1.In-vitro cell invasiveness and cytotoxicity of CRMOX-posive and- negative strains of yersinia enterocolitica grown at 26'C and 37'C.
Seog Gee PARK ; Chul Soon CHOI ; Yun Seong JEON
Journal of the Korean Society for Microbiology 1992;27(4):313-324
No abstract available.
Yersinia enterocolitica*
;
Yersinia*
3.Safety of Surgical Tracheostomy during Extracorporeal Membrane Oxygenation.
Hye Ju YEO ; Seong Hoon YOON ; Seung Eun LEE ; Doosoo JEON ; Yun Seong KIM ; Woo Hyun CHO ; Dohyung KIM
Korean Journal of Critical Care Medicine 2017;32(2):197-204
BACKGROUND: The risk of bleeding during extracorporeal membrane oxygenation (ECMO) is a potential deterrent in performing tracheostomy at many centers. To evaluate the safety of surgical tracheostomy (ST) in critically ill patients supported by ECMO, we reviewed the clinical correlation between preoperative coagulation status and bleeding complication-related ST during ECMO. METHODS: From April 1, 2012 to March 31, 2016, ST was performed on 38 patients supported by ECMO. We retrospectively reviewed and analyzed the medical records including complications related to ST. RESULTS: Heparin was administered to 23 patients (60.5%) for anticoagulation during ECMO, but 15 patients (39.5%) underwent ECMO without anticoagulation. Of the 23 patients administered anticoagulation therapy, heparin infusion was briefly paused in 13 prior to ST. The median platelet count, international normalized ratio, and activated partial thromboplastin time before ST were 126 ×109/L (range, 46 to 434 ×109/L), 1.2 (range, 1 to 2.3) and 62 seconds (27 to 114.2 seconds), respectively. No peri-procedural clotting complications related to ECMO were observed. Two patients (5.3%) suffering from ST-related major bleeding required surgical hemostasis. Minor bleeding after ST occurred in two cases (5.3%). No significant difference was found according to anticoagulation management (P = 0.723). No fatality was attributable to ST. CONCLUSIONS: The complication rates of ST in the patients supported by ECMO were low. Therefore, ST performed by an experienced operator, and with careful optimization of coagulation status, is a relatively safe procedure; the use of ST with ECMO should thus not be dismissed on account of the potential for bleeding caused by the administration of anticoagulants.
Anticoagulants
;
Critical Illness
;
Extracorporeal Membrane Oxygenation*
;
Hemorrhage
;
Hemostasis, Surgical
;
Heparin
;
Humans
;
International Normalized Ratio
;
Medical Records
;
Partial Thromboplastin Time
;
Platelet Count
;
Retrospective Studies
;
Tracheostomy*
4.Clinical Characteristics of Respiratory Extracorporeal Life Support in Elderly Patients with Severe Acute Respiratory Distress Syndrome.
Woo Hyun CHO ; Dong Wan KIM ; Hye Ju YEO ; Seong Hoon YOON ; Seung Eun LEE ; Doo Soo JEON ; Yun Seong KIM ; Bong Soo SON ; Do Hyung KIM
Korean Journal of Critical Care Medicine 2014;29(4):266-272
BACKGROUND: Extracorporeal membrane oxygenation (ECMO) strategy is proposed to reduce the ventilator-induced lung injury in acute respiratory distress syndrome (ARDS). As ECMO use has increased, a number of studies on prognostic factors have been published. Age is estimated to be an important prognostic factor. However, clinical evidences about ECMO use in elderly patients are limited. Therefore, we investigated clinical courses and outcomes of ECMO in elderly patients with ARDS. METHODS: We reviewed medical records of patients with severe ARDS who required ECMO support. Study patients were classified into an elderly group (> or = 65 years) and a non-elderly group (< 65 years). Baseline characteristics, ECMO related outcomes and associated factors were retrospectively analyzed according to group. RESULTS: From February 2011 to June 2013, a total of 31 patients with severe ARDS were treated with ECMO. Overall, 14 (45.2%) were weaned from ECMO, 9 (29.0%) survived to the general ward and 7 (22.6%) survived to discharge. Among the 18 elderly group patients, 7 (38.9%) were weaned from ECMO, 4 (22.2%) were survived to the general ward and 2 (11.1%) were survived to discharge. Overall intensive care unit survival was inversely correlated with concomitant acute kidney injury or septic shock. CONCLUSIONS: In this study, ECMO outcome was poor in severe ARDS patients aged over 65 years. Therefore, the routine use of ECMO in elderly patients with severe ARDS is not warranted except in highly selective cases.
Acute Kidney Injury
;
Aged*
;
Extracorporeal Membrane Oxygenation
;
Humans
;
Intensive Care Units
;
Medical Records
;
Patients' Rooms
;
Respiratory Distress Syndrome, Adult*
;
Retrospective Studies
;
Shock, Septic
;
Ventilator-Induced Lung Injury
5.Noninvasive Estimation of Pulmonary Arterial Pressure by a Pulsed Doppler Echocardiography.
