The prone position is associated with a decrease in respiratory system compliance in healthy anaesthetized infants.

R G Cox; A Ewen; B B Bart

doi:10.1046/j.1460-9592.2001.00646.x

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The prone position is associated with a decrease in respiratory system compliance in healthy anaesthetized infants.

R G Cox·A Ewen·B B Bart

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Abstract

Ten healthy (ASA I or II) anaesthetized infants undergoing clubfoot surgery were studied. General anaesthesia included rocuronium, nitrous oxide and isoflurane. Volume controlled ventilation (12 ml.kg-1) was delivered via a coaxial Mapleson-D (Bain) system and a Datex AS/3 ventilator. Pulmonary mechanics were measured sequentially in the supine and prone positions using a Bicore CP-100 pulmonary function monitor. Subjects had a mean age of 6 (+/- 2) months and a mean weight of 8.3 (+/- 1.4) kg. Dynamic compliance (CDYN) and static compliance (CSTAT) were both significantly lower in the prone position than in the supine position (P < 0.0005). Mean CDYN decreased from 14.9 +/- 4.9 ml.cmH2O-1 (supine) to 11.6 +/- 3.5 ml.cmH2O-1 (prone). Mean CSTAT decreased from 10.2 +/- 2.8 ml.cmH2O-1 (supine) to 8.9 +/- 2.3 ml.cmH2O-1 (prone). No clinically significant differences in gas exchange were noted, however, on repositioning.

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Anesthesia, General Female Hemodynamics Humans Infant Lung Compliance Male Prone Position Pulmonary Gas Exchange Respiratory Mechanics Supine Position Clinical Trial Journal Article Research Support, Non-U.S. Gov't

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R G Cox, A Ewen, B B Bart. 2001. The prone position is associated with a decrease in respiratory system compliance in healthy anaesthetized infants.. https://doi.org/10.1046/j.1460-9592.2001.00646.x

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