Blood lactate concentrations in anesthetized dogs with intracranial disease.
BACKGROUND
The importance of blood lactate concentrations in dogs with intracranial disease has not been established, despite frequently observed hyperlactatemia in dogs undergoing general anesthesia for advanced imaging, surgery, or both.


OBJECTIVE
Blood lactate concentrations are elevated in anesthetized dogs with intracranial disease, compared with dogs with intervertebral disc disease (IVDD).


METHODS
Eighty-five hospitalized dogs undergoing advanced imaging, surgery, or both for primary neurologic disease; 30 with intracranial disease; 55 with IVDD.


METHODS
Retrospective study. Age, breed, neurologic diagnosis, time from anesthesia induction to measurement of blood lactate, blood lactate concentration under anesthesia, and concurrently measured heart rate, mean arterial pressure, PCV, arterial hemoglobin oxygen saturation, and arterial partial pressure of oxygen were included in a multivariable linear regression analysis.


RESULTS
Dogs with meningioma (adjusted mean lactate 2.99 mmol/L, 95% CL 2.21-4.05, P < 0.0001) and hydrocephalus (adjusted mean lactate 1.5 mmol/L, 95% CL 0.99-2.27, P= 0.003) had higher blood lactate concentrations compared with dogs with IVDD (adjusted mean lactate 0.79 mmol/L, 95% CL 0.6-1.04). Only dogs with meningioma had clinically important hyperlactatemia (>2.5 mmol/L).


CONCLUSIONS
Prospective studies are warranted to determine the degree and clinical importance of high blood lactate concentrations in dogs with intracranial disease.
James L Voss Veterinary Medical Center, Colorado State University, Fort Collins, CO, USA. lasulli@colostate.edu
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D000768:Anesthesia, General / Q000662:veterinary*; D000818:Animals; D001932:Brain Neoplasms / Q000097:blood / Q000662:veterinary*; D004283:Dog Diseases / Q000097:blood*; D004285:Dogs; D006849:Hydrocephalus / Q000097:blood / Q000662:veterinary*; D007405:Intervertebral Disc Displacement / Q000097:blood / Q000662:veterinary; D019344:Lactic Acid / Q000097:blood*
D019344:Lactic Acid