Comparison of racemic ketamine versus (S+) ketamine when combined with midazolam for anesthesia of Callithrix jacchus and Callithrix penicillata.

Ten common marmosets (Callithrix jacchus) and 10 black-tufted marmosets (Callithrix penicillata) were immobilized to compare the anesthetic effects of racemic ketamine and (S+) ketamine in combination with midazolam. The animals were distributed into four groups: five common marmosets (group CJR) and five black-tufted marmosets (group CPR) received 9.8 +/- 1.

Comparison of ketamine and S(+)-ketamine, with romifidine and diazepam, for total intravenous anesthesia in horses.

Objective: To compare the quality of induction and recovery, degree of muscle relaxation, clinically apparent potency and cardiopulmonary effects of racemic ketamine or S(+)-ketamine when used for total intravenous anesthesia in horses.

Study Design: Prospective randomized clinical trial

Animals: Sixteen healthy stallions (323 +/- 99 kg), with a mean age of 6.2 years, undergoing castration.

Hydroxyethyl starch is superior to lactated Ringer as a replacement fluid in a pig model of acute normovolaemic haemodilution.

Background: Tissue tolerance to oxygen privation during acute normovolaemic haemodilution with different fluids remains unclear. We tested the hypothesis that hydroxyethyl starch (HES) is superior to lactated Ringer's solution in pigs for preserving tissue perfusion during acute normovolaemic haemodilution.

Methods: Twenty-four animals were randomized into control, lactated Ringer's solution and HES groups.