Computerized Version of the Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children (KSADS-COMP): Development and Validation of the Korean Clinician-Administered Version

Objective@#The purpose of the present study was to develop and validate the Korean version of the clinician-administered KSADSCOMP, which is the recently updated, web-based computerized version of the Kiddie Schedule for Affective Disorders and Schizophrenia for school-age children (KSADS). @*Methods@#A total of 71 participants (mean age=12.04±3.86 years, female=29.57%) participated in the study. A child-adolescent psychiatrist established a diagnosis for the participant after a thorough psychiatric interview with the participant and the parent. Researchers who were blind to the diagnoses administered the clinician-administered KSADS-COMP to the parents and participants. The gold-standard diagnoses made by child-adolescent psychiatrists were compared to the current diagnoses generated by the clinician-administered KSADS-COMP. Percent agreement, Cohen’s Kappa, Gwet’s first-order agreement coefficient (AC1), sensitivity, specificity, positive predictive value, and negative predictive value were calculated. @*Results@#Gwet’s AC1, our preferred measure of agreement, showed excellent range between 0.78 and 1. Sensitivity, specificity, positive predicted value and negative predictive value also showed high scores. @*Conclusion@#The current study demonstrated excellent criterion validity of the Korean version of the clinician-administered KSADSCOMP, though the small sample size could be a limitation. The current study was the first study to examine the criterion validity of the KSADS-COMP. Due to its readily usable format and efficient and accurate diagnostic process, widely-use of KSADS-COMP is expected.

In vivo study for the hemostatic efficacy and foreign body reaction of a new powder-type polysaccharide hemostatic agent

Purpose@#Various hemostatic agents have been introduced in therapy as postoperative bleeding is a poor prognostic factor for postoperative outcomes. These products can be divided into those that directly promote the hemostatic cascade and those that physically form a barrier by absorbing blood. The latter, powder-type hemostatic agents have the advantages of being inexpensive and more absorbable with less foreign body reactions (FBRs) and are applicable to a relatively wide area. This study was conducted to verify the safety and efficacy of a newly invented polysaccharide product (OOZFIX, Theracion Biomedical), which improves blood absorption and hemostatic effects. @*Methods@#Two separate animal experiments were performed. The first evaluated FBRs histologically at 3 days, 2 weeks, and 4 weeks, after implantation of OOZFIX in rats, and the second compared hemostatic performance of OOZFIX and Arista AH (Bard) in the porcine liver punch biopsy model. @*Results@#We found minimal FBRs in the 3-day group and no reactions in both the 2-week and 4-week groups after implantation of hemostatic agents. The time to hemostasis of OOZFIX was not significantly different from that of Arista AH (median [interquartile range]: 9 [6–10] minutes vs. 8 [6–10] minutes, respectively; P = 0.522). When comparing the serial bleeding grade tendency, there was no statistical difference between OOZFIX and Arista AH (P = 0.656). @*Conclusion@#OOZFIX caused a minimal FBR that disappeared within 2 weeks in vivo, and its hemostatic performance was comparable with that of an existing agent, Arista AH. Further clinical studies are required in the future.

The Effect of Suicide Prevention Education on Attitudes Toward Suicide in Police Officers

Objective@#This study investigated the effect of suicide prevention education on attitudes toward suicide among police officers. @*Methods@#We used an anonymous questionnaire for 518 officers and surveyed the demographic profiles and examined attitudes toward suicide utilizing the Attitudes Towards Suicide Scale (ATTS) (1=totally agree, 5=totally disagree). Our study divided participants into two groups, based on whether or not they had received suicide prevention education, and examined the differences in attitudes toward suicide between the groups. @*Results@#Of the total population, 247 (47.7%) officers had received suicide prevention education. The education group thought suicide as a predictable matter, disagreeing significantly more with the ATTS factor ‘suicide is unpredictable’ (3.36 vs. 3.35; p=0.001) compared with the no education group. Also, the education group more perceived suicide as a cry for help and at the same time disagreed more with the notion ‘suicidal thoughts will never disappear’ (2.08 vs. 2.26; p=0.025, 3.2 vs. 3.05; p=0.035, respectively). @*Conclusion@#Officers with experience in suicide prevention education showed more positive attitude toward suicide and suicide prevention. These findings suggest a need to organize more opportunities of suicide prevention educations, such as making the training mandatory for police officers.

