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01.08.2005 | Brief Report

Short-term effects of prone position in chronic obstructive pulmonary disease patients with severe acute hypoxemic and hypercapnic respiratory failure

verfasst von: Jean Reignier, Olivier Lejeune, Benoit Renard, Maud Fiancette, Christine Lebert, Frederic Bontemps, Eva Clementi, Laurent Martin-Lefevre

Erschienen in: Intensive Care Medicine | Ausgabe 8/2005

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Abstract

Objective

To assess the short-term effects of prone positioning (PP) in chronic obstructive pulmonary disease (COPD) patients with severe hypoxemic and hypercapnic respiratory failure requiring invasive mechanical ventilation.

Design and setting

Prospective observational study in the general intensive care unit of a university-affiliated hospital.

Patients

11 consecutive COPD patients with persistent hypoxemia (PaO₂/FIO₂≤200 mmHg with FIO₂≥0.6) and hypercapnia requiring invasive mechanical ventilation. Patients with adult respiratory distress syndrome or left ventricular failure were excluded. Mean age was 73±11 years, mean weight 86±31 kg, mean SAPS II 53±10, and ICU mortality 36%.

Interventions

Patients were turned every 6 h.

Measurements and results

A response to PP (20% or greater PaO₂/FIO₂ increase) was noted in 9 (83%) patients. Blood gases were measured in the PP and supine (SP) positions 3 h after each turn, for 36 h, yielding six measurement sets (SP1, PP1, SP2, PP2, SP3, and PP3). PaO₂/FIO₂ was significantly better in PP: 190±26 vs. 113±9 mmHg for PP1/SP1, 175±22 vs. 135±16 mmHg for PP2/SP2, and 199±24 vs. 151±13 mmHg for PP3/SP3. After PP1 PaO₂/FIO₂ remained significantly improved, and the PaO₂/FIO₂ improvement from SP1 to SP2 was linearly related to PaO₂/FIO₂ during PP1 (r=0.8). The tracheal aspirate volume improved significantly from SP1 to PP1. PaCO₂ was not significantly affected by position.

Conclusions

PP was effective in treating severe hypoxemia in COPD patients. The first turn in PP was associated with increased tracheal aspirate.

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Titel: Short-term effects of prone position in chronic obstructive pulmonary disease patients with severe acute hypoxemic and hypercapnic respiratory failure
verfasst von: Jean Reignier
Olivier Lejeune
Benoit Renard
Maud Fiancette
Christine Lebert
Frederic Bontemps
Eva Clementi
Laurent Martin-Lefevre
Publikationsdatum: 01.08.2005
Verlag: Springer-Verlag
Erschienen in: Intensive Care Medicine / Ausgabe 8/2005
Print ISSN: 0342-4642
Elektronische ISSN: 1432-1238
DOI: https://doi.org/10.1007/s00134-005-2658-5

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Short-term effects of prone position in chronic obstructive pulmonary disease patients with severe acute hypoxemic and hypercapnic respiratory failure