Seong Kuk KIM ; Eun Seok JEON ; You Ho KIM ; Byung Hee OH ; Young Bae PARK ; Yun Shik CHOI ; Jung Don SEO ; Young Woo LEE
Korean Circulation Journal 1987;17(2):281-287
Fifty nine patients who had been admitted to Seoul National University Hospital from April to October in 1986 were prospectively examined by a pulsed Doppler echocardiography on one day before cardiac catheterization. The sample volume was placed both just proximal and distal to pulmonic valve on 2-D echocardiogram. 1) Among the three morphologic patterns of the flow velocity, triangular and intermediate types indicate pulmonary hypertension (sensitivity 84%, specificity 86%), and round type indicates normal pulmonary arterial pressure (sensitivity 86%, specificity 84%). 2) In the group with pulmonary hypertension acceleration time and ejection time were measured shorter (P<0.01), and prejection period was measured longer than the group without pulmonary hypertension (P<0.05). 3) The best correlation was obtained between PEP/AT and mean pulmonary arterial pressure (r=0.77). Acceleration time alone also correlated well with mean arterial pulmonary pressure(r=-0.69). 4) In STI measurement and its correlation with pulmonary arterial pressure, no significant difference was observed when recorded in main pulmonary artery or right ventricular outflow tract. But in the latter position, late, systolic fluttering and variation in curve morphology occured less likely. 5) Our results indicate that the pulsed Doppler echocardiography is useful not only in the diagnosis of pulmonary hypertension but also in the quantitative estimation of pulmonary arterial pressure in different heart diseases. Futhermore this method may be a good tool for follow-up evaluation after surgical or medical treatment of patients with pulmonary hypertension.
Acceleration
;
Arterial Pressure*
;
Cardiac Catheterization
;
Cardiac Catheters
;
Diagnosis
;
Echocardiography, Doppler
;
Echocardiography, Doppler, Pulsed*
;
Heart Diseases
;
Humans
;
Hypertension, Pulmonary
;
Prospective Studies
;
Pulmonary Artery
;
Sensitivity and Specificity
;
Seoul
6.Facet Joint Injuries in Acute Cervical Spine Trauma: Evaluation with CT and MRI.
Jeon Ju HA ; Dong Hyun KIM ; Jeong Hwa LEE ; Keon LEE ; Hyeok Po KWON ; Jung Hyeok KWON ; Seong Mun YUN
Journal of the Korean Radiological Society 1999;40(5):957-963
PURPOSE: To evaluate injury patterns of facet joints and associated soft tissue injuries in patients withacute traumatic cervical facet joint injuries. MATERIALS AND METHODS: From among patients with cervical spinetrauma, 27 with facet joint injuries, as seen on CT and MRI, were chosen for this study. CT scans were analyzedwith regard to the location of facet joint injury, the presence or absence of facet dislocation or fracture, andother associated fractures. MR images were analyzed with regard to ligament injury, intervertebral disc injury,intervertebral disc herniation, and spinal cord injury. RESULTS: The most common location of facet joint injurywas C6-7 level(n=10), followed by C5-6(n=8). Among these 27 patients with facet joint injuries, 12(44%) hadbilateral injuries and 15(56%) unilateral injuries. Facet fractures were present in 17 cases(63%) and the fractureof inferior facet was more frequent than superi-or. Patterns of fracture were vertical, transverse, or comminuted,but vertical fracture was the most common. Various degrees of dislocation were observed in patients with facetfractures. Fractures other than facet includ-ed pillar(n=11), lamina(n=6), transverse process(n=14), body(n=13),and spinous process(n=3). On MR im-ages, anterior longitudinal ligament injury was found in 8 patients(30%),posterior longitudinal ligament injury in 4(15%), and interspinous ligament injury in 20(74%). Twelvepatients(44%) had spinal cord injuries includ-ing edema(n=8) and hemorrhage(n=4). Among patients with discabnormalities, 11(41%) had intervertebral disc injuries, and traumatic disc herniations were found in nine. CONCLUSION: Traumatic cervical facet joint injuries were manifested as various patterns and frequentlyassoci-ated with other fractures or soft tissue injuries. Analysis of CT and MR findings of these injury patternshelped formulate a therapeutic plan and determine of prognosis.
Dislocations
;
Humans
;
Intervertebral Disc
;
Ligaments
;
Longitudinal Ligaments
;
Magnetic Resonance Imaging*
;
Prognosis
;
Soft Tissue Injuries
;
Spinal Cord Injuries
;
Spine*
;
Tomography, X-Ray Computed
;
Zygapophyseal Joint*
7.The MRI Findings and Clinical Analysis in the Severe Diffuse Axonal Injury.
