No abstract available.
HLA-DR Antigens* ; Thyroid Gland* ; Thyroid Neoplasms*

BACKGROUNDS: As the elderly population in-creases the health problem, especially dementia, becomes the clinically important problem. So in the part of primary care medicine it becomes so important that family physician make a focus on the detection, evaluation, and management of demented patient. Until nowadays there is few cohort study about the dementia and few nursing home in Korea. So author performed the MMSE-K in the elderly who are over 65 to get the cognitive function for early diagnosis, management and rehabilitation of psychosocial problem. METHODS: One hundred three persons who included in community society in Seoul and nursing home of Kyunggido were tested. The survey was done twice on september 1997 and September 1998. Author used the MMSE-K to the elderly by same doctors. The analysis was done by SAS 6.12 and t-test, one-way ANOVA and two-way ANOVA with linear trend test. RESULTS: The mean of first MMSE-K score in the community is 26.1 and in the nursing home is 24.4. And the mean of second MMSE-K score in the community is 25.5 and in the nursing home is 22.0. The MMSE-K score is elevated with male and longer duration of education and is decreased with the advanced age in two groups. According to the classification by MMSE-K score the number of people who have normal cognitive function is 45(43.7%), mild impaired cognitive function is 45(43.7%), moderately impaired cognitive function is 13(12.6%) and none has severely impaired cognitive function in both groups. The follow up MMSE-K score shows that the difference of two MMSE-K scores increases as the age increases. CONCLUSION: Until todays there is few study that designed in the form of cohort study about the elderly cognitive function in Korea. So family physicians must perform the prospective cohort study with the consistent concern and effort to get the research data about the dementia for earthy detection, management and rehabilitation for elderly.
Aged* ; Classification ; Cohort Studies ; Dementia ; Early Diagnosis ; Education ; Follow-Up Studies* ; Gyeonggi-do ; Humans ; Korea ; Male ; Nursing Homes ; Physicians, Family ; Primary Health Care ; Rehabilitation ; Seoul

Collagenous colitis is an uncommon condition charaeterized clinically by diarrhea and weight loss and histologically by thickening of the subepithelial collagen band with chromic inflammation. Laboratory tests of blood, urine and stool, and colonscopic findings are usually normal. The etiology of collagenous colitis is unknown. We report a case of collagenous colitis improved after treatment with sulfasalazine with review of literatures.
Colitis, Collagenous* ; Collagen* ; Diarrhea ; Inflammation ; Sulfasalazine ; Weight Loss

BACKGROUND AND OBJECTIVES: We investigated the inter-arm difference in blood pressure of the general Korean population to identify associated factors. SUBJECTS AND METHODS: A total of 806 participants aged 30 to 64 years without history of major cardiovascular disease were analyzed in this cross-sectional study. They participated in the Cardiovascular and Metabolic Disease Etiology Research Center cohort study that began in 2013. Brachial blood pressure was measured simultaneously for both arms using an automated oscillometric device equipped with two cuffs in seated position. After five minutes of rest, systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured three times. The average of the three measurements was used for analysis. Multivariate logistic regression models were used to identify factors associated with inter-arm differences in blood pressure. RESULTS: The mean inter-arm difference was 3.3 mmHg for SBP and 2.0 mmHg for DBP. Large inter-arm differences (≥10 mmHg) in SBP and in DBP were found in 3.7% and 0.9% of subjects, respectively. A large inter-arm difference in SBP was associated with mean SBP (p=0.002) and C-reactive protein (p=0.014) while a large inter-arm different in DBP was only associated with body mass index (p=0.015). Sex, age, and anti-hypertensive medication use were not associated with differences in inter-arm blood pressure. CONCLUSION: Large inter-arm difference in blood pressure is only present in a small portion of healthy Korean adults. Our findings suggest that high SBP, chronic inflammation, and obesity may be associated with larger difference in inter-arm blood pressure.
Adult ; Arm ; Blood Pressure* ; Body Mass Index ; C-Reactive Protein ; Cardiovascular Diseases ; Cohort Studies ; Cross-Sectional Studies ; Humans ; Inflammation ; Logistic Models ; Metabolic Diseases ; Obesity ; Posture

