Comparison of tissue oxygen saturation in ovariohysterectomized dogs recovering on room air versus nasal oxygen insufflation.
OBJECTIVE
To compare tissue oxygen saturation in ovariohysterectomized dogs recovering postoperatively on room air versus nasal oxygen insufflation.


METHODS
Prospective clinical study.


METHODS
University teaching hospital.


METHODS
Twenty dogs undergoing ovariohysterectomy.


METHODS
Dogs were randomized to breathe either room air or 100 mL/kg/min of nasal oxygen insufflation for 2 hours postoperatively. Tissue oxygen saturation (StO(2)) was evaluated at 2 mm and 20 mm lateral to the surgical incision, as well as in the inguinal region using a noninvasive tissue oximeter.


RESULTS
In dogs recovered on nasal oxygen insufflation (n = 10), tissue oxygen saturation was significantly higher--20 mm from the surgical site (88.44 ± 2.50%, P = 0.02) and in the inguinal region (83.56 ± 1.91%, P = 0.032)-- compared to dogs recovered on room air (n = 10, 79.11% ± 2.50 and 77.12% ± 1.91, respectively).


CONCLUSIONS
In ovariohysterectomized dogs, oxygen supplementation for 2 hours postoperatively improves tissue oxygen saturation 20 mm adjacent to the linea alba and in the inguinal region. Oxygen supplementation in postoperative dogs is an inexpensive and easily applicable method to improve tissue oxygen saturation.
Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Colorado State University, Fort Collins, CO 80523, USA. lauren.sullivan@colostate.edu
Lauren A
LA
Sullivan
Vicki L
VL
Campbell
Steven V
SV
Radecki
Craig B
CB
Webb
D000388:Air; D000704:Analysis of Variance; D000818:Animals; D004285:Dogs / Q000601:surgery; D005260:Female; D007044:Hysterectomy / Q000662:veterinary*; D007264:Inguinal Canal / Q000502:physiology; D007327:Insufflation / Q000379:methods / Q000662:veterinary*; D010052:Ovariectomy / Q000662:veterinary*; D010092:Oximetry / Q000662:veterinary; D010102:Oxygen Inhalation Therapy / Q000662:veterinary*; D011182:Postoperative Care / Q000379:methods* / Q000662:veterinary*; D012582:Schools, Veterinary; D014945:Wound Healing