Obesity and anesthesia.

Area of Science:

• Anesthesiology and Perioperative Medicine
• Bariatric Surgery
• Respiratory Physiology

Background:

• Surgical procedures in obese patients are rising globally.
• Obesity presents unique challenges, particularly concerning the respiratory system.
• Perioperative respiratory complications are a significant concern for this patient group.

Purpose of the Study:

• To review the pathophysiology of respiratory issues in obese patients.
• To highlight the importance of preoperative evaluation and intraoperative management.
• To discuss strategies for optimizing airway management and oxygenation to prevent complications.

Main Methods:

• Review of current literature on obesity and perioperative respiratory complications.
• Discussion of preoperative assessment protocols.
• Analysis of intraoperative techniques like positive end-expiratory pressure (PEEP) titration.
• Evaluation of airway management and oxygenation strategies.
• Consideration of recent advancements in perioperative monitoring and pharmacotherapy.

Main Results:

• Glucagon-like-peptide 1 (GLP-1) agonists impact perioperative fasting guidelines due to delayed gastric emptying.
• Advancements like quantitative train-of-four (TOF) monitoring, improved neuromuscular reversal agents, and gastric ultrasounds enhance perioperative care.
• Ambulatory surgery centers are safely managing complex obesity cases previously considered high-risk.

Conclusions:

• Obese patients have a higher risk of perioperative complications, primarily respiratory.
• Comprehensive preoperative evaluation is essential.
• Effective intraoperative management and postoperative support are critical for patient safety and improved outcomes.