PURPOSE: The purpose of this study was to verify the relationship among depression, school adjustment, parent-child bonding, parental control and smartphone addiction, and to identify factors which influence smartphone addiction in adolescents. METHODS: A cross-sectional design was used, with a convenience sample of 183 middle school students from 3 middle schools. Data collection was conducted through self-report questionnaires from April to May, 2017. Data were analyzed using χ² test, Fisher's exact test, t-test, one-way ANOVA, correlation coefficient analysis, and binary logistic regression with SPSS Ver. 21.0. RESULTS: The mean score for smartphone addiction was 29.40. Of the adolescents, 21.3% were in the smartphone addiction risk group. Logistic regression analysis showed that gender (OR=7.09, 95% Cl: 2.57~19.52), school life (OR=0.86, 95% Cl: 0.79~0.93), smartphone usage time (OR=1.32, 95% Cl: 1.04~1.66), and parental control (OR=4.70, 95% Cl: 1.04~21.29) were effect factors for the smartphone addiction risk group. CONCLUSION: Findings indicate that school satisfaction was an important factor in adolescents' smartphone addiction. Control oriented parent management of adolescents' smartphone use did not reduce the risk of smartphone addiction and may have worsen the addiction. Future research is needed to improve understanding of how teachers and parents will manage their adolescents' use of smartphones.
Adolescent* ; Behavior, Addictive ; Data Collection ; Depression ; Humans ; Logistic Models ; Parents ; Smartphone*

Acute airway obstruction after anterior cervical surgery is rare, but does occur. Airway obstruction due to prevertebral soft tissue swelling is unpredictable, but potentially lethal. We managed a 67-year-old male who developed acute airway obstruction caused by marked prevertebral soft tissue swelling on the first day after anterior cervical discectomy and fusion at the C4-C5 level.
Aged ; Airway Obstruction ; Diskectomy ; Humans ; Male

During childhood, meningioma is an uncommon tumor, and in infants, extracranial meningioma is very rare. We report a case of primary cutaneous menigioma occurring on the scalp of a ten-month-old girl.
Female ; Humans ; Infant* ; Meningioma* ; Scalp*

PURPOSE: We investigated the effect on MK 801 on the development on brain damage, spontaneous recurrent seizures and mossy fiber sprouting in the pilocarpine induced status epilepticus animal model. Methods: Fifty two adult Sprague Dawley male rats(180-240gm) were studied under ketamine/xylazine(87mg/13mg/kg, IP) anesthesia and were implanted at the F3, P3, F4, P4 areas for recording EEG. With a single intraperitoneal(IP) administration of pilocarpine hydrochloride(360mg/kg), 70% developed status epilepticus(SE). When SE was not induced within 1 hour after injection of pilocarpine, the second dose of pilocarpine(175mg/kg, IP) was injected, with 86.6% of success. Results: All studied animals were divided into two large groups, one group was treated with NMDA receptor antagonist, the other was control group. The mean duration of SE was 62.00+/-6.80 minutes in the MK 801(1mg/kg, IP, 30 minutes after SE) treated group, and 61.10+/-7.37 minutes in the control group without any signigicant differences(P>0.05). Neuronal loss(necrosis dominantly) was observed at CA1 and CA3 areas in the control group, with more loss after 6 weeks than 24 or 72 hrs specimens. However, there was no neuronal loss in MK 801 treated group. The protective effect of MK 801 for neuronal injury suggested the glutamate receptor activation was involved in the neuronal injury induced by repeated seizure attack. Spontaneous recurrent seizures(SRS) were observed 70% of animals in the control group, but there were no SRS observed in the MK 801 treated group. The mean scores of mossy fiber sprouting were significantly higher in the control group(2.05+/-0.47) than MK 801 treated group(0.4+/-0.32)(P<0.05). Conclusion: These results suggested that SRS and mossy fiber sprouting were associated with NMDA receptor activation, and NMDA receptor activation had a key role in the epilepsy development.
Adult ; Anesthesia ; Animals* ; Brain* ; Dizocilpine Maleate* ; Electroencephalography ; Epilepsy ; Humans ; Male ; Models, Animal* ; N-Methylaspartate ; Neurons ; Pilocarpine* ; Receptors, Glutamate ; Seizures* ; Status Epilepticus*

