Table 3.

Potential causes of preserved S_pO₂ despite oesophageal intubation [9, 28].

Oesophageal intubation following the use of techniques to extend the safe apnoea time Oesophageal intubation in the presence of spontaneous ventilatory efforts. These patients precipitously deteriorate following subsequent administration of neuromuscular blocking agents. Proximal oesophageal intubation with leak around uncuffed tube or tube with deflated cuff (particularly with small diameter tracheal tubes in paediatric patients) Tracheo‐oesophageal fistula with tip of tube proximal to fistula