1.A case of preoperative angiographic uterine artery embolization for the conservative treatment of cervical pregnancy.
Ki Young RYU ; Young Gyu LEE ; Soon Young SONG ; Ja Hong KOO ; Hwa Eun OH
Korean Journal of Obstetrics and Gynecology 2000;43(5):936-940
A 35 year old woman, gravid 5, multiparous, was admitted to our department at 6 weeks and 5 days of gestation after being diagnosed with cervical pregnancy. Before the evacuation, the uterine arteries were embolized using angiographic techniques. As a result, dilatation and curettage were performed with minimal hemorrhage. We report one case of cervical pregnancy managed, successfully with preoperative uterine artery embolization and evacuation.
Adult
;
Dilatation and Curettage
;
Female
;
Hemorrhage
;
Humans
;
Pregnancy*
;
Uterine Artery Embolization*
;
Uterine Artery*
2.Carcinoma Mixed within Milk of Calcium in a Breast: a Case Report.
Ji Sung PARK ; Young Mi PARK ; Eun Kyung KIM ; Jin Hwa LEE ; Ok Hwa KIM ; Ji Hwa RYU
Korean Journal of Radiology 2008;9(Suppl):S7-S9
Milk of calcium located in the breast is typically a benign entity. However, carcinoma may incidentally arise adjacent to or even within milk of calcium. Consequently, the characteristics of all observed calcific particles should be carefully analyzed. In this study, we report a case of carcinoma presented as malignant microcalcifications mixed within milk of calcium in a breast.
Breast Neoplasms/*chemistry/radiography
;
Calcium Carbonate/*analysis
;
Carcinoma, Ductal/*chemistry/radiography
;
Female
;
Humans
;
Mammography
;
Middle Aged
3.Two Cases of Meningitis Caused by Penicillin-and Cephalosporin-resistant Streptococcus pneumoniae.
Sun Hwa LEE ; Yang Soo KIM ; Eun Ok KIM ; Jun Hee WOO ; Jiso RYU ; Chik Hyun PAI
Korean Journal of Clinical Pathology 1997;17(4):629-635
Penicillin resistance in Streptococcus pneumoniae has increased sharply within the past few years and extended-spectrum cephalosporins haute been recommended for the empiric therapy of bacterial meningitis. However, therapeutic failure are being reported with increasing frequency due to extended-spectrum cephalosporin-resistant strains. We report two cases of meningitis caused by S. pneumoniae resistant to penicillin and cefotaxime. Both patients were recovered after ceftriaxone and vancomycin treatment, but one of them was left with neurological sequelae because of a delay in the institution of an antibiotic therapy appropriate for resistant pneumococci. This report indicates that extended-spectrum cephalosporin-resistance must be considered In all clinical isolates of S. pneumoniae and in vitro susceptibility testings should be performed promptly and accurately to detect antibiotic resistance.
Cefotaxime
;
Ceftriaxone
;
Cephalosporins
;
Drug Resistance, Microbial
;
Humans
;
Meningitis*
;
Meningitis, Bacterial
;
Penicillin Resistance
;
Penicillins
;
Pneumonia
;
Streptococcus pneumoniae*
;
Streptococcus*
;
Vancomycin
4.Comparison of Gefitinib and Erlotinib for Patients with Advanced Non-Small-Cell Lung Cancer.
Jin Hwa LEE ; Kyoung Eun LEE ; Yon Ju RYU ; Eun Mi CHUN ; Jung Hyun CHANG
Tuberculosis and Respiratory Diseases 2009;66(4):280-287
BACKGROUND: The epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs), became an attractive therapeutic option for advanced non-small-cell lung cancer (NSCLC). Several studies suggested that there might be some different efficacy or response predictors between gefitinib and erlotinib. We compared the efficacy and toxicity of gefitinib and erlotinib in Korean patients with advanced NSCLC and evaluated specific predictors of response for both gefitinib and erlotinib. METHODS: We collected the clinical information on patients with advanced NSCLC, who were treated with gefitinib or erlotinib at the Ewha Womans University Hospital, between July 2003 and February 2009. Median survival times were calculated using the Kaplan-Meier method. RESULTS: Eighty-six patients (52 gefitinib vs. 34 erlotinib) were enrolled. Patient median age was 64 years; 53 (62%) subjects were male. Out of the 86 patients treated, 83 received response evaluation. Of the 83 patients, 35 achieved a response and 12 experienced stable disease while 36 experienced progressive disease, resulting in a response rate of 42% and a disease control rate of 57%. After a median follow-up of 502 days, the median progression-free and overall survival time was 129 and 259 days, respectively. Comparing patients by treatment (gefitinib vs erlotinib), there were no significant differences in the overall response rate (44% vs. 39%, p=0.678), median survival time (301 days vs. 202 days, p=0.151), or time to progression (136 days vs. 92 days, p=0.672). Both EGFR-TKIs showed similar toxicity. In a multivariate analysis using Cox regression model, adenocarcinoma was an independent predictor of survival (p=0.006; hazard ratio [HR], 0.487; 95% confidence interval [CI], 0.292-0.811). Analyses of subgroups did not show any difference in response predictors between gefitinib and erlotinib. CONCLUSION: Comparing gefitinib to erlotinib, there were no differences in the response rate, overall survival, progression-free survival, or toxicity. No specific predictor of response to each EGFR-TKI was identified.
