Russell R I, Helps B A, Elliot M J, Helms P J
Intensive Therapy and Respiratory Medicine Unit, Institute of Child Health, London, UK.
Eur Respir J. 1993 Oct;6(9):1332-5.
There is evidence that early diagnosis of postoperative phrenic nerve damage may improve outcome, by allowing early surgical treatment, in children following cardiac surgery. This has prompted the development of a simple method for measuring phrenic nerve latency at the bedside in children. We have evaluated the reproducibility of measurements made with this system in 11 children (4 months to 13 yrs) admitted for routine surgery or cardiac catheterizations, and have assessed the various components of variability inherent in the measurement of phrenic nerve latency. The overall variability of the phrenic nerve latency with this technique (95% confidence interval) is approximately +/- 1 ms, and differences greater than this between measurements are likely to reflect a real change in phrenic nerve function. Our results indicate that the bedside technique should be a useful method of the objective assessment of phrenic nerve function in children recovering from cardiac surgery.
有证据表明，对于接受心脏手术的儿童，术后膈神经损伤的早期诊断通过允许早期手术治疗可能改善预后。这促使人们开发了一种在儿童床边测量膈神经潜伏期的简单方法。我们评估了该系统在11名因常规手术或心导管插入术入院的儿童（4个月至13岁）中进行测量的可重复性，并评估了膈神经潜伏期测量中固有的各种变异成分。使用该技术测量膈神经潜伏期的总体变异性（95%置信区间）约为±1毫秒，测量之间大于此值的差异可能反映膈神经功能的实际变化。我们的结果表明，床边技术应该是客观评估心脏手术后恢复过程中儿童膈神经功能的一种有用方法。
