• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.934-936
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• 2009

This study was to identify the correlation between the degree of burden, stress and social support of family caregivers in ICU patient. The subjects were 146 family care givers observed at a general hospital at D city. The level of stress that family caregivers experience the average points of 2.18, which is considered less than average. The level of burden that average point of 2.51. Points for level of subjective feeling ranged from 1.74 to 3.90. The average point of 3.03 is higher than that for objectively recognized feeling. The points for social support that average point of 3.03 for social support proves that families feel positive about the social support they are receiving. The level of stress which shows that the lower the income, the higher the stress. The effect on stress shows significance in subjective feelings of burden, social support, and employment, indicating that they have correlations with stress. Both the feeling of burden and social support have an impact upon the stress that patient families experience.

• International Journal of Contents
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• v.11 no.2
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• pp.69-73
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• 2015

This study was performed to determine the optimal doses of alfentanil or remifentanil (effect-site concentrations) required to prevent pain and other suffering after abdominal general surgery in ICU patients. A total of 52 general abdominal surgical patients (ASA IIIII) requiring artificial ventilatory care in the ICU were provided with either alfentanil (24 patients) or remifentanil (28 patients) through target controlled infusion (TCI). Alfentanil and remifentanil concentrations were titrated up and down until the pain score became less than 3 (VAS; Visual Analogue Score < 3). The effect-site concentrations (ng/ml) of alfentanil or remifentanil required to adequately control postoperative pain in the ICU were 64 +/- 12 and 1.9 +/- 0.5 for intubation with artificial ventilation, 57 +/- 9 and 1.7 +/- 0.7 for intubation with spontaneous ventilation, and 41 +/- 10 and 1.2 +/- 0.5 after extubation, respectively. Pain scores and the corresponding opioid concentrations were independent from respiratory condition. The three effect-site concentrations of alfentanil and remifentanil obtained from this clinical trial using the TCI technique can be a guideline in the administration of the same opioids to relieve the discomfort of ICU patients who have undergone abdominal general surgery.

• Journal of Korean Academy of Nursing
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• v.33 no.2
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• pp.162-169
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• 2003

Purpose: This study was to compare the predictive validity of Norton Scale(1962), Cubbin & Jackson Scale(1991), and Song & Choi Scale(1991). Method: Data were collected three times per week from 48~72hours after admission based on the four pressure sore risk assessment scales and a skin assessment tool for pressure sore on 112 intensive care unit(ICU) patients in a educational hospital Ulsan during Dec, 11, 2000 to Feb, 10, 2001. Four indices of validity and area under the curve(AUC) of receiver operating characteristic(ROC) were calculated. Result: Based on the cut off point presented by the developer, sensitivity, specificity, positive predictive value, negative predictive value were as follows : Norton Scale : 97%, 18%, 35%, 93% respectively; Cubbin & Jackson Scale : 89%, 61%, 51%, 92%, respectively; and Song & Choi Scale : 100%, 18%, 36%, 100% respectively. Area under the curves(AUC) of receiver operating characteristic(ROC) were Norton Scale .737, Cubbin & Jackson Scale .826, Song & Choi Scale .683. Conclusion: The Cubbin & Jackson Scale was found to be the most valid pressure sore risk assessment tool. Further studies on patients with chronic conditions may be helpful to validate this finding.

• Journal of Korean Academy of Nursing
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• v.42 no.3
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• pp.396-404
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• 2012

Purpose: The purpose of this study was to identify the features, risk scores and risk factors for deep vein thrombosis in critically ill patients who developed deep vein thrombosis in their lower extremities. Methods: The participants in this prospective descriptive study were 175 adult patients who did not receive any prophylactic medication or mechanical therapy during their admission in the intensive care unit. Results: The mean age was 62.24 (${\pm}17.28$) years. Men made up 54.9% of the participating patients. There were significant differences in age, body mass index, and leg swelling between patients who developed deep vein thrombosis and those who did not have deep vein thrombosis. The mean risk score was 6.71(${\pm}2.94$) and they had on average 4.01(${\pm}1.35$) risk factors. In the multiple logistic regression, body mass index (odds ratio=1.14) and leg swelling (odds ratio=6.05) were significant predictors of deep vein thrombosis. Conclusion: Most critically ill patients are in the potentially high risk group for deep vein thrombosis. However, patients who are elderly, obese or have leg edema should be closely assessed and more than one type of active prophylactic intervention should be provided.