Diagnostic model for pancreatic cancer using a multi-biomarker panel

Purpose@#Diagnostic biomarkers of pancreatic ductal adenocarcinoma (PDAC) have been used for early detection to reduce its dismal survival rate. However, clinically feasible biomarkers are still rare. Therefore, in this study, we developed an automated multi-marker enzyme-linked immunosorbent assay (ELISA) kit using 3 biomarkers (leucine-rich alpha-2-glycoprotein [LRG1], transthyretin [TTR], and CA 19-9) that were previously discovered and proposed a diagnostic model for PDAC based on this kit for clinical usage. @*Methods@#Individual LRG1, TTR, and CA 19-9 panels were combined into a single automated ELISA panel and tested on 728 plasma samples, including PDAC (n = 381) and normal samples (n = 347). The consistency between individual panels of 3 biomarkers and the automated multi-panel ELISA kit were accessed by correlation. The diagnostic model was developed using logistic regression according to the automated ELISA kit to predict the risk of pancreatic cancer (high-, intermediate-, and low-risk groups). @*Results@#The Pearson correlation coefficient of predicted values between the triple-marker automated ELISA panel and the former individual ELISA was 0.865. The proposed model provided reliable prediction results with a positive predictive value of 92.05%, negative predictive value of 90.69%, specificity of 90.69%, and sensitivity of 92.05%, which all simultaneously exceed 90% cutoff value. @*Conclusion@#This diagnostic model based on the triple ELISA kit showed better diagnostic performance than previous markers for PDAC. In the future, it needs external validation to be used in the clinic.

Effect of Omega-3 and Korean Red Ginseng on Children with Attention Deficit Hyperactivity Disorder: An Open-Label Pilot Study

Objective@#The purpose of the present study was to evaluate the efficacy of omega-3 and Korean red ginseng on improving attention deficit hyperactivity disorder (ADHD) symptoms and cognitive function in children with ADHD. @*Methods@#A total of 40 children aged 6 to 12 years diagnosed with ADHD participated in this open-label trial. Participants received daily supplements containing 500 mg of omega-3 (eicosapentaenoic acid, 294 mg; docosahexaenoic acid, 206 mg) and 3 mg of Korean red ginseng extract (combination of ginsenoside Rg1, Rb1, and Rg3) for 12 weeks. No psychotropic drug was allowed during the study period. ADHD symptoms were assessed using the ADHD Rating Scale (ADHD-RS) and Clinical Global Impression-Severity (CGI-S) scale. Neuropsychological tests on sustained attention, short-term memory, and executive function were also assessed. @*Results@#After 12 weeks, participants showed significant improvements on ADHD-RS (31.12 ± 8.82 at baseline, 24.15 ± 11.45 at endpoint; p ＜ 0.001) and CGI-S (3.38 ± 1.18 at baseline, 2.94 ± 1.00 at endpoint; p ＜ 0.001). On the Continuous Performance Test, commission errors significantly decreased, while reaction time significantly increased. Immediate recall and delayed recall on both Auditory Verbal Learning Test and Complex Figure Test showed significant improvements. Scores of Color−Word Task from Stroop Color−Word Test also showed significant improvements after the treatment. The supplement was well tolerated. @*Conclusion@#The results of this pilot study suggest that the combination of omega-3 and Korean red ginseng may improve ADHD symptoms and cognitive function including attention, memory, and executive function in children with ADHD. Future randomized placebo-controlled trials with a larger sample is warranted.

