TY - JOUR T1 - End tidal carbon dioxide is as reliable as transcutaneous monitoring in ventilated postsurgical neonates JF - Archives of Disease in Childhood - Fetal and Neonatal Edition JO - Arch Dis Child Fetal Neonatal Ed SP - F161 LP - F164 DO - 10.1136/fetalneonatal-2011-301606 VL - 98 IS - 2 AU - David Gerald Tingay AU - Kwok Sean Mun AU - Elizabeth Jean Perkins Y1 - 2013/03/01 UR - http://fn.bmj.com/content/98/2/F161.abstract N2 - Objectives To compare the agreement, precision and repeatability of end tidal carbon dioxide () and transcutaneous carbon dioxide () with partial pressure of arterial CO2 () in postoperative neonates. Patients Fifty mechanically ventilated neonates without lung disease, and with no contraindications for either or monitoring. Interventions Paired and values were recorded with three consecutive measurements within the first 48 h of surgery. Main outcome measures , and triplets were compared using Bland-Altman plots. Results One hundred thirty-two triplet measures of CO2 were recorded with mean 43.5 (7.3) mm Hg, 38.8 (6.4) mm Hg and 43.8 (8.8) mm Hg (p<0.0001 for against ; paired t test). The − bias±2SD was 4.1±9.0 mm Hg and −0.8±13.0 mm Hg for −. 56.1% of , and 60.6% of values were within ±5 mm Hg of paired . Conclusions In postoperative neonates, and demonstrated a clinically acceptable agreement with . ER -