The Performance of the Neck Circumference for a Difficult Laryngoscopy in Obese Patients.

Background And Objective: There is conflicting evidence as to whether neck circumference (NC) is related to a difficult laryngoscopy in obese patients. The objectives of this study were to determine the performance of the NC in defining a difficult laryngoscopy, and to identify factors predicting a difficult laryngoscopy among those obese patients.

Material And Method: This prospective study was conducted in adult patients with a body mass index (BM) of greater or equal to 30 kg/m² who underwent conventional endotracheal intubation.