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A Structured Approach to Extubation in Mechanically Ventilated Rats
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A Structured Approach to Extubation in Mechanically Ventilated Rats

Published on: July 18, 2025

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The Optimal Predictors of Readiness for Extubation in Low Birth Weight Infants

Waricha Janjindamai, Sitapa Pasee, Anucha Thatrimontrichai

    Journal of the Medical Association of Thailand = Chotmaihet Thangphaet
    |June 19, 2018
    PubMed

    Insights

    Extubation readiness in low birth weight infants is challenging, with 20-40% failing. A 3-minute spontaneous breathing test (SBT) and ventilation ratios were not optimal predictors of successful extubation.

    Area of Science:

    • Neonatal respiratory care
    • Pediatric critical care medicine

    Background:

    • Reintubation after extubation from mechanical ventilation is traumatic for infants and families.
    • 20-40% of infants experience extubation failure and require reintubation.

    Purpose of the Study:

    • To determine optimal predictors of extubation readiness in low birth weight infants.
    • To evaluate the efficacy of a 3-minute spontaneous breathing test (SBT) using endotracheal tube continuous positive airway pressure (ET CPAP).

    Main Methods:

    • A prospective cohort study of 51 mechanically ventilated infants.
    • Infants underwent a 3-minute SBT on ET CPAP before extubation.
    • Comparison of predictors between successful and failed extubation groups.

    Main Results:

    • 88% of infants were successfully extubated; only one infant failed the SBT.
    • SBT, minute ventilation ratio, and respiratory frequency ratio were not significant predictors of extubation success.
    • Synchronized nasal intermittent positive pressure ventilation was used more in the failed extubation group (66.7% vs. 15.7%).

    Conclusions:

    • The SBT and minute ventilation ratio are not optimal predictors for extubation readiness in low birth weight infants.
    • Further prospective studies with larger cohorts and refined extubation criteria are recommended.
    Abstract

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