Comparison of haemodynamic changes during two surgical methods for neutering female dogs.
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.
Höglund
O V
OV
Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, 750 07 Uppsala, Sweden. Electronic address: Odd.Hoglund@kv.slu.se.
Olsson
K
K
Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, 750 07 Uppsala, Sweden.
Hagman
R
R
Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, 750 07 Uppsala, Sweden.
Öhlund
M
M
Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, 750 07 Uppsala, Sweden.
Olsson
U
U
Department of Economics, Applied Statistics and Mathematics, Swedish University of Agricultural Sciences, Box 7013, 750 07 Uppsala, Sweden.
Lagerstedt
A S
AS
Department of Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, 750 07 Uppsala, Sweden.
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