title: [Effects of postoperative pain on lung volume in patients undergoing aortic surgery].
abstract: To evaluate the potential advantages of the administration of extradural morphine to control postoperative pain and its effects on respiratory function, 39 patients were randomly assigned to one of two groups before aortic surgery. The first group (20 patients) received intravenous analgesia as required (control group). The second group (19 patients) received extradural morphine in a programmed fashion. During the immediate postoperative period the following parameters were measured in both groups: respiratory rate, vital capacity, peak expiratory volume in the first second, PaO2, PaCO2, arterial pH, heart rate, and systolic and diastolic blood pressure. In the group treated with morphine the postoperative increase in heart and respiratory rate was significantly smaller than in the control group (p less than 0.01). Postoperative forced pulmonary volumes were higher in the morphine group (p less than 0.01). However, there were no differences in time of hospitalization between both groups. There were more complications in the control group, but the difference did not reach statistical significance.
authors.affiliation: Servicio de Anestesiología y Reanimación, Hospital 12 de Octubre, Madrid.
authors.forename: M S
authors.initials: MS
authors.lastname: Asuero de Lis
authors.forename: M
authors.initials: M
authors.lastname: Navarro Serrano
authors.forename: M
authors.initials: M
authors.lastname: Rubial Alvarez
authors.forename: J
authors.initials: J
authors.lastname: Pérez Peña
authors.forename: N
authors.initials: N
authors.lastname: Molins Gauna
mesh_terms: D015360:Analgesia, Epidural; D001011:Aorta / Q000601:surgery*; D005541:Forced Expiratory Volume; D006801:Humans; D007275:Injections, Intravenous; D008875:Middle Aged; D009022:Morphine Derivatives / Q000008:administration & dosage*; D010149:Postoperative Pain / Q000517:prevention & control*; D011446:Prospective Studies; D011897:Random Allocation; D014797:Vital Capacity
chemical_list: D009022:Morphine Derivatives
vernacular_title: Repercusión del dolor postoperatorio sobre los volúmenes pulmonares en pacientes sometidos a cirugía aórtica.