1.The Effects of the Preoperative Serum Homocysteine Level on Restenosis after Infraninguinal Bypass Surgery or Endovascular Surgery for Peripheral Arterial Disease.
Journal of the Korean Society for Vascular Surgery 2011;27(1):14-18
PURPOSE: Hyperhomocysteinemia is accepted as an independent risk factor for peripheral arterial disease (PAD). The purpose of this study is to evaluate the correlation between the preoperative plasma homocysteine concentration and restenosis after therapeutic revascularization. METHODS: We retrospectively analyzed the clinical records of 58 consecutive patients (they were confined to Trans Atlantic Inter-Society Consensus [TASC] type C & D) among 103 patients who were diagnosed as having infrainguinal PAD and who were treated with bypass surgery or endovascular surgery from July 2003 to July 2009. We analyzed the effect of several factors such as gender, age, the plasma lipid profile and the protein C, protein S, fibrinogen, C-reactive protein, diabetes mellitus, hypertension, ankle-brachial index (ABI), and homocysteine levels, which are all considered to be risk factors for restenosis. Multivariate and univariate analyses were performed to assess the effect of possible confounders. RESULTS: The subjects were 50 men and 8 women (mean age: 63.8+/-10.9). There were 33 (56.9%) cases of bypass surgery and 25 (43.1%) cases of endovascular surgery. Of them, 19 cases (32.8%) showed restenosis after revascularization. In the patients with restenosis, 18 cases (94.7%) showed a preoperative high plasma homocysteine level and 1 case (5.2%) showed a normal level. A lower ABI and hyperhomocysteinemia were significantly more common in the patients with restenosis (P=0.025, P<0.001). There were no significant differences of the other factors, except for the plasma homocysteine level on multivariate analysis (P=0.001). CONCLUSION: We can regard the preoperative hyperhomocysteinemia level as a predictive marker of restenosis after revascularization. Special attention may need to be given to the patients who have a lower preoperative ABI and hyperhomocysteinemia after revascularization.
Ankle Brachial Index
;
C-Reactive Protein
;
Consensus
;
Diabetes Mellitus
;
Female
;
Fibrinogen
;
Homocysteine
;
Humans
;
Hyperhomocysteinemia
;
Hypertension
;
Male
;
Multivariate Analysis
;
Peripheral Arterial Disease
;
Plasma
;
Protein C
;
Protein S
;
Retrospective Studies
;
Risk Factors
2.A Survey on the Attitudes toward Premature Infants.
Journal of the Korean Pediatric Society 1998;41(3):307-314
PURPOSE: We studied the attitudes of general population and medical personnels toward premature infants to establish basic data about prematurity. METHODS: Ten students from Yeungnam University College of Medicine conducted field surveys on the general population at residential and commercial districts, and on medical personnels at private local clinics and hospitals in Taegu with a prepared questionaire from July 25, 1996 to August 20, 1996. Statistical analysis was done by Chi square test using SPSS computerized program. RESULTS: The respondents who have never heard about premature babies are 4.6% of 502 total respondents. Sixty percent of the respondents acquired information about prematurity from mass media (television, newspaper, radio), and television was the most frequentl among them (60%). Because the percentage of respondents who know the correct meaning of prematurity is lower in those who acquired information from mass media than those from medical personnels or books on childcare, it was observed that information about prematurity is delivered inaccurately through mass media. Fifty percent of the respondents regard premature babies as handicapped or retarded babies, sixty-five percent of the respondents want their babies, not to be treated not because of economical burden but possibilities of residual handicap or death. CONCLUSION: Delivery accurate information about recent advances in intensive care for premature babies through mass media, i.e. television, newspaper and radio, is necessary to inform the general population and to help parents or family members of a premature baby participate in making a decision on whether to continue treatment for the baby or not.
Daegu
;
Surveys and Questionnaires
;
Disabled Persons
;
Ethics
;
Humans
;
Infant, Newborn
;
Infant, Premature*
;
Critical Care
;
Mass Media
;
Periodicals
;
Parents
;
Television
3.Characteristics of Trigeminal Evoked Potential and It's Pathway in the Rat.
Se Hyuk KIM ; Chun Zhi ZHAO ; Oh Kyoo KWON ; Bae Hwan LEE ; Yong Gou PARK ; Sang Sup CHUNG
Journal of Korean Neurosurgical Society 2000;29(8):985-994
No abstract available.
Animals
;
Evoked Potentials*
;
Rats*
4.A Follow up Study of Cognitive Dysfunction after High Voltage Electric Injury: a F-18 FDG-PET Study.
