目的评估新辅助化疗(NACT)治疗中晚期子宫内膜癌(EC)的疗效及比较NACT和初始肿瘤细胞减灭术(PCS)治疗结果。方法回顾性分析2010年1月至2018年12月在天津医科大学总医院妇科诊治的100例EC患者的临床资料,其中NACT组21例,PCS组79例。结果N...目的评估新辅助化疗(NACT)治疗中晚期子宫内膜癌(EC)的疗效及比较NACT和初始肿瘤细胞减灭术(PCS)治疗结果。方法回顾性分析2010年1月至2018年12月在天津医科大学总医院妇科诊治的100例EC患者的临床资料,其中NACT组21例,PCS组79例。结果NACT组总化疗有效率为61.9%;与PCS组相比,NACT组患者的术中失血量少(214.29 ml vs392.78 ml,P=0.027)、术后并发症低(19.0%vs45.5%,P=0.026)、平均住院时间更短(中位时间17.53 d vs24.55 d,P=0.001)、胃肠道毒副反应发生率低(52.38%vs93.44%,P<0.001),而平均手术时间、腹水量、是否输血、最佳减瘤手术率以及术后住院时间差异均无统计学意义(P>0.05)。此外,Kaplan-Meier显示两组PFS及OS差异均无统计学意义(49.01个月vs 75.02个月;P=0.601)及(67.86个月vs72.40个月;P=0.351)。结论对于术前评估不能达到满意的肿瘤细胞减灭术或者合并症多,体能状态较差的中晚期EC患者,NACT可作为一种有价值的替代治疗。展开更多
目的:探讨窄带成像(narrow band imaging,NBI)辅助白光经尿道膀胱肿瘤切除术(transurethral resection of bladder tumor,TURBT)治疗膀胱尿路上皮癌的效果,总结NBI手术经验。方法:选择2018年4月至2020年1月北京大学第三医院泌尿外科就...目的:探讨窄带成像(narrow band imaging,NBI)辅助白光经尿道膀胱肿瘤切除术(transurethral resection of bladder tumor,TURBT)治疗膀胱尿路上皮癌的效果,总结NBI手术经验。方法:选择2018年4月至2020年1月北京大学第三医院泌尿外科就诊膀胱尿路上皮癌的患者,麻醉后行TURBT。术中先在白光下寻找膀胱肿瘤并切除,完整取出病理标本。换成NBI,寻找可疑病灶并切除,将病理标本完整取出。两组术后标本区分开分别送病理科,记录白光下病灶的数目、位置及病理诊断结果,同时记录NBI下白光残留病灶的情况。计算白光下电切后膀胱肿瘤残留的比例,评估NBI的效果。后期病例按时间顺序平均分为3组,统计各组的临床数据,观察NBI辅助白光下TURBT的学习曲线。结果:参加研究的患者共45例,其中男32例,女13例,年龄23~89岁,平均65.2岁。45例手术均顺利完成,术后未见明显并发症及发生。术中发现9例为单发,36例为多发,肿瘤最大径0.5~4.0 cm,平均2.2 cm。白光下切除标本病理诊断均为尿路上皮癌,另有19例白光切除后NBI辅助下再次切除标本病理诊断阳性(42.2%)。按时间顺序将45例分为3组,每组15例,白光下切除后3组NBI的真阳性率分别为33.3%、46.7%、46.7%,假阳性率分别为60.0%、46.7%、26.7%。结论:TURBT是治疗膀胱尿路上皮癌的有效方式,NBI是白光的有效补充,能增加膀胱肿瘤的检出率,减少术后复发。NBI光源有一定的学习曲线,随着病例的增加,NBI下假阳性率逐渐降低,而术者NBI经验丰富后,在白光下对扁平样肿瘤的辨识度也逐渐提高,白光下肿瘤切除后NBI辅助治疗肿瘤残留率降低。展开更多
目的探讨窄带成像技术(narrow band imaging,NBI)辅助经尿道膀胱肿瘤切除术(transurethral resection of bladder tumor,TURBT)的应用价值。方法 2018年1～4月我科对12例膀胱肿瘤行NBI辅助TURBT,术中用白光和NBI分别对膀胱进行检查,切...目的探讨窄带成像技术(narrow band imaging,NBI)辅助经尿道膀胱肿瘤切除术(transurethral resection of bladder tumor,TURBT)的应用价值。方法 2018年1～4月我科对12例膀胱肿瘤行NBI辅助TURBT,术中用白光和NBI分别对膀胱进行检查,切除可疑病灶。结果术中发现8例单发肿瘤,4例多发,肿瘤最常分布于膀胱三角区(25%)、左侧壁(35%)及右侧壁(20%)。与初次电切相比,复发肿瘤多为扁平病变,NBI较白光下看到的肿瘤数量更多或范围更大。病理均为尿路上皮癌,8例低级别,4例高级别。术后住院2～12 d,平均4.6 d,未见明显并发症。12例术后每3个月复查一次膀胱镜,随访3～6个月无复发。结论 NBI辅助TURBT是治疗非浸润性膀胱癌的有效方法,特别是对于影像学不能发现的复发膀胱癌。膀胱三角区及侧壁是肿瘤的易发部位,术中应注意观察。展开更多
Aiming at the leakage problem in the compact sandstone drilling of the Keziluoyi Formation in South-west Tarim,Nano-core-emulsion was prepared by coating modified nano-SiO_(2) with nano-emulsion,its particle size D50 ...Aiming at the leakage problem in the compact sandstone drilling of the Keziluoyi Formation in South-west Tarim,Nano-core-emulsion was prepared by coating modified nano-SiO_(2) with nano-emulsion,its particle size D50 is about 100 nm,with good dispersion