1.Evaluation of copper alloys for reducing infection by methicillin resistant Staphylococcus aureus and vancomycin resistant Enterococcus faecium in intensive care unit and in vitro
Sung Im CHOI ; Mee Soo CHANG ; Taeeun KIM ; Kyung Hwa CHUNG ; Seongman BAE ; Sung-Han KIM ; Chan Jin YOON ; Young Kyoon KIM ; Jun Hee WOO
The Korean Journal of Internal Medicine 2021;36(5):1204-1210
Background/Aims:
Multi-drug resistant pathogens are increasing among healthcare-associated infections. It is well known that copper and copper alloys have antimicrobial activity. We evaluated the activity of copper against bacteria in a hospital setting in Korea.
Methods:
This study was conducted in a laboratory and medical intensive care unit (ICU). Methicillin resistant Staphylococcus aureus (MRSA) and vancomycin resistant Enterococcus faecium (VRE) were inoculated onto copper, copper alloy and stainless steel plates. After 24 hours of incubation, colony-forming units (CFU) were counted in the laboratory. Two similar rooms were chosen in the ICU; one room had copper-containing surface, and the other room contained items with a stainless steel surfaces. Items were sampled weekly for 8 weeks when the rooms were not crowded and when the rooms were busier with healthcare workers or visitors.
Results:
In vitro time-kill curves showed copper or, a copper alloy yielded a significant reduction in MRSA and VRE CFUs over 15 minutes. Upon exposure to stainless steel plates, CFUs were slowly reduced for 24 hours. In vivo, MRSA CFUs were lower in rooms with copper-containing surfaces compared with controls, both after cleaning and after patients had received visitors (p < 0.05). Analysis of VRE revealed similar results, but VRE CFUs from copper-containing surfaces of drug carts in the ICU did not decrease significantly.
Conclusions
Copper has antimicrobial activity and appears to reduce the number of multi-drug resistant microorganisms in a hospital environment. This finding suggests the potential of the use of copper fittings, instruments and surfaces in hospital.
2.Evaluation of copper alloys for reducing infection by methicillin resistant Staphylococcus aureus and vancomycin resistant Enterococcus faecium in intensive care unit and in vitro
Sung Im CHOI ; Mee Soo CHANG ; Taeeun KIM ; Kyung Hwa CHUNG ; Seongman BAE ; Sung-Han KIM ; Chan Jin YOON ; Young Kyoon KIM ; Jun Hee WOO
The Korean Journal of Internal Medicine 2021;36(5):1204-1210
Background/Aims:
Multi-drug resistant pathogens are increasing among healthcare-associated infections. It is well known that copper and copper alloys have antimicrobial activity. We evaluated the activity of copper against bacteria in a hospital setting in Korea.
Methods:
This study was conducted in a laboratory and medical intensive care unit (ICU). Methicillin resistant Staphylococcus aureus (MRSA) and vancomycin resistant Enterococcus faecium (VRE) were inoculated onto copper, copper alloy and stainless steel plates. After 24 hours of incubation, colony-forming units (CFU) were counted in the laboratory. Two similar rooms were chosen in the ICU; one room had copper-containing surface, and the other room contained items with a stainless steel surfaces. Items were sampled weekly for 8 weeks when the rooms were not crowded and when the rooms were busier with healthcare workers or visitors.
Results:
In vitro time-kill curves showed copper or, a copper alloy yielded a significant reduction in MRSA and VRE CFUs over 15 minutes. Upon exposure to stainless steel plates, CFUs were slowly reduced for 24 hours. In vivo, MRSA CFUs were lower in rooms with copper-containing surfaces compared with controls, both after cleaning and after patients had received visitors (p < 0.05). Analysis of VRE revealed similar results, but VRE CFUs from copper-containing surfaces of drug carts in the ICU did not decrease significantly.
Conclusions
Copper has antimicrobial activity and appears to reduce the number of multi-drug resistant microorganisms in a hospital environment. This finding suggests the potential of the use of copper fittings, instruments and surfaces in hospital.
3.Behavioral and Emotional Problems in Children with Nocturnal Enuresis: Results of a Multicenter Study.
