PURPOSE:Ghrelin is an endogenous ligand of the growth hormone secretagogue receptor, and stomach is the major site of ghrelin secretion. The purpose of this study is to compare the serum ghrelin concentrations between patients with type 2 diabetes mellitus (DM) and normal adults. We studied also whether serum ghrelin levels in the patients with type 2 DM are correlated with body mass index (BMI), serum insulin, lipid profiles, and creatinine levels. METHODS:Forty patients with type 2 DM and forty normal adults were included in this study. We measured heights and weights of the subjects and calculated their BMIs. Blood samples were obtained to measure the ghrelin concentration and their sera were stored at -20degreeC until used. In all subjects, serum ghrelin levels were measured using the commercially available Ghrelin(human) EIA kit. RESULTS:No differences of mean values were detected between the control group and the type 2 diabetic group for age, body weight, BMI, and the levels of serum total cholesterol, triglyceride, HDL cholesterol, and creatinine. But ghrelin level of the type 2 diabetic group (71.1+/-30.5 ng/L) was significantly lower than the control group (139.7+/-36.9 ng/L). In the control group, the ghrelin level showed positive correlation with HDL cholesterol (Pearson's correlation coefficient=0.37, P<0.05). In the diabetic group, the ghrelin level showed weakly positive correlation with insulin concentration. However, there was no significant relationship between serum ghrelin and various parameters in the diabetic patients group. CONCLUSION: In this study, ghrelin concentration in type 2 diabetic patients was lower than that in the control group. In the control group, serum ghrelin concentrations were positively correlated with HDL cholesterol. In the type 2 diabetic group, there was no significant correlation between insulin and ghrelin concentrations.
Adult ; Body Mass Index ; Body Weight ; Cholesterol ; Cholesterol, HDL ; Creatinine ; Diabetes Mellitus ; Diabetes Mellitus, Type 2* ; Ghrelin* ; Humans ; Insulin ; Receptors, Ghrelin ; Stomach ; Triglycerides ; Weights and Measures

PURPOSE: To analyze high-resolution CT findings(HRCT) of pulmonary lymphangitic carcinomtosis(PLC) and to correlated the HRCT findings with the results of pulmonary function test(PFT). MATERIALS AND METHODS: In Twenty eight patients with radiologically and clinically proved PLC, we retrospectively reviewed HRCT scans and PFT(N=12). PLC was classified by extent and distribution of metastatic nodules and interstitial thickenings on HRCT and the findings were correlated with the results of PFT and impairment of PFT according to the degree of FEVl(forced expiratory volume in one second). RESULTS: On the basis of distribution of PLC, HRCT findings showed 20 cases of peripheral type, 3 cases of central type, and 5 cases of mixed type. In the patients with PFT diffuse type was 10 cases and localized type was 2 cases. In diffuse types, the restrictive pattern occurred in 7 cases (p<0.05) and in localized types, restrictive pattern occurred in 2 cases. Marked impairment of vital capacity was shown as restrictive pattern in 7 cases all of which were diffuse type and were consisted of peripheral type in 4 cases and mixed type in 3 cases. CONCLUSION: HRCT findings of lymphangitic carcinomatosis correlated well the type and degree of impairment of PFT. Especially in diffuse type of lymphangitic carcinomatosis, the result of pulmonary function test were prominent restrictive patterns. Marked impairment of pulmonary function occurred in patients with diffuse type and types with peripheral interstitial thickening(periphral and mixed types).
Carcinoma* ; Humans ; Respiratory Function Tests* ; Retrospective Studies ; Vital Capacity

The purpose of this study was to investigate the factors related to burnout of nurses working at intensive care units. Methods: The subjects of this study included 149 nurses in intensive care units at six general hospitals. The data was analyzed using the SPSS/WIN 23.0 program with descriptive statistics, t-test, ANOVA, Scheffé test, Pearson correlation coefficient, and Stepwise multiple regression analysis were used. Results: The factors significantly affecting burnout included work stress ‘high to very high’ (β=.39, p<.001), communication skill (β=-.24, p=.001), subjective health status ‘normal’ (β=.22, p=.001) and ‘bad to very bad’ (β=.20, p=.002) and problem-driven coping (β=-.19, p=.010) in order, and the explanatory power of these factors to the burnout was 46.3%. Conclusion: Based on the results, effective interventions need to be provided to improve intensive care unit nurses’ health conditions and to relieve their work stress. It is necessary to develop practical strategies to improve nurses’ communication and stress coping skills to reduce their burnout.

