1.Evaluation of MRSASelect for Detecting Methicillin-Resistant Staphylococcus aureus from Surveillance Specimens.
Dongheui AN ; Hong Seon JEON ; Sookja PARK ; Heungsup SUNG ; Mi Na KIM
Korean Journal of Nosocomial Infection Control 2007;12(1):28-35
BACKGROUND: A rapid and sensitive surveillance culture has a pivotal role in infection control of methicillinresistant Staphylococcus aureus (MRSA). This study was aimed to compare the performance of MRSASelect (Bio-Rad, France) to that of mannitol salt agar containing 6 microgram/mL of oxacillin (MSA-OX) for detecting MRSA in surveillance cultures. METHOD: From May to June 2006, 86 nasal swabs and 21 sputum specimens were enrolled. All specimens were inoculated onto MRSASelect and MSA-OX, which were incubated for 2 days and 3 days, respectively, and colonies were read daily by a technologist. Pink colonies on MRSASelect and yellow colonies on MSA-OX were examined with Gram stain, Pastorex(R) Staph-plus (Bio-Rad) and mecA-PCR. After the final reading, both media were re-examined by a superviser. RESULTS: Of the 107 specimens cultured, 32 (29.9%) were positive for MRSA. Of these, 27 were detected by both media, one by MSA-OX only, and 4 by re-examination. The day-1 and day-2 sensitivities/specificities of MRSASelect were 78.1%/97.3% and 84.4%/97.3%, respectively, while those of MSA-OX were 53.1%/100% and 78.1%/92.1%, respectively. With MRSASelect, two more positives were detected at day 2, but their incubation was less than 18 hour at day 1. There were six false positive organisms detected: three Enterobacter spp., one Acinectobacter spp., and two coagulase-negative staphylococci (CNS). But, the two CNS grew on MSA-OX only. CONCLUSION: MRSASelect with 1-day incubation showed a sensitivity equivalent to and a specificity better than MSA-OX with 2-day incubation. MRSASelect should be a useful medium for MRSA surveillance when it is read after an incubation of 18-28 hours with the confirmatory Gram stain of screen-positives.
Agar
;
Enterobacter
;
Infection Control
;
Mannitol
;
Methicillin Resistance*
;
Methicillin-Resistant Staphylococcus aureus*
;
Oxacillin
;
Sensitivity and Specificity
;
Sputum
;
Staphylococcus aureus
2.A Case of Behcet's Disease Complicated by IgA Nephropathy.
Yang Seon RYU ; Chan Hong JEON ; So Young JIN
Journal of Rheumatic Diseases 2013;20(4):261-265
Behcet's disease (BD) is a rare, multisystemic disorder characterized by vasculitis. Although renal involvement rarely coexists with BD, several types of renal involvements have been reported: amyloidosis, glomerulonephritis and vascular involvement. Herein, we report a rare case of BD complicated with IgA nephropathy (IgAN). A 42-year-old woman visited the hospital due to joint pains and painful subcutaneous nodules. Based on her medical history of recurrent orogenital ulcers, arthritis, enteral ulcers, erythema nodosum-like skin lesions, and a positive pathergy test, we diagnosed her with BD. To evaluate proteinuria, we performed a renal biopsy. The patient was diagnosed with BD complicated with IgAN, and treated with a low dosage of steroid, colchicine, as well as angiotensin II type I receptor blockers. Although renal involvement in BD is rare, it is important to periodically perform renal function assessments in patients with BD involving abnormal urine results.
Adult
;
Angiotensin II Type 1 Receptor Blockers
;
Arthralgia
;
Arthritis
;
Biopsy
;
Colchicine
;
Erythema Nodosum
;
Female
;
Glomerulonephritis
;
Glomerulonephritis, IGA
;
Humans
;
Immunoglobulin A
;
Proteinuria
;
Skin
;
Ulcer
;
Vasculitis
3.Anesthesia for Robotic Repair of the Atrial Septal Defect : A case report.
Yong Seon CHOI ; Young Lan KWAK ; Dong Hyuk JEON ; Yong Woo HONG ; Han Ki PARK
Korean Journal of Anesthesiology 2007;52(3):371-375
Minimally invasive cardiac surgery including robotic technique has become increasingly popular over the last decade. The advantages of such technique include improved cosmesis and healing, and reduced stress response, hospital and intensive care unit stay, and transfusion requirements. Robot-assisted cardiac surgery requires prolonged one-lung ventilation to optimize exposure. Remote-access perfusion requires appropriate positioning of multiple catheters to establish cardiopulmonary bypass. Carbon dioxide insufflation into the thorax can cause hemodynamic instability and carbon dioxide embolism. Limited exposure of the heart may pose difficulties with management of arrhythmia, hemostasis, myocardial protection and de-airing at the end of surgery. Limited access due to robot manipulator would make rapid intervention for cardiopulmonary resuscitation difficult or impossible. This case report describes robot-asssisted atrial septal defect repair and discusses the anesthetic issues associated with minimally invasive cardiac surgery including robotic cardiac surgery.
