The Effects of Body Mass on Lung Volumes, Respiratory Mechanics, and Gas Exchange During General Anesthesia

Outcome of laparoscopic colorectal surgery in obese and nonobese patients: a meta-analysis

“…In general, compared with nonobese patients, obese patients were associated with decreased total lung capacity, vital capacity, functional residual capacity, and chest wall compliance and increased work of breathing and upper airway resistance, alveolar-arterial oxygenation gradient and intra-abdominal pressure [30][31][32][33][34]. Hence, it is understandable that the incidence of postoperative pulmonary complications was more common in obese group patients.…”

The Bronchodilator Response of In Vivo Specific Airway Compliance in Adults with Asthma

“…However, the subjects in the Pel subgroup were, on average, slightly heavier and older, which may have resulted in the Pel subgroup having lower lung compliance compared to the non-Pel subgroup. 21,26 If true, the result would have been an underestimation of lung compliance and therefore airway compliance. It follows that the underestimation of airway compliance would again be common under both conditions and therefore such an effect does not account for the measured increase in airway compliance.…”

Non-invasive ventilation in postoperative patients: a systematic review

“…Morbidly obese compared to non-obese patients are characterized by a restrictive syndrome, an increase in chest wall elastance and intraabdominal pressure, which may promote lung atelectasis [76][77][78][79]. Obese patients may also present several respiratory complications such as sleep apnea syndrome [80] and obesity hypoventilation syndrome.…”