1.Hemolytic Anemia Case Caused by an Inverted Inner Felt after Bentall Operation.
Hyun KANG ; Ju Won CHOE ; Dai Yun CHO ; Dong Suep SOHN ; Sang Wook KIM ; Joonhwa HONG
Journal of Korean Medical Science 2013;28(12):1827-1829
A 26-yr-old male patient reported worsened dyspnea, dizziness one year after an emergency Bentall operation for type A aortic dissection. There was evidence of hemolytic anemia and aortogram revealed a significant stenosis at the distal anastomosis site. During the reoperation, we found the inner felt at the distal anastomosis was inverted causing a significant stenosis. The reoperation successfully resolved this problem. Here, we report a rare case of hemolytic anemia caused by an inverted inner felt after Bentall operation.
Acute Disease
;
Adult
;
Anastomosis, Surgical
;
Anemia, Hemolytic/*diagnosis/*etiology/surgery
;
Aneurysm, Dissecting/complications/*surgery
;
Aortic Aneurysm/complications/*surgery
;
*Blood Vessel Prosthesis
;
Blood Vessel Prosthesis Implantation/*adverse effects/instrumentation
;
Dizziness/etiology
;
Dyspnea/etiology
;
Echocardiography
;
Humans
;
Male
;
*Postoperative Complications/surgery
;
Reoperation
;
Time Factors
;
Tomography, X-Ray Computed
;
Treatment Outcome
2.Complications of a Tube Thoracostomy Performed by Emergency Medicine Residents.
Dai Yun CHO ; Dong Suep SOHN ; Young Jin CHEON ; Kihun HONG
Journal of the Korean Society of Traumatology 2012;25(2):37-43
PURPOSE: A tube thoracostomy is an invasive procedure that places patients at risk for complications. Tube thoracostomies are frequently performed by emergency medicine residents. Thus, the purpose of the study was to assess both the complication rate for tube thoracostomies performed by emergency medicine residents and the factors associated with these complications. METHODS: A retrospective chart review of all patients who had undergone a tube thoracostomy performed by emergency medicine residents between January 2008 and February 2009 was conducted at a university hospital. Complications were divided into major and minor complications and into immediate and delayed complications. Complications requiring corrective surgical intervention, requiring the administration of blood products, or involving situations requiring intravenous antibiotics were defined as major. Complications that were detected within 2 hours were defined as immediate. RESULTS: Tube thoracostomies were performed in 189 patients, and 70 patients(37%) experienced some complications. Most complications were immediate and minor. In multiple logistic regressions, BMI, hypotension and resident seniority were significantly associated with complications. CONCLUSION: The prevalence of complications was similar to these in previous reports on the complications of a tube thoracostomy. Most complications from tube thoracostomies performed by emergency medicine residents were immediate and minor complications. Thus, emergency medicine residents should be allowed to perform closed tube thoracostomies instead of thoracic surgeons.
Anti-Bacterial Agents
;
Emergencies
;
Emergency Medicine
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Humans
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Hypotension
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Logistic Models
;
Prevalence
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Retrospective Studies
;
Thoracostomy
3.HLA-DRB1 Study of DNA from Ancient Human Skeleton by Sequence-based Typing.
Ji Young WOO ; Kijeong KIM ; Bazarragchaa MUNKHTSETSEG ; Jae Hyun KIM ; Gavaachimed LKHAGVASUREN ; Dong Suep SOHN ; Ae Ja PARK ; Kwang Ho LEE ; Dae Jin KIM ; Yoon Hee CHUNG ; Sung Su KIM ; Won Bok LEE ; Kyung Yong KIM
Korean Journal of Physical Anthropology 2010;23(2):49-60
The analysis of ancient human DNA is increasingly used recently in the study of anthropology and human evolution. Although mitochondrial DNA and Y chromosomal DNA has commonly been the target in the field of human DNA study, HLA analysis of ancient human DNA is extremely rare. This study aimed to develop the PCR method of ancient human DNA for analyzing the sequence of HLA. Authors established a new method for HLA-DRB1 analysis by sequence-based typing. Alleles of HLA-DRB1 were analyzed and typed by sequencing with DNA of ancient human skeletons from Korea and Mongolia 3000-500 years ago. The types of HLA-DRB1 were determined by comparing the sequences with those of HLA database (http://www. ebi.ac.uk/Tools/blast2/nucleotide.html). The alleles of HLA-DRB1 of ancient human DNA from Korea and Mongolia were classified by types. The frequencies of HLA-DRB1 types of Mongolia were also presented according to the geography such as West, Central, East, and North. In summary, our method was successful in the analyzing the type of HLA-DRB1 from DNA of ancient human bones. Authors anticipate that many researchers could do their research in a better way to get the genetic information for the kinship analysis between individuals or communities from ancient human bones.
