1.The Mitral Regurgitation in Patent Ductus Arteriosus(PDA).
Journal of the Korean Pediatric Society 1994;37(3):317-321
Mitral regurgitation (MR) was analyzed by Doppler echocardiography, preoperatively and postoperatively, in 59 patients with patent ductus arteriosus (PDA). The ratio of left atrial dimension and aortic root dimension (LAD/AOD) and the maximal velocity of the mitral valve (MVmax) were compared in pre, postop group. The degree of the regurgitation was given to the MR group. In preop MR group (13 of 59,22%), we compared the LAD/AOD by echo and the Qp/Qs by catheterization with non-MR group. The following results were obtained: 1) In preop MR group, about half of them had a grade 1 regurgitation, where as one fourth showed grade 2, remaining one fourth showed grade 3. The later were all changed to grade 2, postoperatively. The whiffle or mild MR (grade 1 or 2) shown preoperatively were slightly reduced in their degrees of regurgitation, but most were not disappeared and persisted to 7th postop day. 2) LAD/AOD and MVmax were significantly reduced at postop state of PDA. 3) In preop MR group (n=13), LAD/AOD was significantly increased. Qp/Qs was higher in MR grade 2 group (n=6). In conclusion, left atrial dilatation could be a factor causing mitral regurgitation in the PDA. The amount of the pulmonary blood flow also related to that. The size of the PDA itself, Rp/Rs and associated cardiac lesions were not related to the regurgitation.
Catheterization
;
Catheters
;
Dilatation
;
Ductus Arteriosus, Patent
;
Echocardiography, Doppler
;
Humans
;
Mitral Valve
;
Mitral Valve Insufficiency*
2.Increased expression of the c-fos and c-myc oncogenes in psoriatic lesions.
Korean Journal of Dermatology 1991;29(3):331-336
The expression of the c-fos and c-myc oncogenes was investigated by dot blot analysis of total RNA extracted from biopsies of normal skin and psoriatic lesions. Densitometric analysis revealed 6.3 fold and 8.6 fold evevation respectively of c-fos and c-myc oncogenes mRNA levels in severe psoriasis compared to normal skin, and 1.5 fold and 1.6 fold elevation respectively of c-fos and c-myc oncogenes mRNA levels in mild psoriasis compared to normal skin. The ratio of c-fos/c-myc transcripts in normal skin and mild psoriasis was constant compared to that in severe psoriasis. The maintenance of a constant ratio of c-fos/c-myc is believed to be closely related to ordered cell growth and the ratio of c-fos/c-myc transcripts in severe psoriasis suggests a disordered pattern of cellular differentiation. We be1ieve that overexpression of these oncogenes is related to the pathogenesis of psoriatic epidermal hyperplasia.
Biopsy
;
Hyperplasia
;
Oncogenes*
;
Psoriasis
;
RNA
;
RNA, Messenger
;
Skin
3.Echocardiographic Evluation of the Natural Processes in Uncomplicated Ventricular Septal Defect.
Hyang Suk YOON ; Du Young CHOI
Journal of the Korean Pediatric Society 1994;37(9):1220-1225
We sudied, with echocardiography as a main tool, the natural processes of 211 patients with uncomplicated ventricular septal defect (VSD) (incidence, 5.33 per 1,000 live births); 146 (69.2%) had a perimenbranous VSD and 32 (15.2%) had a subarterial, 25 (11.8%) had a muscular type of VSD. Cumulative rate of spontaneous closure was 26.1%. In the closure processes, about three-fourth of perimembranous VSD showed a partial closure or tunnel formation by changes of septal leaflet of the tricuspid valve, remaining one-fourth showed a "functional" complete closure. Four of 58 neonates had a partially closed-perimembranous VSD. Rates of infundibular stenosis and Eisenmenger syndrome were 6.6% and 1.4% respectively. Aortic prolapse with insufficiency was detected in 6 patients who were over 6 years of age. Surgical closure was required in 27.5% of all studied patients and in 12% of infants (14 of 177). No natural deaths were observed during the study-periods of recent 3 years. But, 3 of 58 (5.2%) were dead postoperativel (two were early, one late). Doppler color flow mapping is a valuble aid in the diagnosis of VSD and may be on reason for the observed increase in the incidence of VSDs.
Constriction, Pathologic
;
Diagnosis
;
Echocardiography*
;
Eisenmenger Complex
;
Heart Septal Defects, Ventricular*
;
Humans
;
Incidence
;
Infant
;
Infant, Newborn
;
Prolapse
;
Tricuspid Valve
4.Effect of nifedipine in acute episode of postoperative pulmonary hypertension and right heart failure.
Soon Ho CHOI ; Jong Bum CHOI ; Hyang Suk YOON
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(7):736-738
No abstract available.
Heart Failure*
;
Heart*
;
Hypertension, Pulmonary*
;
Nifedipine*
5.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
Journal of the Korean Pediatric Society 1990;33(3):324-334
No abstract available.
Echocardiography, Doppler*
;
Heart Defects, Congenital*
6.CT Findings of Neck Lymphoma:Significance of Central Low Attenuation and Differentiation of Non-Hodgkin's Lymphoma from Hodgkin's Disease.
