Role of esophageal manometry in polysomnography of patients with chronic respiratory failure

By Z22 - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=34459662
Submitted: December 29, 2020
Accepted: May 15, 2021
Published: July 22, 2021
Abstract Views: 4525
PDF: 532
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Authors

Esophageal pressure (Pes) monitoring is performed during polysomnography (PSG) with a thin, water-filled catheter connected to a transducer. The resulting quantitative assessment of respiratory effort can aid in the accurate diagnosis of sleep-related breathing disorders. This was a prospective observational study using Pes in PSG for thirty patients with chronic respiratory failure (CRF) conducted in the Department of Pulmonary, Critical Care and Sleep Medicine at a tertiary care centre of North India. Sleep scoring was done by conventional method and using esophageal manometry and compared polysomnography normal without esophageal manometry recording (PSGN) and polysomnography with esophageal manometry scoring (PSGE). Apnea hypopnea index (AHI) index was similar in both groups. However, respiratory effort related arousals (RERAs) were diagnosed easily using Pes resulting in significant increase in respiratory disturbance index (RDI) and even reclassification in terms of severity of sleep apnea. Besides, Pes was also useful to distinguish obstructive from central hypopnea which cannot be distinguished by routine PSG which can help guide therapy particularly in chronic respiratory failure patients with hypoventilation. Such patients with hypoventilation often require bilevel positive airway pressure as ventilatory support. Central hypopneas and apneas with hypercapnia may require higher-pressure support, a backup rate or even advanced volume assured modes of ventilation. Thus, it can be concluded that Pes in PSG remains a safe and generally well-tolerated procedure. Use of Pes aids to detect RERA and thereby RDI; a better marker of sleep-related breathing disorder rather than AHI. It also helps in differentiating between obstructive and central hypopnea.

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How to Cite

Behera, Debasis, J C Suri, Pranav Ish, Ruchi Rekha Behera, Shibdas Chakrabarti, and Viswesvaran Balasubramanian. 2021. “Role of Esophageal Manometry in Polysomnography of Patients With Chronic Respiratory Failure”. Monaldi Archives for Chest Disease 91 (4). https://doi.org/10.4081/monaldi.2021.1756.