Anesthesia*
;
Arrhythmias, Cardiac
;
Carbon Dioxide
;
Cardiopulmonary Bypass
;
Cardiopulmonary Resuscitation
;
Catheters
;
Embolism
;
Heart
;
Heart Septal Defects, Atrial*
;
Hemodynamics
;
Hemostasis
;
Insufflation
;
Intensive Care Units
;
One-Lung Ventilation
;
Perfusion
;
Thoracic Surgery
;
Thorax
4.Evaluation of MicroScan and Phoenix System for Rapid Identification and Susceptibility Testing Using Direct Inoculation from Positive BACTEC Blood Culture Bottles.
Jae Woo CHUNG ; Hong Seon JEON ; Heungsup SUNG ; Mi Na KIM
The Korean Journal of Laboratory Medicine 2009;29(1):25-34
BACKGROUND: Procedures for rapid identification and susceptibility testing by direct inoculation (DI) from positive blood culture bottles into an automated system have not been standardized. This study was purposed to evaluate DI from BACTEC 9240 blood culture system (BD, USA) into MicroScan (Dade Behring, USA) or Phoenix (BD, USA). METHODS: From May to June 2006, bacterial pellets from positive aerobic bottles showing gram-positive cocci (GPC) or gram-negative rods (GNR) of single morphology were directly inoculated to MicroScan PosCombo1A and NegCombo32 and to Phoenix PMIC/ID-107 and NMIC/ID-53. In addition, the automated instruments were also inoculated from subcultures (standard inoculations, SI). Species identification and susceptibilities were compared between DI and SI and between MicroScan and Phoenix. RESULTS: A total of 108, 104, and 78 specimens were tested with MicroScan, Phoenix, and both, respectively. When DI and SI were matched, 94.8% of GPC were correctly identified with MicroScan, compared to 80.7% with Phoenix, and 93.9% of GNR were correctly identified with MicroScan, compared to 95.7% with Phoenix. DI with MicroScan and Phoenix showed correct susceptibilities in 94.6% of 1,150 and 96.5% of 660 tests (with very major error [VME] of 1.1% and 1.1%), respectively, among GPC and in 94.4% of 942 and 96.3% of 781 tests (with VME of 0.6% and 0%), respectively, of GNR. Correlation of identification/susceptibilities between MicroScan and Phoenix using DI were 81.8%/98.0% for Staphylococcus aureus and 100.0%/95.6% for Escherichia coli. CONCLUSIONS: DI warrants a reliable method for identification and susceptibility testing of both GPC and GNR in MicroScan, and those of only GNR in Phoenix.
Automation
;
Bacterial Typing Techniques/instrumentation/*methods
;
Culture Media
;
Gram-Negative Bacteria/*classification/drug effects/isolation & purification
;
Gram-Negative Bacterial Infections/blood/*microbiology
;
Gram-Positive Bacterial Infections/blood/*microbiology
;
Gram-Positive Cocci/*classification/drug effects/isolation & purification
;
Humans
;
Microbial Sensitivity Tests/instrumentation/*methods
;
Reagent Kits, Diagnostic
;
Sensitivity and Specificity
5.A Case of Radiation Recall Myositis Induced by 5-FU and Cisplatin.
Yang Seon RYU ; Chan Hong JEON
Journal of Rheumatic Diseases 2012;19(1):59-62
Radiation recall phenomenon is an inflammatory reaction which occurs at a previously irradiated area after the administration of causative agents, especially anticancer drugs. Radiation recall mostly involves skin and rarely affects internal organs. We, hereby, report a rare case of radiation recall myositis. A 51-years-old man visited the hospital due to pain and weakness of the left thigh. He had been diagnosed with a skin metastasis of pancreatic adenocarcinoma, at the left thigh and treated with radiotherapy and subsequent combination chemotherapy of 5-FU and cisplatin. After the 5th cycle of chemotherapy, the patient developed pain and weakness localized at the previous radiation field. An MRI revealed myositis of left gluteus medius muscle. Muscle biopsy showed no malignant cells or signs of infection. He was diagnosed as having radiation recall myositis and treated with steroid and NSAID. Soon after, pain and weakness gradually improved. Although rare, a possibility of radiation recall myositis should be considered when a patient with history of radiotherapy has a myopathy.
