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Hara H.,Kawaguchi Municipal Medical Center
Japanese Journal of Clinical Radiology | Year: 2012

As respiratory disorders are very common in children, chest radiography is the initial imaging examination and the most frequent pediatric procedure performed in the radiology department. Familiarity with the normal appearances of the pediatric chest, particularly expiration, airway, and variation of the normal thymus is essential to avoid errors of overinterpretation. This article provided an approach to evaluate the pediatric chest radiography, and also described the important signs, and useful findings which may be overlooked. Source

Taki A.,Tokyo Medical and Dental University | Abe M.,Tokyo Medical and Dental University | Abe M.,Jobu University | Komaki M.,Tokyo Medical and Dental University | And 4 more authors.
Congenital Anomalies | Year: 2012

We hypothesized that gene expression in placenta and umbilical vessels are affected by intrauterine environment and some of the expression in umbilical vessels originating from the fetus could reflect fetal condition of these complicated pregnancies. Expression of angiogenesis-related factors and inflammatory cytokines were examined in placenta and umbilical vessels to clarify the effects of intrauterine environment of pregnancies complicated by preeclampsia and chorioamnionitis/funisitis. Forty-six preterm cesarean section deliveries were classified into three groups based on maternal condition during prenatal monitoring: preeclampsia (PE) (n=11), chorioamnionitis/funisitis (CAM) (n=8), and preterm control (PC) (n=27). Angiogenesis-related factors and inflammatory cytokines in placentas, umbilical arteries and umbilical veins were analyzed by RT-PCR and immunohistochemistry. We demonstrated that Ang-2, Tie-2, and Dll4 increase in the placentas of PE compared to PC for the first time, and we confirmed the findings of previous reports showing the high expression of HIF-1α, sFlt-1, endoglin, leptin, and AT1R. Expression of angiogenesis-related factors, including HIF-1α, VEGF, angiopoietin, and TGF-β systems, and inflammatory cytokines, such as TNF-α and IL-6, increased in umbilical vessels of PE. Umbilical veins of CAM showed a higher Dll4 level than did PC. In preeclampsia, abnormal expressions of angiogenesis-related factors related to lifestyle diseases in adulthood were seen in the placenta and umbilical vessels as compared to PC. Chorioamnionitis/funisitis showed only upregulation of DII4 in umbilical veins. © 2012 Japanese Teratology Society. Source

Hasegawa K.,Brigham and Womens Hospital | Hasegawa K.,Massachusetts General Hospital | Hagiwara Y.,Kawaguchi Municipal Medical Center | Chiba T.,Obama Municipal Hospital | And 4 more authors.
Resuscitation | Year: 2012

Objectives: Emergency medicine is increasingly recognized as a medical specialty in Japan. However, comprehensive studies evaluating emergency airway management practice are lacking. We describe emergency department (ED) airway management using a large multi-center registry. Methods: We formed the Japanese Emergency Airway Network, a consortium of 10 academic and community medical centers in Japan, and prospectively collected data on ED intubations from April 2010 to February 2011. All patients undergoing emergency intubation were eligible for inclusion. Data were entered in real time by the intubator using a standardized data form. Variables included patient's age, sex, weight, indication for intubation, methods of intubation, drugs, level of training and specialty of the intubator, number of attempts, success or failure, and adverse events. We present descriptive data as proportions with 95% confidence intervals. Results: We recorded 1486 intubations (compliance rate 99%). Intubation was ultimately successful in 99.7%. The initial method of intubation varied substantially among the hospitals, including rapid sequence intubation (0-79%), sedation without paralysis (4-88%), paralysis without sedation (0-18%), and oral without medication (12-67%), in non-cardiac arrest encounters. Success rates in first and ≤3 attempts ranged from 40 to 83% and from 74 to 100%, respectively. The overall adverse event rate was 11%, without significant difference by the method used. Conclusions: In this multi-center study characterizing ED airway management across Japan, we observed a high overall success rate but a high degree of variation among hospitals in the methods of intubation and success rates. © 2011 Elsevier Ireland Ltd. Source

