A new mode of ventilation, Neurally Adjusted Ventilatory Assist (NAVA) has been recently introduced. This mode triggers, cycles and regulates gas delivery based on the diaphragmatic EMG signal via a specially designed nasogastric tube (Edi). As a result, air leaks do not affect the ability of the ventilator to synchronize gas delivery with the patient increasing patient ventilator synchrony. Based on the operation of NAVA it is expected to increase the successful application of noninvasive ventilation to children.