OBJECTIVES: Suicide has become one of the most serious public health problems today in Korea. In this study, we investigated the demographic and social characteristics affecting the use of various suicide methods.METHODS: The data relating to the types of suicide deaths including factors such as the age, gender, education level, the time of death, the place of death, and the method of death reported from 2008 to 2014 in Yeoungdeungpo-gu, Seoul, which were reviewed and analyzed in this study. The variants of each suicide method were compared using a Chi square and the Fisher's exact test. Additionally, a Spearman correlation analysis and a logistic regression analysis were also performed.RESULTS: The results noted that more than half of suicide victims (68.4%) were male. The most frequent suicide deaths were in the spring (29.1%), and were performed during the afternoon (33.4%). In this review, it is noted that the methods of hanging (59.4%), leaping (17.0%), and gas intoxication (8.9%) were the most frequent suicide methods used by the suicide victims. A logistic regression analysis showed that poisoning had a lower risk of occurrence in night/morning time. In fact, gas poisoning was more dangerous in males, especially males who were younger, and occurred more frequently in the winter months. In this respect, the method of hanging was found to be higher in the low-educated group of people who committed suicide as reviewed. It is noted that drowning was a riskier factor in females, who were elderly and who committed suicide more frequently in the summer. The risk of leaping was increased in elderly populations who were also noted to be highly-educated.CONCLUSION: There was a significant difference in sex, age, educational level, season, suicide time, and suicide location according to each suicide method as reviewed and utilized in this study. The results note that it is necessary to emphasize the prevention of different suicide methods according to population groups.
Aged ; Drowning ; Education ; Female ; Gas Poisoning ; Humans ; Korea ; Logistic Models ; Male ; Methods ; Mortality ; Poisoning ; Population Groups ; Public Health ; Seasons ; Seoul ; Sociological Factors ; Suicide

The primary melanoma of spinal cord was rarely reported in the literatures. The authors report a case of primary spinal maligmant melanoma in the cervical spinal cord. A 41-year-old man presented several months history of right shoulder pain and right hemiparesis. Plain X-ray of the cervical spine, myelography, computerized tomography and magnetic resonance imaging showed intradural mass from third to fifth cervical spine level. The operation was performed, and intradural intra-and extramedullary brownish black tumor, which focally infiltrated to the dura and inner surface of lamina, was removed and the histological diagnosis was maligmant melanoma. And then chemotherapy with vincristine, bleomycin, cisplatine, followed by whole central nervous system radiation therapy was performed. The patient was discharged and followed up with no neurological interval change. The pertinent literature of spinal cord melanoma is reviewed and its rareness is discussed.
Adult ; Bleomycin ; Central Nervous System ; Cisplatin ; Diagnosis ; Drug Therapy ; Humans ; Magnetic Resonance Imaging ; Melanoma* ; Myelography ; Paresis ; Shoulder Pain ; Spinal Cord* ; Spine ; Vincristine

BACKGROUND/AIMS: The clinical outcome of patients with a partial virological response (PVR) to entecavir (ETV), in particular nucloes(t)ide analogue (NA)-experienced patients, has not been thoroughly investigated. The aim of the present study was to assess long-term outcomes in NA-naive and NA-experienced chronic hepatitis B patients with a PVR to ETV. METHODS: Chronic hepatitis B patients treated with ETV (0.5 mg/day) for at least 1 year were enrolled retrospectively. PVR was defined as a decrease in hepatitis B virus (HBV) DNA titer of more than 2 log10 IU/mL, yet with residual serum HBV DNA, as determined by real time-polymerase chain reaction, at week 48 of ETV therapy. RESULTS: A total of 202 patients (127 NA-naive and 75 NA-experienced, male 70.8%, antigen positive 53.2%, baseline serum HBV DNA 6.2 +/- 1.5 log10 IU/mL) were analyzed. Twenty-eight patients demonstrated a PVR. The PVR was associated with a high serum HBV DNA titer at baseline and at week 24. Virological response (< 60 IU/mL) was achieved in 46.2%, 61.5%, 77.6%, and 85% of patients with PVR at week 72, 96, 144, and 192, respectively. Resistance to antivirals developed in two NA-experienced patients. Failure of virological response (VR) in patients with PVR was associated with high levels of serum HBV DNA at week 48. CONCLUSIONS: Patients with PVR to ETV had favorable long-term virological outcomes. The low serum level of HBV DNA (< 200 IU/mL) at week 48 was associated with subsequent development of a VR in patients with PVR to ETV.
Adult ; Antiviral Agents/adverse effects/*therapeutic use ; Biomarkers/blood ; DNA, Viral/blood ; Drug Resistance, Viral ; Female ; Guanine/adverse effects/*analogs & derivatives/therapeutic use ; Hepatitis B virus/*drug effects/genetics/growth & development ; Hepatitis B, Chronic/diagnosis/*drug therapy ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Time Factors ; Treatment Outcome ; Viral Load

