Neck circumference as a predictor of difficult intubation and difficult mask ventilation in morbidly obese patients: A prospective observational study.

Background: There is conflicting evidence as to whether obesity and neck circumference are predictors of difficult intubation in the surgical population. In addition, the cut-off neck circumference related to difficult intubation has not been clearly identified.

Objectives: The primary study objective was to determine whether neck circumference and obesity were predictors of difficult intubation in morbidly obese surgical patients.

A survey of Canadian anesthesiologists' preferences in difficult intubation and "cannot intubate, cannot ventilate" situations.

Introduction: The purpose of this survey was to determine the equipment that anesthesiologists prefer in difficult tracheal intubation and "cannot intubate, cannot ventilate" (CICV) situations.

Methods: A questionnaire was e-mailed to members of the Canadian Anesthesiologists' Society to ascertain their preferences, experience, and comfort level with regard to their use of airway equipment in difficult intubation and CICV situations in adult patients. A Chi square test was used to analyse the data.

New supraglottic airway with built-in pressure indicator decreases postoperative pharyngolaryngeal symptoms: a randomized controlled trial.

Purpose: Excessive supraglottic airway cuff pressure increases postoperative pharyngolaryngeal symptoms such as sore throat, dysphonia, and dysphagia. A new supraglottic airway, AES Ultra CPV™ (CPV), has a built-in intracuff pressure indicator. We hypothesized that using the CPV would reduce postoperative symptoms when compared with the LMA Classic™ (LMA) without intracuff pressure guidance.