Ventilator auto-triggering by cardiac electrical activity during noninvasive ventilation with neurally adjusted ventilatory assist.

Neurally adjusted ventilatory assist (NAVA), by capturing the electrical activity of the diaphragm, improves patient-ventilator synchrony. It is, however, not completely immune from auto-triggering by cardiac electrical activity as illustrated in this case. Stringent observation of respiratory rate and vigilance for this phenomenon is warranted when using NAVA.