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Weak cough strength associated with increased extubation failure, finds study
The predictive power of extubation failure diagnosed by cough strength varies by study. Researchers have conducted a meta-analysis to summarise the diagnostic power of extubation failure tested by cough strength.
Researchers have found that a weak cough is associated with increased extubation failure. It can be assessed by cough peak flow and the semiquantitative cough strength score (SCSS).
A spontaneous breathing experiment (SBT) has been proposed to assist in determining if a patient can be weaned off mechanical ventilation (MV). Extubation is suggested after a successful spontaneous breathing experiment (SBT).
However, extubation failure occurs in 10%–20% of patients who successfully complete an SBT. In comparison to patients who successfully extubate, those who fail to extubate are more likely to die in the hospital. Early identification of patients at high risk of extubation failure and prompt implementation of preventative interventions (e.g., noninvasive ventilation or the use of a high-flow nasal cannula) have been shown to minimise hospital mortality. As a result, the critical topic is how to identify individuals who are at increased risk of extubation failure.
Reference-
Duan, J., Zhang, X. & Song, J. Predictive power of extubation failure diagnosed by cough strength: a systematic review and meta-analysis. Crit Care 25, 357 (2021). https://doi.org/10.1186/s13054-021-03781-5
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: editorial@medicaldialogues.in. Contact no. 011-43720751