Department of Rehabilitation Medicine and Rehabilitation Institute of Muscular Disease, Yonsei University College of Medicine, Seoul, Korea.
J Rehabil Med. 2012 Apr;44(4):351-4. doi: 10.2340/16501977-0948.
To estimate the efficiency of a cough assistance device, the Cough Aid, in patients with weak respiratory muscles with bulbar palsy and/or tracheostomy. The Cough Aid is a device that has been developed to substitute for glottis function.
Before-after trial.
SUBJECTS/PATIENTS: A total of 74 patients with bulbar palsy and/or tracheostomy, as well as respiratory muscle weakness, were recruited.
Forced vital capacity, unassisted cough peak flow, lung insufflation capacity, and assisted cough peak flow were measured via tracheostomy or oronasal interface. Lung insufflation capacity and assisted cough peak flow were measured using the Cough Aid.
In all 74 subjects, lung insufflation capacities measured with the device were significantly higher than forced vital capacities (p < 0.01). Assisted cough peak flows measured using the device were also significantly higher than unassisted cough peak flows (p < 0.01). The Cough Aid is effective in helping to increase cough flow and assisting in the air stacking exercise by substituting the function of the glottis in patients who have glottis dysfunction or a tracheostomy tube.
评估咳嗽辅助装置（Cough Aid）在延髓性麻痹和/或气管切开患者中弱呼吸肌的效率。Cough Aid 是一种旨在替代声门功能的设备。
前后对照试验。
受试者/患者：共招募了 74 名患有延髓性麻痹和/或气管切开以及呼吸肌无力的患者。
通过气管切开或口鼻接口测量用力肺活量、自主咳嗽峰流速、肺充气量和辅助咳嗽峰流速。使用 Cough Aid 测量肺充气量和辅助咳嗽峰流速。
在所有 74 名受试者中，使用该设备测量的肺充气量明显高于用力肺活量（p<0.01）。使用该设备测量的辅助咳嗽峰流速也明显高于自主咳嗽峰流速（p<0.01）。Cough Aid 通过替代声门功能，在存在声门功能障碍或气管切开管的患者中，有效帮助增加咳嗽流量并协助空气堆积运动。
