To evaluate the usefulness of total colonoscopy (TCS) for patients undergoing gastric endoscopic submucosal dissection (ESD) and to assess risk factors for colorectal neoplasms.METHODSOf the 263 patients who underwent...To evaluate the usefulness of total colonoscopy (TCS) for patients undergoing gastric endoscopic submucosal dissection (ESD) and to assess risk factors for colorectal neoplasms.METHODSOf the 263 patients who underwent ESD at our department between May 2010 and December 2013, 172 patients undergoing TCS during a one-year period before and after ESD were targeted. After excluding patients with a history of surgery or endoscopic therapy for colorectal neoplasms, 158 patients were analyzed. Of the 868 asymptomatic patients who underwent TCS during the same period because of positive fecal immunochemical test (FIT) results, 158 patients with no history of either surgery or endoscopic therapy for colorectal neoplasms who were matched for age and sex served as the control group for comparison.RESULTSTCS revealed adenoma less than 10 mm in 53 patients (33.6%), advanced adenoma in 17 (10.8%), early colorectal cancer in 5 (3.2%), and advanced colorectal cancer in 4 (2.5%). When the presence or absence of adenoma less than 10 mm, advanced adenoma, and colorectal cancer and the number of adenomas were compared between patients undergoing ESD and FIT-positive patients, there were no statistically significant differences in any of the parameters assessed. The patients undergoing ESD appeared to have the same risk of colorectal neoplasms as the FIT-positive patients. Colorectal neoplasms were clearly more common in men than in women (P = 0.031). Advanced adenoma and cancer were significantly more frequent in patients with at least two of the following conditions: hypertension, dyslipidemia, and diabetes mellitus (P = 0.019).CONCLUSIONIn patients undergoing gastric ESD, TCS appears to be important for detecting synchronous double neoplasms. Advanced adenoma and cancer were more common in patients with at least two of the following conditions: hypertension, dyslipidemia, and diabetes mellitus. Caution is therefore especially warranted in patients with these risk factors.展开更多
某500 k V变电站融冰兼静止无功补偿装置(SVC)用换流变阀侧电压互感器(PT)发生故障,基于故障PT的解剖试验及系统运行情况的仿真数据,对PT的故障机理进行了分析,产生原因是由于大量的谐波及直流偏置分量,导致PT二次绕组绝缘损坏过热故障...某500 k V变电站融冰兼静止无功补偿装置(SVC)用换流变阀侧电压互感器(PT)发生故障,基于故障PT的解剖试验及系统运行情况的仿真数据,对PT的故障机理进行了分析,产生原因是由于大量的谐波及直流偏置分量,导致PT二次绕组绝缘损坏过热故障。提出通过加装滤波及直流偏置装置或改变PT的接线方式以及提高PT自身的绝缘水平、局部放电水平等措施来抑制故障的发生。展开更多
目的 探讨腹腔镜左半结肠癌根治术中采用肠系膜下动脉优先解剖联合完全内侧入路(Priority Anatomy of the Inferior Mesenteric Artery Combined with Complete Medial Approach,IMA-CMA)技术对淋巴结清扫的影响。方法 回顾性选取2019年...目的 探讨腹腔镜左半结肠癌根治术中采用肠系膜下动脉优先解剖联合完全内侧入路(Priority Anatomy of the Inferior Mesenteric Artery Combined with Complete Medial Approach,IMA-CMA)技术对淋巴结清扫的影响。方法 回顾性选取2019年5月-2023年5月南平第一医院治疗的81例腹腔镜左半结肠癌根治术患者的临床资料,根据手术方法不同分为IMA-CMA组和对照组,其中IMA-CMA组44例,对照组37例。对照组采用传统入路技术,IMA-CMA组采用IMA-CMA技术,比较两组患者的手术相关指标、淋巴结清扫情况、术后肠功能恢复情况、并发症发生情况及复发率和转移率。结果 同对照组相比较,IMA-CMA组手术时间较短,术中出血量较低,253组淋巴结清扫数目较多,差异有统计学意义(P均<0.05)。同对照组相比较,IMA-CMA组腹痛腹胀持续时间、术后排便时间及术后排气时间均较短,差异有统计学意义(P均<0.05)。IMA-CMA组并发症发生率为4.55%,低于对照组的18.92%,差异有统计学意义(χ^(2)=4.204,P<0.05)。术后1年,IMA-CMA组和对照组复发率、转移率比较,差异无统计学意义(P均>0.05)。结论 腹腔镜左半结肠癌根治术中采用IMA-CMA技术能够缩短手术时间,减少术中出血量,对淋巴结的清扫情况更佳,且可以改善术后肠功能恢复情况及并发症发生情况,不增加复发和转移风险。展开更多
文摘To evaluate the usefulness of total colonoscopy (TCS) for patients undergoing gastric endoscopic submucosal dissection (ESD) and to assess risk factors for colorectal neoplasms.METHODSOf the 263 patients who underwent ESD at our department between May 2010 and December 2013, 172 patients undergoing TCS during a one-year period before and after ESD were targeted. After excluding patients with a history of surgery or endoscopic therapy for colorectal neoplasms, 158 patients were analyzed. Of the 868 asymptomatic patients who underwent TCS during the same period because of positive fecal immunochemical test (FIT) results, 158 patients with no history of either surgery or endoscopic therapy for colorectal neoplasms who were matched for age and sex served as the control group for comparison.RESULTSTCS revealed adenoma less than 10 mm in 53 patients (33.6%), advanced adenoma in 17 (10.8%), early colorectal cancer in 5 (3.2%), and advanced colorectal cancer in 4 (2.5%). When the presence or absence of adenoma less than 10 mm, advanced adenoma, and colorectal cancer and the number of adenomas were compared between patients undergoing ESD and FIT-positive patients, there were no statistically significant differences in any of the parameters assessed. The patients undergoing ESD appeared to have the same risk of colorectal neoplasms as the FIT-positive patients. Colorectal neoplasms were clearly more common in men than in women (P = 0.031). Advanced adenoma and cancer were significantly more frequent in patients with at least two of the following conditions: hypertension, dyslipidemia, and diabetes mellitus (P = 0.019).CONCLUSIONIn patients undergoing gastric ESD, TCS appears to be important for detecting synchronous double neoplasms. Advanced adenoma and cancer were more common in patients with at least two of the following conditions: hypertension, dyslipidemia, and diabetes mellitus. Caution is therefore especially warranted in patients with these risk factors.
文摘某500 k V变电站融冰兼静止无功补偿装置(SVC)用换流变阀侧电压互感器(PT)发生故障,基于故障PT的解剖试验及系统运行情况的仿真数据,对PT的故障机理进行了分析,产生原因是由于大量的谐波及直流偏置分量,导致PT二次绕组绝缘损坏过热故障。提出通过加装滤波及直流偏置装置或改变PT的接线方式以及提高PT自身的绝缘水平、局部放电水平等措施来抑制故障的发生。
