Drummond G B, Nimmo A F, Elton R A
Department of Anaesthetics, University of Edinburgh.
Br J Anaesth. 1996 Sep;77(3):327-32. doi: 10.1093/bja/77.3.327.
Thoracic impedance (TTI) and rib cage inductance band (IB) signals were measured in 10 patients during the first night after abdominal surgery, and compared by successive correlation of the change in each signal. Poor matching of the signals occurred, on average, for 94 min either because of movement of differences in the waveform. There were frequent episodes of transient poor correlation, generally associated with transient respiratory disturbance, predominantly airway obstruction (58%). Thoracic impedance measurements are simpler than inductance band methods for detecting rib cage movement and may be useful for large studies of respiratory abnormalities in patients after operation.
在10例腹部手术后的首个夜晚，测量了胸廓阻抗（TTI）和胸廓电感带（IB）信号，并通过对每个信号变化的连续相关性进行比较。由于波形差异或移动，信号平均有94分钟匹配不佳。频繁出现短暂的相关性差的情况，通常与短暂的呼吸紊乱有关，主要是气道阻塞（58%）。胸廓阻抗测量在检测胸廓运动方面比电感带方法更简单，可能有助于对术后患者呼吸异常进行大规模研究。