Alleles
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Anthropology
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DNA
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DNA, Mitochondrial
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Geography
;
HLA-DRB1 Chains
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Humans
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Korea
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Mongolia
;
Polymerase Chain Reaction
;
Skeleton
4.Vein Crossover Bypass Surgery for a Chronic Femoral Vein Ligation: A case report.
Joon Hwa HONG ; Dai Yun CHO ; Ju Won CHOE ; Dong Suep SOHN
The Korean Journal of Thoracic and Cardiovascular Surgery 2010;43(5):534-537
A twenty six year old man was admitted to our clinic for bleeding from a venous ulcer of the left leg. His left femoral vein had been ligated for bleeding control after a traffic accident that happened when he was 5 years old. He had a varicose vein, stasis dermatitis, and a venous ulcer on his left leg. To shunt left femoral venous return to the right femoral vein, we did a crossover bypass with arteriovenous fistula using the right greater saphenous vein. To get good patency of the arteriovenous fistula, the bypass graft was closed 6 weeks after the initial operation. He maintained his left leg circumference relatively well for 6 months after the operation. We report the case of a patient who had a vein crossover bypass for a chronic femoral vein ligation.
Accidents, Traffic
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Arteriovenous Fistula
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Dermatitis
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Femoral Vein
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Hemorrhage
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Humans
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Leg
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Ligation
;
Saphenous Vein
;
Transplants
;
Varicose Ulcer
;
Varicose Veins
;
Veins
5.Dorsal Cavoatrial Bypass for Congenital Interruption of IVC.
Ju Won CHOE ; Joonhwa HONG ; Dong Suep SOHN ; Dai Yun CHO
The Korean Journal of Thoracic and Cardiovascular Surgery 2010;43(5):525-528
Congenital interruption of the inferior vena cava (IVC) can lead to secondary hepatic congestion, portal hypertension, and liver cirrhosis. A 49-year-old woman was admitted to the gynecology department with symptoms of menorrhalgia, known uterine myoma, and anemia. Abdominal computed tomography (CT) and venography performed at our hospital revealed congenital interruption of the IVC. The patient underwent retrohepatic cavoatrial bypass surgery with a polytetrafluoroethylene (PTFE) 16-mm ringed graft via posterolateral thoracotomy, and recovered without major complications. A retroperitoneal approach via posterolateral thoracotomy provides appropriate visualization during dorsal cavoatrial bypass in treating patients with congenital interruption of IVC.
Anemia
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Budd-Chiari Syndrome
;
Estrogens, Conjugated (USP)
;
Female
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Gynecology
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Humans
;
Hypertension, Portal
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Liver Cirrhosis
;
Middle Aged
;
Myoma
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Phlebography
;
Polytetrafluoroethylene
;
Thoracotomy
;
Transplants
;
Vena Cava, Inferior
6.Anti-inflammatory and Anti-oxidant Effects of Sophora flavescens Root Extraction in Lipopolysaccharide-activated Raw 264.7 Cells.
Dong Hoon LEE ; Dong Suep SOHN ; Dai Yun CHO ; Beom Joon KIM ; Yun Young LIM ; Young Heui KIM
Korean Journal of Medical Mycology 2010;15(2):39-50
BACKGROUND: The macrophages activated by lipopolisaccharide produce numerous molecules and proteins, such as tumor necrotic factor-alpha (TNF-alpha), interleukin-6 (IL-6), IL-1beta, inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), and free radicals, associated with inflammation. The response was occurred by intracellular cascaded, NF-kappaB pathway. So, the regulation of this pathway is very important in control of inflammation. OBJECTIVE: In this study, the anti-inflammatory and anti-oxidant effects of Sophora flavescens that is used empirically in oriental medicine and folk remedy were evaluated and the mechanism of the effects was studied. METHODS: By using the root extracts of Sophora flavescens, we performed experiment in LPS and interferon-gamma (IFN-gamma)-activated Raw 264.7 cells. We measured the production of NO, PGE2 and expression of iNOS and COX-2 in activated Raw 264.7 cells with Sophora flavescens root extract. Also, we tested anti-oxidant effect of Sophora flavescens root extracts by ELISA kit in activated Raw 264.7 cells, and the free radical scavenging effect of material itself by DPPH assay. RESULTS: The Sophora flavescens root extracts decreased the production of NO (p<0.001) and PGE2 (p<0.01) in Raw 264.7 cells activated by LPS and IFN-gamma. The expression of proteins, iNOS and COX-2, suppressed along with the elevated concentration of Sophora flavescens root extracts. The result of DPPH assay was that the test material itself had scavenging effect for free radical (p<0.001). And the antioxidant activity in activated Raw 264.7 cells was increased with the level of the Sophora flavescens root extracts (p<0.05). CONCLUSION: The Sophora flavescens root extracts suppressed the production of NO and PGE2 through the decreased expression of iNOS and COX-2. And the Sophora flavescens root extracts had the scavenging effect about free radicals itself and increased the antioxidant activity in activated macrophages.
