Published in:
Open Access
01-12-2016 | Letter
Coughing correlates: insights into an innovative study using cough peak expiratory flow to predict extubation failure
Authors:
Chuan Jiang, Antonio M. Esquinas, Bushra Mina
Published in:
Critical Care
|
Issue 1/2016
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Excerpt
We read the innovative study by Duan et al. [
1] with great interest. However, key results need to be interpreted carefully to reach the proper conclusions. First, their primary finding that patients with low cough peak expiratory flow (CPEF) have significant benefit from non-invasive positive pressure ventilation (NIPPV) in the prevention of re-intubation and 90-day mortality is not unsurprising given how CPEF represents the severity of underlying respiratory pathology. In addition, the strength of their study lay in the methodology. Each precise detail regarding the protocol of weaning and re-intubation mirrors that of previous landmark studies [
2,
3]. These careful design choices help to bridge the methodological differences and heterogeneity among preceding studies. …