This is the protocol for a review and there is no abstract. The objectives are as follows:
We wish to compare the safety and effectiveness of using a flexible intubation scope for tracheal intubation in obese patients (BMI > 30 kg/m2) with other methods of intubation including conventional direct laryngoscopy, non-standard laryngoscopy and the use of intubating supraglottic airway devices.
We will compare the frequency of complications as well as process indicators, such as time taken for intubation and the proportion of first attempts that are successful, between groups using the different methods of intubation. We will also consider the influence of factors such as the expertise of the intubator and degree of obesity of the patient on the safety and effectiveness of different methods.