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991.
We reviewed 24 total knee arthroplasties using Kinematic type (anteriorly joined type or posterior cruciate retention type) in 18 rheumatoid patients who were under the age of 50 years. Thirteen knees with Kinematic type total knee arthroplasty in 10 rheumatoid patients who were over 70 years of age were also reviewed. Using rheumatoid arthritic knee rating score of J.O.A. (Japan Orthopedic Association), the clinical results of young patients were evaluated and were compared with those of elderly patients. The average total score of young patients and that of older patients was almost equally increased after arthroplasty. Postoperatively in older patients, pain score was elevated more remarkably than in young patients. However, increase in score of quadriceps muscle strength, walking ability and climbing stairs ability were less in older patients than that in young patients. Range of motion was not improved in both young and older patients. However, flexion contracture was improved remarkably in both groups. 相似文献
992.
Cortical somatosensory evoked potential associated with experimental chronic cord compression by epidural neoplasm in rabbits 总被引:1,自引:0,他引:1
An experimental model of spinal cord compression was developed in rabbits by epidural neoplasms which were injected anterior to the T 13 vertebral body and grew into the spinal canal through the intervertebral foramina. With this experimental model, the neurological condition of the animals was monitored using a scale and changes of somatosensory evoked potentials (SEPs) were studied to evaluate the neurophysiological effect of experimental chronic cord compression. The animals were immobilized with pancuronium bromide and artificial respiration was maintained through a tracheostomy. SEPs were recorded by silver ball electrodes which were positioned epidurally over the somatosensory cortex through small burr holes. A subcutaneous needle placed at the nose served as a reference electrode. Right hind paw was stimulated via two percutaneous needles with 0.1 msec rectangular impulses sufficiently strong to produce motor responses, ranging from 10 to 20 volt in control rabbits. Electrical stimuli were delivered at a rate of 1 Hz. The intensity of electrical stimulation was raised up to 300 volt, when no consistent SEP was observed in the rabbit with spinal neoplasm. The SEP was summated by averaging 50 successive cortical transients with the analysis time of 200 and 500 msec. The cortical SEPs in the rabbit normally consisted of a positive-negative sequence, which we labelled P1, N1, P2, N2 and so on. Early peaks, P1 and N1, were observed constantly with average latencies of 30.1 and 53.3 msec respectively in normal rabbits. The variability of amplitudes seen even in control animals made them a less useful measure of function than latencies. Normal SEPs were preserved until the animals demonstrated moderate paraparesis.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
993.
994.
Hideki Kitamura Takahiro Doi Hitoshi Okabayashi Ichiro Shimada Michiya Hanyu Yuhei Saitoh 《General thoracic and cardiovascular surgery》2003,51(10):562-564
An 83-y-old man was admitted to our hospital with pneumonia and critical cardiac failure. He had severe calcific stenosis of a bicuspid aortic valve, with a pressure gradient of about 100 mmHg, poor left ventricular function and an ascending aortic aneurysm. His family requested the surgery, but there was an unacceptably high surgical risk because of the presence of serious infection. We tried percutaneous transluminal balloon aortic valvuloplasty (PTAV) with a small sized (12 mm) peripheral percutaneous transluminal angioplasty balloon as a bridge to surgery. We managed to control his critical hemodynamics and infection after the procedure. Thereafter, he underwent successful aortic valve replacement and ascending aorta replacement. PTAV may be a useful palliative therapy, but there are various procedure-related complications. To avoid such complications, we used a small sized balloon. Actually we could not completely normalize the pressure gradient, but it was enough to control his critical cardiac failure until he could undergo surgery. 相似文献
995.
Seiji Hori Junko Sato Ichiro Kondoh Masahiro Kawamura 《Journal of infection and chemotherapy》1997,3(4):198-201
The efficacy of erythromycin (EM) and clarithromycin (CAM) is well documented for the management of chronic inflammatory respiratory
tract disease. However, the precise mechanism of action of these drugs is still controversial. We previously reported that
EM increased serum glucocorticoid (GC) levels and suggested that this increase may be a mechanism of action of the drug. To
investigate whether other macrolides had similar activity, we studied the effect of a new macrolide, CAM, on serum GC levels
in mice. Intraperitoneal injections of CAM increased the serum GC levels in a dose-dependent manner, with the increase completely
suppressed by pretreatment with dexamethasone. These results suggest that CAM increases serum GC levels through activation
of the hypothalamo-pituitary adrenocortical axis, and that the antiinflammatory activity of CAM appears to exert its influence
via an increase in serum GC levels. 相似文献
996.
