Year : 2022  |  Volume : 16  |  Issue : 3  |  Page : 327-331

Intraoperative protective lung ventilation strategies in patients with morbid obesity

Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Boston, MA, USA

Correspondence Address:
Konstantin Balonov
800 Washington Street, Boston, MA
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/sja.sja_386_22

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Postoperative pulmonary complications (PPCs) occur frequently and are associated with a prolonged hospital stay, increased mortality, and high costs. Patients with morbid obesity are at higher risk of perioperative complications, in particular associated with those related to respiratory function. One of the most prominent concerns of the anesthesiologists while taking care of the patient with obesity in the perioperative setting should be the status of the lung and delivery of mechanical ventilation as its strategy affects clinical outcomes. Negative effects of mechanical ventilation on the respiratory system known as ventilator-induced lung injury include barotrauma, volutrauma, and atelectrauma. However, the optimal regimen of mechanical ventilation still remains a matter of debate. While low tidal volume (VT) strategy has become a widely accepted standard of care, the protective role of PEEP and recruitment maneuvers is less clear. This review focuses on the pathophysiology of respiratory function in patients with morbid obesity, the effects of mechanical ventilation on the lungs, and optimal intraoperative strategy based on the current state of knowledge.

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