1.Contrast Sensitivity Changes in Patients with Diabetic Retinopathy.
Eun Ah KIM ; Yoon Jung KOO ; Young Bok HAN
Journal of the Korean Ophthalmological Society 1995;36(9):1523-1528
Changes in contrast sensitivity have been demonstrated in patients with normal Snellen acuity. In an attempt to elucidate more sensitively the visual dysfunction before developement of either overt retinopathy or a reduction in Snellen acuity in patients with retinal disorders, contrast sensitivity test was performed in diabetic patients with normal Snellen acuity and control subjects matched for age and sex. The results were as follows. 1) Throughout all spatial frequencies(1.5 - 3.0 - 6.0 - 12.0 - 18.0 cpd), contrast sensitivity was significantly lower(P-value<0.01) in the diabetic eyes with retinopathy(30.7 - 49.3 - 52.5 - 16.1 - 7.8) than in the normal controls(42.5 - 84.3 - 103.0 - 60.5 - 25.1) or the diabetic eyes without retinopathy(43.1 - 92.2 - 95.8 - 43.4 - 16.4 ). 2) In high spatial frequencies(12.0 - 18.0 cpd) contrast sensitivity in the diabetic eyes without retinopathy group(43.4 - 16.4) was significantly decreased(P-value<0.01) in comparison with the normal controls(60.5 - 25.1). So, contrast sensitivity test is more sensitive test for central visual function than Snellen acuity.
Contrast Sensitivity*
;
Diabetic Retinopathy*
;
Humans
;
Retinaldehyde
2.MRI Features with Pathologic Correlation of Primary Ovarian Carcinoid:A Case Report
Bon Jae KOO ; Seong Kuk YOON ; Min Gyoung PAK ; Kyeong Ah KIM
Journal of the Korean Society of Radiology 2025;86(1):166-172
Primary ovarian carcinoid tumors are rare well-differentiated neuroendocrine tumors classified as monodermal teratomas. They usually occur in perimenopausal woman and are accompanied with mature cystic teratoma or mucinous tumors. The diagnosis may be supported by the clinical presentation of carcinoid syndromes such as flushing, diarrhea, or chronic constipation. Here, we report on the case of a 51-year-old female with surgically confirmed primary ovarian carcinoid, describe the MRI features of the tumor, and correlate them with the pathological findings.
3.MRI Features with Pathologic Correlation of Primary Ovarian Carcinoid:A Case Report
Bon Jae KOO ; Seong Kuk YOON ; Min Gyoung PAK ; Kyeong Ah KIM
Journal of the Korean Society of Radiology 2025;86(1):166-172
Primary ovarian carcinoid tumors are rare well-differentiated neuroendocrine tumors classified as monodermal teratomas. They usually occur in perimenopausal woman and are accompanied with mature cystic teratoma or mucinous tumors. The diagnosis may be supported by the clinical presentation of carcinoid syndromes such as flushing, diarrhea, or chronic constipation. Here, we report on the case of a 51-year-old female with surgically confirmed primary ovarian carcinoid, describe the MRI features of the tumor, and correlate them with the pathological findings.
4.MRI Features with Pathologic Correlation of Primary Ovarian Carcinoid:A Case Report
Bon Jae KOO ; Seong Kuk YOON ; Min Gyoung PAK ; Kyeong Ah KIM
Journal of the Korean Society of Radiology 2025;86(1):166-172
Primary ovarian carcinoid tumors are rare well-differentiated neuroendocrine tumors classified as monodermal teratomas. They usually occur in perimenopausal woman and are accompanied with mature cystic teratoma or mucinous tumors. The diagnosis may be supported by the clinical presentation of carcinoid syndromes such as flushing, diarrhea, or chronic constipation. Here, we report on the case of a 51-year-old female with surgically confirmed primary ovarian carcinoid, describe the MRI features of the tumor, and correlate them with the pathological findings.
