1.The Effect of CO2 on Body Temperatures during Cooling and Rewarming of Cardiopulmonary Bypass.
Si Oh KIM ; Hyun Ho SHON ; Keon Ho DO ; Woon Yi BAEK
Korean Journal of Anesthesiology 1998;35(5):958-964
Background: It is well known that the addition of CO2 gas during cardiopulmonary bypass (CPB) can increase cerebral blood flow (CBF). In this study, we tried to find whether the increase of CBF by CO2 gas could be expressed on the measurement of body temperatures. Methods: This study included 22 adult patients who underwent CPB with moderate hypothermia and were assigned randomly to two groups by adding CO2 gas (CO2 group and Air group). We measured each tympanic (TM), nasopharyngeal (NP), oral, forehead, finger, rectal and CPB arterial line temperatures of CPB circuit for 20 times during cooling in every one minute for 20 minutes and during rewarming every two minutes for 40 minutes. Results: During cooling and rewarming, the TM, NP and oral temperatures changed more rapidly than the rectal and finger temperatures. In TM temperature, as time changed, the percent changes of temperature varied more prominently in the CO2 gas group than in the Air group. The statistical differences were significant especially during 13 minutes to 20 minutes in cooling and 8 minutes to 20 minutes during rewarming. Conclusion: From this data, we can postulate the effect of CO2 gas on CBF indirectly by measuring several sites of body temperatures.
Adult
;
Body Temperature*
;
Carbon Dioxide
;
Cardiopulmonary Bypass*
;
Fingers
;
Forehead
;
Humans
;
Hypothermia
;
Rewarming*
;
Vascular Access Devices
2.Factors Influencing Depression Among Nurses in General Hospitals During the COVID-19 Pandemic: Focus on Job Demands, Post-traumatic Stress, and Social and Organizational Support
Journal of Korean Academy of Nursing Administration 2024;30(3):306-317
Purpose:
This study aimed to understand the relationships between depression, post-traumatic stress, job demands, and social and organizational support among nurses working at general hospitals during the COVID-19 pandemic and to identify the factors influencing depression.
Methods:
Data were collected from 240 nurses using a self-reported questionnaire between April 28 and May 7, 2023. Data were analyzed using descriptive statistics, an independent t-test, one-way ANOVA, Scheffé’s test, Pearson's correlation coefficient, and multiple regression.
Results:
The mean scores for depression and post-traumatic stress were 15.49 and 17.90, respectively. Approximately 43% nurses experienced depression. Depression was positively related to job demands and post-traumatic stress and negatively related to social and organizational support. Multiple regression showed that post-traumatic stress (β=.33, p<.001), social support (β=-.30, p<.001), and job demands (β=.21, p<.001) explained 26.4% of the variance for nurses’ depression.
Conclusion
These findings indicate that efforts are needed to mitigate depression and post traumatic stress among nurses, even after the COVID-19 pandemic. Programs that can enhance social support and reduce post-traumatic stress and job demands are needed to prevent and decrease depression. In particular, hospitals and the government must prepare for national disasters, such as new infectious diseases, to reduce job demands.
3.Factors Influencing Depression Among Nurses in General Hospitals During the COVID-19 Pandemic: Focus on Job Demands, Post-traumatic Stress, and Social and Organizational Support
Journal of Korean Academy of Nursing Administration 2024;30(3):306-317
Purpose:
This study aimed to understand the relationships between depression, post-traumatic stress, job demands, and social and organizational support among nurses working at general hospitals during the COVID-19 pandemic and to identify the factors influencing depression.
Methods:
Data were collected from 240 nurses using a self-reported questionnaire between April 28 and May 7, 2023. Data were analyzed using descriptive statistics, an independent t-test, one-way ANOVA, Scheffé’s test, Pearson's correlation coefficient, and multiple regression.
Results:
The mean scores for depression and post-traumatic stress were 15.49 and 17.90, respectively. Approximately 43% nurses experienced depression. Depression was positively related to job demands and post-traumatic stress and negatively related to social and organizational support. Multiple regression showed that post-traumatic stress (β=.33, p<.001), social support (β=-.30, p<.001), and job demands (β=.21, p<.001) explained 26.4% of the variance for nurses’ depression.
Conclusion
These findings indicate that efforts are needed to mitigate depression and post traumatic stress among nurses, even after the COVID-19 pandemic. Programs that can enhance social support and reduce post-traumatic stress and job demands are needed to prevent and decrease depression. In particular, hospitals and the government must prepare for national disasters, such as new infectious diseases, to reduce job demands.
4.Factors Influencing Depression Among Nurses in General Hospitals During the COVID-19 Pandemic: Focus on Job Demands, Post-traumatic Stress, and Social and Organizational Support
Journal of Korean Academy of Nursing Administration 2024;30(3):306-317
Purpose:
This study aimed to understand the relationships between depression, post-traumatic stress, job demands, and social and organizational support among nurses working at general hospitals during the COVID-19 pandemic and to identify the factors influencing depression.
