Assessment of Respiratory Effort by Means of Strain Gauges and Esophageal Pressure Swings: A Comparative Study | Zendy

An Boudewyns | Zendy; Marc Willemen | Zendy; Michiel F. M. Wagemans | Zendy; W. De Cock | Zendy; Paul Van de Heyning | Zendy; W. De Backer | Zendy

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Assessment of Respiratory Effort by Means of Strain Gauges and Esophageal Pressure Swings: A Comparative Study

Author(s) -

An Boudewyns,

Marc Willemen,

Michiel F. M. Wagemans,

W. De Cock,

Paul Van de Heyning,

W. De Backer

Publication year - 1997

Publication title -

sleep

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.222

H-Index - 207

eISSN - 1550-9109

pISSN - 0161-8105

DOI - 10.1093/sleep/20.2.168

Subject(s) - strain gauge , medicine , strain (injury) , anesthesia , sleep (system call) , apnea , breathing , materials science , computer science , composite material , operating system

We characterized apneas by a quantitative method (esophageal pressure measurements) and by a qualitative method (strain gauges) at the same time in 22 patients with sleep-related breathing disorders. Detection of respiratory effort by strain gauges significantly overestimated the total number of central apneas in each patient. Despite this overestimation, none of the patients was wrongly diagnosed as having pure central sleep apnea syndrome. Strain gauges are sufficiently reliable for the characterization of apneas in most patients. When strain gauges reveal that most apneas are central in origin, verification by esophageal pressure measurements is recommended.

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