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991.
Katsushi Takeshita Toru Maruyama Takashi Ono Satoshi Ogihara Hirotaka Chikuda Naoki Shoda Yusuke Nakao Ko Matsudaira Atsushi Seichi Kozo Nakamura 《European spine journal》2010,19(5):815-820
Parameters of the position of the aorta in previous reports were determined for anterior surgery. This study evaluated the
relative position of the aorta to the spine by new parameters, which could enhance the safety of pedicle screw placement.
Three parameters were defined in a new Cartesian coordinate system. We selected an entry point of a left pedicle screw as
the origin. The transverse plane was determined to include both the bases of the superior facet and to be parallel to the
upper endplate of the vertebral body. A line connecting the entry points of both sides was defined as the X-axis. The angle formed by the Y-axis and a line connecting the origin and the center of the aorta was defined as the left pedicle–aorta angle. The length
of a line connecting the origin and the aorta edge was defined as the left pedicle–aorta distance. Distance from the edge
of the aorta to the X-axis was defined as the pedicular line–aorta distance. These parameters were measured preoperatively in 293 vertebral bodies
of 24 patients with a right thoracic curve. We simulated the placement of the pedicle screw with variable length and with
some direction error. We defined a warning pedicle as that when the aorta enters the expected area of the screw. Sensitivity
analysis was performed to find the warning pedicle ratio in 12 scenarios. The left pedicle–aorta angle averaged 29.7° at the
thoracic spine and −16.3° at the lumbar spine; the left pedicle–aorta distance averaged 23.7 and 55.2 mm; the pedicular line–aorta
distance averaged 18.3 and 51.0 mm, respectively. The ratio of warning pedicles was consistently high at T4–5 and T10–12.
When a left pedicle screw perforates an anterior/lateral wall of the vertebral body, the aorta may be at risk. These new parameters
enable surgeons to intuitively understand the position of the aorta in surgical planning or in placement of a pedicle screw. 相似文献
992.
Hideo Arima Shoji Natsugoe Kousei Maemura Youichi Hata Toru Kumanohoso Hiroshi Imamura Yuko Mataki Hiroshi Kurahara Hiroyuki Shinchi Sonshin Takao Takashi Aikou 《Surgery today》2010,40(6):569-573
A 44-year-old man was attending routine follow-up 5 years after colon cancer resection, when ultrasonography detected a pancreatic tumor with a low echoic area. He had no symptoms. Computed tomography (CT) showed a protruding-type tumor, 4 cm in diameter, in the pancreatic head with central necrosis. Angiography revealed that the tumor was hypervascular. The serum somatostatin level was elevated, at 27 pg/ml (normal range, 1.0–12 pg/ml). As somatostatinoma of the pancreas was suspected, we performed pylorus-preserving pancreaticoduodenectomy. Histological and immunohistochemical staining confirmed somatostatinoma of the pancreas without nodal metastasis. Thus, if an endocrine tumor of the pancreas is suspected in a patient with a hypervascular tumor, the possibility of somatostatinoma should be included in the differential diagnosis. 相似文献
993.
Atsushi Ono Takuya Numasawa Kanichiro Wada Toru Yokoyama Kazunari Takeuchi Futoshi Suetsuna Kazumasa Ueyama Satoshi Toh 《Journal of orthopaedic science》2010,15(3):299-304
Background
There have been few reports about the relation between the morphology of syrinxes and body pain in syringomyelia associated with Chiari I malformation. To investigate this phenomenon, the relation between the location of the syrinx and body pain before and after foramen magnum decompression (FMD) were evaluated. 相似文献994.
995.
Kawashima T Wakabayashi T Kuroda T Nishide T Matsuzawa Y Shirai K 《Respirology (Carlton, Vic.)》2010,15(8):1261-1265
Pulmonary fibrosis associated with amyopathic dermatomyositis is known to have a generally aggressive course and is ultimately fatal. We report the case of a 50-year-old patient with amyopathic dermatomyositis, who developed progressive interstitial pneumonia that was unresponsive to corticosteroids and multiple immunosuppressive agents, including cyclosporine and tacrolimus hydrate. Five courses of lecithinized superoxide dismutase were administered without adverse effects. Improvements in physiological parameters, such as pulmonary function and exercise tolerance, as well as the serum Krebs von den Lungen 6 level, were observed. This is the first report of a case of steroid-refractory interstitial pneumonia treated with lecithinized superoxide dismutase. 相似文献
996.
