1.Statistical Study on Congenital Heart Disease.
Jun Ah JEONG ; Young Mi KIM ; Ho Seok LEE ; Tae Chan KWON ; Chin Moo KANG
Korean Circulation Journal 1989;19(1):89-96
A Statistical observations were done on 587 pediatric patients who were diagnosed as having congenital heart disease by cardiac catheterization angiography and operation at Dong San Hospital Keimyung University, during the period of January 1982 to june 1987. The results were as follows 1) Out of 587 patients, 317 cases were male and 276 cases were female. There were female preponderance in atrial septal defect and patent ductus arteriosus, whille in male tetralogy of Fallot, pulmonary stenosis, and ventricular septal defect. 2) The incidence of congenital heart disease were as folliws;ventricular septal defect 35.7% tetralogy of Fallot 17.5%, patient ductus arteriousus 13.9%, arterial septal defect 7.5% and pulmonary stenosis 2.9%. 3) Most of the patients were visited hospital for the first time between the age of 2 and 10 years. 4) Assosiated anomalies of major congenital heart disease were as follows:the most commonly associated anomaly in ventricular septal defect were pulmonary stenosis and patent ductus arteriosus. Pulmonary stenosis was frequently associated with atrial septal defect. Right sided aortic arch and pentalogy were assosiated with tetralogy of Fallot. The mitral regurgitation was associated with patent ductus arteriosus mostly. 5) The overall surgical mortality was 6.8%. The mortality was high in tetralogy of Fallot(16.1%), transposition of great vessels(28.5%).
Angiography
;
Aorta, Thoracic
;
Cardiac Catheterization
;
Cardiac Catheters
;
Ductus Arteriosus, Patent
;
Female
;
Heart Defects, Congenital*
;
Heart Septal Defects, Atrial
;
Heart Septal Defects, Ventricular
;
Humans
;
Incidence
;
Male
;
Mitral Valve Insufficiency
;
Mortality
;
Pulmonary Valve Stenosis
;
Statistics as Topic*
;
Tetralogy of Fallot
2.Clinical Characteristics and Patient's Satisfaction in Pseudophakic Negative Dysphotopsia.
Jeong Ah KIM ; Ah Nul HA ; Ji Won KWON ; Won Ryang WEE ; Young Keun HAN
Journal of the Korean Ophthalmological Society 2014;55(5):669-678
PURPOSE: To investigate the clinical characteristics of patients with pseudophakic negative dysphotopsia after cataract surgery and to analyze the risk factors of pseudophakic negative dysphotopsia as well as the postoperative effects on patient's satisfaction. METHODS: This study included 1,020 eyes of 690 patients who underwent phacoemulsification and posterior chamber lens insertion between January 2010 and March 2012. Retrospective chart review was conducted to evaluate the prevalence of negative dysphotopsia according to the site of clear corneal incision during cataract surgery and the type of implanted intraocular lens (IOL). The clinical outcome of Neodymium:yttrium-aluminium-garnet (Nd:YAG) laser anterior capsulotomy in negative dysphotopsia patients was evaluated. Using a telephone survey, patients were asked to subjectively answer 18 questions regarding satisfaction after cataract surgery, the severity of visual symptoms and the effect of negative dysphotopsia in their daily life. RESULTS: Negative dysphotopsia developed in patients who underwent uneventful cataract surgery and successful implantation of IOL in the bag. The patients' vision was corrected up to 20/20 (0.00 log MAR) and HVF P60-4 showed no abnormality in their visual field. There were significantly more patients with the SN60WF IOL who reported negative dysphotopsia but no other factors associated with the prevalence of negative dysphotopsia. During the telephone survey, patients complained of difficulties in their daily life related to the negative dysphotopsia symptoms and reported decreased satisfaction after cataract surgery. CONCLUSIONS: Although negative dysphotopsia can decrease the patient's satisfaction after cataract surgery, the genesis of negative dysphotopsia and an objective method to test for negative dysphotopsia is necessary. Therefore, a prospective large study should be conducted to evaluate the cause and treatment of negative dysphotopsia.
