Ninane Y, De Troyer A
Service de Pneumologie, Hôpitaux Universitaires Saint-Pierre et Erasme, Bruxelles, Belgique.
Rev Mal Respir. 1995;12(5):435-40.
We have studied the pattern of abdominal muscle (transversus abdominis, external oblique and rectus abdominis) contraction and its mechanical correlates in patients with CAO. When breathing at rest, many stable patients with severe CAO contract the abdominal muscles during expiration and this expiratory contraction is usually confined to the transversus muscle. Moreover, this contraction most often makes expiration a mechanically active process and is an important determinant of intrinsic positive end-expiratory pressure (PEEPi) in such patients. The pathophysiologic implications of these findings are discussed.
我们研究了慢性阻塞性气道疾病（CAO）患者腹部肌肉（腹横肌、腹外斜肌和腹直肌）的收缩模式及其力学相关性。在静息呼吸时，许多重度CAO稳定期患者在呼气时会收缩腹部肌肉，且这种呼气时的收缩通常局限于腹横肌。此外，这种收缩最常使呼气成为一个力学上的主动过程，并且是此类患者内源性呼气末正压（PEEPi）的一个重要决定因素。本文讨论了这些发现的病理生理学意义。
