Aspiration pneumonitis
Exacerbation of obstructive sleep apnea
Atelectasis
Wound infections
Abdominal compartment syndrome
Pneumonia
Upper airway obstruction
Diaphragmatic palsy from scalene nerve block
Bleeding and shock
Neuromuscular weakness
Pleural effusions
Exacerbation of underlying lung disorder
Acute respiratory distress syndrome
Pulmonary embolism
Pulmonary edema