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| 1 | Concurrent removal of intravitreal lens fragments after phacoemulsification with pars plana vitrectomy prevents development of retinal detachment显示文摘AIM: To evaluate the outcomes of 'concurrent vitrectomy' to retrieve dislocated lens fragment during phacoemulsification.METHODS: In a retrospective, observational case series, data of patients who underwent 'concurrent' pars plana vitrectomy(PPV) for dislocated lens fragments between the period 2000 and 2008 were reviewed. Data collected included patient demographics, pre-operative visual acuity, intra-operative occurrence of retinal breaks, duration of follow up, post-operative intraocular pressure, final best-corrected visual acuity(BCVA),presence of cystoid macular edema(CME) and occurrence of rhegmatogenous retinal detachment(RRD).· RESULTS: A total of 58 eyes of 58 patients were included in the study. At 12 mo the mean postoperative BCVA was log MAR 0.17(20/30) with a range of log MAR0 to 0.69(20/20 to 20/100), with 96.6%(56/58) of patients showing post- operative improvement in visual acuity(P =0.005). None of the patients developed postoperative retinal detachment, endophthalmitis or non-resolving uveitis at 12 mo.CONCLUSION: Our study results suggest concurrent PPV for retained lens fragments after cataract surgery is beneficial and may decrease the risk of glaucoma and prevent development of RRD. | Kakarla V Chalam Ravi K Murthy Joshua C Priluck Vijay Khetpal Shailesh K Gupta | 2015 | International Journal of Ophthalmology(English edition)2015，8，1： | 4 |
| 2 | 深部俯冲板片三维构造重建及其几何学、运动学研究——以汤加—克马德克地区俯冲板片为例显示文摘西南太平洋板块与澳大利亚板块之间的汤加-克马德克俯冲带,是研究地球动力学最重要的区域之一.本文研究根据MIT~P08地震数据,结合板块构造边界、地震活动分布、海岸地形数据等,基于GOCAD软件平台建立三维地震层析成像,对西南太平洋板块的汤加-克马德克俯冲板片进行三维解释.地震层析成像显示汤加-斐济地区地幔至少存在三个“高速”异常体.早期汤加-克马德克俯冲板片穿过地幔转换带,并进入下地幔,最大深度达1600km.三维构造模型揭示了汤加克马德克板片在深度600~800km处存在断折形变,该俯冲板片去褶皱恢复后,测量其俯冲的最大位移达2600km.汤加-克马德克板片开始快速俯冲的时间至少在30Ma之前,平均移动速率约为68~104mrn/a.俯冲板片三维构造重建和恢复,可以有效揭示俯冲板片几何学、运动学,为研究深源地震成因、地球深部变化过程和动力学机制提供约束. | 鲁人齐 John Suppe 何登发 Jonny Wu Ravi V S Kanda 刘波 陈于高 | 2013 | 地球物理学报2013，56，11： | 3 |
| 3 | Para-aortic lymph node involvement should not be a contraindication to resection of pancreatic ductal adenocarcinoma显示文摘BACKGROUND Para-aortic lymph nodes(PALN)are found in the aortocaval groove and they are staged as metastatic disease if involved by pancreatic ductal adenocarcinoma(PDAC).The data in the literature is conflicting with some studies having associated PALN involvement with poor prognosis,while others not sharing the same results.PALN resection is not included in the standard lymphadenectomy during pancreatic resections as per the International Study Group for Pancreatic Surgery and there is no consensus on the management of these cases.AIM To investigate the prognostic significance of PALN metastases on the oncological outcomes after resection for PDAC.METHODS This is a retrospective cohort study of data retrieved from a prospectively maintained database on consecutive patients undergoing pancreatectomies for PDAC where PALN was sampled between 2011 and 2020.Statistical comparison of the data between PALN+and PALN-subgroups,survival analysis with the Kaplan-Meier method and risk analysis with univariable and multivariable time to event Cox regression analysis were performed,specifically assessing oncological outcomes such as median overall survival(OS)and disease-free survival(DFS).RESULTS 81 cases had PALN sampling and 17(21%)were positive.Pathological N stage was significantly different between PALN+and PALN-patients(P=0.005),while no difference was observed in any of the other characteristics.Preoperative imaging diagnosed PALN positivity in one case.OS and DFS were comparable between PALN+and PALN-patients with lymph node positive disease(OS:13.2 mo vs 18.8 mo,P=0.161;DFS:13 mo vs 16.4 mo,P=0.179).No difference in OS or DFS was identified between PALN positive and