5.GnRH Agonist Therapy to Protect Ovarian Function in Young Korean Breast Cancer Patients.
Hyun Jung PARK ; Young Ah KOO ; Young Hyuck IM ; Byung Koo YOON ; DooSeok CHOI
Journal of Korean Medical Science 2010;25(1):110-116
The increased survival of patients with breast cancer has given rise to other problems associated with the complications of chemotherapy. One major complication is premature ovarian failure, an especially harmful outcome for women of reproductive age. This study was performed to evaluate the efficacy of GnRH agonist (GnRHa) treatment on protecting ovarian function in young breast cancer patients (30.59+/-5.1 yr) receiving chemotherapy after surgery. Twenty-two women were enrolled and given subcutaneous injections of leuprolide acetate (3.75 mg) every 4 weeks during chemotherapy. Follow-up laboratory tests (luteinizing hormone [LH], follicle stimulating hormone [FSH], and estradiol) were performed 1, 3, and 6 months after chemotherapy. Menstruation patterns and clinical symptoms were followed up for a mean duration of 35.6+/-1.7 months. FSH and LH levels were normal in all patients 6 months after completing chemotherapy (8.0+/-5.3, 4.4+/-2.7 mIU/mL, respectively). During follow-up, none of the patients complained of menopausal symptoms and 81.8% experienced recovery of menstruation. This report is the first trial of GnRHa as a treatment modality to protect ovarian function during adjuvant chemotherapy in young Korean breast cancer patients.
Adult
;
Antineoplastic Agents/adverse effects/therapeutic use
;
Antineoplastic Agents, Hormonal/therapeutic use
;
Breast Neoplasms/diagnosis/*drug therapy/surgery
;
Combined Modality Therapy
;
Cyclophosphamide/adverse effects/therapeutic use
;
Doxorubicin/adverse effects/therapeutic use
;
Female
;
Follicle Stimulating Hormone/analysis
;
Gonadotropin-Releasing Hormone/*agonists
;
Humans
;
Leuprolide/administration & dosage
;
Luteinizing Hormone/analysis
;
Menstruation
;
Ovarian Function Tests
;
Primary Ovarian Insufficiency/etiology/*prevention & control
;
Republic of Korea
;
Tamoxifen/therapeutic use
;
Time Factors
6.Effects of Adding Intravenous Pamidronate to Ongoing Menopausal Hormone Therapy in Postmenopausal Korean Women with Low Bone Mineral Density
Young Ah KOO ; Kyung A SON ; Suk Joo CHOI ; Byung Koo YOON
Journal of Menopausal Medicine 2019;25(3):117-122
OBJECTIVES: We evaluated the effects of adding intravenous pamidronate to ongoing menopausal hormone therapy (MHT) on bone mineral density (BMD) in postmenopausal Korean women with low BMD.METHODS: This retrospective cohort study included 74 postmenopausal women who received MHT for at least 1 year and had a BMD T-score of less than −2.0. Maintaining the same MHT regimen, these women were divided into two groups: oral placebo group (n = 44) and a pamidronate group of patients with gastrointestinal discomfort (n = 30) who received 15–30 mg pamidronate intravenously every 3–12 months. BMD was reviewed at 12-month follow-up. Bone resorption markers in both groups, urinary deoxypyridinoline levels in the placebo group, and serum N-telopeptide of type I collagen in the pamidronate group were assessed at 6 and 12 months.RESULTS: At baseline, the body mass index (BMI), duration of previous MHT, and femur neck (FN) BMD differed between the groups. Within-group analysis revealed that BMD of the lumbar spine (LS) and total hip (TH) significantly increased in the placebo group, whereas those of the LS, FN, and TH increased in the pamidronate group. The increase in BMD of LS was significantly greater in the pamidronate group, after adjusting for BMI and duration of previous MHT (mean change: 3.7% vs. 6.2%; P < 0.001). There were no changes in bone resorption markers in either group.CONCLUSIONS: Adding intravenous pamidronate to ongoing MHT for 12 months might increase LS BMD in postmenopausal Korean women with low BMD.
