Curious George Goes to The Podium


Nose Cone vs Intubated Ventilation During Open Chest Surgery in Rats – Nina Krutrök, AstraZeneca The aim of this study was to investigate if nose cone ventilation is comparable to endotracheal intubation. The latter is the most common approach for air delivery to rats undergoing open chest surgery for cardiovascular research during for example induction of myocardial infarction or epicardial injections. This method of air delivery is technically challenging leading to prolonged procedures and increased risk of endotracheal complications such as laryngeal damage and laryngeal edema, oral pharyngeal and/or tracheal laceration due to multiple intubation attempts. Nose cone ventilation is a [...]

Curious George Goes to The Podium2024-03-18T04:28:35-05:00

Pharmacokinetics of Methadone in Cynomolgus Macaques


Introduction: Methadone, a synthetic opioid has gained popularity as an analgesic for surgical procedures as it provides a longer effective duration compared to common opioids for moderate to severe pain. Pharmacokinetic (PK) data in dogs and humans demonstrate therapeutic duration for 12-14 hours. This study investigates the pharmacokinetics of methadone at 2 dose levels in Cynomolgus Macaques for use as extended duration opioid for surgical procedures involving moderate to severe pain post-operatively. Methods: 8 Mauritius origin Cynomolgus Macaques were administered 0.2mg/kg and 0.5 mg/kg methadone hydrochloride intramuscularly (IM) and plasma and urine collected at predetermined time points and analyzed. Average mean [...]

Pharmacokinetics of Methadone in Cynomolgus Macaques2022-09-27T11:18:00-05:00

Surgical Anesthetic Preparation in the Juvenile NHP


Due to the high demand for NHP’s as research models, and the disruptions that Covid 19 created amongst the suppliers of NHP’s, we have been dealing with a downward trend in the range of body weights in our surgical animals. 4 to 5 years ago, the average size of an NHP that we would be performing a surgical procedure on was around 3.5 kgs. Now, we are routinely performing major surgical procedures on animals from 1.5 kgs to 2.5 kgs. These smaller animals are technically juveniles and they can have different anesthetic needs. This change in size of the animal can [...]

Surgical Anesthetic Preparation in the Juvenile NHP2022-09-27T10:16:23-05:00
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