Cataract
;
Humans
;
Lenses, Intraocular
;
Phacoemulsification
;
Prevalence
;
Pseudophakia
;
Retrospective Studies
;
Risk Factors
;
Telephone
;
Visual Fields
3.Clinical Characteristics and Patient's Satisfaction in Pseudophakic Negative Dysphotopsia.
Jeong Ah KIM ; Ah Nul HA ; Ji Won KWON ; Won Ryang WEE ; Young Keun HAN
Journal of the Korean Ophthalmological Society 2014;55(5):669-678
PURPOSE: To investigate the clinical characteristics of patients with pseudophakic negative dysphotopsia after cataract surgery and to analyze the risk factors of pseudophakic negative dysphotopsia as well as the postoperative effects on patient's satisfaction. METHODS: This study included 1,020 eyes of 690 patients who underwent phacoemulsification and posterior chamber lens insertion between January 2010 and March 2012. Retrospective chart review was conducted to evaluate the prevalence of negative dysphotopsia according to the site of clear corneal incision during cataract surgery and the type of implanted intraocular lens (IOL). The clinical outcome of Neodymium:yttrium-aluminium-garnet (Nd:YAG) laser anterior capsulotomy in negative dysphotopsia patients was evaluated. Using a telephone survey, patients were asked to subjectively answer 18 questions regarding satisfaction after cataract surgery, the severity of visual symptoms and the effect of negative dysphotopsia in their daily life. RESULTS: Negative dysphotopsia developed in patients who underwent uneventful cataract surgery and successful implantation of IOL in the bag. The patients' vision was corrected up to 20/20 (0.00 log MAR) and HVF P60-4 showed no abnormality in their visual field. There were significantly more patients with the SN60WF IOL who reported negative dysphotopsia but no other factors associated with the prevalence of negative dysphotopsia. During the telephone survey, patients complained of difficulties in their daily life related to the negative dysphotopsia symptoms and reported decreased satisfaction after cataract surgery. CONCLUSIONS: Although negative dysphotopsia can decrease the patient's satisfaction after cataract surgery, the genesis of negative dysphotopsia and an objective method to test for negative dysphotopsia is necessary. Therefore, a prospective large study should be conducted to evaluate the cause and treatment of negative dysphotopsia.
Cataract
;
Humans
;
Lenses, Intraocular
;
Phacoemulsification
;
Prevalence
;
Pseudophakia
;
Retrospective Studies
;
Risk Factors
;
Telephone
;
Visual Fields
4.Importance of Bone Marrow and Soft Tissue Edema to Improve the Diagnostic Accuracy of Lumbosacral MRI for Transverse Process Fractures and Sacral Fractures
Ji Ah KWON ; Ji Young HWANG ; Min Jeong KIM ; Hye Young KWON ; Da Hoon KIM
Journal of the Korean Radiological Society 2018;78(2):107-114
PURPOSE:
To evaluate the magnetic resonance imaging (MRI) findings to improve the diagnostic accuracy for transverse process fractures and sacral fractures.
MATERIALS AND METHODS:
The lumbosacral MRI scans of 214 patients (mean age, 60 years; male-to-female ratio, 85:129), who had spine trauma between January and November 2015 were included. Two radiologists evaluated the presence, number, level, and anatomic site of the fractures on MRI with computed tomography as reference standard. Imaging findings were described as cortical disruption, marrow edema, or soft tissue edema on T1-, T2-, and fat-suppressed T2-weighted images. A statistical analysis was performed to compare the diagnostic accuracy of the MRI pulse sequences for the transverse process and sacral fractures.
RESULTS:
Of 168 fractures, 26 (15.5%) and 13 (4.9%) were in the transverse processes and sacra, respectively. A paravertebral soft tissue edema occurred in the transverse process fractures (80.8%) and presacral soft tissue and marrow edemas occurred in the sacral fractures (46.1%). The sensitivity for the transverse process fractures was 88% on the T2-weighted image. It was 92% on fat-suppressed T2- and T1-weighted images for sacral fractures.