Adenocarcinoma
;
Biopsy
;
Cisplatin
;
Drug Therapy, Combination
;
Fluorouracil
;
Humans
;
Muscles
;
Muscular Diseases
;
Myositis
;
Neoplasm Metastasis
;
Skin
;
Thigh
6.Pericardial Effusion:Report of Three Unusual Cases.
Chang Ho JEON ; Seon Young HONG ; Min Seob SONG ; Chul Ho KIM ; Yoon Ho HWANG ; Kwang Hyun CHO
Journal of the Korean Pediatric Cardiology Society 2002;6(1):97-103
Pericardial effusions can be developed by any form of pericarditis; infective pericarditis such as viral or bacterial infection and non-infective, inflammatory pericarditis related with generalized disease such as end-stage renal disease or connective tissue disease and irradiation, postpericardiectomy syndrome, drugs and non-inflammatory pericarditis by malignancy, hypothyroidism, trauma on chest. In children, pericardial effusions are usually related with viral infection, generalized disease or cardiac surgery. We experienced three unusual cases of pericadial effusion by Mycoplasma pneumonia infection, Rickettsia tsutsugamushi infection and post-thoracotomy effusive constrictive pericarditis.
Bacterial Infections
;
Child
;
Connective Tissue Diseases
;
Humans
;
Hypothyroidism
;
Kidney Failure, Chronic
;
Pericardial Effusion
;
Pericarditis
;
Pericarditis, Constrictive
;
Pneumonia, Mycoplasma
;
Rickettsia Infections
;
Thoracic Surgery
;
Thorax
7.Analysis of the association between necrotizing enterocolitis and transfusion of red blood cell in very low birth weight preterm infants.
Seon Yeong BAK ; Sihyoung LEE ; Jae Hong PARK ; Kyu Hee PARK ; Ji Hyun JEON
Korean Journal of Pediatrics 2013;56(3):112-115
PURPOSE: To investigate the association between necrotizing enterocolitis (NEC) and red blood cell transfusions in very low birth weight (VLBW) preterm infants. METHODS: We studied were 180 VLBW preterm infants who were admitted to the neonatal intensive care unit of CHA Gangnam Hospital from January of 2006 to December of 2009. The subjects were divided into 2 groups: an NEC group (greater than stage II on the modified Bell's criteria) and a control group (less than stage II on the modified Bell's critieria). We defined red blood cell transfusion before NEC diagnosis as the frequency of transfusion until NEC diagnosis (mean day at NEC diagnosis, day 18) in the NEC group and the frequency of transfusion until 18 days after birth in the control group. RESULTS: Of the 180 subjects, 18 (10%) belonged to the NEC group, and 14 (78%) of these 18 patients had a history of transfusion before NEC diagnosis. The NEC group received 3.1+/-2.9 transfusions, and the control group received 1.0+/-1.1 transfusions before the NEC diagnosis (P=0.005). In a multivariate logistic regression corrected for gestational age, Apgar score at 1 minute, the presence of respiratory distress syndrome, patent ductus arteriosus, premature rupture of membrane, disseminated intravascular coagulopathy and death were confounding factors. The risk of NEC increased 1.63 times (95% confidence interval, 1.145 to 2.305; P=0.007) with transfusion before the NEC diagnosis. CONCLUSION: The risk for NEC increased significantly with increased transfusion frequency before the NEC diagnosis.
Apgar Score
;
Ductus Arteriosus, Patent
;
Enterocolitis, Necrotizing
;
Erythrocyte Transfusion
;
Erythrocytes
;
Gestational Age
;
Humans
;
Infant, Newborn
;
Infant, Premature
;
Infant, Very Low Birth Weight
;
Intensive Care, Neonatal
;
Logistic Models
;
Membranes
;
Parturition
;
Rupture
8.Revised subjects of the Current Korean Oriental Pharmacists' Licensing Examination.
Jong Pil LIM ; Seon Pyo HONG ; Young Mi LEE ; Hoon JEON
Journal of Educational Evaluation for Health Professions 2007;4(1):4-
This study is designed to draw out new integrated subjects of the Korean Oriental Pharmacists' Licensing Examination (KOPLE). In 2004, for the revision of subjects, we have analyzed the curriculums of the Oriental Pharmacy department, the oriental pharmacist's (OP's) job description book, and the elementary items of KOPLE. We also examined the system of the Chinese Herb Pharmacists' Examination and other health personnel licensing examinations and studied the data of items and compared them with KOPLE. We heard the public opinion on the present KOPLE. We developed a subfield of 18 subjects, a middle category of 188 items, and a small category of 1,026 items. We proposed a new KOPLE that consists of three subjects: basic oriental pharmacy, applied oriental pharmacy, and laws and regulations.