Methods:
Data were collected from 240 nurses using a self-reported questionnaire between April 28 and May 7, 2023. Data were analyzed using descriptive statistics, an independent t-test, one-way ANOVA, Scheffé’s test, Pearson's correlation coefficient, and multiple regression.
Results:
The mean scores for depression and post-traumatic stress were 15.49 and 17.90, respectively. Approximately 43% nurses experienced depression. Depression was positively related to job demands and post-traumatic stress and negatively related to social and organizational support. Multiple regression showed that post-traumatic stress (β=.33, p<.001), social support (β=-.30, p<.001), and job demands (β=.21, p<.001) explained 26.4% of the variance for nurses’ depression.
Conclusion
These findings indicate that efforts are needed to mitigate depression and post traumatic stress among nurses, even after the COVID-19 pandemic. Programs that can enhance social support and reduce post-traumatic stress and job demands are needed to prevent and decrease depression. In particular, hospitals and the government must prepare for national disasters, such as new infectious diseases, to reduce job demands.
5.Factors Influencing Depression Among Nurses in General Hospitals During the COVID-19 Pandemic: Focus on Job Demands, Post-traumatic Stress, and Social and Organizational Support
Journal of Korean Academy of Nursing Administration 2024;30(3):306-317
Purpose:
This study aimed to understand the relationships between depression, post-traumatic stress, job demands, and social and organizational support among nurses working at general hospitals during the COVID-19 pandemic and to identify the factors influencing depression.
Methods:
Data were collected from 240 nurses using a self-reported questionnaire between April 28 and May 7, 2023. Data were analyzed using descriptive statistics, an independent t-test, one-way ANOVA, Scheffé’s test, Pearson's correlation coefficient, and multiple regression.
Results:
The mean scores for depression and post-traumatic stress were 15.49 and 17.90, respectively. Approximately 43% nurses experienced depression. Depression was positively related to job demands and post-traumatic stress and negatively related to social and organizational support. Multiple regression showed that post-traumatic stress (β=.33, p<.001), social support (β=-.30, p<.001), and job demands (β=.21, p<.001) explained 26.4% of the variance for nurses’ depression.
Conclusion
These findings indicate that efforts are needed to mitigate depression and post traumatic stress among nurses, even after the COVID-19 pandemic. Programs that can enhance social support and reduce post-traumatic stress and job demands are needed to prevent and decrease depression. In particular, hospitals and the government must prepare for national disasters, such as new infectious diseases, to reduce job demands.
6.Clinical analysis of 200 renal transplantations.
Sung Uhn BAEK ; Sung Do LEE ; Jae Kwan SEO ; Sang Ho YANG ; Si Rhae LEE ; Hyun Yul RHEW
Journal of the Korean Surgical Society 1991;41(2):203-214
No abstract available.
Kidney Transplantation*
7.A Study of Personality Factor and Defense Mechanism in Panic Disorder Patients.
Jin Hyun SHIM ; Sang Bin BAEK ; Young Chul SHIN ; Kang Seob OH ; Kyung Sun NOH ; Si Hyung LEE
Journal of Korean Neuropsychiatric Association 1999;38(6):1315-1323
OBJECTIVES: The purpose of this study was to evaluate the characteristics of personality factor and defense mechanism and relationship with depression and social disability. METHODS: Study subjects consisted of 35 panic disorder patients diagnosed with the criteria of DSM-IV. Data were collected through Sixteen Personality Factor Questionnaire, Ehwa Diagnostic Test of Defense Mechanism, Beck Depression Inventory and Sheehan Disability Scale. Statistics employed for the analyses were Pearson correlation and independent sample t-test. RESULTS: In personality factors and defense mechanisms, there were no definitely abnormal range of scores. But, among personality factors, tension/anxiety factor scored high and unstableness/stableness, shyness/boldness and praxernia/atunia were in low range of score. In defense mechanism, somaticzation and acting-out scored high and humor, suppression, altruism, avoidance and rationalization scored low. The mean BDI score was 18.25+/-9.97. The mean score of SDS were 4.88+/-3.11 in work category and 4.57+/-2.92 in social/leasure category. Male patients were significantly correlated with guit-proneness and atuia in personality factor and passive- aggressiveness, projection, denial and show-off in defense mechanism, compared with female patients (p<0.05). The patients' age was correlated with low intelligence in persolity factor and dissociation and anticipation in defense mechanism. It was negatively correlated with show-off (p<0.05). The BDI score was correlated with low intelligence, superego, unstableness, self-conflict, high superego and atunia in personality factor and dissociation and somatization in defense mechanism (p<0.05). There was a significant relationship between BDI score and SDS work category (p<0.05). CONCLUSION: Panic disorder patients show high score of tension/anxiety factor and they frequently use neurotic defense style like somatization. The depressive symptom, which depends on symptom severity, appears to have influence on work category and to cause social disability.
Altruism
;
Defense Mechanisms
;
Denial (Psychology)
;
Depression
;
Diagnostic and Statistical Manual of Mental Disorders
;
Diagnostic Tests, Routine
;
Female
;
Humans
;
Intelligence
;
Male
;
Panic Disorder*
;
Panic*
;
Surveys and Questionnaires
;
Rationalization
;
Superego
8.Effect of normal saline dilution on prevention of rocuronium injection pain.
