BACKGROUND: Analysis of mutations in the epidermal growth factor receptor gene (EGFR) is important for predicting response to EGFR tyrosine kinase inhibitors. The overall rate of EGFR mutations in Korean patients is variable. To obtain comprehensive data on the status of EGFR mutations in Korean patients with lung cancer, the Cardiopulmonary Pathology Study Group of the Korean Society of Pathologists initiated a nationwide survey. METHODS: We obtained 1,753 reports on EGFR mutations in patients with lung cancer from 15 hospitals between January and December 2009. We compared EGFR mutations with patient age, sex, history of smoking, histologic diagnosis, specimen type, procurement site, tumor cell dissection, and laboratory status. RESULTS: The overall EGFR mutation rate was 34.3% in patients with non-small cell lung cancer (NSCLC) and 43.3% in patients with adenocarcinoma. EGFR mutation rate was significantly higher in women, never smokers, patients with adenocarcinoma, and patients who had undergone excisional biopsy. EGFR mutation rates did not differ with respect to patient age or procurement site among patients with NSCLC. CONCLUSIONS: EGFR mutation rates and statuses were similar to those in published data from other East Asian countries.
Adenocarcinoma ; Asian Continental Ancestry Group ; Biopsy ; Carcinoma, Non-Small-Cell Lung* ; Diagnosis ; Epidermal Growth Factor* ; Female ; Humans ; Lung Neoplasms ; Mutation Rate ; Pathology ; Protein-Tyrosine Kinases ; Receptor, Epidermal Growth Factor* ; Smoke ; Smoking

Background: The purpose of this study was to evaluate the applicability of the Korean Brief Comprehensive Geriatric Assessment Questionnaire through testing the reliability and validity of it. Methods: Questionnaire consisted of items on medical, functional, mental, socioeconomic status and lifestyle was administered as test-retest on 78 elderly outpatients at 6 university hospitals in Seoul, Korea. Weighted kappa value, kappa value, Pearson correlation coefficients and overall percent agreement were calculated to measure reliability. Validity coefficient was estimated by using reliability coefficient. Results: Reliability coefficients and validity coefficients were higher than 0.50 (fair or good) for 28 items (87.5%) among 32. For test- retest reliability, median was 1.00 (range, 0.87-1.00) for overall percent agreement, 0.66 (range, 0.27~1.00) for kappa value, and 0.83 (range, 0.65~1.00) for Pearson's correlation coefficients. Differences of reliability and validity were identified by gender for 19 items (59.4%), and by age group for 12 items (37.5%). Conclusion: The Korean Brief Comprehensive Geriatric Assessment Questionnaire appears to be a reliable and valid screening tool. After additional study is performed, this instrument can be used as a useful tool for comprehensive outpatient geriatric assessment.
Aged ; Geriatric Assessment* ; Hospitals, University ; Humans ; Korea ; Life Style ; Mass Screening ; Outpatients ; Surveys and Questionnaires* ; Reproducibility of Results* ; Seoul ; Social Class

PURPOSE: The purpose of this study is to evaluate the psychometric properties of the Korean version of the King's Health Questionnaire(KHQ) in patients with stress urinary incontinence. MATERIALS AND METHODS: Multicenter prospective study was undertaken in 106 patients with stress urinary incontince. Psychometric properties including discriminant validity, convergent validity were evaluated and the Cronbach's alpha coefficients were calculated. Test-retest analysis was performed and the sensitivity to clinical change before and after treatment was also evaluated. RESULTS: The psychometric properties and clinical validity of the KHQ Korean version were confirmed in 106 study population. The KHQ's good reliability was evidenced by Cronbach's alpha coefficients of>0.60, indicating to change in patients' perception of bladder condition in all domains. CONCLUSION: Our analyses confirm excellent psychometric properties for the Korean version of KHQ, which appears to provide a valid and reliable instrument for clinical usages in Korea.
Female ; Humans ; Korea ; Prospective Studies ; Psychometrics* ; Surveys and Questionnaires* ; Translations ; Urinary Bladder ; Urinary Incontinence* ; Urination

