What is the role of transdiaphragmatic pressure measurement in the workup of hypoventilation syndromes?

Updated: Jul 22, 2021
  • Author: Jazeela Fayyaz, DO; Chief Editor: Guy W Soo Hoo, MD, MPH  more...
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Measurement of transdiaphragmatic pressure is useful in documenting respiratory muscle weakness. This test is performed by placing an esophageal catheter with an esophageal balloon and a gastric balloon. The difference between the pressures measured at the two balloons is the transdiaphragmatic pressure, which is decreased in patients with diaphragmatic dysfunction and paralysis.

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