de Andrés J A, Gomar C, Calatrava P, Nalda M A
Servicio de Anestesiología, Reanimación y Terapia del Dolor, Hospital Clínic i Provincial, Facultad de Medicina, Barcelona.
Rev Esp Anestesiol Reanim. 1990 Nov-Dec;37(6):330-4.
The aim of the present study is to evaluate an electronic detector of negative pressure (Episensor, Palex, Spain) designed for the identification of epidural space. Ninety patients were randomly assigned to two groups: group 1 (n = 47) received epidural anesthesia as perioperative analgesic technique with Episensor method and group 2 (n = 43) received epidural anesthesia with the classic method of loss of resistance with gas mandrin. The following parameters were studied: a) demographic features, b) characteristics of epidural anesthesia, and c) complications occurring during space detection. There were no statistical differences in the analysis of demographic variables neither in the quality of the epidural anesthesia achieved in both groups. With respect to complications, group I presented the highest number of complications although only the lack of detection of epidural space achieved statistical significance (8.5%, p less than 0.05); the incidence was lower than that reported in the literature as physiologically possible in the lumbar epidural segment. We conclude that progressive knowledge of Episensor may decrease the initial incidence of complications with a success rate similar to that of classic techniques of identification of epidural space.
本研究的目的是评估一种用于识别硬膜外间隙的电子负压探测器（Episensor，Palex，西班牙）。90例患者被随机分为两组：第1组（n = 47）采用Episensor方法接受硬膜外麻醉作为围手术期镇痛技术，第2组（n = 43）采用经典的气芯阻力消失法接受硬膜外麻醉。研究了以下参数：a）人口统计学特征，b）硬膜外麻醉的特点，c）间隙检测过程中发生的并发症。两组在人口统计学变量分析以及所实现的硬膜外麻醉质量方面均无统计学差异。关于并发症，第I组出现的并发症数量最多，尽管只有硬膜外间隙未检测出具有统计学意义（8.5%，p小于0.05）；该发生率低于文献报道的腰椎硬膜外节段生理上可能出现的发生率。我们得出结论，对Episensor的逐步了解可能会降低并发症的初始发生率，成功率与经典的硬膜外间隙识别技术相似。