Asian Continental Ancestry Group
;
Curriculum
;
Health Personnel
;
Humans
;
Job Description
;
Jurisprudence
;
Licensure*
;
Pharmacy
;
Public Opinion
;
Social Control, Formal
9.Comparisons of food intake between breast cancer patients and controls in Korean women.
Eun Young KIM ; Yeong Seon HONG ; Hae Myung JEON ; Mi Kyung SUNG ; Chung Ja SUNG
Nutrition Research and Practice 2007;1(3):237-242
The purpose of this study was to compare food intakes between Korean breast cancer patients and a healthy control group. We compared the intake of nutrients of 117 food items between Korean breast cancer patients (n=97) and age matched healthy controls (n=97). Nutrient intake was estimated using a quantitative food frequency questionnaire. The mean caloric intake of breast cancer patients and healthy controls was not significantly different. Breast cancer patients consumed significantly less fat and antioxidant nutrients such as vitamin A, retinol, beta-carotene, vitamin C and vitamin E when compared to the control subjects. Among the food items, the intake of eggs (p<0.01), legumes (p<0.05), vegetables (p<0.05), seasonings (p<0.001), and oils and fats (p<0.01) in breast cancer patients was significantly lower than that in the controls. These results suggest that Korean breast cancer patients consumed less amount of soy and vegetables, which are rich source of antioxidant nutrients and phytosterols. Thus, dietary guidance to increase intake of these foods may be beneficial in the prevention of breast cancer.
Ascorbic Acid
;
beta Carotene
;
Breast Neoplasms*
;
Breast*
;
Eating*
;
Eggs
;
Energy Intake
;
Fabaceae
;
Fats
;
Female
;
Humans
;
Oils
;
Ovum
;
Phytosterols
;
Surveys and Questionnaires
;
Seasons
;
Vegetables
;
Vitamin A
;
Vitamin E
;
Vitamins
10.Evaluation of the Phoenix System for the Detection of Methicillin-Resistent Staphylococcus aureus.
Kyung Ran JUN ; Hong Seon JEON ; Heungsup SUNG ; Mi Na KIM
Korean Journal of Clinical Microbiology 2006;9(1):58-63
BACKGROUND: We evaluated the BD Phoenix Automated Microbiology System (Phoenix) for its ability to detect methicillin resistant Staphylococcus aureus (MRSA) and compared the results to those obtained by the Clinical and Laboratory Standards Institute (CLSI) agar dilution method, a mecA gene PCR method, and the MicroScan WalkAway 96 System (MicroScan). METHODS: One hundred seventy S. aureus strains (Group I) isolated from blood and urine cultures were collected from eight university hospitals and 58 strains (Group II) including 20 blood isolates among Group I and 38 isolates from skin lesions of atopic patients were collected from Asan Medical Center. All 208 isolates were tested with Phoenix using PMIC/ID-53 panels, and the tests were repeated when the results were indeterminate. The results by Phoenix were compared to the susceptibility results obtained by reference methods: the CLSI method for oxacillin MIC for Group I strains, and a PCR assay method for detection of the mecA gene and MicroScan tests for oxacillin susceptibility for Group II strains. RESULTS: One hundred strains (58.8%) in Group I were MRSA and 28 strains (48.3%) were mecA positive in Group II. Compared to the CLSI method, Phoenix showed the sensitivity and specificity of 100% and MIC agreement of 99.4% for Group I strains. The level of agreement between Phoenix and MicroScan for oxacillin MIC and their interpretation were 98.3% and 100%, respectively, for Group II strains. Both MicroScan and Phenix failed to detect one mecA-positive strain: its MIC was shown as 2 microgram/mL twice by MicroScan and 2 microgram/mL twice and > 2 microgram/mL once by Phoenix. The frequency of the indeterminate results was 5.5% and the mean time to completion of the tests was 12.8 (10.2-16) hours in Phoenix. CONCLUSION: Phoenix showed a high level of sensitivity and specificity for the detection of MRSA with an excellent correlation with MicroScan. Further evaluation is required for detection of heterogeneous MRSA.
Agar
;
Chungcheongnam-do
;
Hospitals, University
;
Humans
;
Methicillin Resistance
;
Methicillin-Resistant Staphylococcus aureus
;
Oxacillin
;
Polymerase Chain Reaction
;
Sensitivity and Specificity
;
Skin
;
Staphylococcus aureus*
;
Staphylococcus*