stability.When 0.8%Nano-core-emulsion is added to 5%bentonite slurry,the fluid loss can be reduced by 40%,and the filter cake thickness can be reduced by 84%.Using a Nano-core-emulsion to optimize the plugging performance of potassium pol-ysulfonate drilling fluid can reduce the fluid loss of the drilling fluid by 52%,the resulting filter cake is dense and tough,and the thickness is reduced by 40%.Using the pressure conduction method to evaluate the plugging rate,the plugging rate of the drilling fluid of the Nano-core-emulsion on the core of the Keziluoyi Formation is 63.4%,which is 20.9%higher than that of the field drilling fluid.According to microscopic examination and CT scanning analysis,the material has the plugging characteristics of"inner rigid support+outer soft deformation"and has demonstrated good field application results.展开更多
In view of the problems that the drilling depth can not be adjusted and the amount of liquid injection can not be accurately modulated in the local test device of maize variety breeding and disease resistance,combinin...In view of the problems that the drilling depth can not be adjusted and the amount of liquid injection can not be accurately modulated in the local test device of maize variety breeding and disease resistance,combining the test technical requirements of drilling,liquid injection and sealing of the penultimate radial pitch of maize straw from the ground,a quantitative adjustable liquid injection device for maize stalk center borehole was designed.Its structure,working principle,key technical parameters and practical application effect were elaborated in detail.The field experiment demonstrated that the quantitative adjustable liquid injection device for maize stalk center borehole could meet the requirements of the local test of maize stalk rot.展开更多
文摘目的评估新辅助化疗(NACT)治疗中晚期子宫内膜癌(EC)的疗效及比较NACT和初始肿瘤细胞减灭术(PCS)治疗结果。方法回顾性分析2010年1月至2018年12月在天津医科大学总医院妇科诊治的100例EC患者的临床资料,其中NACT组21例,PCS组79例。结果NACT组总化疗有效率为61.9%;与PCS组相比,NACT组患者的术中失血量少(214.29 ml vs392.78 ml,P=0.027)、术后并发症低(19.0%vs45.5%,P=0.026)、平均住院时间更短(中位时间17.53 d vs24.55 d,P=0.001)、胃肠道毒副反应发生率低(52.38%vs93.44%,P<0.001),而平均手术时间、腹水量、是否输血、最佳减瘤手术率以及术后住院时间差异均无统计学意义(P>0.05)。此外,Kaplan-Meier显示两组PFS及OS差异均无统计学意义(49.01个月vs 75.02个月;P=0.601)及(67.86个月vs72.40个月;P=0.351)。结论对于术前评估不能达到满意的肿瘤细胞减灭术或者合并症多,体能状态较差的中晚期EC患者,NACT可作为一种有价值的替代治疗。