• International Journal of Advanced Culture Technology
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• v.7 no.1
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• pp.8-13
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• 2019

Despite technical advances in healthcare, the rates of hospital-acquired pressure injury (HAPI) are still high although many are potentially preventable. The purpose of this study was to determine whether tree-based prediction modeling is suitable for assessing the risk of HAPI in ICU patients. Retrospective cohort study has been carried out. A decision tree model was constructed with Age, Weight, eTube, diabetes, Braden score, Isolation, and Number of comorbid conditions as decision nodes. We used RStudio for model training and testing. Correct prediction rate of the final prediction model was 92.4 and the Area Under the ROC curve (AUC) was 0.699, which means there is about 70% chance that the model is able to distinguish between HAPI and non-HAPI. The results of this study has limited generalizability as the data were from a single academic institution. Our research finding shows that the data-driven tree-based prediction modeling may potentially support ICU sensitive risk assessment for HAPI prevention.

• Journal of Korean Clinical Nursing Research
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• v.27 no.1
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• pp.77-84
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• 2021

Purpose: Malnutrition affects all age groups, but older adults are particularly more vulnerable to nutritional deficiencies. This study evaluated the age-specific factors affecting malnutrition in hospitalized older adults. Methods: A retrospective study was conducted on inpatient elderly people who received artificial nutrition from 2010 to 2017. Data of demographics, diagnosis, type of nutrition therapy, number of comorbidity, fall risk assessment, Acute Physiologic Assessment and Chronic Health Evaluation (APACHE) score, and intensive care unit admission were collected. Malnutrition was defined as a body mass index (BMI) of less than 18.5 kg/m². Patients were classified as the young-old (65~74 years old), the old-old (75~84 years old), or the oldest-old (85 years old or older). Results: A total of 7,130 older adults were included, and 4,028 patients were classified as the young-old, 2,506 into the old-old, and 596 into the oldest-old. Proportion of malnutrition was higher in the oldest-old compared to the other groups. In multivariate analysis, parenteral nutrition, alcohol, and high risk of falls were factors affecting malnutrition in all groups. Parenteral nutrition and alcohol in the young-old, high risk of falls in the old-old, and male sex in the oldest-old were the factors affecting malnutrition by the age group. Conclusion: Older age was the most significant factor affecting malnutrition. Specific strategies by age are needed to improve nutritional status in hospitalized older adults as influencing factors for malnutrition vary among different age groups.

• Journal of Korean Public Health Nursing
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• v.17 no.2
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• pp.317-332
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• 2003

This study attempts to investigate the relations between the types of communication, the job satisfaction. and the nursing performance of the staff nurses. The subjects of this study were the 114 nurses working in general wards, intensive care units, and the emergency rooms of the general hospital in Kyongbuk province. They were asked to answer the questionnaires as regards the types of communication and job satisfaction, and their performance of nursing, and these were evaluated by the head nurses, and their direct seniors. The data were collected for 10 days from the September 17 to 26, 2002. According to the purpose of the study, descriptive analysis, ANOVA. Pearson correlation coefficient, and stepwise multiple regression were applied for the data analysis using SPSS 10.0. The results are as follows : 1. The types of communication of staff nurses showed that the upward communication was $3.12\pm0.56$. the downward communication was $3.56\pm0.42$. the horizontal communication was $2.98\pm0.44$. and the informal communication was $2.59\pm0.49$. It showed that the most frequent communication was the downward communication. 2. In terms of the job satisfaction, there was significant difference according to the length of the period working for one ward (F=5.95, p=0.003), 3. The performance of nursing was significantly different according to the age (F=23.52, p=0.000), the working duration as a nurses (F=21.9, p=0.000), the types of nursing unit (F=5.33, p=0.002), and the working duration in present nursing unit (F=15.87, p=0.000). 4. In terms of communication type, the job satisfaction was associated with quality of the upward communication (F=6.23, p=0.003), the downward communication (F=5.78, p=0.004), and the horizontal communication (F=11.73, p=0.000) There were no association between the types of communication and the performance of nursing. 5. There was a positive correlation between the communication and the job satisfaction. And the downward communication (r=0.398) showed the greatest correlation with the job satisfaction. There was no statistically significant correlation between the communication and the performance of nursing. And the upward communication (r=-0.058) showed a negative, though not significant correlation with performance of nursing. 5. There was a positive correlation between the communication and the job satisfaction. And the downward communication (r=0.398) showed the greatest correlation with the job satisfaction. There was no statistically significant correlation between the communication and the performance of nursing. And the upward communication (r=-0.058) showed a negative. though not significant correlation with performance of nursing. 6. The stepwise multiple regression result showed that the downward communication accounts for $15.8\%$ (p=0,000) of the job satisfaction.

