The fullerene complex, η 2 C 60 [Ru(NO)(PPh 3)] 2, has been prepared by the reaction of C 60 with Ru(NO) 2(PPh 3) 2 under a nitrogen atmosphere and refluxing. The new complex was characterized by means of elemental a...The fullerene complex, η 2 C 60 [Ru(NO)(PPh 3)] 2, has been prepared by the reaction of C 60 with Ru(NO) 2(PPh 3) 2 under a nitrogen atmosphere and refluxing. The new complex was characterized by means of elemental analysis, IR, XPS, electronic spectra and 31 P NMR. The results show that the complex of η 2 form can be formed by C 60 bonding to Ru(NO) 2(PPh 3) 2 in the σ π way and there is hyperconjugation effect in the molecule. So electrons will flow easier and photoelectric effect for this new compound is expected. In addition, the structure of the complex has been supposed. The ruthenium is 4 coordinate in the complex, bonding to two carbon atoms, to one PPh 3 and to one NO.展开更多
目的:对比研究选择性痔上黏膜钉合术(tissueselecting therapy stapler,TST)和痔上黏膜环切术(procedure for prolapse and hemorrhoids,PPH)治疗混合痔的临床疗效及并发症.方法:将182例混合痔患者随机分为试验组和对照组,试验组91例,采...目的:对比研究选择性痔上黏膜钉合术(tissueselecting therapy stapler,TST)和痔上黏膜环切术(procedure for prolapse and hemorrhoids,PPH)治疗混合痔的临床疗效及并发症.方法:将182例混合痔患者随机分为试验组和对照组,试验组91例,采用TST术,对照组91例,采用PPH术,比较两组的疗效及并发症发生情况.结果:两组在疗效、住院时间及费用、术后疼痛评分、肛门坠胀评分、尿潴留、术后吻合口出血和肛门失禁方面差异无统计学意义(P>0.05).试验组术中出血量、术中吻合口需缝扎止血针数、手术时间均少于对照组,急便感、直肠狭窄发生的比例低于对照组,比较差异具有统计学意义(P<0.05).两组的总有效率均为100%,经过18 mo随访,试验组有5例复发,对照组有3例复发.差异无统计学意义(P>0.05).结论:TST术和PPH术治疗混合痔疗效相似,但TST术式并发症发生率相对较低,具有出血少、手术时间短、急便感少和无直肠狭窄等优点.展开更多
目的回顾性比较超选择直肠上动脉栓塞术(super-selective superior rectal artery branch embolization,SRAE)与吻合器痔上黏膜环切钉合术(procedure for prolapse and hemorrhoids,PPH)的疗效、围手术期安全性和预后。方法回顾性分析2...目的回顾性比较超选择直肠上动脉栓塞术(super-selective superior rectal artery branch embolization,SRAE)与吻合器痔上黏膜环切钉合术(procedure for prolapse and hemorrhoids,PPH)的疗效、围手术期安全性和预后。方法回顾性分析2017年6月—2018年12月苏州大学附属第二医院进行的37例SRAE和60例PPH患者,对比分析两组手术时间、出血量、血常规指标、住院时间、住院费用、切口感染出血、术后出血、术后疼痛发热、术后肛管狭窄、便秘发生、抗生素使用及12个月随访结果等情况。结果SRAE组患者年龄更高(P=0.009),多伴有更多高血压、糖尿病及心功能不全(P<0.001),手术时间短,术中出血量少,术后疼痛轻微、出血少,术后发热少、使用抗生素少,无术后肛管狭窄发生,住院时间短(P<0.001),但住院费用较PPH组高(P<0.001)。两组术后便秘发生率(P=0.067)、术前和术后血常规(P=0.154,P=0.278)差异无显著统计学意义。采用术后痔复发或再次手术作为联合终点,经Kaplan-Meier曲线联合Log-rank检验结果显示两组差异无显著统计学意义(P=0.56)。结论SRAE治疗痔安全可靠,在减少感染出血和术后疼痛等并发症方面较PPH有明显优势,但远期效果并不优于临床上其他常规的微创手术。因此,SRAE仅为高危患者提供了一个有益的治疗选择。展开更多
文摘The fullerene complex, η 2 C 60 [Ru(NO)(PPh 3)] 2, has been prepared by the reaction of C 60 with Ru(NO) 2(PPh 3) 2 under a nitrogen atmosphere and refluxing. The new complex was characterized by means of elemental analysis, IR, XPS, electronic spectra and 31 P NMR. The results show that the complex of η 2 form can be formed by C 60 bonding to Ru(NO) 2(PPh 3) 2 in the σ π way and there is hyperconjugation effect in the molecule. So electrons will flow easier and photoelectric effect for this new compound is expected. In addition, the structure of the complex has been supposed. The ruthenium is 4 coordinate in the complex, bonding to two carbon atoms, to one PPh 3 and to one NO.
文摘目的:对比研究选择性痔上黏膜钉合术(tissueselecting therapy stapler,TST)和痔上黏膜环切术(procedure for prolapse and hemorrhoids,PPH)治疗混合痔的临床疗效及并发症.方法:将182例混合痔患者随机分为试验组和对照组,试验组91例,采用TST术,对照组91例,采用PPH术,比较两组的疗效及并发症发生情况.结果:两组在疗效、住院时间及费用、术后疼痛评分、肛门坠胀评分、尿潴留、术后吻合口出血和肛门失禁方面差异无统计学意义(P>0.05).试验组术中出血量、术中吻合口需缝扎止血针数、手术时间均少于对照组,急便感、直肠狭窄发生的比例低于对照组,比较差异具有统计学意义(P<0.05).两组的总有效率均为100%,经过18 mo随访,试验组有5例复发,对照组有3例复发.差异无统计学意义(P>0.05).结论:TST术和PPH术治疗混合痔疗效相似,但TST术式并发症发生率相对较低,具有出血少、手术时间短、急便感少和无直肠狭窄等优点.
文摘目的回顾性比较超选择直肠上动脉栓塞术(super-selective superior rectal artery branch embolization,SRAE)与吻合器痔上黏膜环切钉合术(procedure for prolapse and hemorrhoids,PPH)的疗效、围手术期安全性和预后。方法回顾性分析2017年6月—2018年12月苏州大学附属第二医院进行的37例SRAE和60例PPH患者,对比分析两组手术时间、出血量、血常规指标、住院时间、住院费用、切口感染出血、术后出血、术后疼痛发热、术后肛管狭窄、便秘发生、抗生素使用及12个月随访结果等情况。结果SRAE组患者年龄更高(P=0.009),多伴有更多高血压、糖尿病及心功能不全(P<0.001),手术时间短,术中出血量少,术后疼痛轻微、出血少,术后发热少、使用抗生素少,无术后肛管狭窄发生,住院时间短(P<0.001),但住院费用较PPH组高(P<0.001)。两组术后便秘发生率(P=0.067)、术前和术后血常规(P=0.154,P=0.278)差异无显著统计学意义。采用术后痔复发或再次手术作为联合终点,经Kaplan-Meier曲线联合Log-rank检验结果显示两组差异无显著统计学意义(P=0.56)。结论SRAE治疗痔安全可靠,在减少感染出血和术后疼痛等并发症方面较PPH有明显优势,但远期效果并不优于临床上其他常规的微创手术。因此,SRAE仅为高危患者提供了一个有益的治疗选择。