Oh Dae KWON ; Jae Hyuk KWAK ; Jae Han PARK
Journal of the Korean Neurological Association 2007;25(4):544-548
We report a 43-year-old male who suffered cognitive dysfunction after an electric injury. He underwent evaluation for cognitive dysfunction and cerebral glucose hypometabolism at 1 week and 6 months. In contrast to the progressive decline of frontal lobe functions and visuospatial functions, memory and depressive mood were improved. SPM99 showed hypometabolic areas in the frontal and occipital lobes which were widened. Moreover new cingulate lesions appeared. This illustrates that the progression of derangement of cerebral glucose metabolism is correlated with neuropsychological impairment.
Adult
;
Electric Injuries*
;
Follow-Up Studies*
;
Frontal Lobe
;
Glucose
;
Humans
;
Male
;
Memory
;
Metabolism
;
Neuropsychology
;
Occipital Lobe
;
Positron-Emission Tomography
5.Distribution of HLA-A, B, C Allele and Haplotype Frequencies in Koreans.
Sang Hyun HWANG ; Heung Bum OH ; Jin Hyuk YANG ; Oh Joong KWON ; Eun Soon SHIN
The Korean Journal of Laboratory Medicine 2004;24(6):396-404
BACKGROUND: The HLA system is known to be the most polymorphic gene cluster in the human genome. HLA allele and haplotype distribution varies widely among different ethnic groups. In this study, we examined the frequency of HLA class I alleles and haplotypes in 309 healthy Koreans. METHODS: We typed HLA-A, -B, and -C genes at the allelic level in 109 unrelated Korean individuals using a sequence-based typing. With the additional data of 200 healthy Koreans from dbMHC (http: //www.ncbi.nlm.nih.gov/mhc/), allele and haplotype frequencies were estimated by the maximum likelihood method. Serological typing results of 49 individuals were compared with the results highly resolved. RESULTS: A total of 22 HLA-A, 41 HLA-B, and 21 HLA-C alleles were found in this study. Alleles showing frequencies of more than 10% in each HLA locus were A*2402 (22.5%), A*0201 (15.7%), A*3303 (14.4%), A*1101 (11.0%), B*5101 (12.1%), Cw*0102 (18.8%), and Cw*1402 (10.2%). The most common A-B-C haplotypes at a frequency of more than 3% were A*3303-B*5801-Cw*0302 (5.2%), A*2402-B*5101-Cw*1402 (4.5%), A*1101-B*1501-Cw*0401 (4.3%), A*3303-B*4403-Cw*1403 (4.0%), A*3001-B*1302-Cw*0602 (3.7%), and A*0207-B*4601-Cw*0102 (3.2%). Misassignment of HLA-C antigen by serotyping was detected in 11 (22.4%) of 49 individuals. CONCLUSIONS: Our results will be useful as a basic data for studies on anthropology, disease association, and bone marrow transplantation. Misidentification of HLA-C by serotyping is so high that it would be desirable to perform a DNA typing especially in unrelated bone marrow transplantation.
Alleles*
;
Anthropology
;
Bone Marrow Transplantation
;
DNA Fingerprinting
;
Ethnic Groups
;
Genome, Human
;
Haplotypes*
;
Histocompatibility Testing
;
HLA-A Antigens*
;
HLA-B Antigens
;
HLA-C Antigens
;
Humans
;
Multigene Family
;
Serotyping
6.Effects of filler addition to bonding agents on shear bond strength.
Young OH ; Myung Hwan OH ; Byeong Hoon CHO ; Ho Hyun SON ; Hyuk Choon KWON ; Chung Moon UM
Journal of Korean Academy of Conservative Dentistry 2002;27(1):44-53
No abstract available.
7.Cervical Epidural Abscess Secondary to Aorto-Duodenal Fistula: A Case Report.
Hyeong Joong YI ; Seong Hoon OH ; Oh Jung KWON ; Hyuk KIM
Journal of Korean Medical Science 2003;18(1):116-119
Although cervical epidural abscess is rare, it should be strongly suspected in any patient with unexplainable neck pain and fever, especially when the patient has a predisposing factor for this infectious process. The authors report a case of cervical epidural abscess in a 39-yr-old man with an aorto-duodenal fistula, which complicated the interposition of artificial graft for abdominal aortic aneurysm rupture, which had undertaken 40 months before. Timely detection and intervention rendered him a full neurological recovery. This extremely rare case is presented with a literature review.
Adult
;
Aneurysm, Dissecting/complications
;
Aneurysm, Dissecting/surgery
;
Aortic Aneurysm, Abdominal/complications
;
Aortic Aneurysm, Abdominal/surgery
;
Aortic Diseases/complications*
;
Aortic Rupture/complications
;
Aortic Rupture/surgery
;
Blood Vessel Prosthesis Implantation
;
Cervical Vertebrae*
;
Duodenal Diseases/complications*
;
Duodenal Ulcer/complications
;
Enterococcus
;
Epidural Abscess/etiology*
;
Epidural Abscess/microbiology
;
Epidural Abscess/surgery
;
Fistula/complications*
;
Gram-Positive Bacterial Infections/complications
;
Human
;
Male
;
Peptic Ulcer Perforation/complications
;
Salmonella Infections/complications
;
Staphylococcal Infections/complications
8.Validity and Reliability of the Korean Version of the MD Anderson Dysphagia Inventory for Head and Neck Cancer Patients.