• Journal of Life Science
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• v.22 no.3
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• pp.312-317
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• 2012

The time-dependent effects of highly intensive exercise on the hematological properties of leukocytes, as well as $CD4^+$ and $CD8^+$ level changes as T-lymphocyte activation subsets and the cell death of lymphocytes in rats were studied in this research. Twenty, 60, and 120 min of highly intensive exercise was performed daily for 8 weeks. Total leukocyte counts in the blood of rats exercising for 20 min were elevated; they then decreased to less than the level of the control group up to 120 min. The patterns of lymphocyte level changes were directly influenced by exercise duration and the extents of alteration were similar to the total leukocytes counts. The levels of $CD4^+$ and $CD8^+$ in the blood of the exercising rats were not statistically different even when the exercise was continued for 120 min; thus, the exercise did not affect T-lymphocyte activation. Early- and late-stage lymphocyte apoptosis was not affected by the length of exercise, except that late-phase apoptosis was slightly increased at 120 min, suggesting that aging processes for lymphocyte apoptosis might be stimulated at that time. As the exercise time became longer, stimulated necrosis of lymphocytes was observed, so damage in lymphocytes and a potential loss of immunity might be presumed. The current observation suggests that long-term, highly intensive exercise might result in a loss of immunity that could be due to the damage of lymphocytes in terms of both their numbers and inflammation-related functions. The results suggest that under highly intensive exercise conditions, more than 20 min of exercise should not be suggested for health care purposes.

• Journal of Korean Academy of Nursing
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• v.28 no.2
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• pp.431-440
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• 1998

The purposes of this study were to determine the factors that influence job satisfaction for ICU nurses and to analyze group differences in job satisfaction based on the nurses' preference and perception of the work environment with an enhanced professional role. A total of 231 nurses who had been working in Intensive Care Units at least for 6 months at selected university hospitals participated in the study while head nurses or those with administrative positions were excluded. The study participants had an average of 33 months of clinical experience with an age range of 23 to 40 years. The data were analyzed by utilizing SPSSWIN and the results are as follows. 1) Hierarchical multiple regression analysis showed that work characteristics defined by Job characteristics theory and nurses' preference / perception of ideal work environment together explained 33% of variance in job satisfaction. Skill variety, task identity and autonomy as well as individual perception of work environment were significant variables for explaining job satisfaction. Job satisfaction was not significantly related to age, marital status, education, and clinical experience. 2) The groups classified by nurses' preference and perception of work environment were significantly different in their job satisfaction. Nurses with high preference and high perception showed significantly higher general and specific job satisfaction than other nurses. The nurses who showed high preference but perceived their work environment as not reflecting ideal job characteristics reported the lowest job satisfaction among the groups. In conclusion, the role of individual preference and perception of the work environment in explaining the relationship between the redesign of work environment and job satisfaction was supported by the study, The preferences of nurses to the innovative work characteristics should be considered in the process of enhancing job characteristics to lead job satisfaction and low turnover and ultimately to improve quality of care.

• Journal of the Korea Convergence Society
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• v.11 no.11
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• pp.443-450
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• 2020

The purpose of this study was to examine the inter-rater and intra-rater reliability of the oral mucosa pressure ulcer classification system based on the photographs. The study consisted of two stages; development and evaluation. In the developmental stage, 9 photographs of 82 were selected. In the evaluation stage, a total of 49 participants were invited web-based survey by e-mail. Cohen's weighted kappa and Krippendorff's alpha were used to define the inter-rater reliability. Nine photographs consisted of two, three, three, and one in normal, stage 1, stage 2, and stomatitis, respectively. The inter-rater reliabilities of wound care nurse specialist, intensive care nurse specialist, and dentist groups were 0.75, 0.70, and 0.78, respectively. The intra-rater reliability was 0.73. The inter-rater and intra-rater reliabilities of the oral mucosa pressure ulcer classification system showed substantially good agreement.