基础与临床研究 >文章正文
基础与临床研究 >文章正文
The Hemodynamic Effects of Peritoneal Insufflation during Laparoscopic Operation ABSTRACT Objective: To observe the hemodynamic changes during peritoneal insufflation. Methods: 40 patients ASA 1 or 2, age 20~40 were allocated into two groups: laparoscopic cholecystectomy (n=20) and laparoscopic cystectomy (n=20). The patients were anesthetized with 1.0 MAC enflurane. Hemodynamic parameters were measured with Hemosonic TM100 after the patients were placed to the surgical position, during peritoneal insufflation and at the end of operation. Results: In both groups HR,MAP and CO changed insignificantly after position (P>0.05), HR,MAP,CO,ABF,PV,Sva and TSVR were increased significantly at 1,3,5 and 10min after peritoneal insufflation in both groups. Conclusion: hemodynamics changed significantly during pneumoperitonium. 腹腔镜手术由于其创伤小,恢复快等优点已被广泛应用。但其人工气腹和特殊体位可明显地影响病人的呼吸和循环功能。本研究采用Hemosonic TM100经食道超声心动仪连接观察、比较术中气腹前后血流动力的变化,为腹腔镜手术与麻醉提供临床参考。 资料和方法 1.一般资料 结果 1.一般资料 |
讨论<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> 腹腔镜手术由于其特殊体位及人工气腹的建立,对呼吸循环及神经内分泌代谢均可产生一定影响。目前人工气腹时用于监测其血流动力学变化的方法很多。而Hemosonic TM100是一种新型、无创、连续的经食道超声心功能监测仪。它是将配有M型超声和多普勒超声系统的探头放入食用作降主动脉直径和降主动脉血流的监测,从而更准确地计算出CO等各项参数,其连续监测的血流动力学参数之间有良好的相对变化可比性[1]。是一种操作简单、容易定位、连续显示和安全的监测方法。 |
放气后5min,HR、MAP与气腹前相比无显著性差异,CO、ABF、SVa比气腹前升高,而TSVR则明显下降(P≤0.01)。说明气腹时CO、ABF、SVa升高除受机械因素影响之外主要是由血管紧张肽、血管加压素等因素共同参与,而TSVR的增高主要是受机械因素的影响。 参考文献 |