The pathogenesis of autoimmune hepatitis (AIH) is unclear, but viral infections have been proposed as a potential trigger in patients with genetic predisposition. We report a case of AIH following acute hepatitis A (AHA). A 57-year-old woman presented with fatigue and pitting edema for last 3 months. She had been diagnosed as an AHA 15 months ago based on clinical features, biochemical tests and positive HAV IgM antibody at a local clinic. Her biochemical tests was normalized one month after AHA diagnosis, but the serum levels of aminotransferase started to rise four months after AHA diagnosis. Antinuclear antibody was positive at a titer of 1:40, and anti-smooth muscle antibody was also positive. Hypergammaglobulinemia and liver pathology were typical for AIH. The patients had a score of 17 according to the International Autoimmune Hepatitis Group's system. She was given prednisolone and azathioprine and showed complete response to immunosuppressive therapy. The present case is the first report on AIH triggered by AHA in Korea.
Acute Disease ; Alanine Transaminase/blood ; Antibodies, Antinuclear/analysis ; Aspartate Aminotransferases/blood ; Autoantibodies/analysis ; Azathioprine/therapeutic use ; Female ; Hepatitis A/complications/*drug therapy ; Hepatitis, Autoimmune/*diagnosis/drug therapy/etiology ; Humans ; Hypergammaglobulinemia/diagnosis ; Immunosuppressive Agents/therapeutic use ; Liver/pathology ; Middle Aged ; Prednisolone/therapeutic use

BACKGROUND: Cerebrospinal fluid (CSF) examination can be used to verify the presence of primary malignancies as well as cases of central nervous system (CNS) metastasis. Because of its importance, there have been several studies concerning the sensitivity of CSF cytology. To determine the practical use and reproducibility of diagnoses based on CSF cytology, we evaluated this test by analyzing cytology results from consecutive CSF samples. METHODS: Between July 2010 and June 2013, 385 CSF cytology samples from 42 patients were collected. The samples were gathered using a ventricular catheter and reservoir. CSF cytology of all patients was examined more than two times with immunocytochemistry for cytokeratin. RESULTS: Primary neoplastic sites and histologic types of patients' metastatic cancer were diverse. The overall sensitivity for detecting malignancy was 41.3%. Even within short-term intervals, diagnoses frequently changed. CONCLUSIONS: Our results were inconsistent, with low sensitivity, when compared to the results of previous studies. However, CSF evaluation can still provide valuable diagnostic and prognostic information because adjuvant treatments are now routinely performed in patients with CNS metastasis. Negative CSF cytology results should not be ignored, and continuous CSF follow-up is essential for following the clinical course of patients with metastatic cancer involving the CNS.
Catheters ; Central Nervous System ; Cerebrospinal Fluid* ; Diagnosis ; Follow-Up Studies ; Humans ; Immunohistochemistry ; Keratins ; Neoplasm Metastasis

PURPOSE: To identify the endoscopic vascular anatomy of the prostate during Holmium laser enucleation of the prostate (HoLEP), and analyze the clinical risk factors associated with significant arterial bleeding. METHODS: We identified 107 consecutive patients with benign prostatic hyperplasia who underwent HoLEP between September 2009 and August 2010, performed by a single surgeon (S.J.O.). Two independent reviewers reviewed the surgery video database and completed a prespecified form. The location of bleeding arteries was marked at the level of the bladder neck, proximal prostate, distal prostate, and verumontanum. Arterial bleeding was classified into one of three grades according to bleeding severity (grades 2 and 3 indicate significant bleeding). RESULTS: The mean prostate volume was 65.1+/-31.5 mL, and the mean prostate-specific antigen (PSA) level was 3.69+/-3.58 ng/mL. During the HoLEP procedure, the most common locations of significant bleeders were the 2-5 and 7-10 o'clock positions in the proximal prostate. The average number of bleeding arteries was 12.1+/-7.9 per procedure, and 1.93+/-1.20 per 10 mL of prostate volume. Multivariate analysis revealed that prostate volume and serum PSA were significant parameters for estimating the number of bleeding vessels. CONCLUSIONS: During the HoLEP procedure, the most common locations of significant bleeders were the 2-5 and 7-10 o'clock positions in the proximal prostate. Prostate volume was associated with the number of bleeders. A careful approach to the capsular plane of the proximal prostate facilitates early hemostasis during the HoLEP procedure, especially with larger adenomas.
Adenoma ; Arteries ; Hemorrhage ; Hemostasis ; Humans ; Lasers, Solid-State* ; Multivariate Analysis ; Neck ; Prostate* ; Prostate-Specific Antigen ; Prostatic Hyperplasia ; Risk Factors ; Transurethral Resection of Prostate ; Urinary Bladder