Adenocarcinoma
;
Carcinoma, Non-Small-Cell Lung
;
Disease-Free Survival
;
Female
;
Follow-Up Studies
;
Humans
;
Lung
;
Lung Neoplasms
;
Male
;
Multivariate Analysis
;
Protein-Tyrosine Kinases
;
Quinazolines
;
Receptor, Epidermal Growth Factor
;
Erlotinib Hydrochloride
5.Feasibility Study of Synthetic Diffusion-Weighted MRIin Patients with Breast Cancer in Comparison withConventional Diffusion-Weighted MRI
Bo Hwa CHOI ; Hye Jin BAEK ; Ji Young HA ; Kyeong Hwa RYU ; Jin Il MOON ; Sung Eun PARK ; Kyungsoo BAE ; Kyung Nyeo JEON ; Eun Jung JUNG
Korean Journal of Radiology 2020;21(9):1036-1044
Objective:
To investigate the clinical feasibility of synthetic diffusion-weighted imaging (sDWI) at different b-values in patientswith breast cancer by assessing the diagnostic image quality and the quantitative measurements compared with conventionaldiffusion-weighted imaging (cDWI).
Materials and Methods:
Fifty patients with breast cancer were assessed using cDWI at b-values of 800 and 1500 s/mm2 (cDWI800and cDWI1500) and sDWI at b-values of 1000 and 1500 s/mm2 (sDWI1000 and sDWI1500). Qualitative analysis (normal glandulartissue suppression, overall image quality, and lesion conspicuity) was performed using a 4-point Likert-scale for all DWI setsand the cancer detection rate (CDR) was calculated. We also evaluated cancer-to-parenchyma contrast ratios for each DWI setin 45 patients with the lesion identified on any of the DWI sets. Statistical comparisons were performed using Friedman test,one-way analysis of variance, and Cochran’s Q test.
Results:
All parameters of qualitative analysis, cancer-to-parenchyma contrast ratios, and CDR increased with increasingb-values, regardless of the type of imaging (synthetic or conventional) (p< 0.001). Additionally, sDWI1500 provided better lesionconspicuity than cDWI1500 (3.52 ± 0.92 vs. 3.39 ± 0.90, p< 0.05). Although cDWI1500 showed better normal glandular tissuesuppression and overall image quality than sDWI1500 (3.66 ± 0.78 and 3.73 ± 0.62 vs. 3.32 ± 0.90 and 3.35 ± 0.81, respectively;p< 0.05), there was no significant difference in their CDR (90.0%). Cancer-to-parenchyma contrast ratios were greater insDWI1500 than in cDWI1500 (0.63 ± 0.17 vs. 0.55 ± 0.18, p< 0.001).
Conclusion
sDWI1500 can be feasible for evaluating breast cancers in clinical practice. It provides higher tumor conspicuity,better cancer-to-parenchyma contrast ratio, and comparable CDR when compared with cDWI1500.
6.A case of multicystic encephalomalacia in a surviving twin after intrauterine death of co-twin.
Ki Young RYU ; Byung Min CHOI ; Soon Young SONG ; Hwa Eun OH
Korean Journal of Obstetrics and Gynecology 2001;44(3):621-624
The antepartum death of a fetus in a twin pregnancy may cause significant risk of mortality and morbidity in the surviving infant. Especially, one fetal demise of a twin pregnancy in the second or third trimester is an uncommon and difficult problem in the management of pregnancy. In this report, we present a case of single intrauterine death in a twin gestation diagnosed in the 27th week of pregnancy and the surviving fetus exhibits multicystic encephalomalacia three weeks later, antenatally.
Encephalomalacia*
;
Female
;
Fetus
;
Humans
;
Infant
;
Mortality
;
Pregnancy
;
Pregnancy Trimester, Third
;
Pregnancy, Twin
7.Outcomes and Prognostic Factors for Severe Community-Acquired Pneumonia that Requires Mechanical Ventilation.