CONCLUSION
Bone marrow and soft tissue edemas on the MRI could potentially improve the diagnostic accuracy of an MRI for fractures in the transverse process and sacrum.
5.Evaluation of the Technicon Immuno I Immunoassay System.
Young Ah KIM ; Jae Gyun LIM ; Hwan Sub LIM ; Jeong Ho KIM ; Jung Woon LEE ; Oh Hun KWON
Korean Journal of Clinical Pathology 1998;18(4):534-539
BACKGROUND: The Technicon Immuno I utilizes various enzymatic kinetic analysis with colorimetric detection and magnetic particles. We evaluated this fully automated random-access immunoassay system which can perform latex agglutination and magnetic-separation sandwich/ competitive immunoassay. METHODS: We evaluated the assay precision, lower limits of detection, linearity, recovery, sample to sample carry-over, analytical interferences and comparison with other various methods for the following analytes: thyroxine (T4), thyroid stimulating hormone (TSH), free thyroxine (FT4), luteinizing hormone (LH), follicular stimulating hormone (FSH), prostate specific antigen (PSA), alpha-fetoprotein (AFP), carcino-embryonic antigen (CEA), CA 19-9, and digoxin. RESULTS: Satisfactory results were obtained for within-run and between-day precision in most analytes. Lower limits of detection were slightly higher than claimed by the manufacturer. The linearity was acceptable, but there were proportional errors for CEA and FT4. The recovery rates were also good except for PSA. Sample to sample carry-over was not detected. No significant analytical interference was caused by hemoglobin (up to 2,000 mg/L), lipid (up to 85 mmol/L) and bilirubin (up to 325 mol/L) except for digoxin, FT4 and PSA. The Technicon Immuno I assay correlated well with the comparison methods in most analytes, but the proportional biases were found for PSA and LH. CONCLUSIONS: The Technicon Immuno I is a satisfactory system for clinical use in most cases but more study would be requried for FT4. Especially, this system can replace the radioimmunoassay for FSH and LH.
Agglutination
;
alpha-Fetoproteins
;
Bias (Epidemiology)
;
Bilirubin
;
Digoxin
;
Immunoassay*
;
Latex
;
Limit of Detection
;
Luteinizing Hormone
;
Prostate-Specific Antigen
;
Radioimmunoassay
;
Thyrotropin
;
Thyroxine
6.Direct Measurement of High-Density Lipoprotein Cholesterol Evaluated.
Young Ah KIM ; Hwan Sub LIM ; Jung Woon LEE ; Jeong Ho KIM ; Oh Hun KWON
Korean Journal of Clinical Pathology 1998;18(4):529-533
BACKGROUND: Serum high density lipoprotein (HDL)-cholesterol level is used as an assessment of the risk of coronary heart disease. In this study, we evaluated direct measurement of HDL- cholesterol in serum with polyethylene-modified enzymes and sulfated alpha-cyclodextrin. METHODS: We evaluated the precision, the lower limit of detection, the recovery rate, the linearity, the interference for hemoglobin and the comparision with the result of HDL-cholesterol measured by selective precipitation method. We also studied the specificity of this direct method for very low density lipoprotein (VLDL) and low density lipoprotein (LDL). RESULTS: The total imprecision was 3.8% (low), 3.5% (middle), 3.2% (high). The lower limit of detection was 0 mg/L. The recovery rate was satisfactory. The linearity was also (r2=0.99). This method showed a good correlation (r2=0.97) with the selective precipitation method in HDL- cholesterol measurement. VLDL-cholesterol (up to 300 mg/L) increased HDL-cholesterol only less than 3% but increased VLDL-cholesterol to 400 mg/L, more than 750 mg/L caused 5% and 15% of overestimation of HDL-cholesterol, respectively. LDL-cholesterol (142-1,073 mg/L) increased or decreased HDL-cholesterol by some degree (about 15%). Hemoglobin (up to 3,000 mg/L) did not influence this assay. CONCLUSIONS: The direct measurement of HDL-cholesterol is satisfactory method in HDL- cholesterol measurement in good analytical performance and may be anticipated to reduce workload of laboratory because the sample pretreatment is not necessary.
