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

Abstract:

INTRODUCTION: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. MATERIALS AND METHODS:Breathing pattern, gas exchange, and inspiratory muscle effort were measured during spontaneous breathing and NPPV. RESULTS: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.

journal_name

Intensive Care Med

journal_title

Intensive care medicine

authors

Essouri S,Durand P,Chevret L,Haas V,Perot C,Clement A,Devictor D,Fauroux B

doi

10.1007/s00134-008-1202-9

subject

Has Abstract

pub_date

2008-12-01 00:00:00

pages

2248-55

issue

12

eissn

0342-4642

issn

1432-1238

journal_volume

34

pub_type

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