Matsumura N.,Keio University |
Ogawa K.,Eiju General Hospital |
Oki S.,Keio University |
Watanabe A.,Ito Municipal Hospital |
And 2 more authors.
Journal of Shoulder and Elbow Surgery | Year: 2014
Background: The morphologic features and clinical significance of version of the humeral head and glenoid remain unclear. The purpose of this study was to evaluate the normal values of humeral head version and glenoid version on computed tomography scans and to clarify their features in the normal glenohumeral joint. Methods: Images for analysis were computed tomography scans of 410 normal shoulders from healthy volunteers. Values of humeral head and glenoid version were measured. In glenoid version measurement, 3-dimensionally corrected slices were reconstructed to eliminate scapular inclination. Differences in humeral head version and glenoid version were assessed between dominant and nondominant shoulders and between men and women. Correlation analyses were also performed in the values of version between dominant and nondominant shoulders and between humeral head version and glenoid version. Results: The values of humeral head retroversion were widely distributed from -2° to 60°, with an average of 26°±11°. Average glenoid retroversion was 1°±3°, ranging from -9° to 13°. Both humeral head retroversion and glenoid retroversion were significantly higher on the dominant side than on the nondominant side and significantly higher in men than in women. Humeral head version and glenoid version values were well correlated with those of the contralateral shoulder. No correlation was found between humeral head version and glenoid version. Conclusions: This study found differences in humeral head version and glenoid version by sex and shoulder dominance in a large sample. Both the humeral head and glenoid are thought to be more retroverted in high-demand shoulders. © 2014 Journal of Shoulder and Elbow Surgery Board of Trustees.
Yoshida H.,Eiju General Hospital |
Russell J.,Louisiana State University Health Sciences Center |
Senchenkova E.Y.,Louisiana State University Health Sciences Center |
Almeida Paula L.D.,Louisiana State University Health Sciences Center |
Granger D.N.,Louisiana State University Health Sciences Center
American Journal of Pathology | Year: 2010
Inflammatory bowel diseases (IBDs) are associated with an increased risk for thromboembolism, which is often manifested as deep vein thrombosis or pulmonary embolism, at extra-intestinal sites. Although some of the cytokines that contribute to IBD pathogenesis are also known to alter the coagulation pathway, it remains unclear whether these mediators also contribute to the extra-intestinal thrombosis often associated with IBD. The objective of this study is to evaluate the role of interleukin (IL)-1β in enhanced extra-intestinal thrombosis observed in mice with dextran sodium sulfate (DSS)-induced colitis. IL-1β concentrations were measured in plasma, colon, and skeletal muscle of wild-type (WT) control and colitic mice. Microvascular thrombosis was induced in cremaster muscle microvessels by using a light/dye injury model. The effects of exogenous IL-1β on thrombus formation were determined in control WT mice. DSS-induced thrombogenesis was evaluated in WT mice treated with an IL-1βantibody and in IL-1 receptor-deficient (IL-1r-/-) mice. DSS-induced colonic inflammation in WT mice was associated with enhanced thrombus formation in arterioles. IL-1β concentrations were elevated in inflamed colon and skeletal muscle. Exogenous IL-1β enhanced thrombosis in control mice in a dose-dependent manner. DSS colitic mice treated with the IL-1β antibody as well as IL-1r-/- mice exhibited significantly blunted thrombogenic responses. These findings implicate IL-1β as a mediator of enhanced microvascular thromboses that occur in extra-intestinal tissues during colonic inflammation. Copyright © American Society for Investigative Pathology.
Dembo T.,Eiju General Hospital |
Tanahashi N.,International University of Japan
Internal Medicine | Year: 2013
A 55-year-old man presented with vertigo, nystagmus, and gait ataxia followed by left hemiparesis (Opalski syndrome). T2-weighted magnetic resonance imaging revealed vascular compression of the left lateral side of the medulla oblongata by the left vertebral artery. On diffusion tensor imaging, the level of fractional anisotropy (FA) in the left corticospinal fibers caudal to the pyramidal decussation was lower than that observed in the right corticospinal fibers. Opalski syndrome caused by vascular compression is very rare. This is the first reported case of Opalski syndrome that was imaged on FA. © 2013 The Japanese Society of Internal Medicine.
Hagihara M.,Eiju General Hospital
[Rinshō ketsueki] The Japanese journal of clinical hematology | Year: 2011
An 85-year-old woman was admitted to our hospital with severe anemia after nail-plate fixation of the left femoral neck fracture. The patient was diagnosed with Coombs-negative autoimmune hemolytic anemia based on the measurement of red blood cell (RBC)-bound IgG molecules per cell. Pseudoaneurysm of the left profunda femoris artery was detected on magnetic resonance imaging and successfully removed by surgical repair of the artery. Anemia promptly improved, and the number of RBC-bound IgG normalized after the surgery. The destruction of RBCs was thought to have been responsible for temporary induction of anti-RBC autoimmune antibodies.
Sugaya N.,Keiyu Hospital |
Shinjoh M.,Keio University |
Mitamura K.,Eiju General Hospital |
Takahashi T.,Keio University
Journal of Infection | Year: 2011
Objective: There were many cases of pandemic influenza A (H1N1) 2009 (H1N1/09) in Japan during the 2009-2010 epidemic. They accounted for 16% of the total population (20.7 million/128 million), and 59% of the patients were children 15 years of age and under (12.2 million/20.7million). However, there were only 38 paediatric deaths. We analyzed the clinical manifestations and treatment of children hospitalized because of H1N1/09 infection in order to clarify the association between treatment with neuraminidase inhibitors and the low mortality rate. Methods: A retrospective chart review was performed on a total of 1000 paediatric inpatients. Results: The causes of the hospitalizations were respiratory complications in 651 cases (65.1%), neurological complications in 255 cases (25.5%) and other complications in 94 cases. Neuraminidase inhibitors, primarily oseltamivir, had been used to treat 984 (98.4%) of the 1000 patients, and in 88.9% of the patients, treatment with neuraminidase inhibitors was initiated within 48 h after the onset of illness. Only 12 (1.2%) of the 1000 patients underwent mechanical ventilation, and one patient died of H1N1/09 infection. Conclusions: Although a high proportion of the patients in this study had severe respiratory complications, the case fatality rate was only 0.1%. The low mortality rate of children due to the H1N1/09 epidemic in Japan was probably attributable to the universal implementation of early treatment with neuraminidase inhibitors. © 2011 The British Infection Association.