Purpose: This study aimed to explore the experience of clinical nurses regarding training programs for critically ill patients with coronavirus disease 2019 (COVID-19) and their educational needs. Methods: Qualitative data were analyzed using content analysis, and quantitative data were analyzed according to Borich's formula. Data for the study were collected in March 2021 from 16 nurses who had completed a nursing program for critically ill patients with COVID-19 and were working at three hospitals designated for COVID-19. Results: Participants' experiences were classified into three major categories, namely “Participation experiences and perceptions of the training program,” “Recommendations for improving the training program,” and “Perceptions of working in an infectious environment,” and 10 subcategories. According to Borich's formula, the most pressing educational needs in respiratory and non-respiratory nursing, respectively, were for “nursing care for patients on extracorporeal membrane oxygenation” and “application of continuous renal replacement therapy and caring for patients.” Conclusion To prepare for the periodic emergence of communicable infectious diseases throughout the world and cultivate nursing staff to care for critically ill patients, it is necessary to develop nursing education programs with content corresponding to nurses' needs. This study can be used as base data for cultivating nursing staff for critically ill patients with communicable infectious diseases in keeping with clinical nurses’ educational needs and basic educational materials for nursing students.

The purpose of this study was to investigate the factors related to burnout of nurses working at intensive care units. Methods: The subjects of this study included 149 nurses in intensive care units at six general hospitals. The data was analyzed using the SPSS/WIN 23.0 program with descriptive statistics, t-test, ANOVA, Scheffé test, Pearson correlation coefficient, and Stepwise multiple regression analysis were used. Results: The factors significantly affecting burnout included work stress ‘high to very high’ (β=.39, p<.001), communication skill (β=-.24, p=.001), subjective health status ‘normal’ (β=.22, p=.001) and ‘bad to very bad’ (β=.20, p=.002) and problem-driven coping (β=-.19, p=.010) in order, and the explanatory power of these factors to the burnout was 46.3%. Conclusion: Based on the results, effective interventions need to be provided to improve intensive care unit nurses’ health conditions and to relieve their work stress. It is necessary to develop practical strategies to improve nurses’ communication and stress coping skills to reduce their burnout.

The purpose of this study was to investigate the factors related to burnout of nurses working at intensive care units. Methods: The subjects of this study included 149 nurses in intensive care units at six general hospitals. The data was analyzed using the SPSS/WIN 23.0 program with descriptive statistics, t-test, ANOVA, Scheffé test, Pearson correlation coefficient, and Stepwise multiple regression analysis were used. Results: The factors significantly affecting burnout included work stress ‘high to very high’ (β=.39, p<.001), communication skill (β=-.24, p=.001), subjective health status ‘normal’ (β=.22, p=.001) and ‘bad to very bad’ (β=.20, p=.002) and problem-driven coping (β=-.19, p=.010) in order, and the explanatory power of these factors to the burnout was 46.3%. Conclusion: Based on the results, effective interventions need to be provided to improve intensive care unit nurses’ health conditions and to relieve their work stress. It is necessary to develop practical strategies to improve nurses’ communication and stress coping skills to reduce their burnout.

The purpose of this study was to investigate the factors related to burnout of nurses working at intensive care units. Methods: The subjects of this study included 149 nurses in intensive care units at six general hospitals. The data was analyzed using the SPSS/WIN 23.0 program with descriptive statistics, t-test, ANOVA, Scheffé test, Pearson correlation coefficient, and Stepwise multiple regression analysis were used. Results: The factors significantly affecting burnout included work stress ‘high to very high’ (β=.39, p<.001), communication skill (β=-.24, p=.001), subjective health status ‘normal’ (β=.22, p=.001) and ‘bad to very bad’ (β=.20, p=.002) and problem-driven coping (β=-.19, p=.010) in order, and the explanatory power of these factors to the burnout was 46.3%. Conclusion: Based on the results, effective interventions need to be provided to improve intensive care unit nurses’ health conditions and to relieve their work stress. It is necessary to develop practical strategies to improve nurses’ communication and stress coping skills to reduce their burnout.

