What is the role of intermittent abdominal pressure ventilation in the treatment of amyotrophic lateral sclerosis (ALS)?

Updated: Jan 02, 2020
  • Author: Divakara Kedlaya, MBBS; Chief Editor: Ryan O Stephenson, DO  more...
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Another type of respiratory muscle aid is the intermittent abdominal pressure ventilator. This device assists expiratory muscles and provides daytime ventilatory support. The intermittent abdominal pressure ventilator uses an elastic air sac, which intermittently inflates to aid in expiration. The air sac is contained in a corset, which can be concealed under clothing. This device should not be used in patients with significant scoliosis or obesity. Some patients prefer its use to that of the mouthpiece intermittent positive pressure ventilator, as it leaves the mouth free for mouthstick and other activities.

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