OBJECTIVE: The Life Events Checklist is a brief screening instrument that is used for potentially traumatic events such as accidents, disasters, sexual or physical assaults, or combat-related exposures. The original English version was recently tested for reliability and validity and it showed good psychometric properties, and so its use is recommended for the assessment of trauma. METHODS: This study investigated the reliability and validity of a Life Events Checklist-Korean version in 157 consecutive psychiatric outpatients at a university-affiliated teaching hospital. The questionnaire also included the Impact of Events Scale-Revised (IES-R), the Beck Depression Inventory (BDI), and the State and Trait Anxiety Inventory (STAI). Correlation and principal component analyses were conducted. RESULTS: The four week test-retest reliability was good and the internal consistency was acceptable. In addition, the number of traumatic events was significantly correlated with the posttraumatic depressive and anxiety symptoms, which demonstrated the convergent validity of the scale. Additionally, exploratory factor analysis identified a six-factor structure that explained 57.2% of the total variance. CONCLUSION: These findings support the reliability and validity of the Life Events Checklist-Korean version.
Anxiety ; Checklist ; Depression ; Disasters ; Factor Analysis, Statistical ; Hospitals, Teaching ; Humans ; Life Change Events ; Mass Screening ; Outpatients ; Principal Component Analysis ; Psychometrics* ; Surveys and Questionnaires ; Reproducibility of Results

No abstract available.
Captopril* ; Diagnosis* ; Hypertension, Renovascular* ; Radionuclide Imaging*

STATEMENT OF PROBLEM: Temporary soft relining materials are used in a diverse clinical situations such as tissue conditioner, relining material, functional impression by varying its viscoelasticity. However, reproduction of consistent viscoelasticity has been not possible. MATERIALS AND METHODS: Considering setting mechanism of this material, this study has measured the effect of varying amount of void in dynamic viscoelasticity of soft relining material, with three different mixing methods. In each methods 10 specimens were made and subjected to dynamic viscoelastic test which were measured at specific times over period of 72 hours. RESULTS: The analysis of the result shown that there was no statistically significant differences between different mixing methods. CONCLUSION: Different mixing methods had no effect over control of viscoelasticity of soft lining material. Further research is recommended for under similar oral environmental condition.
Reproduction

PURPOSE: The aim of this study is to investigate the seroepidemiology of hepatitis A and hepatitis B in Korean children. METHOD: 801 children aged 6 to 12 years were enrolled. IgG antibody to hepatitis A virus (anti-HAV), hepatitis B surface antigen (HBsAg), antibody to HBsAg (anti-HBs), and IgG antibody to HBc (anti-HBc) were measured by radioimmunoassay. RESULTS: Of the 801 children, the seroprevalence of anti-HAV was 0%. Three (0.4%) were seropositive for HBsAg. The seroprevalence of anti-HBs was 61.8%. Two (0.4%) of 495 anti-HBs positive subjects were positive for anti-HBc. Of the 801 children, 658 (82.1%) had received hepatitis B vaccination. CONCLUSIONS: Since natural anti-HAV is not acquired in the childhood, the outbreak of hepatitis A is possible in adolescents and young adults. The decrease in seroprevalence of HBsAg and the increase in seroprevalence of anti-HBs might result from hepatitis B vaccination program in childhood.
Adolescent ; Child* ; Hepatitis A Antibodies ; Hepatitis A virus ; Hepatitis A* ; Hepatitis B Surface Antigens ; Hepatitis B* ; Hepatitis* ; Humans ; Immunoglobulin G ; Radioimmunoassay ; Seroepidemiologic Studies ; Vaccination ; Young Adult