The purpose of this study was to evaluate effects of a nutrition education focused on Food Exchange System for the higher grades elementary children. Nutrition education lessons (40 min/lesson, 4 times), '5 major nutrients and functions', '6 food groups', 'daily needed energy and food exchange units', 'good choice of snacks and balanced exercise' were provided to elementary students (5th grade students). This research was based on the data from two groups of elementary school children in the 'education' group (n = 31) and 'non-education' group (n = 31). We assessed the changes in dietary attitude, food habit and nutrition knowledge using questionnaire and nutrient intake using 24hr recall method by nutrition education using the developed pamphlet. After education, there was a significant difference in the dietary attitude score only in attitude of 'balanced meal' (p < 0.001) in the education group compared to the non-education group. In food habit, there were significant positive changes in the type of breakfast and in the priority of choosing snack in the educated group. In nutrition knowledge, there were significant increases in scores of 'function of carbohydrate' (p < 0.05), 'function of fat' (p < 0.01), 'function of vitamin' (p < 0.01), 'foods of carbohydrate' (p < 0.01), and 'foods of vitamin' (p < 0.01) in the educated group. After education,carbohydrate: protein: fat (CPF) ratio was significantly different between the two groups (education group, 59 : 16 : 26 vs. non-education group, 63 : 15 : 23). In evaluation of nutrient intake by Dietary Reference Intakes for Koreans (KDRIs), there were significant positive effects in energy (p < 0.05), thiamin (p < 0.05), riboflavin (p < 0.05), vitamin C (p < 0.05), phosphorus (p < 0.01), Fe (p < 0.01) and zinc (p < 0.01) in the education group compared to the non-education group. In conclusion, the developed 4 times' nutritional education pamphlet focused on individual daily energy requirements and food exchange units using food exchange system for higher grades' elementary student may positively change nutrition knowledge and dietary intakes.
Ascorbic Acid ; Breakfast ; Child ; Food Habits ; Humans ; Pamphlets ; Phosphorus ; Surveys and Questionnaires ; Riboflavin ; Snacks ; Zinc

Background: The purpose of this study was to identify factors inhibiting access of people with disability to health check-ups as well as identify pertinent solutions for improvement. Methods: Twenty-three people with disability older than the age of 19 who took respective health check-ups within the last 3 years were selected as participants. For the data collection, the 1:1 intensive interview was used. The data were analyzed by the grounded theory by Corbin and Strauss. Results: The results comprised nine categories, 23 subcategories, and 179 concepts. The central phenomenon was ‘failure to obtain check-ups.’ Causal conditions were observed as a ‘lack of communication method,’ ‘physical difficulties,’ and ‘staff unfamiliar with people with disability,’ Interventional conditions comprised ‘physical accessibility,’ ‘staffs’ competency,’ and ‘assistant manpower.’ The active strategy was included ‘to investigate the professional medical institution,’ ‘to find the medical institution of convenient traffic accessibility,’ ‘to overcome communication difficulties through equipment,’ and ‘to overcome linguistic barriers through sufficient communication.’ Whereas, ‘utilization of ancillary equipment,’ ‘the education of staffs on people with disability,’ ‘universal design manual,’ and ‘customized check-ups’ were included in the passive strategy. Such processes arose in the contextual conditions of ‘lack of expectations for daily lives’ and ‘lack of government support.’ As a consequence, the subjects participated experienced the ‘disadvantages,’ ‘discrimination,’ and ‘reduced reliability of the health check-ups.’ Conclusion The subjects who participated in this study emphasized ‘staffs familiar with people with disability’ and ‘systems customized for people with disability’ are mandatory to secure complete health check-ups for people with disability.

BACKGROUND: The effective ventricular function during ejection and filling is likely to depend on the coordinated action of the longitudinally and circumferentially orientated myocardial fibers and the function of these longitudinal fibers has not been extensively studied. METHODS: The role of longitudinally and circumferentially orientated fibers in left ventricular wall motion was evaluated by M-mode echocardiograms of the mitral ring(whose motion reflect long axis change) and the standard minor axis(left ventricular posterior wall), simultaneous recordings of phonocardiograms and electrocardiograms on the paper (speed 100mm/sec), in 24 healty individuals, 17 patients with mitral stenosis, 11 patients with open mitral commissurotomy and 17 mitral valve replaced patients. RESULTS: In the controls long axis shortening significantly preceded minor axis shortening (phase difference between two axes : 20+/-3 msec, mean+/-SEM) during early systole, indicating left ventricle become more spherical. This phase difference was also observed in the patients with mitral stenosis and in those with open mitral commissurotomy. In patients with mitral valve replacement(MVR) whose papillary muscles had been sectioned, the onset of long axis shortening was more delayed during early systole than that of short axis(-33+/-6msec) and the end of shortening was also prolonged to early diastole more than that of normal controls (54+/-3 msec vs 90+/-8 msec, mean+/-SEM, p<0.01 by t-test). CONCLUSION: We observed the time relations between long and short axis motion in normal controls. It can be concluded that the reversed time relation in patients with MVR is one of the important factors which may effect negatively on ventricular function and long-term prognosis, thus the surgical procedures to preserve papillary annular continuity should be considered in patients with mitral valvular disease. And the controlled, prospective, clinical trials with homogenous groups of patients are needed to evaluate the potential benefits of papillary annular continuity in preserving atrio-ventricular interaction in patients undergoing mitral valvular surgery.
Axis, Cervical Vertebra* ; Diastole ; Echocardiography ; Electrocardiography ; Heart Valve Diseases* ; Heart Ventricles ; Humans ; Mitral Valve ; Mitral Valve Stenosis ; Papillary Muscles ; Prognosis ; Systole ; Ventricular Function