BACKGROUND AND OBJECTIVES: Although Gore-Tex is popularly used in nasal augmentation in human, studies about the histological changes have been carried out only in animal models. The purpose of this study is to investigate histological changes of Gore-Tex used in nasal augmentation in human. SUBJECTS AND METHODS: Gore-Tex of 24 patients who underwent nasal augmentation using Gore-Tex (non-reinforced sheets) 2-36 months ago and had re-operated for the sole cosmetic problems was obtained. Histologic examination was performed from specimens including Gore-Tex and the surrounding soft tissue with light microscope and electromicroscope. RESULTS: Histologically, connective tissue ingrowth was observed in all specimen. But the degree of foreign body reaction and collagen deposit varied from specimen to specimen and had no relationship with the duration. Neovascularization was observed from specimen whose duration was longer than 12 months and degenerative calcification was observed from 36 month old specimen. CONCLUSION: Unlike the findings of previous reports, individual differences and partial degenerative lesions in Gore-Tex were observed. Additional studies are required to confirm the stability of Gore-Tex as an implant to be used in human.
Child, Preschool ; Collagen ; Connective Tissue ; Foreign-Body Reaction ; Humans* ; Individuality ; Models, Animal ; Polytetrafluoroethylene ; Rhinoplasty

The Caudal regression syndrome is characterized by sacrococcygeal or lumbosacrococcygeal agenesis, of variable extent, most often accompanied by multiple musculoskeletal abnormalities of the pelvis and legs. It is rare fetal complication of diabetic pregnancy. Although the exact teratogenic mechanism is not known, hyperglycemia appears to play a crucial role as a teratogen. Strict control of diabetes preconceptually and in early pregnancy is presumed to reduce the risk of occurrence. We report a case of caudal regression syndrome detected by pelvic radiography and MRI in the newborn of the diabetic mother.
Humans ; Hyperglycemia ; Infant, Newborn* ; Leg ; Magnetic Resonance Imaging ; Mothers* ; Musculoskeletal Abnormalities ; Pelvis ; Pregnancy ; Radiography

During the past 50 years, the maternal mortality ratio has decreased dramatically. The leading causes of maternal deaths were pulmonary embolism, the complications of the pregnancy-induced hypertension, hemorrhage, the complications of the ectopic pregnancy and infection. Pulmonary embolism is one of the most fatal maternal complications that abruptly happen and rapidly progress, and has been a major cause of maternal death recently. Early detection of pulmonary embolism is difficult, because there is not any specific clinical symptoms and signs. We have experienced a case of a fatal pulmonary embolism which was diagnosed by lung perfusion scan on postoperative 1 day after cesarean delivery and managed with heparin therapy. We report this case with a brief review of literatures.
Female ; Hemorrhage ; Heparin ; Hypertension, Pregnancy-Induced ; Lung ; Maternal Death ; Maternal Mortality ; Perfusion ; Phlebography ; Pregnancy ; Pregnancy, Ectopic ; Pulmonary Embolism*

BACKGROUND: Korean Instrumental Activities of Daily Living(K-IADL) scale was developed to measure the elderly function. The aim of the present study was to establish the validity and reliability of K-IADL scale. METHODS: Clinical validity and convergent validity was tested. Reliability was tested by internal consistency(Cronbach`s alpha), two weeks test-retest method, and interrator correlation. RESULTS: Cronbach`s alpha was 0.938. 2 weeks test-retest correlations in all 10 items were higher than 0.674. Interrator agreements were high in all 10 items(H=0.808~0.947). Normal control group had lower scores than patients group in all 10 items(p=0.000). Correlation coefficient between K-IADL score and brain-disability grade was between -0.336(laundry) and -0.663(using transportation)(p=0.000). CONCLUSIONS: Korean Instrumental Activities of Daily Living(K-IADL) scale is a valid and reliable instrument. In the future, the studies showing an association between K-IADL and mortality, prognosis are needed.
Aged ; Humans ; Mortality ; Prognosis ; Reproducibility of Results*

