使用超声评估硬膜外腔的深度。
Evaluating the depth of the epidural space with the use of ultrasound.
作者信息
Helayel Pablo Escovedo, da Conceição Diogo Bruggemann, Meurer Gustavo, Swarovsky Claudia, de Oliveira Filho Getúlio Rodrigues
机构信息
Hospital Governador Celso Ramos.
出版信息
Rev Bras Anestesiol. 2010 Jul-Aug;60(4):376-82. doi: 10.1016/S0034-7094(10)70046-5.
BACKGROUND AND OBJECTIVES
The objective of the present study was to evaluate the use of the ultrasound on the determination of the depth of the epidural space.
METHODS
Sixty patients were included in this prospective study; the L(3)-L(4) space was initially identified by palpation followed by the ultrasound measuring the depth of the epidural space (PU). After the epidural puncture the measurements o the depth (PA) were recorded. The data underwent descriptive statistics, and the concordance correlation coefficient and Bland-Altman analysis, with 95% confidence interval were calculated.
RESULTS
Analysis of concordance between the palpation and ultrasound methods was 86.6%. Mean values of PU obtained were 4.97 +/- 0.51 cm and PA 4.97 +/- 0.71 cm, and Pearson correlation coefficient of 0.66 while Bland-Altman analysis revealed a mean difference of 0.0035 +/- 0.53 cm with 95% confidence interval between -0.228 and 0.221.
CONCLUSIONS
The ultrasound is a precise tool to determine the depth of the epidural space.
背景与目的
本研究的目的是评估超声在确定硬膜外腔深度中的应用。
方法
本前瞻性研究纳入了60例患者；首先通过触诊确定L(3)-L(4)间隙，随后用超声测量硬膜外腔深度（PU）。硬膜外穿刺后记录深度测量值（PA）。对数据进行描述性统计，并计算一致性相关系数和Bland-Altman分析以及95%置信区间。
结果
触诊与超声方法之间的一致性分析为86.6%。获得的PU平均值为4.97±0.51cm，PA为4.97±0.71cm，Pearson相关系数为0.66，而Bland-Altman分析显示平均差异为0.0035±0.53cm，95%置信区间在-0.228至0.221之间。
结论
超声是确定硬膜外腔深度的精确工具。
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