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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 | Surveillance of viral gastroenteritis in Japan:pediatric cases and outbreak incidents显示文摘 | Inouye S Yamashita K Yamadera S | 2000 | J Infect Dis2000，181，： | 1 |
| 3 | Surveillance of viral gastroenteritis in Japan: pediatric cases and outbreak incidents 显示文摘 | Inouye S Yamashita K Yamadera S | 2000 | J Infect Dis2000，181，： | 1 |
| 4 | The Determination of Randomness in Copolyesters by High Resolution Nuclear Magnetic Resonance显示文摘 | Yamadera R Murato M | 1967 | Appl Polym Sci1967，，5： | 1 |
| 5 | Thin film magnetic field sensor utilizing Magneto Impedance effect显示文摘 | Y. Nishibe H. Yamadera N. Ohta K. Tsukada Y. Nonomura | 2000 | Sensors & Actuators: A Physical2000，，1： | 1 |
| 6 | Adult-onset multiple acyl CoA dehydrogenation deficiency associated with an abnormal isoenzyme pattern of serum lactate dehydrogenase显示文摘 | Sugai F Baba K Toyooka K Liang W Nishiol I Yamadera M | 2012 | Neuromuscul Disord2012，22，2： | 1 |
| 7 | Enolase, a cellular glycolyt- ic enzyme,is required for efficient transcription of sendai virus ge- nome显示文摘 | Ogino T Yamadera T Nonaka T | 2001 | Biochem Biophys Res Commun2001，285，2： | 1 |
| 8 | Relationship between the effects of a hypnotic drug, zopiclone, on polysomnography and on daytime EEGs 显示文摘 | Yamadera H Kato M Tsukahara Y | 1997 | Neuropsychobiology1997，35，3： | 1 |
| 9 | Giant magneto-impedance effect in layered thin films显示文摘 | Yamadera H Morikawa T Nishibe Y | 1997 | IEEE Trans Magn1997，33，5： | 1 |
| 10 | 显示文摘 | Morikawa T Nishibe Y Yamadera H | 1996 | IEEE Trans Magn1996，32，： | 1 |
| 11 | 显示文摘 | Morikawa T Nishibe Y Yamadera H | 1997 | IEEE Trans Magn1997，33，： | 1 |
| 12 | The difference of pull-out resistances between the roots of transplanting plants and seeding plants显示文摘 | Yoshinari Yamadera Yang X T Toshitaka Miyazaki | 2002 | The Japanese Society Revegetation Technology2002，28，1： | 1 |
| 13 | Giant Magneto-Impedance effect in layered thin films 显示文摘 | Morikawa T Nishibe Y Yamadera H | 1997 | IEEE Tram Magn1997，33，： | 1 |
| 14 | Enhancement of giant magneto-impedance in layered film by insulator separation显示文摘 | Morikawa T Nishibe Y Yamadera H | 1996 | IEEE Trans Magn1996，32，： | 1 |
| 15 | Giant magneto-impedance effect in layered thin films显示文摘 | Morikawa T Nishibe Y Yamadera H | 1997 | IEEE Trans Magn1997，33，： | 1 |
| 16 | Sleep architectures of obstructive sleep apnea syndrome in the young child显示文摘 | Chiba S Itoh H | 2000 | Psychiatry Clin Neurosci2000，54，3： | 1 |
| 17 | Thin film magnetic field sensor utilizing magneto impedance effect显示文摘 | Nishibe Y Yamadera H Ohta N | 2000 | Sens Actuat2000，82，： | 1 |
| 18 | Enhancement of giant magneto-impedance in layered film by insulator separation显示文摘 | MORIKAWA T NISHIBE Y YAMADERA H | 1996 | IEEE Trans Magn1996，32，： | 1 |
| 19 | 显示文摘 | Morikawa T Nishibe Y Yamadera H | 1996 | IEEE Trans Magn1996，32，： | 1 |
| 20 | Comparisons of short-term efficacy between individual and group cognitive behavioral therapy for primary insomnia显示文摘 | Yamadera W Sato M Harada D | 2013 | Sleep Biol Rhythms2013，11，3： | 1 |
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