The paper by Chipman et al in the June 2007 issue of RESPIRATORY CARE represented a monumental undertaking to evaluate 15 transport ventilators.1 We reviewed the paper on several occasions to reconcile their findings with our work on transport ventilators.2-9 We write to point out several inaccuracies in the study and ask Chipman et al to more clearly explain their findings and recommendations....

The paper by Chipman et al in the June 2007 issue of RESPIRATORY CARE represented a monumental undertaking to evaluate 15 transport ventilators.1 We reviewed the paper on several occasions to reconcile their findings with our work on transport ventilators.2-9 We write to point out several inaccuracies in the study and ask Chipman et al to more clearly explain their findings and recommendations....

OBJECTIVES Transport ventilators with inspiratory triggering functions and pressure support-control modes have recently become commercially available. We evaluated these ventilators in comparison with a standard ICU ventilator. STUDY DESIGN Laboratory study with a mechanical lung model. METHODS We compared the performance of four transport ventilators (model 740, Mallinckrodt, Pleasanton, C...