Predictive value of bronchoscopy after infant cardiac surgery: a prospective study

Area of Science:

• Pediatric Cardiology
• Thoracic Surgery
• Respiratory Medicine

Background:

• Infant cardiac surgery frequently leads to tracheobronchial narrowing.
• Airway complications can impact post-operative recovery and outcomes.

Purpose of the Study:

• To investigate the association between airway narrowing and extubation failure (EF) in infants following cardiac surgery.
• To identify predictors of EF in this vulnerable population.

Main Methods:

• A prospective cohort study involving infants (≤6 months) undergoing cardiac surgery.
• Flexible bronchoscopy (FB) was used for standardized airway evaluation post-operatively.
• Extubation failure was defined as the need for mechanical ventilation within 48 hours of primary extubation.

Main Results:

• Significant airway narrowing was observed in 50% of patients who underwent FB.
• 19% of all patients developed extubation failure.
• Narrowed airway calibre showed 50% sensitivity and 50% specificity for EF. Preoperative ventilation need was the strongest predictor of EF (OR 6.5).

Conclusions:

• Airway narrowing is frequently identified on FB after infant cardiac surgery.
• Bronchoscopic assessment of airway narrowing has limited sensitivity and specificity for predicting EF.
• Inter-rater reliability for expert assessment of tracheobronchial narrowing is poor to moderate.