Clinical Research Directory

Hyperangulated vs. Macintosh Style Blades for Intubation in Obstetric Patients

Sponsor: Samuel Lunenfeld Research Institute, Mount Sinai Hospital

Summary

Cesarean section under general anesthesia requires intubation (insertion of a tube through the mouth into the breathing pipe to support breathing during the surgery). A device called a video laryngoscope is used, which has a smooth, curved, or less curved component called 'a blade' that helps the doctor gently see the voice box and guide the breathing tube safely into place during anesthesia; it is not a sharp tool blade. There are two types of video laryngoscopes blades: a Macintosh- style blade with a gentle curve, approximately 90 degrees) and a hyperangulated blade (with a more pronounced curve). Although video laryngoscopes are safe and both types have been used for around 20 years, it is not known whether one type works better that the other in patients undergoing cesarean delivery under general anesthesia. Because general anesthesia is used in only a small proportion (about 5%) of all cesarean deliveries, research in this area is limited. The main purpose of the study is to assess if a study comparing these two types of blades in the obstetric population is feasible. This is also known as a feasibility study, which aims to test the study plan and determine whether enough participants will join a larger study and accept the study procedures. The results will be used as a guide for a larger study.

Official title: HyperANGulated Versus Macintosh styLE blaDes for INtubation in OBstetric Patients: a Cluster Randomized Feasibility Study

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