Sang Ho KIM ; Si Young OK ; Young Hee BAEK ; Hyun Jun PARK
Anesthesia and Pain Medicine 2009;4(3):250-253
BACKGROUND:Intravenous injection of rocuronium produces intense discomfort at the site of injection in 50?80% of conscious patients.Many trials have sought to lessen the injection pain.The present study evaluated the incidence and severity of pain associated with intravenous injection of rocuronium in conscious patients, and determined the efficacy of different doses of 50 mg rocuronium diluted in 0.9% NaCl at minimizing injection pain. METHODS:Sixty healthy patients scheduled for general anesthesia were randomly divided into three groups (n = 20 each) for injection of 10 ml (NS 10), 20 ml (NS 20), or 40 ml (NS 40) of the NaCl-diluted rocuronium. Before induction, the incidence of pain was ascertained and its severity during subsequent rocuronium injection was classified as none, mild, moderate, severe, very severe. RESULTS:The incidence and the severity of pain were significantly lower in the NS 40 group than in the NS 10 group (P< 0.05). Pain severity was mild or absent for all NS 20 and NS 40 patients. CONCLUSIONS:Rocuronium diluted with NaCl effectively reduces injection pain in a dose dependent manner. s
Androstanols
;
Anesthesia, General
;
Humans
;
Incidence
;
Injections, Intravenous
9.Effect of normal saline dilution on prevention of rocuronium injection pain.
Sang Ho KIM ; Si Young OK ; Young Hee BAEK ; Hyun Jun PARK
Anesthesia and Pain Medicine 2009;4(3):250-253
BACKGROUND:Intravenous injection of rocuronium produces intense discomfort at the site of injection in 50?80% of conscious patients.Many trials have sought to lessen the injection pain.The present study evaluated the incidence and severity of pain associated with intravenous injection of rocuronium in conscious patients, and determined the efficacy of different doses of 50 mg rocuronium diluted in 0.9% NaCl at minimizing injection pain. METHODS:Sixty healthy patients scheduled for general anesthesia were randomly divided into three groups (n = 20 each) for injection of 10 ml (NS 10), 20 ml (NS 20), or 40 ml (NS 40) of the NaCl-diluted rocuronium. Before induction, the incidence of pain was ascertained and its severity during subsequent rocuronium injection was classified as none, mild, moderate, severe, very severe. RESULTS:The incidence and the severity of pain were significantly lower in the NS 40 group than in the NS 10 group (P< 0.05). Pain severity was mild or absent for all NS 20 and NS 40 patients. CONCLUSIONS:Rocuronium diluted with NaCl effectively reduces injection pain in a dose dependent manner. s
Androstanols
;
Anesthesia, General
;
Humans
;
Incidence
;
Injections, Intravenous
10.Effects of Pine Needle Butanol Fraction on Acetylcholine (ACh) and Its Related Enzymes in Brain of Rats.
Jin Ho CHOI ; Dae Ik KIM ; Si Hyang PARK ; Nam Ju KIM ; Seung Jin BAEK ; Koon Ja KIM ; Hyun Sook KIM
The Korean Journal of Nutrition 2004;37(3):176-181
This study was designed to investigate the effects of buthanol (BuOH) fraction of pine (Pinus densiflora Sieb et Zucc) needle on cholesterol and lipofuscin (LF) accumulations, acetylcholine (ACh) and its related enzyme activities such as choline acetyltransferase (CAhT) and acetylcholinesterase (AChE), and monoamone oxidase-B (MAO-B) activity, which destroyed the catecholamine-related neurotransmitters in brain membranes of Sprague-Dawley (SD) rats. Male SD rats were fed basic diets (control group) or experimental diets (BuOH-25, BuOH-50 and BuOH-100) for 45 days. Cholesterol accumulations in mitochondria and microsomes were significantly inhibited (about 14 - 17% and 23 - 34%, respectvely) in BuOH-50 and BuOH-100 groups, whereas LF levels were significantly inhibited (about 10 - 14%) in BuOH-50 and BuOH-100 groups compared with control group. ACh levels and ChAT activities were significantly increased (about 11 - 17% and 11 - 23%, respectively) in membranes of BuOH-50 and BuOH-100 groups compared with control group. AChE activities were significantly increased (about 14 - 17%) in membranes of BuOH-50 and BuOH-100 groups. There was no significant difference in MAO-B activities between control and experimental diet groups. The results suggest that butanol fraction of pine needle may play an effective role in an antiaging effect and improving a learning and memory impairments.
Acetylcholine*
;
Acetylcholinesterase
;
Animals
;
Brain*
;
Cholesterol
;
Choline O-Acetyltransferase
;
Diet
;
Humans
;
Learning
;
Lipofuscin
;
Male
;
Membranes
;
Memory
;
Microsomes
;
Mitochondria
;
Monoamine Oxidase
;
Needles*
;
Neurotransmitter Agents
;
Rats*
;
Rats, Sprague-Dawley