Impact of Smoking on Safe Apnea Time with Mask and High-Flow Oxygen During Anesthesia in Obese Men Undergoing Surgery

What this Trial Is About

This research aims to evaluate how smoking affects the duration of safe apnea time during anesthesia in obese men. Obesity is known to increase risks of airway-related problems during anesthesia, and high-flow nasal oxygen is often used before anesthesia to reduce such risks. The study specifically compares safe apnea times between current smokers and men who have never smoked. Participants are divided into two groups based on smoking status current smokers and never smokers. Both groups receive intravenous anesthesia induction and five minutes of high-flow nasal oxygen at 60 liters per minute before anesthesia. After anesthesia induction, patients stop breathing spontaneously and remain apneic until their blood oxygen level drops to 95 percent. In the smoking group, high-flow nasal oxygen continues until the oxygen concentration reaches 95 percent, with the safe apnea time recorded. Throughout the study, participants undergo monitoring to measure the duration of safe apnea time and blood oxygen levels after five minutes. The study collects data on oxygen saturation and apnea safety during anesthesia induction. The trial involves random assignment to groups and uses multiple layers of masking to ensure unbiased results. The total participation covers the perioperative period around anesthesia induction, focusing on airway safety in obese men.

The Effect of Mask Combined With High Flow Oxygen on Preoxygenation During Induction of General Anesthesia in Obese Patients