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Objectives Extubation failure is common in infants and associated with complications. Methods A prospective study was undertaken of preterm and term born infants. Diaphragm electromyogram (EMG) was measured transcutaneously for 15–60 min prior to extubation. The EMG results were related to tidal volume (Tve) to calculate the neuroventilatory efficiency (NVE). Receiver operating characteristic curves (ROC) were constructed and areas under the ROCs (AUROC) calculated. Results Seventy-two infants, median gestational age 28 (range 23–42) weeks were included; 15 (21%) failed extubation. Infants successfully extubated were more mature at birth (p=0.001), of greater corrected gestational age (CGA) at extubation (p 29.6 weeks had the highest combined sensitivity (86%) and specificity (80%) in predicting extubation success. Conclusions Although NVE differed significantly between those who did and did not successfully extubate, CGA was the best predictor of extubation success.

Prediction of extubation success using the diaphragmatic electromyograph results in ventilated neonates