Assessment of change in end-tidal CO after fluid challenge as a marker of fluid responsiveness as measured by the aortic velocity time integral in healthy anesthetized mechanically ventilated dogs.

Objective: To evaluate if variation in the end-tidal CO partial pressure (∆Petco) after a fluid challenge could predict fluid responsiveness with a sensitivity of 75% and a specificity of 70% in healthy anesthetized and mechanically ventilated dogs.

Design: Diagnostic accuracy study.

Setting: University hospital.

Evaluation of cerebral autoregulation in dogs via transcranial color-coded duplex sonography and transient hyperemia testing.

Objective: To evaluate the changes in flow velocities of the middle cerebral artery before and after a carotid compression maneuver using transcranial color-coded duplex sonography (TCCD) in healthy anesthetized dogs under mechanical ventilation.

Design: Prospective study.

Setting: University teaching hospital.

Greater ischiatic notch plane versus parasacral block in dogs undergoing pelvic limb surgery: a retrospective noninferiority cohort study on perioperative opioid consumption.

Objective: To compare perioperative opioid consumption in dogs undergoing pelvic limb surgeries and receiving a lumbosacral plexus block by combining a lumbar [lateral pre-iliac (LPI)] block with a lumbosacral trunk [i.e. parasacral (PS group) or greater ischiatic notch plane (GIN group)] block.

Ultrasound-Guided Greater Ischiatic Notch Plane Block Combined with the Caudal Quadratus Lumborum Block (GIN-TONIC Block) in Dogs Undergoing Pelvic Limb Surgery: Preliminary Results.

This study assessed the analgesic and motor effects of the GIN-TONIC block, a combination of the greater ischiatic notch plane block and the caudal lateral quadratus lumborum block, in 24 dogs undergoing pelvic limb surgery. Dogs were randomly divided into two equal groups: G received acepromazine [(20 µg kg intravenously (IV)] as premedication, and G received dexmedetomidine (2 µg kg IV). General anesthesia was maintained with isoflurane, and both groups received a GIN-TONIC block using 2% lidocaine.

Tidal volume selection in volume-controlled ventilation guided by driving pressure versus actual body weight in healthy anesthetized and mechanically ventilated dogs: A randomized crossover trial.

Objective: To compare static compliance of the respiratory system (C) and the ratio of partial pressure of end-tidal to arterial carbon dioxide (Pe'CO/PaCO), in healthy dogs using two approaches for tidal volume (V) selection during volume-controlled ventilation: body mass based and driving pressure (ΔPaw) guided.

Study Design: Randomized, nonblinded, crossover, clinical trial.

Animals: A total of 19 client-owned dogs anesthetized for castration and ovariohysterectomy.