Objective To evaluate the sealing potential of a new surgical system which applies low temperature plasma (NTS-100)in mesenteric vascular,gastric vein,splenic vein and abdominal wall vein.Methods Twelve piglets were randomly divided into three groups,and each group underwent operation using NTS-100,Valley or PEAK surgical systems,respectively.The effectiveness of sealing in the mesenteric vascular,the gastric vein,the splenic vein and the abdominal wall vein was evaluated and compared.Results Successful sealing rate of NTS-100 on the mesenteric vascular with average diameter of 1.5 mm was 100％,and the delayed bleeding rate was 0.No statistically significant difference was found when compared with Valley and PEAK (P ＞ 0.05);Successful sealing rate of NTS-100 on the gastric vein,splenic vein and abdominal wall vein with average diameter of 3.56 mm was 100％,and the delayed bleeding rate was 0.Vessels with the greatest diameter of 4.53 mm could be sealed successfully.While,there was no statistically significant difference when compared with Valley and PEAK (P ＞ 0.05).Conclusion A new surgical system which applies low temperature plasma (NTS-100) has favorable effectiveness on sealing vascular when compared with Valley and PEAK in the operations on the mesenteric vascular,the gastric vein,the splenic vein and the abdominal wall vein.

目的 探讨可手术乳腺癌患者外周周血巾循环肿瘤细胞(circulating tumor cells,CTCs)阳性率与其临床病理特征的相关性.方法 2014年1-9月本院收治的73例可手术乳腺癌患者为研究对象,使用CellSearch系统检测所有患者在接受化疗前的CTCs,分析其与原发肿瘤临床病理特征和预后的关系.结果 CTCs在可手术乳腺癌患者中的检出率为16.4％;CTCs阳性组与阴性组中肿瘤直径＞ 5cm的患者分别占25％、3.3％,两组差异有统计学意义(P=0.036),且肿瘤直径是CTCs阳性的独立影响因素(OR=2.024,P＜0.05);CTCs阳性与阴性患者1年无病生存(disease free survival,DFS)率分别为80.8％、100％,两组差异有统计学意义(P=0.01).结论 原发肿瘤大小与可手术乳腺癌患者CTCs有关,但CTCs与其预后的关系尚不明确.