Jun An Guo‐Gang Feng Lei Huang Tsuyoshi Kurokawa Toshiaki Nonami Tatsuro Koide Fumio Kondo Toru Komatsu Koji Tsunekawa Yoshihiro Fujiwara Hidemi Goto Hiroshi Nishikawa Tokutaro Miki Satoru Sugiyama Naohisa Ishikawa 《Hepatology research》2010,40(6):613-621
Aim: The present study was undertaken to evaluate the effects of 1‐O‐hexyl‐2,3,5‐trimethylhydroquinone (HTHQ), a synthesized vitamin E derivative, on carbon tetrachloride (CCl4)‐induced cirrhosis. Methods: Rats were treated with hypodermic injections of CCl4 twice a week to induce the hepatic cirrhosis, and given drinking water containing HTHQ or solvent. Primary cultures of rat hepatocytes were performed to evaluate the effects of HTHQ on the expression of inducible nitric oxide synthase (iNOS). Results: Masson's staining of rat livers showed fibrosis around pseudo‐lobules in the CCl4 group, the lesions being reduced in the CCl4 HTHQ group. Increases in liver tissue hydroxyproline and α1(I) collagen, α‐smooth muscle actin and iNOS induced by CCl4, were also markedly diminished by HTHQ. Furthermore, both HTHQ and vitamin E attenuated interleukin‐1β‐induced iNOS protein expression in cultured hepatocytes, the potency of HTHQ being 10‐times higher than that of vitamin E. Conclusion: HTHQ may inhibit development of hepatic cirrhosis in rats, more potently than vitamin E, by inhibiting the iNOS expression in hepatocytes. Because vitamin E has a radical scavenging action, roles of NO and peroxynitrite will be discussed in the effects of HTHQ on the fibrosis. 相似文献
997.
Arata Nakajima Ryutaku Kaneyama Hitoshi Watanabe Masazumi Murakami Koichi Nakagawa Yasuchika Aoki Masashi Yamazaki Teruo Furufu Toru Suguro 《Modern rheumatology / the Japan Rheumatism Association》2010,20(6):627-631
The case of a patient who previously had permanent acupuncture needles placed in the knee joint and had been doing well, with
no evidence of infection, but who eventually underwent a revision total knee arthroplasty due to acupuncture needle-associated
prosthetic infection is presented. The microorganism responsible for the infection was Enterococcus faecalis, a bacterium which rarely causes infection following arthroplasty. This case should be highlighted to increase the awareness
of healthcare providers to acupuncture-associated subclinical infection that may be exacerbated by surgical manipulation. 相似文献
998.
999.
Toru Beppu Masaaki Iwatsuki Hirohisa Okabe Kazutoshi Okabe Toshiro Masuda Hiromitsu Hayashi Shinichi Sugiyama Kei Horino Hiroyuki Komori Naoko Hayashi Hiroshi Takamori Takatoshi Ishiko Hideo Baba 《Journal of gastroenterology》2010,45(2):211-217
Purpose
We aimed to examine the therapeutic efficacy of ethanolamine oleate iopamidol (EOI) as an embolic material for percutaneous transhepatic portal embolization (PTPE).Methods
Eighty-two patients with liver tumors were treated with PTPE. Fifty-eight patients had hepatocellular carcinomas, 11 had liver metastases, and 13 had other liver tumors. A total of 55 patients (group E) were treated with 5% ethanolamine oleate after gelatin sponge administration. As a control, we evaluated 27 patients (group F) who were treated with fibrin glue and iodized oil. PTPE was mainly indicated before hepatic resection, for patients with high nontumorous volumetric resection ratios (the nontumorous volumetric resection ratio was estimated to be greater than 65% in patients with an indocyanine green retention ratio of 15 min (ICG R15) of 10% or less, and the nontumorous volumetric resection ratio was estimated to be greater than 40% in the patients with an ICG R15 of 10–20%).Results
All patients were successfully treated percutaneously under local anesthesia. Balloon-occluded and ipsilateral approaches were used in 81 patients (99%) and 62 (75%) patients, respectively. The rate of insufficient embolization or recanalization was significantly lower in group E (7.3%) in comparison to group F (25.9%; p < 0.05). The volumetric resection ratios, before and after PTPE, decreased from 60 to 45% in group E and from 63 to 55% in group F. The post-PTPE resection ratio was significantly decreased in group E. Before and after PTPE, average ICG R15 values changed from 17 to 27% in group E and from 18 to 26% in group F. The complication rates in groups E and F were similar (7.3 vs. 7.4%).Conclusion
EOI is a safe embolic material that can be used to induce greater liver hypertrophy, in comparison to fibrin glue, in PTPE for liver tumors. 相似文献1000.
Kazutoshi Komiya Naoko Sueoka-Aragane Akemi Sato Takashi Hisatomi Toru Sakuragi Masahiro Mitsuoka Toshimi Sato Shinichiro Hayashi Hiroto Izumi Makoto Tsuneoka Eisaburo Sueoka 《Journal of cancer research and clinical oncology》2010,136(3):465-473