Body Mass Index
;
Bone Density
;
Bone Resorption
;
Cohort Studies
;
Collagen Type I
;
Female
;
Femur Neck
;
Follow-Up Studies
;
Hip
;
Hormone Replacement Therapy
;
Humans
;
Osteoporosis
;
Postmenopause
;
Retrospective Studies
;
Spine
7.Patterns of failure and prognostic factors in resected extrahepatic bile duct cancer: implication for adjuvant radiotherapy.
Tae Ryool KOO ; Keun Yong EOM ; In Ah KIM ; Jai Young CHO ; Yoo Seok YOON ; Dae Wook HWANG ; Ho Seong HAN ; Jae Sung KIM
Radiation Oncology Journal 2014;32(2):63-69
PURPOSE: To find the applicability of adjuvant radiotherapy for extrahepatic bile duct cancer (EBDC), we analyzed the pattern of failure and evaluate prognostic factors of locoregional failure after curative resection without adjuvant treatment. MATERIALS AND METHODS: In 97 patients with resected EBDC, the location of tumor was classified as proximal (n = 26) and distal (n = 71), using the junction of the cystic duct and common hepatic duct as the dividing point. Locoregional failure sites were categorized as follows: the hepatoduodenal ligament and tumor bed, the celiac artery and superior mesenteric artery, and other sites. RESULTS: The median follow-up time was 29 months for surviving patients. Three-year locoregional progression-free survival, progression-free survival, and overall survival rates were 50%, 42%, and 52%, respectively. Regarding initial failures, 79% and 81% were locoregional failures in proximal and distal EBDC patients, respectively. The most common site was the hepatoduodenal ligament and tumor bed. In the multivariate analysis, perineural invasion was associated with poor locoregional progression-free survival (p = 0.023) and progression-free survival (p = 0.012); and elevated postoperative CA19-9 (> or =37 U/mL) did with poor locoregional progression-free survival (p = 0.002), progression-free survival (p < 0.001) and overall survival (p < 0.001). CONCLUSION: Both proximal and distal EBDC showed remarkable proportion of locoregional failure. Perineural invasion and elevated postoperative CA19-9 were risk factors of locoregional failure. In these patients with high risk of locoregional failure, adjuvant radiotherapy could be considered to improve locoregional control.
Bile Duct Neoplasms
;
Bile Ducts, Extrahepatic*
;
Celiac Artery
;
Cystic Duct
;
Disease-Free Survival
;
Follow-Up Studies
;
Hepatic Duct, Common
;
Humans
;
Ligaments
;
Mesenteric Artery, Superior
;
Multivariate Analysis
;
Prognosis
;
Radiotherapy, Adjuvant*
;
Recurrence
;
Risk Factors
;
Survival Analysis
;
Survival Rate
8.Survey on Parental Knowledge about Febrile Convulsion.
Sung Koo KIM ; Young Jun KIM ; Phil Soo OH ; Young Ah LEE ; Ha Joo CHOI ; Hae Sun YOON
Journal of the Korean Pediatric Society 1998;41(11):1559-1564
PURPOSE: We surveyed parental knowlege about febrile convulsion in order to reduce unnecessary use of diagnostic method and management, and to use as an educational guideline. METHODS: The survey composed of four items : etiology, diagnosis and treatment, prognosis, and method management at home. The rate of correct answers on the total questionnaire, and each questionnaires was compared to the febrile convulsion group (FCG) and control group (CG), to a group that had one episode of febrile convulsion and two and more episodes. The questionnaire about method management was compared to FCG and CG. RESULTS: Comparisons done on the general profiles between FCG and CG showed no singnificant difference statistically. The rate of correct answers on the total questionnaire is 30.6% in FCG and 21.2% in CG. The rate of correct answers on the total questionnaire is 29.0% in the group that had one episode of febrile convulsion, and 33.0% in two and more episodes. Comparing the method management between FCG and CG, cold massage and acupuncture were higher in FCG, statistically. CONCLUSION: The rate of correct answers showed no significant difference between FCG and CG, and was very low in both groups. There is also no difference in the rate of correct answers. Parental knowledge about proper management before they go to the hospital is insufficient. Therefore, we need to establish an educational program on febrile convulsion in order to reduce the use of unnecessary diagnostic method and inappropriate management.
