title: Arterial oxygenation after major head and neck surgery involving tracheotomy.
abstract: Changes in vital capacity, and in arterial PO2 and PCO2, were studies after major head and neck surgery involving tracheotomy and after surgery on the upper abdomen. After major head and neck surgery, changes in vital capacity were comparable to those seen after upper abdominal operations, with a decrease on day 1 of 39% recovering to 78% of the preoperative volume by day 7. Arterial PO2 in both groups decreased on day 1 but whereas PaO2 after upper abdominal surgery was recovering by day 7, PaO2 in the head and neck group, at day 7, showed no sign of recovery. Arterial PO2 7 days after major head and neck surgery was 2.3 (+/- 0.4) kPa below the preoperative value (P less than 0.001).
mesh_terms: D000005:Abdomen / Q000601:surgery; D001158:Arteries; D002245:Carbon Dioxide / Q000097:blood*; D005260:Female; D006258:Head and Neck Neoplasms / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D007822:Laryngeal Neoplasms / Q000503:physiopathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009959:Oropharyngeal Neoplasms / Q000503:physiopathology / Q000601:surgery; D010100:Oxygen / Q000097:blood*; D010313:Partial Pressure; D011184:Postoperative Period; D014140:Tracheotomy; D014797:Vital Capacity
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen