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| 1 | Stratifying the risk of lymph node metastasis in undifferentiated-type early gastric cancer显示文摘AIM:To study how lymph node metastasis(LNM) risk is stratified in undifferentiated-type early gastric cancer(undiff-EGC) dependent on combinations of risk factors.METHODS:Five hundred and sixty-seven cases with undiff-EGC undergoing gastrectomy with lymphadenectomy were examined retrospectively.Using clinicopathological factors of patient age,location,size,an endoscopic macroscopic tumor form,ulceration,depth,histology,lymphatic involvement(LI) and venous involvement(VI),LNM risk was examined and stratified by conventional statistical analysis and datamining analysis.RESULTS:LNM was positive in 44 of 567 cases(7.8%).Univariate analysis revealed > 2 cm,protrusion,submucosal(sm),mixed type,LI and VI as significant prognostic factors and > 2 cm and LI-positive were independent factors by multivariate analysis.In preoperatively evaluable factors excluding LVI,sm and > 2 cm were independent factors.According to the depth and size,cases were categorized into the low-risk group [m and ≤ 2 cm,0%(LNM incidence)],the moderaterisk group(m and > 2 cm,5.6%; and sm and ≤ 2 cm,6.0%),and the high-risk group(sm and > 2 cm,19.3%).On the other hand,LNM occurred in 1.4% in all LI-negative cases,greatly lower than 28.2% in all LI-positive cases,and LNM incidence was low in LInegative cases even in the moderate- and high-risk groups.CONCLUSION:LNM-related factors in undiff-EGC were depth and size preoperatively while those were LI and size postoperatively.Among these factors,LI was the most significantly correlated factor. | Yukiko Asakawa Masahiko Ohtaka Shinya Maekawa Mitsuharu Fukasawa Yasuhiro Nakayama Tatsuya Yamaguchi Taisuke Inoue Tomoyoshi Uetake Minoru Sakamoto Tadashi Sato Yoshihiko Kawaguchi Hideki Fujii Kunio Mochizuki Masao Hada Toshio Oyama Tomotaka Yasumura Kosaku Omata Atsushi Nishiyama Keiichi Naito Hideo Hata Yoshiaki Haba Kazuyuki Miyata Haruhisa Saitoh Yoichi Yamadera Kazuo Miura Akira Kawaoi Tohru Abe Hajime Tsunoda Yuji Honda Masayuki Kurosaki Nobuyuki Enomoto | 2015 | World Journal of Gastroenterology2015，21，9： | 8 |
| 2 | Phase relations and equations of state of ZrO2 under high temperature and high pressure显示文摘 | Ohtaka O Fukui H Kunisada T | 2001 | Physical Review B2001，，17： | 1 |
| 3 | Advanced feederfree generation of induced pluripotent stem cells directly from blood cells显示文摘 | Trokovic R Weltner J Nishimura K Ohtaka M Nakanishi M Salomaa V | 2014 | Stem Cells Transl Med2014，3，12： | 1 |
| 4 | Suppression of rice blast using freeze-killed mycelia of biocontrol fungal candidate MKP5111B显示文摘 | Nobuaki Ohtaka Hitoshi Kawamata Kazuhiko Narisawa | 2008 | J GenPlantPathol2008，74，： | 1 |
| 5 | Appendiceal mucocele: sonographic findings显示文摘 | K. Sasaki H. Ishida T. Komatsuda T. Suzuki K. Konno M. Ohtaka M. Sato J. Ishida T. Sakai S. Watanabe | 2003 | Abdominal Imaging2003，，1： | 1 |
| 6 | Significance of early phenotypic change of glomerular podocytes detected by Pax2 in primary focal segmental glomerulosclerosis显示文摘 | Ohtaka A Ootaka T Sato H | 2002 | Am J Kidney Dis2002，39，3： | 1 |
| 7 | Two Ophiostoma species associated with bark beetles in wave-regenerated Abies veitchii forests in Japan显示文摘 | Ohtaka N Masuya H Kaneko S | 2002 | Mycoscience 43 151-1572002，，： | 1 |
| 8 | Expression of the hMLH1 gene is a possible predictor for the clinical response to 5-fluorouracil after a surgical resection in colorectal cancer 显示文摘 | Ide T Kitajima Y Ohtaka K | 2008 | Oncol Rep2008，19，： | 1 |
| 9 | Aldose reductase mRNA expression and its activity are induced by glucose in fetal rat aortic smooth muscle(A10)cells显示文摘 | Masayuki Ohtaka Yoshiyuki Hosaka el al | 1992 | Life Science1992，51，10： | 1 |
| 10 | Helicobacter pylori infection is an independent risk factor for Runx3 methylationin gastric cancer 显示文摘 | Kitajima Y Ohtaka K Mitsuno M | 2008 | Oncol Rep2008，19，1： | 1 |
| 11 | Chemical characterization of dust particles recovered from bag filters of eleetrie arc furnaces for steelmaking: Some factors influencing the formation of hexachloro- benzene 显示文摘 | TSUBOUCHI N HASHIMOTO H OHTAKA N | 2010 | Journal of Itarazardous Materials2010，183，13： | 1 |
| 12 | Thrombosis in the pulmonary veinstump atter left upper lobectomy as a possible cause of cerebral infarction显示文摘 | Ohtaka K Hida Y Kaga K | 2013 | Ann Thorac Surg2013，95，6： | 1 |
| 13 | Ischemic optic neuropathy associated with subarachnoid hemorrhage after rupture of anterior communicating artery aneurysm显示文摘 | Hara N Mukuno K Ohtaka H Shimizu K | 2003 | Ophthalmologica2003，217，： | 1 |
| 14 | New mitochondrial DNA homplasmic mutations associated with Japanese patients with type 2 diakete显示文摘 | Tawata M Ohtaka M Iwase E | 1998 | Diabetes1998，40，： | 1 |
| 15 | Structures of photochemically prepared mixed-valence polyoxovanadate clusters: obolong ^14-, superkeggin ^11- and doughnut-shaped ^16- anions 显示文摘 | Yamase T Suzuki M Ohtaka K | 1997 | J Chem Soc Dalton Trans1997，14，： | 1 |
| 16 | Precision of Internal Standard Method in HPLC Analysis显示文摘 | OHTAKA Reiko | 2003 | J Pharmaceutic Society J2003，123，5： | 1 |
| 17 | Effects of heat treatment on the symbiotic system of an aphid mycetocyte显示文摘 | Ohtaka C Ishikawa H | 1991 | Symbiosis1991，11，： | 1 |
| 18 | An analysis of female labor supply,housing demand and the saving rate in Japan显示文摘 | Yoshikawa H Ohtaka F | 1989 | European Economic Review1989，33，5： | 1 |
| 19 | Significance of early phenotypicchange of glomerular podocytes detected by Pax2 in primary focalsegmental glomerulosclerosis 显示文摘 | Ohtaka A Ootaka T Sato H | 2002 | Am J Kindey Dis2002，39，3： | 1 |
| 20 | New mitochondrial DNA homoplasmic mutations associated with Japanese patients with type 2 diabetes 显示文摘 | TAWATA M OHTAKA M IWASE E | 1998 | Diabetes1998，47，： | 1 |
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