Jin Hwa LEE ; Yon Ju RYU ; Eun Mi CHUN ; Jung Hyun CHANG
The Korean Journal of Internal Medicine 2007;22(3):157-163
BACKGROUND: Community-acquired pneumonia (CAP) remains a common and serious condition worldwide. The mortality from severe CAP remains high, and this has reached 50% in some series. This study was conducted to determine the mortality and predictors that contribute to in-hospital mortality for patients who exhibit CAP and acute respiratory failure that requires mechanical ventilation. METHODS: We retrospectively reviewed the medical records of 85 patients with severe CAP as a primary cause of acute respiratory failure, and this required mechanical ventilation in a setting of the medical intensive care unit (ICU) of a tertiary university hospital between 2000 and 2003. RESULTS: The overall in-hospital mortality was 56% (48/85). A Cox-proportional hazard model revealed that the independent predictive factors of in-hospital mortality included a PaCO2 of less than 45 mmHg (p<0.001, relative risk [RR]: 4.73; 95% confidence interval [CI]: 2.16-10.33), a first 24-hour urine output of less than 1.5 L (p=0.006, RR: 2.46, 95% CI: 1.29-4.66) and a high APACHE II score (p=0.004, RR: 1.09, 95% CI: 1.03-1.16). CONCLUSIONS: Acute respiratory failure caused by severe CAP and that necessitates mechanical ventilation is associated with a high mortality rate. Initial hypercapnia and a large urine output favored survival, whereas a high APACHE II score predicted mortality.
Aged
;
Aged, 80 and over
;
Community-Acquired Infections/complications/mortality/therapy
;
Female
;
Hospital Mortality
;
Humans
;
Hypercapnia
;
Male
;
Middle Aged
;
Pneumonia, Bacterial/complications/*diagnosis/*mortality/therapy
;
Predictive Value of Tests
;
Prognosis
;
Respiration, Artificial
;
Respiratory Insufficiency/*diagnosis/etiology/*mortality/therapy
;
Retrospective Studies
;
Treatment Outcome
8.A Retrospective study of the Cumulative Survival Rate and change of peri-implant marginal bone around implants associated with maxillary sinus augmentation.
Hwa Suk RYU ; Sun Jong KIM ; Eun Jin PARK ; Myung Rae KIM
The Journal of Korean Academy of Prosthodontics 2009;47(2):240-246
STATEMENT OF PROBLEM: Insertion of endosseous implants in the atrophic maxilla is often complicated because of lack of supporting bone. Augmentation of the floor of the maxillary sinus with autogenous bone & bone substitute graft has been proven to be a reliable treatment modality, at least in the short term. The aim of this study is to evaluate the factors of implant survival rate associated with maxillary sinus lift with grafts. MATERIAL AND METHODS: The sinus floor was augmented with bone grafts derived from modified Caldwell-luctechnique (71 subject, 93 sinus, 180 implants), the autogenous bone or autogenous + Bio-oss. Before implant installation the width and height of the alveolar crest were increased in the first stage procedure in 10 patients while in the other 61 patients augmentation and implant installation could be performed simultaneously width and height of the alveolar crest > 4 mm) or delayed installation. RESULTS: In all case bone volume was sufficients for implant insertion. 14 of 180 inserted implants were lost during follow up and the healing period Patient received implant supported overdenture (5 patients) or fixed bridge (62 patients). CONCLUSION: Within the limit of the result of this study, we conclude that bone grafting of the floor of the maxillary sinus floor with bone for the insertion of implants might be a reliable treatment modality and the autogenous bone graft and delayed installation method might be the factors for good results.
Bone Substitutes
;
Bone Transplantation
;
Denture, Overlay
;
Denture, Partial, Fixed
;
Floors and Floorcoverings
;
Follow-Up Studies
;
Humans
;
Maxilla
;
Maxillary Sinus
;
Minerals
;
Retrospective Studies
;
Survival Rate
;
Transplants
9.Correlation between Genotype and Phenotype in Korean patients with Spinal Muscular Atrophy.