Antioxidants
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Cyclooxygenase 2
;
Dinoprostone
;
Enzyme-Linked Immunosorbent Assay
;
Free Radicals
;
Inflammation
;
Interferon-gamma
;
Interleukin-6
;
Macrophages
;
Medicine, East Asian Traditional
;
Medicine, Traditional
;
NF-kappa B
;
Nitric Oxide Synthase Type II
;
Proteins
;
Sophora
8.Intravenous Remifentanil Infusion during EVLT for Varicose Vein.
Seong Wook HWANG ; Dong Suep SOHN ; Dai Yun CHO
The Korean Journal of Thoracic and Cardiovascular Surgery 2008;41(2):247-252
BACKGROUND: We compared the analgesic effects of an intravenous infusion of remifentanil with local lidocaine injection during endovenous laser treatments (EVLT) for varicose veins. MATERIAL AND METHOD: In order to compare the efficacy of analgesia between the lidocaine group (n=15) and the remifentanil group (n=15), we measure the pain intensity of the patients, with using the visual analogue scale, during EVLT and at the first week, the second week, the third week and the fourth week after EVLT. RESULT: The remifentanil group showed significantly less pain intensity during EVLT (p<0.01), but there were no differences of pain intensity between the two groups from the first week to the fourth week after EVLT (p>0.3). CONCLUSION: The result showed that the intravenous infusion of remifentanil during EVLT can be a good option to reduce pain during EVLT for treating varicose veins.
Analgesia
;
Anesthesia, Local
;
Humans
;
Infusions, Intravenous
;
Laser Therapy
;
Lidocaine
;
Piperidines
;
Varicose Veins
;
Veins
9.Angioleiomyosarcoma Arising from the Deep Femoral Vein: A report of one case.
Seong Wook HWANG ; Nak Soo GOK ; Ho Joong JUNG ; Dong Suep SOHN ; Dai Yun CHO
The Korean Journal of Thoracic and Cardiovascular Surgery 2008;41(3):381-385
A 69-year-old man was admitted to our hospital for deep vein thrombosis, and he had experienced two episodes of left leg swelling: one happened after an 11 hour-air trip from Europe in June 2007, and the other developed 3 days after an operation for a herniated lumbar disc in July 2007. We treated him for a deep vein thrombosis of the deep femoral vein after admission. However, we arrived at the final diagnosis of angioleiomyosarcoma after the operation for the tentative diagnosis of deep vein thrombosis. We removed the firmly engorged deep femoral vein on the second operation. We report here on a case of angioleiomyosarcoma that arose from the deep femoral vein.
Aged
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Europe
;
Femoral Vein
;
Humans
;
Leg
;
Leiomyosarcoma
;
Thrombosis
;
Venous Thrombosis
10.Changes of Tight Junction and Epithelial Cells after Treatment of Cadmium.
Sang Jin LEE ; Kyung Yong KIM ; Dae Jin KIM ; Yoon Hee CHUNG ; Sung Su KIM ; Won Bok LEE ; Dae Yoon CHO ; Dong Suep SOHN
Korean Journal of Physical Anthropology 2007;20(1):69-82
Cadmium (Cd) affects cell proliferation, differentiation, apoptosis and other cellular activities and can cause numerous molecular lesions that would be relevant to carcinogenesis. The mechanism of adverse effects of Cd has been poorly understood and, especially on the tight junction. Since there is rare information about the effect of Cd on tight junction protein, we here investigated whether Cd can alter the localization of the proteins. This study examined Cd effects on of tight junction (occludin, ZO-1, and ZO-2) using MDCK cell culture. The change of MDCK cell and tight junction was investigated after treatment of cadmium with phase contrast microscopy, TEER, cell viability, Transmission electron microscopy and confocal laser microscopy. After treatment of cadmium, transendothelial electrical resistance decreased with time and concentration dependent manner. AlamarBlue assay revealed that decreased cell viability also decreased with time and concentration dependent manner. The tight junction moved down between intercellular spaces with decreased density and the cellular thickness around cell junctions decreased with increasing concentration and exposure time of CdCl2. The MDCK cells eventually showed cell death with. Confocal laser microscopy revealed that immunofluorescent reaction of occludin, ZO-1 and ZO-2 decreased. Occludin, ZO-1 and ZO-2 were disrupted at tight junction. These data suggest that after treatment of Cd, increased permeability of MDCK cell monolayer increased. This might be accompanied with disruption of occludin, ZO-1 and ZO-2.
Apoptosis
;
Cadmium Chloride
;
Cadmium*
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Carcinogenesis
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Cell Death
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Cell Proliferation
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Cell Survival
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Electric Impedance
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Epithelial Cells*
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Extracellular Space
;
Intercellular Junctions
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Madin Darby Canine Kidney Cells
;
Microscopy, Confocal
;
Microscopy, Electron, Transmission
;
Microscopy, Phase-Contrast
;
Occludin
;
Permeability
;
Tight Junctions*

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