No abstract available.
Yersinia enterocolitica* ; Yersinia*

Follow-Up Studies ; Muscles ; Orbit ; Orbital Fractures

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*

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

Toxic epidermal necrolysis(TEN) is a severe drug induced life-threatening disease and an acute illness. This disease is characterized by rapid onset of widespread necrosis resulting in sloughing of epidermis. The incidence of TEN is very rare, with approximately 0.5 to 1.4 cases per million per year. but TEN has a high mortality rate of 25-40 percent. Therapy for TEN is primarily aimed at supportive care. Treatment with systemic corticosteroid, immunosuppresive agent such as cyclosporine, cyclophosphamide, pentoxifyllin or plasmapheresis have not been shown to improve outcome. Recently, administration of high dose intravenous immunoglobulin(IVIG) has been shown to result in rapid improvement in patients with TEN. There have been several reports of the benefit of IVIG in adult patients with TEN. However we could not find using IVIG in pediatric patient with TEN in Korea. We have experienced improvement in a 2 years old boy with TEN after using high dose IVIG.
Adult ; Child ; Child, Preschool* ; Cyclophosphamide ; Cyclosporine ; Epidermis ; Humans ; Immunoglobulins* ; Immunoglobulins, Intravenous ; Incidence ; Korea ; Male* ; Mortality ; Necrosis ; Plasmapheresis ; Stevens-Johnson Syndrome*

STATEMENT OF PROBLEM: The use of zirconia prostheses fabricated with CAD/CAM system is on an increasing trend in dentistry. However, evaluation of the fit related to internal relief and marginal reproducibility of zirconia has not been reported. PURPOSE: This study was to evaluate the fit related to internal relief and marginal reproducibility of zirconia core fabricated with CAD/CAM system. Materials and methods: The evaluation was based on 30 zirconia cores and 5 IPS-Empress2 cores. Zirconia cores were fabricated in different conditions of internal relief(0, 10, 20, 30, 40 and 50 micrometer), and IPS-Empress2 cores were fabricated in accordance with the manufacturer's instructions. Before cementation, the marginal discrepancies of cores were measured on metal die. And then, each core was cemented to stone die, embedded in an acrylic resin and sectioned in two planes(mesiodistally and labiopalatally). The internal gaps were measured at the margin and axial surface. Measurements for the marginal discrepancies, the internal marginal gaps and the internal axial gaps were performed under a measuring microscope(Compact measuring microscope STM5; Olympus, Japan) at a magnification of *100. In addition, the marginal configurations of metal die, zirconia core and IPS-Empress2 core were examined with SEM(S-2700, Hitachi, Japan). RESULTS: Within the limits of this study the results were as follows. 1. Compared with IPS-Empress2 cores, the marginal discrepancies of zirconia cores had no significant differences, the internal marginal gaps were statistically smaller and the internal axial gaps were statistically larger in each condition of internal relief. 2. The marginal discrepancies and the internal marginal gaps of zirconia cores had no significant differences related to the conditions of internal relief(P>0.05). 3. The internal axial gaps of zirconia cores with 0.20micrometer for internal relief were significantly larger than that with 50micrometer(P<0.0001). 4. SEM micrographs showed favorable marginal reproducibility of zirconia core and smooth texture on the milling surface. CONCLUSION: The marginal discrepancy and the internal gaps of zirconia core were clinically acceptable and the milling surface was showed smooth texture. For fabrication of the durable esthetic restoration, further investigations on complex design of core, milling accuracy, compatability of enamel porcelain and porcelain firing seems to be needed.
Cementation ; Dental Enamel ; Dental Porcelain ; Dentistry ; Fires ; Prostheses and Implants

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

Gold therapy of rheumatoid arthritis is effective, but adverse reactions are also common. There are some cutaneous, hematologic, renal, and pulmonary side effects which have been associated with immunologic abnormalities. Also, hypersensitivity pneumonitis induced by gold therapy was rarely reported in literature. But, the mechanism for the induction of the pulmonary disease is not blown. We report a case of seropositive rheumatoid arthritis presented as gold induced hypersensitivity pneumonitis which was confirmed by the peripheral blood lymphocyte stimulation test with gold.
Alveolitis, Extrinsic Allergic* ; Arthritis, Rheumatoid ; Hypersensitivity* ; Lung Diseases ; Lymphocyte Activation* ; Lymphocytes*

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

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