Evaluation of gastric and bladder tonometry as indicators of tissue perfusion in induced hypotension in dogs.

Objective: To evaluate the use of gastric (PgCO ) and bladder (PbCO ) tonometry for assessing tissue hypoperfusion in dogs during sevoflurane-induced hypotension, and to compare these measurements with delivery of oxygen, arterial oxygen content, and plasma lactate concentration.

Design: Prospective experimental trial.

Setting: University veterinary teaching hospital.