Cholesterol*
;
Coronary Disease
;
Limit of Detection
;
Lipoproteins*
;
Sensitivity and Specificity
7.A Case of Primary Focal Segmental Glomerulosclerosis in an Adolescent Patient with Type 1 Diabetes.
Seung Hyon BAEK ; Ah Reum KWON ; Hyeon Joo JEONG ; Min Ju KIM ; Hyun Wook CHAE ; Ho Seong KIM ; Duk Hee KIM
Journal of Korean Society of Pediatric Endocrinology 2010;15(3):203-206
Diabetic nephropathy is a common and serious complication in diabetic patients. Renal diseases other than diabetic nephropathy (non-diabetic nephropathy) can occur in diabetic patients with nephrosis. The presence of non-diabetic nephropathy is noted in type 2 diabetes patients, but no data exists for type 1 diabetes. In this report we describe the case of a 15-year-old girl with type 1 diabetes mellitus, who presented with an acute elevation of urinary microalbumin excretion, general edema, and liver enzyme elevation. She had shown microalbuminuria about 3 years earlier, as well as an uncontrolled hemoglobin A1c level, but she had no diabetic retinopathy and neuropathy. A renal biopsy was conducted, and she was diagnosed with primary focal segmental glomerulosclerosis. She was treated with corticosteroids and an angiotensin converting enzyme inhibitor.
Adolescent
;
Adrenal Cortex Hormones
;
Biopsy
;
Diabetes Mellitus, Type 1
;
Diabetic Nephropathies
;
Diabetic Retinopathy
;
Edema
;
Glomerulosclerosis, Focal Segmental
;
Hemoglobins
;
Humans
;
Liver
;
Nephrosis
;
Peptidyl-Dipeptidase A
8.The Study of CDKN2/p16INK4A Mutation in Human Breast Cancer.
Tae Jin SONG ; Eun Sook LEE ; Jeong Ah KWON ; Chong Suk KIM ; Jeoung Won BAE ; Bum Hwan KOO
Journal of the Korean Surgical Society 1998;55(2):167-175
The p16 is a cyclin-dependent kinase inhibitor(CDKI) that inhibits cell cycle progression. In recent studies, homozygous deletions of p16 gene have been noted in some cancer cell lines, which implies the deletion or mutation of p16 gene may contribute to the malignant progression of cells in some ways. This study was to investigate the frequency of p16 gene mutation in breast cancer patients by using polymerase chain reaction-single stranded confromational polymorphysm(PCR-SSCP) analysis. Examination of 24 blood samples and corresponding 16 tissue samples from 24 breast cancer patients were performed by PCR-SSCP method. Four from 24 blood samples(16.7%) disclosed 3 abnormal bands and one band shifting. Among 13 tissue samples revealed three conformational changes(23.1%). In two cases, there were abnormal bands in both blood samples and cancer tissues. One case with no products by PCR in the tissue sample showed a band shifting in the blood sample. Three cases with no PCR products in tissue samples may considered as total allelic deletion of the p16. The cases of abnormal PCR-SSCP results show some abnormalities on direct sequencing by Sanger method as T base insertion, C/T and A/G bases substitution. The results may suggest some of breast cancer patients have germline mutations of the p16 gene and some have somatic mutations. In the carcinogenesis of some breast cancers, p16 gene mutation may dysregulates the cell cycle, that may play an important role in the unlimited tumor cell proliferations.