Gando S.,Hokkaido University | Saitoh D.,National Defense Medical College Research Institute | Ishikura H.,Fukuoka University | Ueyama M.,Critical Care Medicine and Burn Center | And 19 more authors.
Critical Care | Year: 2013

Introduction: To test the hypothesis that the administration of antithrombin concentrate improves disseminated intravascular coagulation (DIC), resulting in recovery from DIC and better outcomes in patients with sepsis, we conducted a prospective, randomized controlled multicenter trial at 13 critical care centers in tertiary care hospitals.Methods: We enrolled 60 DIC patients with sepsis and antithrombin levels of 50 to 80% in this study. The participating patients were randomly assigned to an antithrombin arm receiving antithrombin at a dose of 30 IU/kg per day for three days or a control arm treated with no intervention. The primary efficacy end point was recovery from DIC on day 3. The analysis was conducted with an intention-to-treat approach. DIC was diagnosed according to the Japanese Association for Acute Medicine (JAAM) scoring system. The systemic inflammatory response syndrome (SIRS) score, platelet count and global markers of coagulation and fibrinolysis were measured on day 0 and day 3.Results: Antithrombin treatment resulted in significantly decreased DIC scores and better recovery rates from DIC compared with those observed in the control group on day 3. The incidence of minor bleeding complications did not increase, and no major bleeding related to antithrombin treatment was observed. The platelet count significantly increased; however, antithrombin did not influence the sequential organ failure assessment (SOFA) score or markers of coagulation and fibrinolysis on day 3.Conclusions: Moderate doses of antithrombin improve DIC scores, thereby increasing the recovery rate from DIC without any risk of bleeding in DIC patients with sepsis.Trial registration: UMIN Clinical Trials Registry (UMIN-CTR) UMIN000000882. © 2013 Gando et al.; licensee BioMed Central Ltd. Source

Matsui S.,University of Toyama | Hebisawa A.,NHO Tokyo National Hospital | Sakai F.,Saitama University | Yamamoto H.,Shinshu University | And 15 more authors.
Respirology | Year: 2013

Background and objective Immunoglobulin G4 (IgG4)-related disease is a multi-organ disorder that can include the lungs. IgG4-related lung disease can present in various forms; the clinical, radiological and pathological features of patients with this disease have been assessed. Methods Forty-eight patients suspected of having IgG4-related lung disease, with a high serum concentration of IgG4 and abundant IgG4-positive plasma cell infiltration into the intrathoracic organs, were retrospectively evaluated. Their clinical features, chest imaging findings and pathological findings were examined, with final diagnoses made by an open panel conference. Results Of the 48 patients, 18 with extrathoracic manifestations were diagnosed as having IgG4-related lung disease. Most of these patients were middle-Aged to elderly men. IgG4-related lung disease was characterized by high serum concentrations of IgG and IgG4, normal white blood cell count and serum C-reactive protein concentration and a good response to corticosteroids. Common radiological findings included mediastinal lymphadenopathy and thickening of the perilymphatic interstitium, with or without subpleural and/or peribronchovascular consolidation. Pathological examination showed massive lymphoplasmacytic infiltration with fibrosis in and around the lymphatic routes, with distribution well correlated with radiological manifestations. Conclusions The findings suggest that the intrathoracic manifestations of IgG4-related lung disease develop through lymphatic routes of the lungs and show various clinical characteristics. Because some lymphoproliferative disorders show similar findings, the correlation of clinicoradiological and pathological characteristics is crucial for the diagnosis of IgG4-related lung disease. The clinicoradiological and pathological features of IgG4-RLD were assessed. Clinically, this disease is silent, although radiological and pathological examinations showed that it involves lymphatic routes, with spread observed on imaging and infiltration on pathological examination. Clinicoradiological and pathological correlation is necessary for the diagnosis of this disease. © 2013 The Authors. Respirology © 2013 Asian Pacific Society of Respirology. Source

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