Soo Churl CHO ; Jae Won KIM ; Min Sup SHIN ; Jun Won HWANG ; Sang Won HAN ; Kwan Hyun PARK ; Sang Don LEE ; Kyung Do KIM ; Kun Suk KIM ; Hong Jin SUH ; Yoo Sik LEE ; Jae Yong CHUNG ; Young Kyoon KIM ; Du Geon MOON ; Mi Kyung NAMGOONG ; Chang Hee HAN ; Won Yeol CHO ; Young Sik KIM ; Ki Soo PAI ; Jong Guk LEE ; Woo Young CHUNG ; Yee Jin SHIN
Journal of Korean Neuropsychiatric Association 2005;44(6):730-735
OBJECTIVES: The aim of this study was to examine the behavioral and emotional problems associated with nocturnal enuresis in Korean children. METHODS: Three hundred eighteen children with nocturnal enuresis, together with their parents, completed the Child Behavior Checklist (CBCL), Disruptive Behavior Disorder Scale according to DSM-IV (DBDS), Children's Depression Inventory (CDI), State-Trait Anxiety Inventory for Children (STAIC), and Piers-Harris Children's Self-Concept Scale (PHCSC). Ninety-three normal students were selected as the control group. RESULTS: Compared to the normal control group, the mean scores with regard to the withdrawn, social problems, attention problems, delinquent behavior, aggressive behavior, externalizing problems and total problems profiles were significantly higher in the nocturnal enuresis group according to the CBCL results. The nocturnal enuresis group also scored significantly higher in the ADHD and ODD profiles of the DBDS. The nocturnal enuresis group was more depressed and anxious than the control group according to the results of the CDI and STAI. The mean score of the PHCSC was significantly lower in the nocturnal enuresis group when compared to the normal control group. CONCLUSION: The results of this study suggest that children with nocturnal enuresis in Korea have clinically relevant behavioral and emotional problems. The findings support the link between nocturnal enuresis and psychopathology in Korean children.
Anxiety
;
Attention Deficit and Disruptive Behavior Disorders
;
Checklist
;
Child Behavior
;
Child*
;
Depression
;
Diagnostic and Statistical Manual of Mental Disorders
;
Humans
;
Korea
;
Nocturnal Enuresis*
;
Parents
;
Psychopathology
;
Social Problems
4.Efficacy and Safety of Entacapone in the Patients with Parkinson's Disease Experiencing Wearing-off Phenomenon: Multicenter Randomized Placebo-controlled Double Blind Study.
Joo Hyuk IM ; Joon Kyoon LEE ; Sun Ju CHUNG ; Beom S JEON ; Jin Hwan CHO ; Myung Sik LEE ; Eun Kyoung CHO ; Won Yong LEE ; Eun Ah LEE ; Jae Woo KIM ; Myoung C LEE
Journal of the Korean Neurological Association 2005;23(2):206-214
BACKGROUND: The purpose of this study was to assess the efficacy and safety of entacapone, a catechol-O-methyltransferase (COMT) inhibitor in Parkinson's disease (PD) patients with wearing-off phenomenon. METHODS: A total of 197 PD patients were included in this 2-month multi-center, randomized, placebo-controlled, double blind, parallel-group study. After a 2-week screening period, each patient was randomly allocated to receive either entacapone (n=98) or placebo (n=99) as an adjunct to levodopa. The efficacy was evaluated with the changes of "on" and "off" time percentage while awake, the reduction of the levodopa dose, Unified Parkinson's Disease Rating Scale (UPDRS), and the clinical global impression (CGI) by the examiner. RESULTS: The percentage of "on" time increased by 9.4 +/- 18.0% in the entacapone group, 7.4 +/- 15.6% in the placebo group. The percentage of "off" time was reduced by 8.6 +/- 16.9% in the entacapone group, 6.6 +/- 18.2% in the placebo group. These parameters did not show a statistical significance between the two groups. However, the levodopa dose was significantly reduced in the entacapone group (51.6 +/- 154.5 mg/day) compared with the placebo group (0.7 +/- 130.0 mg/day) (p=0.009). The total and motor scores of the UPDRS were significantly decreased in the entacapone group (p=0.039, p=0.017, respectively). The most common adverse drug reactions in the entacapone group were urine discoloration (22%), dyskinesia (13%), dizziness (7%). CONCLUSIONS: Entacapone was a safe and well-tolerated drug. Although the changes of "on" and "off" time were not significant, entacapone showed an overall significant beneficial effect in the PD patients with wearing-off phenomenon.
