A clinical comparison of remifentanil or alfentanil in propofol-anesthetized cats undergoing ovariohysterectomy.

Sixteen cats were used to compare the cardiovascular and anesthetic effects of remifentanil (REMI) or alfentanil (ALF) in propofol-anesthetized cats undergoing ovariohysterectomy. After premedication with acepromazine, anesthesia was induced and maintained with a constant rate infusion of propofol (0.3 mg/kg/min).

[Right-to-left shunt determination in dog lungs under inhalation anesthesia with rebreathing and non-rebreathing system].

Purpose: To investigatge right-to-left shunt determination in dog lungs under inhalantion anesthesia with non-rebreathing and rebreathing systems and fraction of inspired oxygen (F I O2) of 0.9 and 0.4, respectively.

[The algimetry evaluation by thermic and pressoric nociceptive stimulus in dogs pre treated with methotrimeprazine, midazolam and ketamine with or without butorphanol or buprenorphine].

Purpose: This study aimed at quantifies the pain in dogs under dissociative anesthesia, across thermal and pressoric stimulus and quantify the reasonable period between two different opioids analgesics.

Methods: In this study, 30 dogs were used and, divided into three groups of 10 animals each, in which the animals of GI received methotrimeprazine and midazolam put on the same syringe with ketamine. The animals of GII received the same treatment of GI but associated with butorphanol and finally the animals of GIII received the same treatment of GI but associated with buprenorphine.