title: Comparison of haemodynamic changes during two surgical methods for neutering female dogs.
abstract: The aim was to investigate if intraoperative registrations of blood pressure and heart rate could be used to estimate surgical trauma. In a prospective clinical trial, registrations in eight dogs neutered by laparoscopic ovariectomy (LOE) were compared with eight dogs subjected to open ovariohysterectomy (OHE). For comparisons phases were used: phase zero=steady state after induction of anaesthesia; phase one=opening of abdomen; phase two=severing of ovarian pedicles; and, phase three=abdominal closure. During LOE, mean systolic blood pressure increased by 7 mmHg (p=0.05) and 15 mmHg (p=0.01) from phase zero to phase one and two, respectively, and during OHE by 3 mmHg (ns) and 29 mmHg (p<0.0001), respectively. The increase from phase one to phase two differed between groups (p=0.03). Heart rate did not change. Frequent intraoperative measurements of blood pressure appear a promising method for evaluating surgical trauma.
authors.affiliation: Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, 750 07 Uppsala, Sweden. Electronic address: Odd.Hoglund@kv.slu.se.
authors.forename: O V
authors.initials: OV
authors.lastname: Höglund
authors.affiliation: Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, 750 07 Uppsala, Sweden.
authors.forename: K
authors.initials: K
authors.lastname: Olsson
authors.affiliation: Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, 750 07 Uppsala, Sweden.
authors.forename: R
authors.initials: R
authors.lastname: Hagman
authors.affiliation: Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, 750 07 Uppsala, Sweden.
authors.forename: M
authors.initials: M
authors.lastname: Öhlund
authors.affiliation: Department of Economics, Applied Statistics and Mathematics, Swedish University of Agricultural Sciences, Box 7013, 750 07 Uppsala, Sweden.
authors.forename: U
authors.initials: U
authors.lastname: Olsson
authors.affiliation: Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, 750 07 Uppsala, Sweden.
authors.forename: A S
authors.initials: AS
authors.lastname: Lagerstedt
mesh_terms: D000818:Animals; D001794:Blood Pressure; D004285:Dogs; D005260:Female; D006339:Heart Rate; D007044:Hysterectomy / Q000009:adverse effects / Q000379:methods / Q000662:veterinary*; D010535:Laparoscopy / Q000009:adverse effects / Q000662:veterinary*; D010052:Ovariectomy / Q000009:adverse effects / Q000379:methods / Q000662:veterinary*; D011446:Prospective Studies