Chan Hyuk KWON ; Yeo Hyung KIM ; Jae Hyeon PARK ; Byung Mo OH ; Tai Ryoon HAN
Annals of Rehabilitation Medicine 2013;37(4):479-487
OBJECTIVE: To translate the MD Anderson Dysphagia Inventory (MDADI) which is a self-administered questionnaire that assesses effect of dysphagia on the quality of life for patients with head and neck cancer, into Korean and to verify the validity and reliability of the Korean version of MDADI. METHODS: We performed 6 steps for the cross-cultural adaptation which consisted of translation, synthesis, back translation, review by an expert committee, cognitive debriefing, and final proof reading. A total of 34 dysphagia patients with head and neck cancers from Seoul National University Hospital answered the translated version of the questionnaire for the pre-testing. The patients answered the same questionnaire 2 weeks later to verify the test-retest reliability. RESULTS: One patient was excluded at second survey because he changed his feeding strategy. Overall, 33 patients completed the study. Linguistic validations were achieved by each step of cross-cultural adaptation. We gathered statistically strong construct validity (Spearman rho for subdomain scores to total score correlation range from 0.852 to 0.927), internal consistency for subdomains (Cronbach's alpha coefficients range from 0.785 to 0.889) and test-retest reliability (intra-class correlation coefficient range from 0.820 to 0.955) CONCLUSION: The Korean version of the MDADI achieved linguistic validations and demonstrated good construct validity and reliability. It can be a useful tool for screening and treatment planning for the dysphagia of patients with head and neck cancers.
Deglutition Disorders
;
Head
;
Head and Neck Neoplasms
;
Humans
;
Linguistics
;
Mass Screening
;
Neck
;
Quality of Life
;
Reproducibility of Results
;
Surveys and Questionnaires
9.Sequence analysis of segment A gene of a very virulent infectious bursal disease virus recently isolated in Korea.
Hyun Seok OH ; Jin Hwa LEE ; Hyuk Moo KWON ; Haan Woo SUNG
Korean Journal of Veterinary Research 2011;51(1):37-46
Infectious bursal disease virus (IBDV) is a member of the Avibirnavirus genus of the Birnaviridae family which genome consists of two segments (A and B) of double stranded RNA. Segment A gene of KNU08010 isolate, which was isolated from a 15-day-old chicken flock in 2008, was sequenced and compared with other IBDV isolates including SH/92 strain, the first Korean very virulent (vv) IBDV isolate. The amino acid sequences of segment A gene showed that KNU08010 had 99.2% homology with SH92 strain. KNU08010 isolate had specific amino acids A222, I242, I256, I294 and S299 which are highly conserved among vvIBDV strains. Phylogenetic analysis based on the nucleotide sequences of variable region of the VP2 gene of 18 IBDV strains revealed that KNU08010 was grouped with vvIBDVs and was closely related to Korean vvIBDVs isolated from wild birds.
Amino Acid Sequence
;
Amino Acids
;
Avibirnavirus
;
Base Sequence
;
Birds
;
Birnaviridae
;
Chickens
;
Genes, vif
;
Genome
;
Humans
;
Infectious bursal disease virus
;
Korea
;
RNA, Double-Stranded
;
Sequence Analysis
;
Sprains and Strains
10.Osseointegration with Ceramic Coated Implant.
Jin Hyuk KO ; Soon KWON ; Myun Whan AHN ; Jun Hyeok CHOI ; Suk Young KIM ; Sun Ho OH
Journal of Korean Society of Spine Surgery 2004;11(2):77-82
PURPOSE: This study was designed to clarify the osseointegration of the titanium screw coated with CMP, in regard to the time schedule, through the characteristic of early osseointegration. MATERIALS AND METHODS: Mechanical, radiological and histomophometric measurements were performed in 28 rabbit tibial proximal metaphyseal cortical bone screws 6, 12, 26 and 52 weeks after surgery for the in vivo comparison of the osseointegration of titanium screws (3.75 mm diameter, 5 mm length) with different surface treatments: CMP coating group, with the sol-gel method (experimental group) and uncoated group (control group). RESULTS: 1. Radiology: There were no differences between the two groups without a radiolucent line or in regard to the time schedule. 2. Histology: There were no differences between the two groups without a fibrous tissue intervening surface or in regard to the time schedule. 3. Torque test: The test results for the CMP coated group were 1.5 times higher than those for the uncoated group, which was statistically meaningful, but there was no difference in regard to the time schedule. CONCLUSION: CMP coating is an option to increase the osseointegration of the titanium screw.
Appointments and Schedules
;
Bone Screws
;
Ceramics*
;
Osseointegration*
;
Tibia
;
Titanium
;
Torque