Respiratory failure & ventilation

Diagnostic accuracy of tests for assessing readiness for liberation from mechanical ventilation in adults: an overview of reviews

J Intensive CarePublished Overview of systematic reviews of diagnostic accuracy studies

Authors' conclusion

The accuracy of tests used to assess readiness for withdrawing ventilatory support in adults varies considerably.

Study context

Population
Adults with ventilatory failure requiring invasive ventilation for more than 24 h10 systematic reviews (SRs) · 23 tests
Comparison
Tests of readiness for liberation from mechanical ventilation
Outcome
Diagnostic accuracy for weaning failure (successful weaning = alive without ventilatory support 72 h after liberation)
Follow-up
72 h
Methodological detailsRisk of bias in the SRs ranged from low to high
  • Risk of bias in the SRs ranged from low to high

Performance

As reported in the abstract

Diagnostic accuracy for weaning failure
Test or modelSensitivitySpecificity
Lung ultrasound score0.94 (95% CI 0.59-0.99)0.87 (95% CI 0.62-0.97)
Diaphragmatic RSBI0.84 (95% CI 0.76-0.90)0.87 (95% CI 0.79-0.92)
Venous oxygen saturation0.83 (95% CI 0.74-0.90)0.88 (95% CI 0.83-0.92)
Brain natriuretic peptide0.88 (95% CI 0.83-0.92)0.82 (95% CI 0.73-0.89)

Sensitivity

Lung ultrasound score0.94 (95% CI 0.59-0.99)
Diaphragmatic RSBI0.84 (95% CI 0.76-0.90)
Venous oxygen saturation0.83 (95% CI 0.74-0.90)
Brain natriuretic peptide0.88 (95% CI 0.83-0.92)

Specificity

Lung ultrasound score0.87 (95% CI 0.62-0.97)
Diaphragmatic RSBI0.87 (95% CI 0.79-0.92)
Venous oxygen saturation0.88 (95% CI 0.83-0.92)
Brain natriuretic peptide0.82 (95% CI 0.73-0.89)

Original publication

Diagnostic accuracy of tests for assessing readiness for liberation from mechanical ventilation in adults: an overview of reviews. J Intensive Care. Published 14 January 2026. doi:10.1186/s40560-026-00848-9

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