文摘目的:探讨窄带成像(narrow band imaging,NBI)辅助白光经尿道膀胱肿瘤切除术(transurethral resection of bladder tumor,TURBT)治疗膀胱尿路上皮癌的效果,总结NBI手术经验。方法:选择2018年4月至2020年1月北京大学第三医院泌尿外科就诊膀胱尿路上皮癌的患者,麻醉后行TURBT。术中先在白光下寻找膀胱肿瘤并切除,完整取出病理标本。换成NBI,寻找可疑病灶并切除,将病理标本完整取出。两组术后标本区分开分别送病理科,记录白光下病灶的数目、位置及病理诊断结果,同时记录NBI下白光残留病灶的情况。计算白光下电切后膀胱肿瘤残留的比例,评估NBI的效果。后期病例按时间顺序平均分为3组,统计各组的临床数据,观察NBI辅助白光下TURBT的学习曲线。结果:参加研究的患者共45例,其中男32例,女13例,年龄23~89岁,平均65.2岁。45例手术均顺利完成,术后未见明显并发症及发生。术中发现9例为单发,36例为多发,肿瘤最大径0.5~4.0 cm,平均2.2 cm。白光下切除标本病理诊断均为尿路上皮癌,另有19例白光切除后NBI辅助下再次切除标本病理诊断阳性(42.2%)。按时间顺序将45例分为3组,每组15例,白光下切除后3组NBI的真阳性率分别为33.3%、46.7%、46.7%,假阳性率分别为60.0%、46.7%、26.7%。结论:TURBT是治疗膀胱尿路上皮癌的有效方式,NBI是白光的有效补充,能增加膀胱肿瘤的检出率,减少术后复发。NBI光源有一定的学习曲线,随着病例的增加,NBI下假阳性率逐渐降低,而术者NBI经验丰富后,在白光下对扁平样肿瘤的辨识度也逐渐提高,白光下肿瘤切除后NBI辅助治疗肿瘤残留率降低。
基金supported by Tarim Oilfield Project“Study on Formation Characteristics and Technical Countermeasures of Drilling Fluid in Yingsha and Yulong Blocks”(Project No.201019121044)the National Natural Science Foundation of China(ZX20200280).
文摘Aiming at the leakage problem in the compact sandstone drilling of the Keziluoyi Formation in South-west Tarim,Nano-core-emulsion was prepared by coating modified nano-SiO_(2) with nano-emulsion,its particle size D50 is about 100 nm,with good dispersion stability.When 0.8%Nano-core-emulsion is added to 5%bentonite slurry,the fluid loss can be reduced by 40%,and the filter cake thickness can be reduced by 84%.Using a Nano-core-emulsion to optimize the plugging performance of potassium pol-ysulfonate drilling fluid can reduce the fluid loss of the drilling fluid by 52%,the resulting filter cake is dense and tough,and the thickness is reduced by 40%.Using the pressure conduction method to evaluate the plugging rate,the plugging rate of the drilling fluid of the Nano-core-emulsion on the core of the Keziluoyi Formation is 63.4%,which is 20.9%higher than that of the field drilling fluid.According to microscopic examination and CT scanning analysis,the material has the plugging characteristics of"inner rigid support+outer soft deformation"and has demonstrated good field application results.
文摘In view of the problems that the drilling depth can not be adjusted and the amount of liquid injection can not be accurately modulated in the local test device of maize variety breeding and disease resistance,combining the test technical requirements of drilling,liquid injection and sealing of the penultimate radial pitch of maize straw from the ground,a quantitative adjustable liquid injection device for maize stalk center borehole was designed.Its structure,working principle,key technical parameters and practical application effect were elaborated in detail.The field experiment demonstrated that the quantitative adjustable liquid injection device for maize stalk center borehole could meet the requirements of the local test of maize stalk rot.
