Agreement between arterial and transcutaneous PCO2 in patients undergoing non-invasive ventilation

Abstract

Aim: Transcutaneous carbon dioxide (PtCO2) monitoring offers a potentially non-invasive and continuous means to determine the arterial carbon dioxide tension (PaCO2). ED studies of agreement between PtCO 2 and PaCO2 have had conflicting findings and have not been targeted to subgroups with severe ventilatory disturbance such as those requiring non-invasive ventilation [NIV]. Our aim is to determine agreement between PtCO2 and PaCO2 for patients undergoing NIV for respiratory failure. Methods: This prospective observational study included a convenience sample of patients undergoing NIV for respiratory failure who required arterial blood gas analysis as part of their care. Data collected inclu..