Catechol O-Methyltransferase
;
Dizziness
;
Double-Blind Method*
;
Drug-Related Side Effects and Adverse Reactions
;
Dyskinesias
;
Humans
;
Levodopa
;
Mass Screening
;
Parkinson Disease*
5.Postoperative Evaluation of Displaced Intra-articular Calcaneal Fractures by Computed Tomography.
Woo Sik KIM ; Kwang Kyoon KIM ; Whan Yong CHUNG ; Woo Suk LEE ; Yong Chan KIM ; Taek Soo JEON ; Dae Hwan KIM ; Seong Jin CHO ; Chul Mok HWANG
Journal of the Korean Fracture Society 2004;17(3):249-256
PURPOSE: The purpose of the present study was to define the factors that affect the treatment and clinical result of displaced calcaneal fracture with use of the pre- operative and final follow-up computed tomography scanning. MATERIALS AND METHODS: Present study included the 17 patients(18 feet) whom we performed surgery for displaced intra-articular calcaneal fracture at our institution between March 2000 and March 2002 and had a minimum follow-up of 12 months. For all patients, the Bohler's angle and posterior facet incongruity were measured with computed tomography pre- and post-operatively. The Creighton-Nebraska Health Foundation Assessment Scale for Fractures of the Calcaneus (CN scale) was used to evaluate the clinical results. RESULTS: Of all eighteen fractures, the clinical results were excellent in three (16.6%), good in six (33.3%), fair in six (33.3%), and poor in three (16.6%). The Bohler's angle averaged 21degrees, 15degrees, 27degrees, 25degrees at final follow-up in each above clinical result group. The step-off averaged 1.0, 1.6, 3.9 and 6.0 mm and the average range of motion of the subtalar joint at final follow-up were 85, 76, 60 and 45% of normal. CT evaluation showed intra-articular screws in the posterior subtalar joint in three (16.6%) of the eighteen fractures but their average clinical result was good (80.3 points). CONCLUSION: The restoration of the congruity and range of motion of posterior subtalar joint are considered important factor that affect clinical result.
Calcaneus
;
Follow-Up Studies
;
Humans
;
Range of Motion, Articular
;
Subtalar Joint
6.A Case of Isoniazid Induced Acute Pancreatitis.
Byung Ha CHUNG ; Hae Seong NAM ; Jung Hyun KWON ; So Hi IM ; Sun Hee PARK ; Jin Woo KIM ; Seung Joon KIM ; Sook Young LEE ; Young Kyoon KIM ; Sung Hak PARK
Tuberculosis and Respiratory Diseases 2004;56(4):411-414
Isoniazid is a first-line drug in the treatment of tuberculosis. A variety of adverse reactions of isoniazid have been reported. These include hepatitis, peripheral neuropathy, skin rashes, neurologic disturbances and hematologic alterations. Among these, acute pancreatitis due to isoniazid is very rare. We report a case of acute pancreatitis due to isoniazid confirmed by rechallenge test with review of some literatures.
Exanthema
;
Hepatitis
;
Isoniazid*
;
Pancreatitis*
;
Peripheral Nervous System Diseases
;
Rifampin
;
Tuberculosis
7.Influence of Total Ginseng Saponin on Contractile Responses of Vasoconstrictors in the Isolated Rat Aorta.