Suicidal Ideation of the Elderly According to Their Involvement in Grandchild Care

The purpose of the present study was to examine the severity of suicidal ideation of the older adults according to the amount of involvement in grandchild care. Data for this research were drawn from a cross-sectional study conducted on community-dwelling adults aged 65 years or older. The 922 participants were divided into three groups according to their involvement in grandchild care: 18.5% had provided daily care, 12.4% had provided occasional care, and 69.1% had never cared for their grandchildren. ANCOVA analysis showed that the scores for depression was significantly lower in the group which took care of their grandchildren occasionally compared to the other two groups. The scores for suicidal ideation was significantly higher in the group which had never taken care of their grandchildren compared to the other two groups. Current study suggests that grandparenting may have a positive effect on suicidal ideation of the older adults.

Fully Automatic Segmentation of Acute Ischemic Lesions on Diffusion-Weighted Imaging Using Convolutional Neural Networks: Comparison with Conventional Algorithms

OBJECTIVE: To develop algorithms using convolutional neural networks (CNNs) for automatic segmentation of acute ischemic lesions on diffusion-weighted imaging (DWI) and compare them with conventional algorithms, including a thresholding-based segmentation. MATERIALS AND METHODS: Between September 2005 and August 2015, 429 patients presenting with acute cerebral ischemia (training:validation:test set = 246:89:94) were retrospectively enrolled in this study, which was performed under Institutional Review Board approval. Ground truth segmentations for acute ischemic lesions on DWI were manually drawn under the consensus of two expert radiologists. CNN algorithms were developed using two-dimensional U-Net with squeeze-and-excitation blocks (U-Net) and a DenseNet with squeeze-and-excitation blocks (DenseNet) with squeeze-and-excitation operations for automatic segmentation of acute ischemic lesions on DWI. The CNN algorithms were compared with conventional algorithms based on DWI and the apparent diffusion coefficient (ADC) signal intensity. The performances of the algorithms were assessed using the Dice index with 5-fold cross-validation. The Dice indices were analyzed according to infarct volumes ( 100), time intervals to DWI, and DWI protocols. RESULTS: The CNN algorithms were significantly superior to conventional algorithms (p < 0.001). Dice indices for the CNN algorithms were 0.85 for U-Net and DenseNet and 0.86 for an ensemble of U-Net and DenseNet, while the indices were 0.58 for ADC-b1000 and b1000-ADC and 0.52 for the commercial ADC algorithm. The Dice indices for small and large lesions, respectively, were 0.81 and 0.88 with U-Net, 0.80 and 0.88 with DenseNet, and 0.82 and 0.89 with the ensemble of U-Net and DenseNet. The CNN algorithms showed significant differences in Dice indices according to infarct volumes (p < 0.001). CONCLUSION: The CNN algorithm for automatic segmentation of acute ischemic lesions on DWI achieved Dice indices greater than or equal to 0.85 and showed superior performance to conventional algorithms.

Factors Associated with Willingness to Visit Psychiatric Clinic among General Adult Population in Bucheon City / 신경정신의학

OBJECTIVES: The aim of this study was to investigate various factors associated with the willingness to visit psychiatric clinics among the general adult population in Bucheon city, South Korea. METHODS: One thousand seventy-five adults completed a self-questionnaire assessing their willingness to visit psychiatric clinics, family history of mental illnesses, frequency of contact with the mentally ill, stigma and discrimination toward the mentally ill, and the Community Attitude toward the Mentally Ill (CAMI). Logistic regression analyses were performed to identify variables associated with the willingness to visit psychiatric clinics. RESULTS: Study results showed that being single was associated with reduced willingness to visit psychiatric clinics. Subjects who had more frequent contact with mentally ill patients were more willing to visit psychiatric clinics. Concerning the CAMI scale, higher scores in authoritarianism and lower scores in benevolence subscales were associated with greater willingness to visit psychiatric clinic. Subjects who strongly admitted the existence of the stigma, and discrimination, toward mentally ill patients were more willing to visit psychiatric clinics. CONCLUSION: Enhanced understanding of the factors associated with the willingness to visit psychiatric clinics would be helpful in reducing barriers to mental health services utilization in the community.

