of Doppler echocardiography. The basic principle is that the average velocity of blood flow multiplied by the area through which the blood passes yields flow volume. The normal range of diameters and velocities in the ascending and descending aorta were established in 76...
Noninvasive Assessment of Pressure Gradient by Quantitative Two-Dimensional Echocardiographic Doppler Studies in Pediatric Cardiovascular Diseases.
Wang Bok Lee, Hye Li Chung, Dong Jin Lee, Sang Bum Lee
Clin Exp Pediatr. 1987;30(5):518-526.   Published online May 31, 1987
In this study we assessed the predictive accuracy of continuous wave Doppler echocardiography for noninvasive measurement of pressure gradients in various pediatric cardiovascular diseases. We studied 32 children, ages 50 days to 12 years, prior to cardiac catheterization or after palliative operation and compared Doppler-estimated gradients and gradients obtained at catheterization or operation. The ultrasound beam was aligned as much as possible to...
Diagnosis of Patent Ductus Arteriosus by Pulsed Doppler Echocardiography; Sensitivity and Specificity.
In Youl Ma, Jin Gon Jun, Jeong Ok Hah
Clin Exp Pediatr. 1987;30(3):275-280.   Published online March 31, 1987
For the determination of the sensitivity and specificity of pulsed Doppler echocardiographic (PDE) diagnosis of patent ductus arteriosus (PDA), we evaluated 108 children with congenital heart disease by suprasternal and parasternal approaches. PDA was diagnosed when continuous turbulent flow(CTF) or PDA jet flow was recorded in main pulmonary artery (MPA) by parasternal approach and when reverse diastolic flow(RDF) was detected in descending aorta and no...
Clicical Syudy on Cardiac Involvement in Rheumatic Heart Disease in Children.
Sung Ho Cha, Myeong Yeon lee, Jong Woo Bae, Byeong Soo Cho, Chang Il Ahn
Clin Exp Pediatr. 1986;29(11):1215-1224.   Published online November 30, 1986
A clinical study was carried out to obtained the cardiac manifestations and echocardiographic findings from 25 cases of rheumatic carditis, those were undertaken echocardiography among 52 cases of rheumatic carditis from January 1973 to June 1985, admitted to Pediatric department of Kyung Hee university hospital. And compared with age matched 14 cases of control group. The following results were obtained: 1)...
Electorcardiographic, M-mode and Two Dimensional Echocardiographic Findings in Kawasaki Syndrome.
In Hwa Lee, Byoung Soo Cho, Sung Ho Cha, Chang Il Ahn
Clin Exp Pediatr. 1986;29(11):1201-1214.   Published online November 30, 1986
This study was undertaken to evaluate the significance of the electrocardiography, M-mode and two dimensional echocardiography and to determine the extent of cardiac involvement in Kawasaki syndrome. The studies of laboratory tests, chest X-ray, electrocardiography, M-mode and two dimensional echocardiography were carried out in 30 subjects with Kawasaki syndrome admitted at K.H.U.H. from 1 st Jan. 1984 to 31th...
The Criteria for Surgical Correction of Ventricular Septal Defect by Non-invasive Diagnostic Methods.
Chuhl Joo Lyu, Jun Hee Sul, Sung Kyu Lee, Dong Shik Chin
Clin Exp Pediatr. 1986;29(8):830-835.   Published online August 31, 1986
In selected cases, early corrective surgery is indicated in the management of infants with moderate or large ventricular septal defects. The risks of any surgical procedure in infancy are acknowledged to be great and should be avoided if possible. However, these surgical risks are justified when the patients have intractable congestive heart failure, marked growth retardation, recurrent prolonged lower respiratory...
Diagnostric Significance of Subxiphoid Two-Dimensional Echocardiography in Congenital Heart Desease of Chlidred.
Kwang Do Lee, Cheol Woo Ko, Hong Bae Kim, Sang Bum Lee, Doo Hong Ahn
Clin Exp Pediatr. 1986;29(3):296-304.   Published online March 31, 1986
Subxiphoid, two-dimensional echocardiographic examinations were performed and interpreted before diagnostic cardiac catheterization on 138 patients with suspected congenital heart disease who were from 2 months to 15 years old. Cardiac catheterization and cineangiographic examination were performed in all patients and surgery in 99 patients and comparisions were made with each other. Eighteen of nineteen patients with an atrial...