Seon Young WON ; Kyong Hwa RYU ; Eun Ha LEE ; Si Houn HAHN ; Ki Soo PAI ; Sung Hwan KIM
Journal of the Korean Child Neurology Society 1999;7(1):10-20
BACKGROUND: Spinal muscular atrophy (SMA) is the second most common disease with autosomal recessive mode of inheritance in children and characterized by degeneration of anterior horn cells of the spinal cord resulting in weakness and wasting of voluntary muscles. This disease is caused by deletion of many candidate genes including SMN, p44, NAIP on chromosome 5q11.2-13.3. Although molecular characteristics of candidate genes were identified, genotype-phenotype correlation has not been clearly elucidated yet. Nevertheless, gene conversion, previously described as simply as gene deletion, appears to be very important mechanism as a molecular pathogenesis, and even makes more difficult to pursue the correlation. PURPOSE: This study was aimed to define the correlation between genotype and phenotype of SMA in Korean patients. The significance of SMN gene as well as NAIP gene, p44 gene in the progress of disease process and phenotypic correlation with gene conversion was evaluated. This study was also undertaken to determine the frequency of gene rearrangements in normal population. METHOD: Eight type I SMA patients and two type II SMA patients were studied. SMN, NAIP, and p44 gene deletion were analyzed by PCR amplification and restriction enzyme digestion with DraI, DdeI and AluI, respectively. p44 gene was also analyzed by SSCP. Gene conversion was defined by centromeric and telomeric SMN gene exon 7 to exon 8 PCR amplification followed by DdeI restiction enzyme digestion. RESULT: 1) Five of eight type I patients showed deletion of SMN, NAIP and p44 gene, while the rest of type 1 and all type II patients showed deletion of SMN gene only. 2) We examined SMN and NAIP gene deletion on 100 normal newborns, which showed the deletion of centromeric SMN gene in two newborns, the relative frequency of 2% in gene rearrangement. 3) There was one case of type I SMA showing deletion of telomeric SMN exon 7 but not SMN exon 8 suggestive of gene conversion occurred during the recombination as a molecular pathogenesis. CONCLUSION: The major deletion of SMA candidate genes, SMN, NAIP, and p44 gene appear to be involved in severe phenotype since these three candidate genes deletion were noted only in type 1 cases. However, SMN gene deletion only identified both in type 1 and type 2 explains that SMN gene may plan an major role in the pathogenesis of SMA and also suggests that other factors may be affecting the severity in spinal muscular atrophy. One patient with type I which showed the conversion of the centromeric SMN gene to the teleomeric gene strongly supports that SMN gene copy number may not be correlated with the severity in SMA. Our molecular findings suggest that phenotype is not clearly correlated with genotype. Prenatal screening should be carefully undertaken to interpretate because of high frequency of gene rearrangements in normal populations.
Anterior Horn Cells
;
Child
;
Digestion
;
Exons
;
Gene Conversion
;
Gene Deletion
;
Gene Dosage
;
Gene Rearrangement
;
Genetic Association Studies
;
Genotype*
;
Humans
;
Infant, Newborn
;
Muscle, Skeletal
;
Muscular Atrophy, Spinal*
;
Phenotype*
;
Polymerase Chain Reaction
;
Polymorphism, Single-Stranded Conformational
;
Prenatal Diagnosis
;
Recombination, Genetic
;
Spinal Cord
;
Wills
10.Prevalence and Risk Factors of Osteoporosis in Patients with Chronic Obstructive Pulmonary Disease.
Yun Su SIM ; Jin Hwa LEE ; Yon Ju RYU ; Eun Mi CHUN ; Jung Hyun CHANG
Tuberculosis and Respiratory Diseases 2009;66(3):186-191
BACKGROUND: Osteoporosis is a significant comorbidity in patients with chronic obstructive pulmonary disease (COPD). This study examined the prevalence and risk factors associated with osteoporosis in patients with COPD. METHODS: The bone mineral densities (BMDs) of the lumbar spine and femoral bone were measured in 53 patients with clinically stable COPD and 41 age- and gender-matched control subjects showing a normal lung function. Osteoporosis was defined as a T-score < or =-2.5. The subjects' clinical characteristics and laboratory data were reviewed, and multiple logistic regression analysis was used to identify the risk factors associated with osteoporosis in COPD patients. RESULTS: The prevalence of osteoporosis was 47% and 32% in the COPD patients and controls, respectively. In particular, using the femoral neck T-score, the prevalence of osteoporosis in COPD patients was higher than that in the controls (26% vs. 5%; p=0.006). The average T-score of the lumbar spine (p=0.025) and femoral neck of COPD patients were significantly lower than those of the controls (p=0.001). The forced expiratory volume in the 1 second (FEV1) % predicted (p=0.019; odds ratio [OR], 0.955; 95% confidence interval [CI], 0.919-0.993) and age (p=0.024; OR, 1.144; 95% CI, 1.018-1.287) were independently associated with osteoporosis in patients with COPD. CONCLUSION: Using the femoral neck T-score, the prevalence of osteoporosis in patients with COPD was higher than the age-and gender-matched controls. A lower FEV1 and older age further increase the risk of osteoporosis in patients with COPD.
Bone Density
;
Comorbidity
;
Femur Neck
;
Forced Expiratory Volume
;
Humans
;
Logistic Models
;
Lung
;
Odds Ratio
;
Osteoporosis
;
Prevalence
;
Pulmonary Disease, Chronic Obstructive
;
Risk Factors
;
Spine