Editor—We were surprised at the results of the two studies published in your journal by Baumer,1 and Bersford et al.2 Our experience with triggered ventilation over ten years is shown in table1.

In comparison with the outcome figures in the articles, our incidence of complications of pneumothoraces (PTX), intraventricular hemorrhage (IVH) and retinopathy of prematurity (ROP) were significantly less. As explained in our original article3 and subsequently shown by others, pressure and flow triggered systems perform suboptimally in infants less than 1500 g. While bench testing may suggest …