Hae Gyoum KIM ; Seong Ho KIM ; Si Hoon SONG ; Kuan Tae KIM ; Yun KIM
Journal of Korean Neurosurgical Society 1995;24(1):13-20
The distribution and extent of traumatic lesions were evaluated with MRI in 31 patients with diffuse axonal injuries(DAI). Authors also analyzed patients with diffuse axonal injury, clinically. The patients with DAI showed statistically significant lower incidence of lucid interval, fracture of the skull and intracranial hematoma. Combined injuries, intracrnial hematomas and distribution of lesions were proved to be poor prognostic factors of DAI. Diffuse axonal injury is most commonly involved in the white matter of the frontal and temporal lobes and the splenium of the corpus callosum. Patients with lesions in brainstem and cerebellum revealed worst prognosis. In our studies, the sensitivities of the imaging techniques for diffuse axonal injuries were 7.3% with CT scan, 75.6% with T1WI, and with 97.6% in T2WI of MRI, respectively. The authors concluded that MRI has clear advantages over CT in evaluating diffuse axonal injuries.
Axons
;
Brain Stem
;
Cerebellum
;
Corpus Callosum
;
Diffuse Axonal Injury*
;
Hematoma
;
Humans
;
Incidence
;
Magnetic Resonance Imaging*
;
Prognosis
;
Skull
;
Temporal Lobe
;
Tomography, X-Ray Computed
8.Ethanol extract of Angelica gigas inhibits croton oil-induced inflammation by suppressing the cyclooxygenase - prostaglandin pathway.
Sunhee SHIN ; Seong Soo JOO ; Dongsun PARK ; Jeong Hee JEON ; Tae Kyun KIM ; Jeong Seon KIM ; Sung Kyeong PARK ; Bang Yeon HWANG ; Yun Bae KIM
Journal of Veterinary Science 2010;11(1):43-50
The anti-inflammatory effects of an ethanol extract of Angelica gigas (EAG) were investigated in vitro and in vivo using croton oil-induced inflammation models. Croton oil (20 microgram/mL) up-regulated mRNA expression of cyclooxygenase (COX)-I and COX-II in the macrophage cell line, RAW 264.7, resulting in the release of high concentrations of prostaglandin E2 (PGE2). EAG (1~10 microgram/mL) markedly suppressed croton oil-induced COX-II mRNA expression and PGE2 production. Application of croton oil (5% in acetone) to mouse ears caused severe local erythema, edema and vascular leakage, which were significantly attenuated by oral pre-treatment with EAG (50~500 mg/kg). Croton oil dramatically increased blood levels of interleukin (IL)-6 and PGE2 without affecting tumor-necrosis factor (TNF)-alpha and nitric oxide (NO) levels. EAG pre-treatment remarkably lowered IL-6 and PGE2, but did not alter TNF-alpha or NO concentrations. These results indicate that EAG attenuates inflammatory responses in part by blocking the COX-PGE2 pathway. Therefore, EAG could be a promising candidate for the treatment of inflammatory diseases.
Angelica/*immunology
;
Animals
;
Cell Line
;
Cyclooxygenase 1/genetics/*immunology
;
Cyclooxygenase 2/genetics/*immunology
;
Dinoprostone/genetics/immunology
;
Inflammation/drug therapy/enzymology/*immunology
;
Interleukin-6/blood
;
Macrophages
;
Male
;
Mice
;
Mice, Inbred ICR
;
Nitric Oxide/blood
;
Phytotherapy/*methods
;
Plant Extracts/*pharmacology/therapeutic use
;
Plant Roots/immunology
;
RNA, Messenger/chemistry/genetics
;
Reverse Transcriptase Polymerase Chain Reaction
;
Tumor Necrosis Factor-alpha/blood
9.Pregnancy Outcome of Natural and In-vitro Fertilization Twin Pregnancy.
Yun Jin KIM ; Hyung Min CHOI ; Seong Hoon HONG ; Woon Hee SUH ; Byeong Jun JUNG ; Myung Kwon JEON ; Eung Soo LEE
Korean Journal of Perinatology 2001;12(4):480-485
No abstract available.
Female
;
Fertilization*
;
Humans
;
Pregnancy
;
Pregnancy Outcome*
;
Pregnancy*
;
Pregnancy, Twin*
10.Newly Diagnosed Diabetes Mellitus With Pancreatic Cancer Manifested as Hyperglycemic Hyperosmolar State.
Tae Hyung KWON ; Min Seong KIM ; Jun Ho JEON ; Dong Il JEONG ; Sang Seok YUN ; Yong Kyu LEE
Journal of the Korean Geriatrics Society 2013;17(2):95-98
Here, we report a case of newly diagnosed diabetes, with concurrent pancreatic cancer manifested as hyperglycemic crisis, and aggravated by urinary tract infection. We summarize the initial clinical manifestations and pertinent laboratory, radiologic, and clinical findings in an elderly patient with hyperglycemic emergency. A review of the documents involving pancreatic tumors and hyperglycemic hyperosmolar state, which is an acute complication of diabetes mellitus, is presented. In the absence of other identifiable conditions, it is reasonable to speculate that some factor (or factors) produced by the tumor had a role in the metabolic decompensation. In addition, this discussion should be more carefully considered in the aged people group.
Aged
;
Diabetes Mellitus
;
Emergencies
;
Humans
;
Pancreatic Neoplasms
;
Urinary Tract Infections