negative patients when they received chemotherapy either in the neoadjuvant or in the adjuvant setting(OS:23.4 mo vs 20.6 mo,P=0.192;DFS:23.9 mo vs 20.5 mo,P=0.718).On the contrary,when patients did not receive chemotherapy,PALN disease had substantially shorter OS(5.5 mo vs 14.2 mo;P=0.015)and DFS(4.4 mo vs 9.8 mo;P<0.001).PALN involvement was not identified as an independent predictor for OS after multivariable analysis,while it was for DFS doubling the risk of recurrence.CONCLUSION PALN involvement does not affect OS when patients complete the indicated treatment pathway for PDAC,surgery and chemotherapy,and should not be considered as a contraindication to resection. | Rupaly Pande Shafiq Chughtai Manish Ahuja Rachel Brown David C Bartlett Bobby V Dasari Ravi Marudanayagam Darius Mirza Keith Roberts John Isaac Robert P Sutcliffe Nikolaos A Chatzizacharias | 2022 | World Journal of Gastrointestinal Surgery2022，14，5： | 2 |
| 4 | Quantitative essential amino acid requirements for growth of catla,Catla catla(Hamilton)显示文摘 | Ravi J Devaraj K V | 1991 | Aquaculture1991，96，： | 1 |
| 5 | Notch signaling induces cell cycle arrest in small cell lung cancer cells 显示文摘 | Sriuranpong V Borges MW Ravi RK | 2001 | Cancer Res2001，61，7： | 1 |
| 6 | Abatement of nitrogen oxides in a catalytic reactor enhanced by nonther- mal plasma discharge 显示文摘 | Mok Young Sun Ravi V Kang Ho Chul | 2003 | IEEE Transactions on Plasma Science2003，31，1： | 1 |
| 7 | A review of chitin and chitosan applications 显示文摘 | Majeti N V Ravi K | 2000 | Reactive and Functional Polymers2000，46，： | 1 |
| 8 | Synthesis of nanocrystalline Mn3O4 at 100 ℃显示文摘 | V Ravi | 2005 | Materials Research Bulletin2005，40，： | 1 |
| 9 | Role of posterior stabilization in the management of tuberculosis of the dorsal andlumbar spine显示文摘 | Sundararaj GD Behera S Ravi V | 2003 | J Bone joint Surg(Br)2003，85，1： | 1 |
| 10 | Re-emergence of chikungunya virus in India Indian显示文摘 | Ravi V | 2006 | J Med Microbiol2006，，24： | 1 |
| 11 | Segmented flow synthesis of Ag nanoparticles in spiral microreactor :Role of continuous and disperzsed phase显示文摘 | Ravi Kumar D V Prasad B L V Kulkami A A | 2012 | Chemical Engineering Journal2012，192，： | 1 |
| 12 | Anatomical studies on tuberization in sweet potato under water deficit stress and stress free con- ditions 显示文摘 | Ravi V Indira P | 1996 | Tropical Root Tuber Crops1996，22，： | 1 |
| 13 | Adipic acid assisted sol-gel synthesis of Li2MnSiO4 nanoparticles with improved lithium storage properties显示文摘 | Aravindan V Karthikeyan K Ravi S | | 0，，35： | 1 |
| 14 | Development and evaluation of a competitive ELISA for estimation of rabies neutralizing antibodies after post-exposure rabies vaccination in humans 显示文摘 | Muhamuda K Madhusudana S N Ravi V | 2007 | Int J Infect Dis2007，11，5： | 1 |
| 15 | Notch signaling induces cell cycle arrest in small cell lung cancer cells显示文摘 | Sriuranpong V Borges MW Ravi RK | 2001 | Cancer Res2001，61，7： | 1 |
| 16 | Effect of hafnium incorporation on the crystallization and mechanical behavior of a Zr-based bulk amorphous alloy 显示文摘 | Baldwin F Ravi Kumar N V Das K | 2008 | Materials Science and Engineering A2008，477，12： | 1 |
| 17 | A review of chitin and chitosan applications 显示文摘 | Majeti N V Ravi Kumar | 2000 | Reactive & Functional Polymers2000，46，： | 1 |
| 18 | Approximation algorithms for certain network improvement显示文摘 | Krumke S O Marthe M V Ravi R | 1998 | Journal of Combinatorial Optimization1998，21，7： | 1 |
| 19 | Grain refinement in AZ91 magnesium alloy during thermomechanical processing显示文摘 | RAVI KUMAR N V BLANDIN J J DESRAYAUD C | 2003 | Materials and Engineering A2003，359，： | 1 |
| 20 | A New Model Reference Adaptive Controller for Four Quadrant Vector Controlled Induction Motor Drives显示文摘 | A V Ravi Teja C Chakraborty S Maiti Y Hori | 2012 | IEEE Transactions on Industrial Elec- tronics2012，59，： | 1 |
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