Yup YOON ; Woo Suk CHOI ; Yu Mee JEONG
Journal of the Korean Radiological Society 1995;33(3):345-349
PURPOSE: Lymphoma is considered when multiple, nonnecrotic lymph nodes are present in the superficial and deep lymphatic chains, especially if they are large and bilateral, on CT scan. It is reported that combined nodal and extranodal presentation of HD is uncommon. However, we found central low density in involved lymph node of NHL, and combined nodal and extranodal disease in HD, not infrequently. The purpose of this study is to ascertain whether our findings may be characteristics of NHL and HD. MATERIALS AND METHODS: CT findings with contrast enhancement were reviewed in 23 patients with untreated neck lymphoma:18 NHL and 5 HD. The followings were analyzed in each case: nodal or extranodal involvement; unilateral or bilateral involvement; presence or absence of central low density with peripheral enhancement in nodal lesion ;infiltration into adjacent structures. Nodal and extranodal lesions were confirmed by pathologic studies. RESULTS: Of 18 patients with NHL, nine cases had nodal disease and the rest had combined nodal and extranodal disease. Lymphadenopathy was bilateral in ten cases and unilateral in eight. Five cases with HD were composed of three combined nodal and extranodal diseases and two nodal diseases. Central low density of involved lymph node was shown in eight cases of 18 NHL and in one case of five HD. CONCLUSION: Central low density with peripheral enhancement was not uncommon in NHL, in contrast to HD. Hence, it is suggested that in case of nodal necrosis, NHL be also considered, besides tuberculous lymphadenitis and metastatic lymphadenopathy. It is not considered that nodal or extranodal disease, and unilateral or bilateral involvement are of high significance in differentiation of NHL from HD.
Hodgkin Disease*
;
Humans
;
Lymph Nodes
;
Lymphatic Diseases
;
Lymphoma
;
Lymphoma, Non-Hodgkin*
;
Neck*
;
Necrosis
;
Tomography, X-Ray Computed
;
Tuberculosis, Lymph Node
7.The Factors Influence upon Job Maintenance of the Mentally Disabled with Job Experience.
Eun Kyung BYUN ; Suk Ja YOON ; Song Sik CHOI
Korean Journal of Occupational Health Nursing 2012;21(1):18-26
PURPOSE: This study tried to explore factors influencing on job maintenance of the mentally disabled who employed before. The subjects of this study were the mentally disabled who participated in community mental health center and social rehabilitation center, there had experienced a job in the past. METHODS: The number of community centers were 27 places, there were located in different region. The number of participants were 221 persons agreed to this study. Data was analyzed by Mean, SD and logistic regression analyzation using SPSS/WIN 14.0. RESULTS: General character such as age was significant factor. Monthly pay and working a day in the midst of job related factors were significant. Moreover, job rehabilitation program satisfaction rate and social support revealed significant factors. CONCLUSION: On the basis of results, Job rehabilitation programs for job maintenance of the mentally disabled should be development and establish mediate strategies to improve social support to them.
Humans
;
Logistic Models
;
Mental Health
;
Mentally Disabled Persons
;
Rehabilitation Centers
;
Rehabilitation, Vocational
8.Identification of Precentral and Postcentral Gyri on the Basis of Central Sulci on MRI.
Seung Jae LIM ; Yup YOON ; Woo Suk CHOI
Journal of the Korean Radiological Society 1994;31(4):577-581
PURPOSE: To evaluate the surface anatomy of the central sulcus(CS), precentral gyrus(PrCG) and postcentral gyrus(PoCG) on the basis of sulci pattern on MR images. MATERIALS AND METHODS: The MR images were obtained in the plane 10 degree angled to the orbitomeatal line. The MR images of 120 subjects(6 months to 79 years) with normal anatomy were analyzed and another four subjects with known space occupying lesions were also reviewed. RESULTS: The identification of gyri was feasible on the axial T1WI from anterior to posterior and from upper to lower images. The STS demonstrated symmetric pattern on both sides in 84 of 120 cases (70%), including two cases of prominent STS pattern. The asymmetric pattern was seen in 36 of 120 cases (30%):14 of 120 cases (12%) on the right and 22 of 120 cases (18%) on the left at 4.5 cm above the level of the splenium of corpus callosum. The PrCG and PoCG and CS were identified well in all cases with the use 'of the sulci pattern. CONCLUSION: The identification of the gyri on the basis of the cerebral sulci pattern on MR images is useful and important when locating the space occupying lesion of the brain.
Brain
;
Corpus Callosum
;
Magnetic Resonance Imaging*
9.A Zosteriform Network of Eccrine Spiradenoma.
Yoon Yae CHOI ; Kyu Suk LEE ; Joon Young SONG
Annals of Dermatology 1992;4(2):139-142
Eccrine spiradenoma is clinically characterized by a solitary, movable, tender nodule occurring most frequently on the ventral surface of the upper body. A striking symptom is paroxysmal pain. Occasionally multiple lesions may be present and may occur in a linear or zosteriform pattern. A 48-year-old female was seen with painful or tender, nomal skin colored, firm nodules distributed in a zosteriform pattern on the right thigh for 10 years, which had been slowly growing. The histopathological features were quite a characteristic of eccrine spiradenoma. We report a rare case of zosteriform network of eccrine spwadenoma occurred on the right thigh.
Female
;
Humans
;
Middle Aged
;
Skin Pigmentation
;
Strikes, Employee
;
Thigh
10.Immunotyping of chlamydia trachomatis by monoclonal antibodies.
Kyoo Suk YOON ; Duk Uhn KIM ; Tae Yul CHOI
Korean Journal of Infectious Diseases 1993;25(1):19-26
No abstract available.
Antibodies, Monoclonal*
;
Chlamydia trachomatis*
;
Chlamydia*