title: Acute ventilatory failure secondary to a sigmoid volvulus.
mesh_terms: D000208:Acute Disease; D000368:Aged; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000150:complications*; D012131:Respiratory Insufficiency / Q000209:etiology*; D012810:Sigmoid Diseases / Q000150:complications*