Consequences of postoperative alterations in respiratory mechanics.

Adult Aged Anesthesia, Endotracheal Anesthesia, Inhalation Blood Gas Analysis Body Weight Female Humans Hypoxia/etiology Lung/physiopathology Male Middle Aged Oximetry Peritoneal Cavity/surgery Pneumonia/etiology Positive-Pressure Respiration Postoperative Care Postoperative Complications Pulmonary Atelectasis/etiology Respiratory Function Tests Respiratory Insufficiency/etiology,physiopathology Smoking Spirometry Surgical Procedures, Operative/adverse effects Thoracic Surgery Thorax/surgery Vital Capacity