Mitsunori Shigetomi Wayne A. Morrison Kevin C. O'Loughlin Kazuhiro Sakai Noriyuki Kuwata Ichiro Ohta Peter G. Hayward John V. Hurley Bernard McC. O'Brien 《Microsurgery》1994,15(10):738-745
Prior animal studies of vascularized epiphyseal transfers placed growth plates in 2 bone systems where the independent growth of epiphyses and their response to altered stresses has been difficult to assess. This study assessed growth of vascularized ulnar epiphyses transferred to the ipsilateral humerus of 12-week-old puppies. Growth was permitted by a specially designed extensible plate. Control groups showed that humeral dissection, osteotomy and ostectomy alone do not stimulate growth. In 4 puppies initial growth of the transferred epiphysis was seen but late collapse and formation of bridging callus occurred so that overall humeral length at maturity was not significantly different from control humeri. Physical forces inherent in heterotopic transfer may preclude long term growth of transferred epiphyses particularly in sites of higher relative load. The extensible plate used here may be a useful device in the fixation of transferred epiphyses with growth potential. © 1994 Wiley-Liss, Inc. 相似文献
997.
Yoshifumi Arisaka Daisuke Masuda Yoshitomo Yamada Ichiro Hirata Ken‐ichi Katsu 《Digestive endoscopy》2005,17(Z1):S69-S71
We experienced a case of cholesterosis of the common bile duct in which peroral cholangioscopy (POCS) was very useful for making a diagnosis. The patient was a 66‐year‐old man. He was admitted for examination of an asymptomatic mass in the pancreas. The mass was diagnosed as a serous cystic tumor of the pancreas. While examining the tumor, endoscopic retrograde cholangiopancreatography (ERCP) incidentally revealed a 7 mm irregular filling defect in the distal common bile duct. EST was then performed, followed by POCS, which revealed a clump of yellowish‐white Ip or Isp polyps in the distal bile duct. Histological examination of biopsy specimens taken under direct vision gave a diagnosis of cholesterol polyps containing foamy cells. POCS was useful for allowing direct observation of the characteristic color of cholesterol polyps, and for obtaining biopsy specimens under direct vision. 相似文献
998.
Hiroki Tahara Shigeyuki Hayashi Motoyasu Kusano Masaru Kojima Ichiro Ohki 《Digestive endoscopy》2005,17(2):175-178
Gastritis cystica polyposa (GCP) is a well‐known precancerous lesion of the remnant stomach. We report a case of carbohydrate antigen (CA) 19–9‐producing well‐differentiated adenocarcinoma of the remnant stomach that resembled GCP. The patient was a 66‐year‐old Japanese man who had undergone subtotal gastrectomy 20 years previously. The tumor developed in the remnant stomach at the anastomotic line. Histologically, the lesion completely encircled the gastroenterostomy stoma. There was florid growth of glands with cystic dilatation and minimal atypia extending through the thickened muscularis propria into the subserosa. Small foci of less well‐differentiated adenocarcinoma were also detected, including irregular glands or small clusters of mucus‐producing cells with moderate atypia. Immunostaining revealed that numerous tumor cells were positive for carcinoembryonic antigen and CA19‐9, whereas only a few cells were positive for p53. The macroscopic, histopathological and immunohistochemical findings indicated a diagnosis of CA19‐9‐producing well‐differentiated adenocarcinoma of the remnant stomach. To avoid underdiagnosis, careful attention should be paid to the above‐mentioned morphological features and immunohistochemical findings, in addition to the endoscopic findings. 相似文献
999.
Ishimaru Keiko Isomoto Ichiro Okimoto Tomoaki Itoyanagi Akinori Uetani Masataka 《European radiology》2002,12(3):S105-S108
European Radiology - We report a case of sarcoidosis of the breast in a 31-year-old woman who presented with a palpable breast mass. The mammography showed a spiculated mass without any... 相似文献
1000.