论文部分内容阅读
目的:比较不同压力智能型人工肛门封堵装置的效果。方法:选用8-10月龄西藏小型猪进行动物试验。先进行结肠造口动物模型制备,再设计为3个不同气囊压力组分别接受试验。观察动物一般情况、造口泄露率、造口处肠壁粘膜组织中性粒细胞和淋巴细胞及肠管局部血流灌注量,并对应进行各影响因素的综合分析。结果:33.33 mmHg的压力组较之于其它两组,一般情况较差,体重下降明显(p=0.004);造口泄漏率最低,但造口处肠壁粘膜组织中性粒细胞和淋巴细胞显著上升(p=0.000);肠管局部血流灌注量显著下降(p=0.000),提示压力太大易致使造口处血运变差及并发感染。结论:压力过大时对周围组织及肠管压迫严重,容易引起缺血、坏死、感染等并发症。压力过小时又易发生泄漏,无法达到封堵目的。以气囊压力约18 mmHg较为适宜。
OBJECTIVE: To compare the effects of different pressure artificial artificial occlusion devices. Methods: Tibetan miniature pigs aged 8-10 months were selected for animal experiments. The first colostomy animal model preparation, and then designed for three different balloon pressure group were tested. The general situation of animals, the incidence of stoma ostomy, the amount of neutrophils and lymphocytes in the intestinal mucosa of the stoma and the local blood flow of the intestinal tract were observed and analyzed comprehensively. Results: Compared with the other two groups, the pressure of 33.33 mmHg group was generally poor and the body weight decreased significantly (p = 0.004). The incidence of stoma leakage was the lowest, but the number of neutrophils and lymphocytes in mucosa of the stoma was significantly higher (P = 0.000). The intestinal perfusion decreased significantly (p = 0.000), suggesting that too much pressure could easily lead to poor blood circulation and complicated infection in the stoma. Conclusion: When the pressure is too high, the surrounding tissues and intestines are severely compressed, which can easily cause complications such as ischemia, necrosis and infection. Pressure is too small and prone to leakage, can not achieve the purpose of blocking. The balloon pressure of about 18 mmHg more appropriate.