Yamamoto Kenta, Mase Kyoshi, Kihara Kazuaki, Ishikawa Akira, Ozaki Kohei
Department of Rehabilitation, Konan Medical Center: 1-5-16 Kamokogahara, Higashinada, Kobe, Hyogo 658-0064, Japan.
Department of Disability and Health, Hirosaki University Graduate School of Health Sciences, Japan.
J Phys Ther Sci. 2021 Feb;33(2):132-136. doi: 10.1589/jpts.33.132. Epub 2021 Feb 13.
[Purpose] This study aimed to investigate the difference in intrapleural pressure between the supine and lateral decubitus positions during manual chest wall compression. [Participants and Methods] Eight healthy males participated in this study. The same physiotherapist performed chest wall compression on participants lying supine, and on their right and left sides. We noted changes in intrapleural pressure and lung volume in each participant during quiet breathing and chest wall compression. [Results] During chest wall compression, intrapleural pressure at the end-expiratory lung volume and the end-inspiratory lung volume were lower in the right and left decubitus positions than in the supine position. We observed the following low inflection points in the pressure-volume loops during chest wall compression: all participants in the supine position, no participants in the right decubitus position, and two participants in the left decubitus position. [Conclusion] Chest wall compression in the bilateral decubitus positions may not cause excessive intrapleural pressure on the airway and alveoli as compared to chest wall compression in the supine position.
[目的] 本研究旨在调查手动胸壁按压期间仰卧位和侧卧位时胸腔内压的差异。[参与者与方法] 八名健康男性参与了本研究。同一名物理治疗师对仰卧位以及右侧卧位和左侧卧位的参与者进行胸壁按压。我们记录了每位参与者在安静呼吸和胸壁按压期间胸腔内压和肺容积的变化。[结果] 在胸壁按压期间，右侧卧位和左侧卧位时呼气末肺容积和吸气末肺容积时的胸腔内压低于仰卧位。我们在胸壁按压期间的压力-容积环中观察到以下低拐点：仰卧位的所有参与者、右侧卧位的无参与者以及左侧卧位的两名参与者。[结论] 与仰卧位胸壁按压相比，双侧卧位胸壁按压可能不会对气道和肺泡造成过度的胸腔内压。
