目的:探讨单孔腹腔镜下根治性膀胱切除术联合原位回肠新膀胱术的疗效及安全性。方法:选取2017年01月至2019年12月于本中心收治的17例膀胱癌患者,其中7例患者在经尿道途径的辅助下行单孔腹腔镜根治性膀胱切除术联合原位回肠新膀胱术;另...目的:探讨单孔腹腔镜下根治性膀胱切除术联合原位回肠新膀胱术的疗效及安全性。方法:选取2017年01月至2019年12月于本中心收治的17例膀胱癌患者,其中7例患者在经尿道途径的辅助下行单孔腹腔镜根治性膀胱切除术联合原位回肠新膀胱术;另外10例为对照组,行多孔腹腔镜下根治性膀胱切除术联合原位回肠新膀胱术,并对两组患者围手术期资料、手术并发症以及术后随访情况进行分析。结果:两组共17例膀胱癌患者均顺利完成手术,无中转开放手术。两组患者的年龄、体质量指数(body mass index,BMI)等差异均无统计学意义(P>0.05)。单孔组与对照组平均手术时间分别为(341.4±52.1)min和(333.0±59.5)min,术中平均出血量分别为(206.4±104.6)mL和(190.5±82.3)mL,盆腔淋巴结清扫平均个数分别为17(7~22)个和18(12~23)个,术后平均住院天数分别为(25.1±5.4)d和(26.8±6.0)d,差异均无统计学意义(P>0.05)。而单孔组在术后VAS疼痛评分和切口满意度评分上则优于对照组(P<0.05)。其中单孔组患者术后随访12个月时患者的最大尿流量、最大膀胱容量、最大膀胱充盈量均明显比6个月时高,而随访12个月时患者的残余尿量较6个月时低,差异均具有统计学意义(P<0.05)。结论:经尿道辅助单孔腹腔镜下根治性膀胱切除术联合原位回肠新膀胱术是安全可行的,且术后的新膀胱功能较为良好。展开更多
A model for evaluating structural damage of recycled aggregate concrete filled steel tube （RCFST） columns under seismic effects is proposed in this paper. The proposed model takes the lateral deformation and the eff...A model for evaluating structural damage of recycled aggregate concrete filled steel tube （RCFST） columns under seismic effects is proposed in this paper. The proposed model takes the lateral deformation and the effect of repeated cyclic loading into account. Available test results were collected and utilized to calibrate the parameters of the proposed model. A seismic test for six RCFST columns was also performed to validate the proposed damage assessment model. The main test parameters were the recycled coarse aggregate （RCA） replacement percentage and the bond-slip property. The test results indicated that the seismic performance of the RCFST member depends on the RCA contents and their damage index increases as the RCA replacement percentage increases. It is also indicated that the damage degree of RCFST changes with the variation of the RCA replacement percentage. Finally, comparisons between the RCA contents, lateral deformation ratio and damage degree were implemented. It is suggested that an improvement procedure should be implemented in order to compensate for the performance difference between the RCFST and normal concrete filled steel tubes （CFST）.展开更多
文摘目的:探讨单孔腹腔镜下根治性膀胱切除术联合原位回肠新膀胱术的疗效及安全性。方法:选取2017年01月至2019年12月于本中心收治的17例膀胱癌患者,其中7例患者在经尿道途径的辅助下行单孔腹腔镜根治性膀胱切除术联合原位回肠新膀胱术;另外10例为对照组,行多孔腹腔镜下根治性膀胱切除术联合原位回肠新膀胱术,并对两组患者围手术期资料、手术并发症以及术后随访情况进行分析。结果:两组共17例膀胱癌患者均顺利完成手术,无中转开放手术。两组患者的年龄、体质量指数(body mass index,BMI)等差异均无统计学意义(P>0.05)。单孔组与对照组平均手术时间分别为(341.4±52.1)min和(333.0±59.5)min,术中平均出血量分别为(206.4±104.6)mL和(190.5±82.3)mL,盆腔淋巴结清扫平均个数分别为17(7~22)个和18(12~23)个,术后平均住院天数分别为(25.1±5.4)d和(26.8±6.0)d,差异均无统计学意义(P>0.05)。而单孔组在术后VAS疼痛评分和切口满意度评分上则优于对照组(P<0.05)。其中单孔组患者术后随访12个月时患者的最大尿流量、最大膀胱容量、最大膀胱充盈量均明显比6个月时高,而随访12个月时患者的残余尿量较6个月时低,差异均具有统计学意义(P<0.05)。结论:经尿道辅助单孔腹腔镜下根治性膀胱切除术联合原位回肠新膀胱术是安全可行的,且术后的新膀胱功能较为良好。
基金the National Natural Science Foundation of China under Grant Nos.51408346 and 51438007the Shanghai Science and Technique Committee under Grant No.14231201300
文摘A model for evaluating structural damage of recycled aggregate concrete filled steel tube （RCFST） columns under seismic effects is proposed in this paper. The proposed model takes the lateral deformation and the effect of repeated cyclic loading into account. Available test results were collected and utilized to calibrate the parameters of the proposed model. A seismic test for six RCFST columns was also performed to validate the proposed damage assessment model. The main test parameters were the recycled coarse aggregate （RCA） replacement percentage and the bond-slip property. The test results indicated that the seismic performance of the RCFST member depends on the RCA contents and their damage index increases as the RCA replacement percentage increases. It is also indicated that the damage degree of RCFST changes with the variation of the RCA replacement percentage. Finally, comparisons between the RCA contents, lateral deformation ratio and damage degree were implemented. It is suggested that an improvement procedure should be implemented in order to compensate for the performance difference between the RCFST and normal concrete filled steel tubes （CFST）.
