Transcutaneous oxygen monitoring in congenital diaphragmatic abnormalities.

The article considers the use of transcutaneous (Tc) partial pressure of oxygen (PO2) monitoring as an alternative form of continuous monitoring of respiratory function in paediatric critical care. The principles of TcPO2 monitoring are discussed. The relationship between TcPO2, arterial blood gases and oxygen saturation is highlighted by examining trends in TcPO2 derived in three neonates with congenital diaphragmatic abnormality. The effect of critical incidents upon TcPO2 is also explored. TcPO2 is unlikely to enhance the assessment of ventilation provided by pulse oximetry and blood gas analysis.