PURPOSE: Recently, enterococcus spp. have become one of the most common nosocomial pathogens with increasing rates of multi-drug resistance. However, study on enterococcal urinary tract infections (UTIs) in children is very limited, especially community acquired UTIs. We studied the clinical characteristics of enterococcus spp. in community acquired UTIs and antibiotic resistance within our urban area. METHODS: All children with first episode of community acquired UTIs due to enterococcus spp. and Echerichia coli who were admitted in Pusan National University Children's Hospital between January 2010 and January 2013 were included in our study. We retrospectively reviewed their medical records. RESULTS: During the study period, 201 patients were identified to have first episode of community acquired UTIs. 154 cases were E.coli UTIs (76.6%) and 11 cases were enterococcal UTIs (5.5%) and all enterococcus spp. were Enterococcus feacalis. In enterococcal UTI group, voiding cystourethrogram(VCUG) was performed in 7/11 patients and demonstrated 4 vesicoureteral refluxes (VURs) with renal scar and 3 patients underwent corrective surgery. In E.coli UTI group, VCUG was performed in 121/154 patients and demonstrated 23 VURs and 11 patients underwent corrective surgery. Enterococcal group had significant high rate of underlying urinary abnormalities and surgical corrections compared with E. coli group. All enterococcus spp. were susceptible to ampicillin, vancomycin and linezolid, but all were resistant to tetracycline. They also showed 71.4% resistance to trimethoprim-sulfamethoxazole and 20% resistance to ciprofloxacin. CONCLUSION: Community acquired enterococcal UTIs in children were rare within our urban area. However, they could be indicative of severe underlying urinary tract abnormalities.
Acetamides ; Ampicillin ; Child ; Cicatrix ; Drug Resistance, Microbial ; Drug Resistance, Multiple ; Enterococcus ; Humans ; Oxazolidinones ; Retrospective Studies ; Tetracycline ; Trimethoprim, Sulfamethoxazole Drug Combination ; Urinary Tract ; Urinary Tract Infections ; Vancomycin ; Vesico-Ureteral Reflux ; Linezolid

PURPOSE: The purpose of this study was to compare the effect of recirculation rate according to cannulation direction and interval among hemodialysis patients with arteriovenous fistula (AVF).METHOD: The research used repeated measures design. This study was conducted among thirty patients who received hemodialysis three times a week for longer than a year through AVF at the I University hospital. Three different types of interventions were administered to the participants each week for three weeks. Needles were placed at a different distance and in a different direction each week: 7 cm apart from each other in antegrade direction during the first week, 5 cm apart in retrograde direction in the following week, and 7 cm apart in retrograde direction in the third week.RESULTS: No significant differences in the recirculation rate were found due to any of the three tested methods (p = 1.00).CONCLUSION: This finding suggests that, if the patients have well-functioned AVF, we can choose an appropriate intervention from among the three methods in consideration of the patient's diverse needs.
Arteriovenous Fistula ; Catheterization ; Humans ; Methods ; Needles ; Punctures ; Renal Dialysis

Reactive oxygen species (ROS) are involved in a diversity of important phenomena in the process of tumor development. To investigate the alterations of oxidative stress and their related systems in tumor progression, a variety of components in the antioxidative stress defense system were examined in prostate cancer cell lines, PC3 and LNCaP. Cell surface molecules involved in metastasis were expressed highly in PC3 cells compared with LNCaP cells, and strong invasion ability was shown in PC3 cells only. ROS level in LNCaP cells was twice higher than that in PC3 cells, although nitric oxide (NO) level was similar between the two cell lines. The content of GSH increased up to about 2-fold in PC3 compared with LNCaP. Activities of glutathione reductase, thioredoxin reductase, and glutathione S-transferase except catalase are significantly higher in PC3 cells than in LNCaP cells. Furthermore, oxidative stress-inducing agents caused down-regulation of GSH and glutathione S-transferase much more significantly in LNCaP cells than in PC3 cells. These results imply that malignant tumor cells may maintain low ROS content by preserving relatively high anti-oxidative capacity, even in the presence of stressful agents.
Antioxidants/metabolism ; Cell Line, Tumor ; Enzyme Induction ; Gene Expression Regulation, Neoplastic ; Humans ; Male ; *Oxidative Stress ; Prostatic Neoplasms/enzymology/*genetics/*metabolism ; Reactive Oxygen Species/*metabolism ; Research Support, Non-U.S. Gov't ; Thioredoxin Reductase (NADPH)/metabolism ; Up-Regulation/*genetics