Saccular extended obstruction is generated when the anastomotic site of functional end-to-end anastomosis is extended saccularly and blocked by intestinal contents. This is a specific complication of functional end-to...Saccular extended obstruction is generated when the anastomotic site of functional end-to-end anastomosis is extended saccularly and blocked by intestinal contents. This is a specific complication of functional end-to-end anastomosis. Saccular extended obstruction of the anastomotic site of func-tional end-to-end anastomosis causes postoperative intestinal obstruction. Saccular extended obstruction places a heavy burden on patients because surgery is necessary for treatment of intestinal obstruction due to saccular extended obstruction. However, saccular extended obstruction is not a commonly recognized complication. The greatest factor contributing to the development of saccular extended obstruction is an acute angle between the portions of the intestinal tract oral and aboral to the anastomotic site. When this angle approaches obtuse angle, preferably close to a straight line, stagnation of the intestinal contents does not occur at the anastomotic site of functional end-to-end anastomosis and saccular extended obstruction is avoided. For making the angle of anastomotic intestinal tracts obtuse or straight, it may be effective that the entry hole of stapling suture instrument creating the anastomotic stoma is closed perpendicular to the intestinal axis.展开更多
Platelet concentration near the blood vessel wall is one of the major factors in the adhesion of platelets to the wall.In our previous studies,it was found that swirling flows could suppress platelet adhesion in small...Platelet concentration near the blood vessel wall is one of the major factors in the adhesion of platelets to the wall.In our previous studies,it was found that swirling flows could suppress platelet adhesion in small-caliber artificial grafts and end-to-end anastomoses.In order to better understand the beneficial effect of the swirling flow,we numerically analyzed the near-wall concentration distribution of platelets in a straight tube and a sudden tubular expansion tube under both swirling flow and normal flow conditions.The numerical models were created based on our previous experimental studies.The simulation results revealed that when compared with the normal flow,the swirling flow could significantly reduce the near-wall concentration of platelets in both the straight tube and the expansion tube.The present numerical study therefore indicates that the reduction in platelet adhesion under swirling flow conditions in small-caliber arterial grafts,or in end-to-end anastomoses as observed in our previous experimental study,was possibly through a mechanism of platelet transport,in which the swirling flow reduced the near-wall concentration of platelets.展开更多
目的评估浆肌层吻合法在结肠吻合中的安全性和有效性。方法选取2017年8月至2018年8月粤北人民医院收治的行结肠吻合的结肠癌患者48例,按随机数字表法分为浆肌层吻合组(n=24)和二层吻合组(n=24),浆肌层吻合组行Layer to layer缝合法,二...目的评估浆肌层吻合法在结肠吻合中的安全性和有效性。方法选取2017年8月至2018年8月粤北人民医院收治的行结肠吻合的结肠癌患者48例,按随机数字表法分为浆肌层吻合组(n=24)和二层吻合组(n=24),浆肌层吻合组行Layer to layer缝合法,二层吻合组行Albert-gambee缝合法,观察并比较两组患者围术期指标及并发症发生情况。结果浆肌层吻合组与二层吻合组吻合时出血量、吻合口漏发生率、首次肛门排气时间、首次排便时间及术后住院时间分别为(19.25±3.75)mL和(19.29±4.57)mL、8.3%和4.7%、(4.00±1.18)d和(3.79±1.18)d、(7.13±1.39)d和(7.63±1.38)d、(11.29±1.94)d和(11.71±2.26)d,两组相比,差异无统计学意义(P>0.05);浆肌层吻合组的吻合时间为(11.83±1.93)min,较二层吻合组的(21.29±1.94)min明显缩短,差异有统计学意义(P<0.05)。结论结肠吻合中运用浆肌层吻合法安全可靠。展开更多
文摘Saccular extended obstruction is generated when the anastomotic site of functional end-to-end anastomosis is extended saccularly and blocked by intestinal contents. This is a specific complication of functional end-to-end anastomosis. Saccular extended obstruction of the anastomotic site of func-tional end-to-end anastomosis causes postoperative intestinal obstruction. Saccular extended obstruction places a heavy burden on patients because surgery is necessary for treatment of intestinal obstruction due to saccular extended obstruction. However, saccular extended obstruction is not a commonly recognized complication. The greatest factor contributing to the development of saccular extended obstruction is an acute angle between the portions of the intestinal tract oral and aboral to the anastomotic site. When this angle approaches obtuse angle, preferably close to a straight line, stagnation of the intestinal contents does not occur at the anastomotic site of functional end-to-end anastomosis and saccular extended obstruction is avoided. For making the angle of anastomotic intestinal tracts obtuse or straight, it may be effective that the entry hole of stapling suture instrument creating the anastomotic stoma is closed perpendicular to the intestinal axis.
基金supported by Grant-in-Aid from the National Natural Science Foundation of China (10632010,11072023)
文摘Platelet concentration near the blood vessel wall is one of the major factors in the adhesion of platelets to the wall.In our previous studies,it was found that swirling flows could suppress platelet adhesion in small-caliber artificial grafts and end-to-end anastomoses.In order to better understand the beneficial effect of the swirling flow,we numerically analyzed the near-wall concentration distribution of platelets in a straight tube and a sudden tubular expansion tube under both swirling flow and normal flow conditions.The numerical models were created based on our previous experimental studies.The simulation results revealed that when compared with the normal flow,the swirling flow could significantly reduce the near-wall concentration of platelets in both the straight tube and the expansion tube.The present numerical study therefore indicates that the reduction in platelet adhesion under swirling flow conditions in small-caliber arterial grafts,or in end-to-end anastomoses as observed in our previous experimental study,was possibly through a mechanism of platelet transport,in which the swirling flow reduced the near-wall concentration of platelets.
文摘目的评估浆肌层吻合法在结肠吻合中的安全性和有效性。方法选取2017年8月至2018年8月粤北人民医院收治的行结肠吻合的结肠癌患者48例,按随机数字表法分为浆肌层吻合组(n=24)和二层吻合组(n=24),浆肌层吻合组行Layer to layer缝合法,二层吻合组行Albert-gambee缝合法,观察并比较两组患者围术期指标及并发症发生情况。结果浆肌层吻合组与二层吻合组吻合时出血量、吻合口漏发生率、首次肛门排气时间、首次排便时间及术后住院时间分别为(19.25±3.75)mL和(19.29±4.57)mL、8.3%和4.7%、(4.00±1.18)d和(3.79±1.18)d、(7.13±1.39)d和(7.63±1.38)d、(11.29±1.94)d和(11.71±2.26)d,两组相比,差异无统计学意义(P>0.05);浆肌层吻合组的吻合时间为(11.83±1.93)min,较二层吻合组的(21.29±1.94)min明显缩短,差异有统计学意义(P<0.05)。结论结肠吻合中运用浆肌层吻合法安全可靠。