OBJECTIVES: Various cytokines induced by inhalation of coal dust may mediate inflammation and lead to tissue damage or fibrosis, such as coal workers' pneumoconiosis (CWP). METHODS: To investigate the relevance of serum cytokines in CWP, the levels of serum interleukin-8 (IL-8) and tumor necrosis factor-alpha (TNF-alpha) as CWP biomarkers in 110 retired coal miners (22 controls and 88 CWP subjects) were related to cross sectional findings and 1-year progressive changes of the pneumoconiosis. Progressive changes of CWP were evaluated by paired comparison of chest radiographs. Analysis by a receiver operating characteristic curve assessed the biomarker potential of each cytokine. RESULTS: The mean serum IL-8 level was significantly higher in CWP compared to controls and IL-8 levels correlated with the degree of CWP. The median serum TNF-alpha level was significantly higher in subjects with progressive CWP compared to subjects without CWP progression. The area under the ROC curve for IL-8 (0.70) and TNF-alpha (0.72) for CWP identification and progression, respectively, indicated the biomarker potential of the two cytokines. Serum cutoff values of IL-8 and TNF-alpha were 11.63 pg/mL (sensitivity, 69%; specificity, 64%) and 4.52 pg/mL (sensitivity, 67%; specificity, 79%), respectively. CONCLUSION: The results suggest that high levels of serum IL-8 are associated with the presence of CWP and those of serum TNF-alpha are associated with the progression of CWP.
Anthracosis ; Biomarkers ; Coal ; Cytokines ; Dust ; Fibrosis ; Follow-Up Studies ; Inflammation ; Inhalation ; Interleukin-8 ; Matched-Pair Analysis ; Pneumoconiosis ; ROC Curve ; Sensitivity and Specificity ; Thorax ; Tumor Necrosis Factor-alpha

BACKGROUND: The purpose of this study was to determine the possibility and safety of performing carotid endarterectomy under cervical plexus block. METHODS: Carotid endarterectomy was performed in 30 cases with deep and superficial cervical plexus block, to monitor the patient for cerebral ischemia in the awake state. The toy horn was placed in the contralateral hand in each case and was activated by the patient on command and patients had counted ten repeatedly during carotid clamping. Patients who had not been experienced in the change of mental status or motor response had been operated without a shunt. RESULTS: Cerebral ischemia requiring shunt was observed in one case (3.3%). There were no permanent neurologic deficit and major cardiovascular complication and mortality. CONCLUSIONS: Carotid endarterectomy under cervical plexus block allows direct and precise observation of the patient's central nervous system function during the operation.
Animals ; Brain Ischemia ; Central Nervous System ; Cervical Plexus* ; Constriction ; Endarterectomy, Carotid* ; Hand ; Horns ; Humans ; Mortality ; Neurologic Manifestations ; Play and Playthings

Objectives: To identify the clinical utility of the Korean version of the Barkley Deficits in Executive Functioning Scale (K-BDEFS) assessing executive functioning. Methods: The patient group included 144 adult attention-deficit/hyperactivity disorder (ADHD) patients visiting the Adult ADHD Outpatient Clinic of the National Center for Mental Health. Adult ADHD Self-Report Scale version 1.1, Mini International Neuropsychiatric Interview, and K-BDEFS were used. The control subjects were 144 age, sex, and education-matched general adults who participated in the study of the validity of the K-BDEFS in Samsung Medical Center. Results: An analysis of the mean total K-BDEFS score, executive functioning symptom count, and ADHD-executive function (EF) index score revealed a significant difference between the adult ADHD and control group (p<0.05). Five subscales of the K-BDEFS, which assess the specific domains of the executive function, revealed a significant difference between the ADHD group and control group (p<0.05). The area under curve (AUC) of the K-BDEFS total score, the EF symptom count, and the ADHD-EF index were 0.943, 0.949, and 0.908, respectively, in the analysis using the receiver operating characteristic curve. All AUC values were over 0.90. Therefore, KBDEFS is a reliable and valid screening instrument for diagnosing adult ADHD. In an assessment of the sensitivity and specificity of the cutoff scores, a cutoff of 183.5 points for the K-BDEFS total score, 26.5 points for the EF symptom count, and 23.5 points for the ADHD-EF index showed a reliable sensitivity and specificity above 80%. Conclusion To the best of the authors’ knowledge, this is the first study to examine the predictive validity and clinical utility of K-BDEFS in adult ADHD. The results suggest that the K-BDEFS could be used as a valid and reliable tool for the diagnosis and clinical intervention of adult ADHD.