Acupuncture
;
Diagnosis
;
Humans
;
Massage
;
Parents*
;
Prognosis
;
Surveys and Questionnaires
;
Seizures, Febrile*
9.Clinical Characteristics and Courses in Patients with Early-Onset and Late-Onset Obsessive-Compulsive Disorder.
Chan Hyung KIM ; Keun Ah CHEON ; Min Seong KOO ; Yoon Young NAM ; Chang Hyung HONG ; Hong Shick LEE
Korean Journal of Psychopharmacology 2003;14(2):163-171
OBJECTIVE: Obsessive-compulsive disorder (OCD) is a clinically heterogeneous disorder with a bimodal pattern in age onset and treatment outcomes. This study attempted to ascertain the importance of the age factor for a better phenotypic precision. Therefore, the authors compared adult OCD patients with an early symptom onset to adult OCD patients with a later symptom onset. METHODS: One hundred sixty five patients with OCD were evaluated with semistructured interviews;79 with symptom onset before the age of 17 (early onset group) and 86 with symptom onset after the age of 17 (late onset group). The two groups were analyzed in terms of Y-BOCS (Yale-Brown Obsessive Compulsive Scale) scores and demographic data including clinical variables. RESULTS: Early onset group has more comorbidity of tic disorder and lesser of depression and anxiety disorder than late onset group. Early onset group showed more family history of tic disorder than late onset group. The treatment response to SSRI is relatively declined after 18 months of initiation in early onset group. CONCLUSION: The results indicate that age at onset may be an important factor in subtyping OCD. Early onset group may have more biological and familial tendency that might be differentiate the two groups.
Adult
;
Age Factors
;
Age of Onset
;
Anxiety Disorders
;
Comorbidity
;
Depression
;
Humans
;
Obsessive-Compulsive Disorder*
;
Tic Disorders
10.Crohn's Disease Involving Small Intestine and Colon: 2 cases report.
Shi Nae LEE ; Sun Hee CHANG ; Hee Soo YOON ; Hea Soo KOO ; Ok Kyung KIM ; Ryung Ah LEE ; Eung Beum PARK
Korean Journal of Pathology 1997;31(4):379-382
Crohn's disease was originally described as a small bowel disorder and has been known to involve the large bowel in approximately 40% of all cases with or without concomitant ileal component. We describe two cases of Crohn's diseas of small intestine and colon with a summary of differential diagnosis with ulcerative colitis. Both cases were originally diagnosed and treated as ileal tuberculosis. Grossly, there were skip lesions in both cases with prominent pseudopolyps and ulcerations in colon. Also noted were typical serpentine lesions in ileum as well as in colon. Microscopically, transmural inflammation was confirmed and one case showed scattered noncaseating granulomas in the wall. Submucosal edema and fibrosis with thickening of the wall was not prominent in colon. Polymerase chain reaction performed on paraffin block for the demonstration of Mycobacterium tuberculosis in one case showed negative reaction.
Colitis, Ulcerative
;
Colon*
;
Crohn Disease*
;
Diagnosis, Differential
;
Edema
;
Fibrosis
;
Granuloma
;
Ileum
;
Inflammation
;
Intestine, Small*
;
Mycobacterium tuberculosis
;
Paraffin
;
Polymerase Chain Reaction
;
Tuberculosis
;
Ulcer