Ultrasound is a useful tool for identifying weaning failure from cardiovascular, diaphragmatic, respiratory, and airway origin.

The strengths of our scoping review lie in its comprehensive approach to synthesizing diverse ultrasound parameters, providing insights into the multifactorial nature of weaning failure, and highlighting the potential for ultrasound to enhance clinical decision-making by identifying physiological challenges.

The search revealed 3,573 records.

After removal of duplicates, 3,117 articles were screened for potential inclusion, of which 89 articles were finally included.

These comprised six clinical trials, 80 observational prospective studies, and three retrospective studies.

In total, 6,841 subjects were included, with a weaning failure rate of 28.2%.

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