Physiological effects of noninvasive positive ventilation during acute moderate hypercapnic respiratory insufficiency in children.

Intensive Care Medicine
S EssouriBrigitte Fauroux

Abstract

A prospective physiological study was performed in 12 paediatric patients with acute moderate hypercapnic respiratory insufficiency to assess the ability of noninvasive positive pressure ventilation (NPPV) to unload the respiratory muscles and improve gas exchange. Breathing pattern, gas exchange, and inspiratory muscle effort were measured during spontaneous breathing and NPPV. NPPV was associated with a significant improvement in breathing pattern, gas exchange and respiratory muscle output. Tidal volume and minute ventilation increased by 33 and 17%, and oesophageal and diaphragmatic pressure time product decreased by 49 and 56%, respectively. This improvement in alveolar ventilation translated into a reduction in mean partial pressure in carbon dioxide from 48 to 40 mmHg (P = 0.01) and in respiratory rate from 48 to 41 breaths/min (P = 0.01). No difference between a clinical setting and a physiological setting of NPPV was observed. In conclusion, this study shows that NPPV is able to unload the respiratory muscles and improve clinical outcome in young patients admitted to the paediatric intensive care unit for acute moderate hypercapnic respiratory insufficiency.

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Citations

Oct 14, 2011·Intensive Care Medicine·Sandrine EssouriPierre Tissières
Jun 23, 2009·Archives de pédiatrie : organe officiel de la Sociéte française de pédiatrie·S EssouriD Devictor
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Jan 1, 2021·Pediatric Pulmonology·Jorge LópezUNKNOWN NIV Research Group
Dec 9, 2021·Paediatric Anaesthesia·Luis Sequera-RamosAlexander Fuchs

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