ULTRA-SONOGRAPHIC ESTIMATION OF ENDOTRACHEAL TUBE SIZE IN PAEDIATRIC PATIENTS UNDERGOING SURGERY IN PRONE POSITION: A PROSPECTIVE OBSERVATIONAL CLINICAL STUDY

Background: ETT is important in securing paediatric airway and its right size plays crucial role patients. The anatomy patients different from adults hence requires precise size. subglottic diameter being the narrowest portion of upper airway, determines USG safe, reliable, non-invasive tool used to estimate correct Conventional formulae included age height. Concerns prone position include accidental extubation,secretions, difficult access, increased abdominal pressure, FRC. Methods: Sixty group 1-4 years posted for PSARP under GA were study. guided was estimated compared with conventionally Results:The predicted by more appropriate than that physical indices(p<0.005). age-based formula 2nd nearest best fit tube. 65% intubated 1st attempt while 31.6% required 3.33% needed 3 attempts get ETT. Conclusion:USG useful reliable screening modality estimating especially undergoing surgery even such as PSARP.