Breast Neoplasms*
;
Breast*
;
Carcinogenesis
;
Cell Cycle
;
Cell Line
;
Genes, p16
;
Germ-Line Mutation
;
Humans*
;
Phosphotransferases
;
Polymerase Chain Reaction
9.Accumulation of mtDNA Deletion (Delta mtDNA4977) showing Tissue-Specific and Age-Related Variation.
Hye Jin JEONG ; Hyung Min CHUNG ; Sung Won CHO ; Hyun Ah KIM ; Kyung Sool LEE ; Hwang KWON ; Dong Hee CHOI ; In Pyung KWAK ; Tae Ki YOON ; Sook Hwan LEE
Korean Journal of Fertility and Sterility 2003;30(3):203-206
OBJECTIVES: Controversial arguments exists on both the case for and against on the accumulation of mitochondrial DNA (mtDNA) deletion in association to tissue and age. The debate continues as to whether this mutation is a major contributor to the phenotypic expression of aging and common degenerative diseases or simply a clinical insignificant epiphenomenon. The objective of this study was to determine whether the accumulation of mtDNA deletion is correlated with age-related and tissue-specific variation. MATERIALS AND METHODS: One hundred and fifty-seven tissues from blood, ovary, uterine muscle, and abdominal muscle were obtained from patients ranging in age from 31~60 years. After reviewing the clinical reports, patients with mitochondrial disorder were excluded from this study. The tissues were obtained at gynecological surgeries with the consent of the patient. Total DNA isolated from blood, ovary, uterine muscle, and abdominal muscle was amplified by two rounds of PCR using two pairs of primers corresponding to positions 8225-8247 (sense), 13551-13574 (antisense) for the area around deleted mtDNA and 8421-8440 (sense), 13520-13501 (antisense) for nested PCR product. A statistical analysis was performed by c2-test. RESULTS: About 0% of blood, 94.8% of ovary, 71.4% of uterine muscle, and 86.1% abdominal muscle harbored mtDNA deletion. When we examined the proportion of deleted mtDNA according to age deletion rate was 90% of ovary, 63.6% of uterine muscle, 77.7% of abdominal muscle in thirties and 100% of all tissue in fifties. CONCLUSION: The findings of this study suggest that the mtDNA deletion is varied in tissue-specific pattern and increases with aging.
Abdominal Muscles
;
Aging
;
Animals
;
DNA
;
DNA, Mitochondrial*
;
Female
;
Gynecologic Surgical Procedures
;
Humans
;
Mice
;
Mitochondrial Diseases
;
Myometrium
;
Ovary
;
Polymerase Chain Reaction
10.Sensory Based Feeding Intervention for Toddlers With Food Refusal: A Randomized Controlled Trial
Ah-Ran KIM ; Jeong-Yi KWON ; Sook-Hee YI ; Eun-Hye KIM
Annals of Rehabilitation Medicine 2021;45(5):393-400
Objective:
To investigate the effect of sensory-based feeding treatment for toddlers with food refusal compared with only providing nutrition education.
Methods:
Thirty-two toddlers with food refusal were randomly assigned to an intervention group or the control group. Toddlers in the intervention group received the sensory-based feeding intervention and the duration was for 1 hour for 5 days per week for 4 weeks, and then 1 hour, once a week for 8 weeks. Subjects in both the intervention and control groups received nutritional education once every 4 weeks for 12 weeks. The participants were evaluated at their entry into the study and 12 weeks later based on height, weight, behavior at mealtime using the Behavioral Pediatrics Feeding Assessment Scale (BPFAS), and sensory processing ability using the Infant/Toddler Sensory Profile.
Results:
Sixteen toddlers were included in each group. Two subjects in the intervention group and four toddlers in the control group were excluded from the final analysis. Significant improvements in child or parent subscales of the BPFAS were observed in the intervention group. In contrast, there were no significant improvements in any BPFAS scores in the control group.
Conclusion
Sensory-based feeding intervention was effective for improving mealtime behavior in toddlers with food refusal. Therefore, a sensory-based feeding intervention could be considered as an intervention approach to address feeding disorders in toddlers.