BACKGROUND/AIMS: The individual course of Crohn's disease is diverse, and some patients may require bowel resection. The aims of this study were to determine the early surgery rate of Crohn's disease and to identify risk factors associated with early surgery in Korea. METHODS: Ninety six patients with Crohn's disease (68 men; median age at the time of diagnosis: 25 years), who had been followed up more than a year, were retrospectively analyzed. Early surgery was defined as a bowel operation for Crohn's disease or its complications occurring within 3 years from diagnosis. Early surgery rate and risk factors for early surgery were identified. RESULTS: Fifteen patients (15.6%) underwent early surgery. The cumulative surgery rate was 8.6% after 6 months, 11.9% after 12 months, 14.1% after 18 months, and 16.7% after 24 to 36 months. Multivariate analysis revealed penetrating or stricturing behavior to be an independent risk factor for early surgery (p<0.001, Exp (B)=2.97 CI 1.39-6.37). CONCLUSIONS: The cumulative early surgery rate in Korean patients seems to be lower than Western patients. Penetrating or stricturing behavior is significantly associated with early surgery, requiring early aggressive medical treatments.
Adolescent ; Adult ; Aged ; Constriction, Pathologic ; Crohn Disease/*surgery ; Female ; Humans ; Male ; Middle Aged ; Multivariate Analysis ; Republic of Korea ; Retrospective Studies ; Risk Factors ; Sex Factors ; Time Factors

PURPOSE: When an x-ray beam of small field size is irradiated to target area containing an air cavity, such as larynx, the underdosing effect is observed in the region near the interfaces of air and soft tissue. With a larynx model, air cavity embedded in tissue-equivalent material, this study is intended for examining parameters, such as beam quality, field size, and cavity size, to affect the dose distribution near the air cavity. MATERIALS AND METHODS: Three x-ray beams, 4-, 6- and 10-MV, were employed to perform a measurement using a 2cm (width)xL (length in cm, one side of x-ray field used)x2cm (height) air cavity in the simulated larynx. A thin window parallel-plate chamber connected to an electrometer was used for a dosimetry system. A ratio of the dose at various distances from the cavity-tissue interface to the dose at the same points in a homogeneous phantom (observed/expected ratio, O/E), normalized buildup curves, and ratio of distal surface dose to dose at the maximum buildup depth were examined for various field sizes. Measurement for cavity size effect was performed by varying the height (Z) of the air cavity with the width kept constant for several field sizes. RESULTS: No underdosing effect for 4-MV beam for fields larger than 5cmx5cm was found. For both 6- and 10-MV beams, the underdosing portion of the larynx at the distal surface was seen to occur for small fields, 4cmx4cm and 5cmx5cm. The underdosed tissue was increased in its volume with beam energy even for similar surface doses. The relative distal surface dose to maximum dose was changed to 0.99 from 0.95, 0.92, and 0.91 for 4-, 6-, and 10-MV, respectively, with increasing field size, 4cmx4cm to 8cmx8cm. For 6- and 10-MV beams, the dose at the surface of the cavity ismeasured less than the predicted by about two and three percent, respectively, but decrease was found for 4-MV beam for 5cmx5cm field. For the 4cm x L x Z (height in cm), varying depth from 0.6 to 4.8cm, cavity, O/E > 1.0 was observed regardless of the cavity size for any field larger than about 8cmx8cm. CONCLUSION: The magnitude of underdosing depends on beam energy, field size, and cavity size for the larynx model. Based on the result of the study, caution must be used when a small field of a high quality x-ray beam is irradiated to regions including air cavities, and especially the region where the tumor extends to the surface. Low quality beam, such as, 4-MV x-ray, and larger fields can be used preferably to reduce the risk of underdosing, local failure. In the case of high quality beams such as 6- and 10-MV x-rays, however, an additional boost field is recommended to add for the compensation of the underdosing region when a typically used treatment field, 5cmx5cm, is employed.
Compensation and Redress ; Larynx*

BACKGROUND AND OBJECTIVES: Low-density lipoprotein cholesterol (LDL-C), an established cardiovascular risk factor, can be generally determined by calculation from total cholesterol, high-density lipoprotein cholesterol, and triglyceride concentrations. The aim of this study was to compare LDL-C estimations using various formulas with directly measured LDL-C in a community-based group and hospital-based group among the Korean population. SUBJECTS AND METHODS: A total of 1498 participants were classified into four groups according to triglyceride concentrations as follows: <100, 100–199, 200–299, and ≥300 mg/dL. LDL-C was calculated using the Friedewald, Chen, Vujovic, Hattori, de Cordova, and Anandaraja formulas and directly measured using a homogenous enzymatic method. Pearson's correlation coefficients, intraclass correlation coefficients (ICC), Passing & Bablok regression, and Bland-Altman plots were used to evaluate the performance of six formulas. RESULTS: The Friedewald formula had the highest accuracy (ICC=0.977; 95% confidence interval 0.974-0.979) of all the triglyceride ranges, while the Vujovic formula had the highest accuracy (ICC=0.876; 98.75% confidence interval 0.668–0.951) in people with triglycerides ≥300 mg/dL. The mean difference was the lowest for the Friedewald formula (0.5 mg/dL) and the percentage error was the lowest for the Vujovic formula (30.2%). However, underestimation of the LDL-C formulas increased with triglyceride concentrations. CONCLUSION: The accuracy of the LDL-C formulas varied considerably with differences in triglyceride concentrations. The Friedewald formula outperformed other formulas for estimating LDL-C against a direct measurement and the Vujovic formula was suitable for hypertriglyceridemic samples; it could be used as an alternative cost-effective tool to measure LDL-C when the direct measurement cannot be afforded.
Cardiovascular Diseases* ; Cholesterol* ; Humans ; Lipoproteins* ; Methods ; Risk Factors ; Triglycerides