Variables Affecting to Attitudes towards Suicide among General Adult Population in the City of Bucheon / 신경정신의학

OBJECTIVES: The goal of this study was to investigate variables affecting attitudes toward suicide among the general adult population in the city of Bucheon, Korea. METHODS: Study participants included 1000 subjects over 18 years old who visited public offices in Bucheon, Gyeonggi Province, South Korea. Subjects completed a series of questionnaires covering demographic characteristics, clinical characteristics, and prior suicidal ideation and attempts. The Attitudes Toward Suicide-20 and the Center for Epidemiologic Studies-Depression Scales were used to assess attitudes toward suicide and the severity of depression, respectively. Exploratory factor analysis of the responses was performed. RESULTS: Analysis of responses on the Attitudes Toward Suicide-20 Scale revealed four important factors : permissiveness and unpredictability, attitudes toward suicide prevention, relationship between suicide causes and processes, and lack of comprehension of suicide. We assessed relationships among clinical and demographic variables by assessing scores on the Attitudes toward Suicide scale. Demographic characteristics (sex, age, marital status, education, economic status, and religion), clinical characteristics (physical and psychological health), and prior suicidal ideation and attempts affected respondents attitudes toward suicide. CONCLUSION: The variables identified as affecting attitudes toward suicide in this study were similar to those reported in previous studies (i.e., sex, age, religion, education, physical, and psychological health, prior suicidal ideation and attempts). In support of previous research results, we suggest that identifying groups that exhibit variables associated with attitudes toward suicide is an important step in suicide prevention, as such attitudes may influence subsequent behavior. Educational campaigns aimed at suicide prevention can be enhanced by focusing on attitudes toward suicide.

Incidence and Mortality after Proximal Humerus Fractures Over 50 Years of Age in South Korea: National Claim Data from 2008 to 2012

BACKGROUND: There has been lack of epidemiology of proximal humerus fracture using nationwide database in Asia. The purpose of this study was to investigate the incidence of proximal humerus fracture and its mortality following proximal humerus fracture in Korean over 50 years of age. METHODS: The Korean National Health Insurance data were evaluated to determine the incidence and mortality of proximal humerus fracture aged 50 years or older from 2008 through 2012. RESULTS: Proximal humerus fracture increased by 40.5% over 5 year of study. The incidence of fracture increased from 104.7/100,000 in 2008 to 124.7/100,000 in 2012 in women and from 45.3/100,000 in 2008 to 52.0/100,000 in 2012 in men, respectively. One year mortality rate after proximal humerus fracture was 8.0% in 2008 and 7.0% in 2012. One year mortality rate were 10.8% for men and 7.0% for women in 2008 and 8.5% for men and 6.4% for women in 2012. CONCLUSIONS: Our study showed that the proximal humerus fracture in elderly was recently increasing and associated with high mortality in Korea. Considering proximal humerus fracture was associated with an increased risk of associated fractures and an increased mortality risk, public health strategy to prevent the proximal humerus fracture in elderly will be mandatory.

Risk Factors for Suicidal Ideation in the Elderly / 신경정신의학

OBJECTIVES: This study investigated the factors associated with suicidal ideation in the elderly. METHODS: A total of 136 subjects over 60 years old who visited the public offices in Bucheon-si, Gyeonggi Province in South Korea participated in the study. Subjects completed a series of questionnaires including the following : demographic information ; physical illness ; psychological illness ; suicidal ideation. In addition, Center for Epidemiologic Studies-Depression Scale and Attitudes Towards Suicide-20 were used to assess the severity of depression and the attitude towards suicide, respectively. RESULTS: Multivariate logistic regression analyses were performed to determine the factors that affect suicidal ideation in the elderly. As a result, living alone, depression, having any physical illness, and permissive attitude towards suicide were risk factors for suicidal ideation in the elderly. CONCLUSION: ConclusionZZIn addition to previously identified risks factors (living alone, physical illness, and depression), the study found that permissive attitude towards suicide also serves as a risk factor for suicide in elderly people. Therefore, permissive attitude towards suicide should be addressed and evaluated in order to prevent suicide in the elderly.