目的比较机器人辅助与腹腔镜下大子宫切除术患者术后并发症的发生率。方法回顾性分析武汉大学人民医院2020年1月至2021年4月病历资料,符合纳入、排除标准的病例共计170例,按手术方案分为机器人组(n=54)与腹腔镜组(n=116)。收集患者年龄...目的比较机器人辅助与腹腔镜下大子宫切除术患者术后并发症的发生率。方法回顾性分析武汉大学人民医院2020年1月至2021年4月病历资料,符合纳入、排除标准的病例共计170例,按手术方案分为机器人组(n=54)与腹腔镜组(n=116)。收集患者年龄、体质量指数(body mass index,BMI)、原发病、有无糖尿病、ASA麻醉评分、国际标准化比值(international standard ratio,INR)、肌酐、子宫大小、麻醉时长、手术时长、失血量、输血量、是否中转开腹、住院总天数、术后通气天数、术后1日疼痛评分、严重并发症发生率、中等并发症发生率及轻微并发症发生率等资料进行比较。结果两组患者年龄、BMI、原发病、有无糖尿病、ASA麻醉评分、INR、肌酐、子宫大小、是否中转开腹、住院总天数、术后通气天数、术后1日疼痛评分、严重并发症发生率、轻微并发症发生率结果比较,差异无统计学意义(P>0.05)。但两组患者手术时长、麻醉时长、失血量与中等并发症发生率具有统计学差异(P<0.05)。结论相比腹腔镜下子宫切除术,大子宫患者行机器人辅助子宫切除术可以缩短手术时长和麻醉时长、减少失血量、降低中等并发症的发生率。展开更多
Seawater pumped storage systems have bright prospect for energy storage in the coming years.The operational conditions of seawater pumped storage system are complex and harsh,where metal materials suff er from severe ...Seawater pumped storage systems have bright prospect for energy storage in the coming years.The operational conditions of seawater pumped storage system are complex and harsh,where metal materials suff er from severe general and local corrosion.The corrosion behavior of Q235B carbon steel in simulated seawater pumped storage system under operational conditions was studied by potentiodynamic polarization,cyclic potentiodynamic polarization,and scanning electron microscope(SEM).The results confi rm that the working pressure aff ected the corrosion resistance of Q235B carbon steel during the whole immersion period.The pressure promoted the electrochemical reaction of corrosion process and the corrosion rate increased with pressure at the initial immersion period.However,the stable rust layer formed after longtime immersion at diff erent pressures increased the corrosion resistance of carbon steel,and decreased the corrosion degree of carbon steel.Meanwhile,the working pressure aff ected the pitting corrosion behavior of Q235B carbon steel during the whole immersion period.The pitting corrosion potential was more negative and the tendency of pitting corrosion was higher at 4 MPa during the whole immersion period.However,pressure also accelerated the formation rate of protective rust layer on the steel surface.Q235B carbon steel has higher susceptibility to pitting corrosion at 4 MPa in the static seawater.展开更多
文摘目的比较机器人辅助与腹腔镜下大子宫切除术患者术后并发症的发生率。方法回顾性分析武汉大学人民医院2020年1月至2021年4月病历资料,符合纳入、排除标准的病例共计170例,按手术方案分为机器人组(n=54)与腹腔镜组(n=116)。收集患者年龄、体质量指数(body mass index,BMI)、原发病、有无糖尿病、ASA麻醉评分、国际标准化比值(international standard ratio,INR)、肌酐、子宫大小、麻醉时长、手术时长、失血量、输血量、是否中转开腹、住院总天数、术后通气天数、术后1日疼痛评分、严重并发症发生率、中等并发症发生率及轻微并发症发生率等资料进行比较。结果两组患者年龄、BMI、原发病、有无糖尿病、ASA麻醉评分、INR、肌酐、子宫大小、是否中转开腹、住院总天数、术后通气天数、术后1日疼痛评分、严重并发症发生率、轻微并发症发生率结果比较,差异无统计学意义(P>0.05)。但两组患者手术时长、麻醉时长、失血量与中等并发症发生率具有统计学差异(P<0.05)。结论相比腹腔镜下子宫切除术,大子宫患者行机器人辅助子宫切除术可以缩短手术时长和麻醉时长、减少失血量、降低中等并发症的发生率。
基金Supported by the National Key R&D Program of China(Nos.2017YFB0903700,2017YFB0903702)。
文摘Seawater pumped storage systems have bright prospect for energy storage in the coming years.The operational conditions of seawater pumped storage system are complex and harsh,where metal materials suff er from severe general and local corrosion.The corrosion behavior of Q235B carbon steel in simulated seawater pumped storage system under operational conditions was studied by potentiodynamic polarization,cyclic potentiodynamic polarization,and scanning electron microscope(SEM).The results confi rm that the working pressure aff ected the corrosion resistance of Q235B carbon steel during the whole immersion period.The pressure promoted the electrochemical reaction of corrosion process and the corrosion rate increased with pressure at the initial immersion period.However,the stable rust layer formed after longtime immersion at diff erent pressures increased the corrosion resistance of carbon steel,and decreased the corrosion degree of carbon steel.Meanwhile,the working pressure aff ected the pitting corrosion behavior of Q235B carbon steel during the whole immersion period.The pitting corrosion potential was more negative and the tendency of pitting corrosion was higher at 4 MPa during the whole immersion period.However,pressure also accelerated the formation rate of protective rust layer on the steel surface.Q235B carbon steel has higher susceptibility to pitting corrosion at 4 MPa in the static seawater.