BACKGROUND AND OBJECTIVES: Expression of HMGI(Y), a nucleoprotein that binds to A/T rich sequences in the minor groove of the DNA helix, is observed in neoplastically transformed cells but not in normal cells. We have analyzed HMGI(Y) expression in the head and neck squamous cell carcinoma and evaluated its clinicopathologic significance. MATERIALS AND METHODS: HMGI(Y) mRNA was measured by RT-PCR and immunohistochemical staining for HMGI(Y) was performed in the head and neck squamous cell carcinoma. RESULTS: Expression of HMGI(Y) by immunohistochemical staining was observed in 35 of 40 (87.5%) head and neck squamous cell carcinoma samples, whereas normal mucosa and/or the mucosa adjacent to the tumor tissue showed negative or weakly positive staining (p<0.05). Semiquantification of HMGI(Y) by RT-PCR were 2.98+/-2.24 in cancer and 0.47+/-0.25 in normal tissue (p<0.001). High expression of HMGI(Y) was observed in well differentiated group and recurrent cases compared to the less differentiated group and/or non-recurrent cases (p<0.05). But no significant correlation was observed between the levels of HMGI(Y) expression and other clinical factors such as stage, tumor size and cervical lymph node metastasis. CONCLUSION: We think that the HMGI(Y) gene plays some roles in carcinogenesis and cellular proliferation of the head and neck squamous cell carcinoma. HMGI(Y) gene can be used as a cancer marker, but the correlation between the gene expression and the prognosis of the cancer patient should be proved in the future studies.
Carcinogenesis ; Carcinoma, Squamous Cell* ; Cell Proliferation ; DNA ; Gene Expression ; Head* ; Humans ; Lymph Nodes ; Mucous Membrane ; Neck* ; Neoplasm Metastasis ; Nucleoproteins ; Prognosis ; RNA, Messenger

OBJECTIVE: The aim of this study was to evaluate the clinical experiences of patients with the primary tubal cancer diagnosed and treated in the Department of Obstetrics and Gynecology, Gacheon Medical School from January 1996 to December 2000. METHODS: Age, symptoms, Pap smear, CA-125, preoperative diagnosis, mode of surgery, stage, additional pathologic finding, mode of adjuvant therapy and survival periods of patients were reviewed retrospectively. RESULTS: The mean age of patients was 57.4 years. The symptoms were vaginal spotting, leukorrhea and pelvic mass. Three patients were treated by simple hysterectomy and both salpingoophorectomy. Staging laparotomy was done in 4 patients. Three patients were in stage I, 2 patients were in stage II and 2 patients were in stage III. Endometrial adenocarcinoma was present in 1 patient and endometrial hyperplasia was present in 1 patient. The mean follow-up period of five patients were 25.4 months and 2 patients were lost for follow-up. Conclusions: The primary tubal cancer was rare gynecologic malignancy and the preoperative diagnosis was difficult due to non-specific symptoms and signs. Staging laparotomy and adjuvant chemotherapy should be done like in ovarian cancer. More studies may be needed for the associated endometiral diseases.
Adenocarcinoma ; Chemotherapy, Adjuvant ; Diagnosis ; Endometrial Hyperplasia ; Fallopian Tubes* ; Female ; Follow-Up Studies ; Gynecology ; Humans ; Hysterectomy ; Laparotomy ; Leukorrhea ; Metrorrhagia ; Obstetrics ; Ovarian Neoplasms ; Retrospective Studies ; Schools, Medical

No abstract available.
Female ; Humans ; Hypertension, Pregnancy-Induced* ; Pregnancy ; Pregnancy Trimester, Second*