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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 (0.3mg/kg/min). REMI or ALF infusions were administered simultaneously with propofol. Heart rate (HR), systolic arterial pressure (SAP), pulse oximetry (SpO2), rectal temperature (RT), and response to surgical stimulation were recorded at predefined time points during anesthesia. Data [mean±standard deviation (SD)] were analyzed by analysis of variance (ANOVA) for repeated measures followed by a Dunnett’s test and Student t-test (P <0.05). SAP was significantly lower in ALF group than in REMI group. Extubation time was significantly shorter in REMI than in ALF group. Overall infusion rate of REMI and ALF was 0.24±0.05μg/kg/min and 0.97±0.22μg/kg/min, respectively. The combination of propofol and REMI or ALF provided satisfactory anesthesia in cats undergoing ovariohysterectomy. [ABSTRACT FROM AUTHOR]

Objective--To compare analgesic effects of tramadol, codeine, and ketoprofen administered alone and in combination and their effects on concentrations of blood glucose, serum cortisol, and serum interleukin (IL)-6 in dogs undergoing maxillectomy or mandibulectomy. Animals--42 dogs with oral neoplasms. Procedures--30 minutes before the end of surgery, dogs received SC injections of tramadol (2 mg/kg), codeine (2 mg/kg), ketoprofen (2 mg/kg), tramadol + ketoprofen, or codeine + ketoprofen (at the aforementioned dosages). Physiologic variables, analgesia, and sedation were measured before (baseline) and 1, 2, 3, 4, 5, and 24 hours after surgery. Blood glu cose, serum cortisol, and serum IL-6 concentrations were measured 1, 3, 5, and 24 hours after administration of analgesics. Results--All treatments provided adequate postoperative analgesia. Significant increases in mean ± SD blood glucose concentrations were detected in dogs receiving tramadol (96 ± 14 mg/dL), codeine (120 ± 66 mg/dL and 96 ± 21 mg/dL), ketoprofen (105 ± 22 mg/dL), and codeine + ketoprofen (104 ± 16 mg/dL) at 5, 1 and 3, 5, and 3 hours after analgesic administration, respectively, compared with preoperative (baseline) values. There were n significant changes in physiologic variables, serum IL-6 concentrations, or serum cortisol concentrations. Dogs administered codeine + ketoprofen had light but significant sedation at 4, 5, and 24 hours. Conclusions and Clinical Relevance--Opioids alone or in combination with an NSAID promoted analgesia without adverse effects during the 24-hour postoperative period in dogs undergoing maxillectomy or mandibulectomy for removal of oral neoplasms. [ABSTRACT FROM AUTHOR]

The article discusses a research study on the probability of producing circulatory arrest by occlusion of the pulmonary trunk as a substitute to the venous inflow occlusion through the left hemithorax. It states that mongrel dogs were divided into two groups wherein group one underwent outflow occlusion while the other group underwent circulatory arrest for eight minutes. It mentions that several examinations were performed including, but not limited to, echocardiography, electrocardiography, and physical examination.