A Study on Echocardiographic Findings of Rheumatic Carditis.
Yong Sub Kim, Chan Yung Kim
Clin Exp Pediatr. 1985;28(4):345-342.   Published online April 30, 1985
A clinical study was done about echocardiographic findings of 31 cases of rheumatic carditis among 56 cases of rheumatic fever admitted to Pediatric Department of Busan National University Hospital from July, 1982 for 2 years. The following results were obtained: 1)The incidence of rheumatic carditis was 55.4% among rheumatic fever and the peak age was 12~13 years old and the...
Echocardiographic Evaluation of Pulmonary Arterial Hypertension in Pediatric Congenital Heart disease.
Myoung Sung Moon, In Hee Park, Heung Jae Lee, Hahng Lee, Keun Soo Lee
Clin Exp Pediatr. 1984;27(10):971-981.   Published online October 31, 1984
To assess the validity of Echocardiographic criteria for pulmonary arterial hypertension we studied pulmonary valve motion in 75 congenital heart disease children. 75 patients were divided into two groups, A and B. The group A consisted of 39 patients who had normal pulmonary arterial pressure, group B consisted of 36 patients who had pulmonary arterial hypertension(pulmmonary artery mean pressure more...
Case Report
A Case of Isolated Congenital Tricuspid Insufficiency.
Dong Hyun Choo, Dong Kyoon Kim, Jung Yeon Choi, Yong Soo Yoon, Chang Yee Hong
Clin Exp Pediatr. 1984;27(8):814-819.   Published online August 31, 1984
Isolated congenital tricuspid insufficiency is a rare anomaly and may be caused by abnormal chordae tendinae, papillary muscle, or valve leaflets. The cause of these lesions is generally ascribed to incomplete undermining of primitive endocardial cushion by sinusoidal space, which differentiate the cushion into the various valvular structures. Carvallo’s sign, most characteristic clinical sign in tricuspid insufficiency, is augumentation of systolic...
Original Article
Clinical and Echocardiographic Studies of Ventricular Septal Defect and Patent Ductus Arteriosus.
Yaung Sook Choi
Clin Exp Pediatr. 1984;27(4):335-342.   Published online April 30, 1984
Two dimensional echocardiography was performed on 36 cases of ventricular septal defect and 29 of patent ductus arteriosus in children under 15 years old who were visited to the pediatric and chest surgery department of Busan national university hospital from January 1982 to March 1983. These were observed on clinical features, chest X-ray findings, electrocardiographic findings and echocardiographic datas were...
Case Report
A Case of Mucocutaneous Lymph Node Syndrome complicated by Coronary Aneurysm.
Phil Joun Song, Chung Hye Chu, Kyoo Hwan Rhee, Yong Mook Choi, Chang Il Ahn
Clin Exp Pediatr. 1984;27(2):197-201.   Published online February 28, 1984
We have recently experienced a case of mucocutaneous lymph node syndrome complicated by coronary aneurysm. He was suspected by two-dimensional echocardiographic examination and confirmed by the angiography of aorta. A brief review of related literatures was made.
2 Cases of Congenital Asplenia Syndrome.
Hyo Sup Joo, Chung Hye Chu, Byoung Soo Cho, Kyoo Hwan Rhee, Sa Jun Chung, Chang Il Ahn
Clin Exp Pediatr. 1984;27(2):191-196.   Published online February 28, 1984
The asplenia syndrome is rare, characterized by congenital abscence of spleen, cardiovascular anomalies and other malformations or malpositions such as total or partial situs inversus, symmetrical lobulation of the liver and/or lung. Associated multiple complex cardiovascular anomalies include common atrioventricular canal, pulmonary stenosis or atresia, anomalous venous drainage and transposition of great vessels. Two-dimensional echocardiography allows the accurate non invasive...
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