PEDIATRICS Vol. 36 No. 6 December 1965, pp. 861-868
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COMPARISON OF METHODS FOR RECORDING RESPIRATION IN NEWBORN INFANTS

George Polgar M.D.1

1 Department of Physiology and Pediatrics, School of Medicine, University of Pennsylvania

The barometric method of Drorbaugh and Fenn for measuring respiratory rate and tidal volume in newborn infants has been compared by simultaneous recordings with an impedance pneumograph and a mercury-in-rubber strain gauge, using integrated flow rate measurements as the standard. The barometric method proved to be approximately as accurate as the others, but it allows the infant to be unrestricted with no interference by tactile stimulation during measurements, and it requires less instrumentation. Therefore a total body plethysmograph can be used confidently without additional equipment for intermittent recording of respiration in normal and diseased infants.

Submitted on February 24, 1965
Accepted on June 2, 1965