Choon Hae CHUNG ; Soon Pyo HONG ; Seong Ho CHO ; Jang Gwon HONG ; Yong Kyoon LEE ; Geon Han LIM ; Won Ho YANG ; Ho Jin YOU ; Seong Chang WOO ; Cheol Hee CHOI ; Dong Yoon LIM
Korean Circulation Journal 1999;29(9):976-984
BACKGROUND: It has been known that Ginseng extract causes the hypotensive action while it rather produces the hypertensive action. Some studies have suggested that Ginseng extract causes a biphasic response on blood pressure, namely, transient fall followed by prolonged elevation. It has been also shown that administration of Korean Red Ginseng powder has no effect on blood pressure in normotensive and hypertensive rats. The present study was designed to examine the effect of total Ginseng saponin on contractile responses of vasoconstrictors in the rat aorta and to establish the mechanism of its action. METHODS: The ring segment of aorta was mounted in a muscle bath filled with oxygenated Krebs solution for the measurement of isometric tension. After the equilibration period, under the presence of total Ginseng saponin, isometric tension induced by some vasoconstrictors were observed and compared to the control responses. The data were expressed as % of the control tension. RESULTS: Phenylephrine (an adrenergic alpha1-receptor agonist) and high potassium (a membrane depolarizing agent) caused greatly contractile responses in the rat aorta, respectively. However, in the presence of total ginseng saponin (600 g/ml), the contractile responses of phenylephrine (10(-6) and 10(-5) M) and high potassium (3.5 x 10(-2) and 5.6 x 10(-2) M) were markedly potentiated whereas prostglandin F2alpha(5 x 10(-6) M)-induced contractile responses was not affected. The contractile responses induced by phenylephrine (10(-5) M) and high potassium (3.5 x 10(-2) M) even under the presence of total ginseng saponin (600 g/ml) were greatly inhibited by the pretreatment of nicardipine (10(-6) M), a calcium channel blocker. CONCLUSION: Taken together, these experimental results suggest that total ginseng saponin can enhance the contractile responses evoked by stimulation of adrenergic alpha1-receptor and the membrane depolarization in the isolated rat aortic strips, which seems to be associated to calcium influx.
Animals
;
Aorta*
;
Baths
;
Blood Pressure
;
Calcium
;
Calcium Channels
;
Membranes
;
Nicardipine
;
Oxygen
;
Panax*
;
Phenylephrine
;
Potassium
;
Rats*
;
Saponins*
;
Vasoconstriction
;
Vasoconstrictor Agents*
8.Development of a Cognitive Rehabilitation Program for Patients with Schizophrena.
Man Hong LEE ; Hee Sang LEE ; Hyun Sang CHO ; Suk Kyoon AN ; Myoung Ho HYUN ; Tae Yong KIM ; Jang Woo KIM ; Chung Shik CHOI ; Yeon Hee LEE ; Seon Mi SONG ; Kae Joon YOO
Journal of Korean Neuropsychiatric Association 1999;38(2):375-388
OBJECTS: The purpose of this study was to investigate the effects of cognitive differentiation training program-Korean version(a training program of attention and conceptual abilities) on cognitive function, psychopathology and problem solving skills in patients with schizophrenia. METHODS: A total of patients diagnosed as schizophrenia using DSM-IV were randomly assigned to 2 groups. The training group went through a total of 22 sessions of cognitive differentiation training (60min/sessionX2sessions/wkX11wks). The attention-placebo control group received psychoeducation program during the same period. Arithmetic, vocabulary, similarities, picture completion of Wechsler Adult Intelligence Scale-Korean version, Positive and Negative Syndrome Scale, and Social Problem Solving Scales were administered to all patients, both before and after the training program. RESULTS: In the arithmetic scores(F=6.35, af=1, p=0.018) of Wechsler Adult Intelligence Scale-Korean version, and total scores(F=6.35, af=1, p=0.018) and problem solving skill scale scores (F=4.88, af=1, p=0.036) of social problem solving scale, interaction effects of training was significant. CONCLUSION: Our findings suggest that cognitive differentiation training program-Korean version is effective on improving auditory attention and problem solving skills in patients with schizophrenia.
Adult
;
Diagnostic and Statistical Manual of Mental Disorders
;
Education
;
Humans
;
Intelligence
;
Problem Solving
;
Psychopathology
;
Rehabilitation*
;
Schizophrenia
;
Social Problems
;
Vocabulary
;
Weights and Measures
9.Religious attitudes of psychiatric inpatients.
Journal of Korean Neuropsychiatric Association 1993;32(3):415-429
No abstract available.
Humans
;
Inpatients*
10.A case of cognitive and behavioral disturbances following herpes simplex encephalitis.
Chul LEE ; Woo Kyoon CHUNG ; In Ho PAIK ; Moon Won KANG
Journal of Korean Neuropsychiatric Association 1993;32(1):122-126
No abstract available.
Encephalitis, Herpes Simplex*
;
Herpes Simplex*

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