PURPOSE: To determine the usefulness of CT for diagnosing metastases to primary and secondary echelon lymph nodes (LNs) and to investigate various CT findings of metastatic LNs in thyroid carcinomas. MATERIALS AND METHODS: We retrospectively reviewed the CT and histologic findings in 59 patients with thyroid carcinomas who had undergone thyroidectomy and neck dissection. Primary echelon LNs (Level VI) were removed by central neck dissection in all patients, and in 21, a total of 136 levels of secondary echelon LNs (Level II-V) were excised away by lateral neck dissection. CT criteria of metastatic LNs included large size, significant homogeneous enhancement, calcification, and cystic change. We evaluated the ability of CT to detect primary and secondary echelon LN metastasis and tried to determine which CT features were useful for the diagnosis of LN metastasis. RESULTS: Histologically, LN metastasis was found in 31 (53%) of 59 patients, including 30 with metastasis to primary echelon LNs. Of the 136 levels of secondary echelon LNs resected in 21 patients, 44 were found at histology to harbor metastatic foci. The sensitivities, specificities, positive and negative predictive values, and accuracies of CT in the diagnosis of metastasis to primary and secondary echelon LNs, respectively, were 27% and 93%, 100% and 93%, 100% and 87%, 57% and 97%, and 63% and 93%. While all secondary echelon LNs with at least one of the following CT criteria-large size (n=19), cystic or necrotic change (n=14), or calcifications (n=8)-were histologically proven to be metastatic, six (24%) of 25 such LNs with a sole sign of significant enhancement at CT were found to be due to reactive lymphadenopathy. CONCLUSION: Although CT was unable to detect metastasis to primary echelon LNs, it was useful in the detection of secondary echelon LN involvement. Large size, cystic change, and calcification are considered highly reliable signs of metastatic LNs.
Diagnosis* ; Humans ; Lymph Nodes* ; Lymphatic Diseases ; Neck Dissection ; Neoplasm Metastasis* ; Retrospective Studies ; Thyroid Gland* ; Thyroid Neoplasms* ; Thyroidectomy

No abstract available.
Cell Line, Tumor* ; Doxorubicin* ; Epirubicin* ; Humans*

STUDY DESIGN: A retrospective follow-up study comparing soft disc cervical myelopathy (Group A) and spondylotic bar cervical myelopathy (Group B). OBJECTIVES: To analyze different factors by comparing preoperative radiological and clinical data of Group A with that of Group B. SUMMARY AND LITERATURE REVIEW: The different causes of cervcal myelopathy resulted in different symptoms and prognoses. MATERIALS AND METHOD: A clinical and radiological analysis of the data in 31 patients who underwent an anterior cervical decompression and fusion was performed to assess the different factors between two groups. The patients were classified into two groups; 20 in Group A and 11 in Group B. Comparisons between the two groups were made in regard to the physical findings, radiological and clinical evaluation. RESULTS: The duration of myelopathy was 3 months in Group A and 8.7months in Group B. Of all cases, 5 cases (25.0%) in group A and 4 cases (36.4%) in group B had myelopathy associated with radiculopathy. Of the 20 cases in group A with myelopathy, 7 cases had a median compression and 13 cases had a paramedian compression on MRI. Of the 11 cases in group B with meylopathy, 9 cases had a median compression and 2 cases had a paramedian compression on MRI. The follow-up MRI of the 14 cases (73.7%) in group A and 2 cases (20.0%) in group B showed spontaneous regression of the T2 WI high signal intensity. CONCLUSION: In degenerative disc disease, the different causes of cervcal myelopathy result in different symptoms and prognoses. However, the treatment of choice in both groups is a one level anterior decompression and fusion.
Decompression ; Follow-Up Studies ; Humans ; Magnetic Resonance Imaging ; Prognosis ; Radiculopathy ; Retrospective Studies ; Spinal Cord Diseases*