Effect of oral administration of pregabalin on physiological and echocardiographic variables in healthy cats

作者：Meng Li, Yue Wu, Hangbin Chen, Xinyi Xu, Haojie Peng, Bingyan Wei, Yunjie Zhu, Zhen Yang · 发表于：Journal of Feline Medicine and Surgery · 年份：2024 · DOI：10.1177/1098612x241250245 · 被引用次数：5 · 研究领域：Veterinary Pharmacology and Anesthesia、Anesthesia and Pain Management、Cardiovascular Conditions and Treatments

OBJECTIVES: The aim of this study was to evaluate the efficacy of a single dose of oral pregabalin (PGB) for sedation and its impact on physiological and echocardiographic variables in healthy cats. METHODS: This study was a randomised, blinded, crossover trial. Eight cats were randomly assigned to receive PGB or placebo, with a 1-week washout period between each administration. Cats in the treatment group received oral PGB at varying doses (low dose: 2.5 mg/kg, medium dose: 5 mg/kg, high dose: 10 mg/kg). Systolic blood pressure (SBP), pulse rate (PR), respiratory rate (RR) and sedation score were measured at intervals of 30 mins after administration. Echocardiography was performed 120 mins after administration. RESULTS: Oral administration of PGB 2.5 mg/kg and 5 mg/kg significantly increased sedation scores starting at 150 mins, while 10 mg/kg PGB showed a significant increase in sedation scores starting at 120 mins compared with placebo. PGB 5 mg/kg and 10 mg/kg resulted in a significant reduction in SBP compared with placebo, with minimal impact on PR and RR. In addition, PGB 10 mg/kg resulted in significant changes in the peak velocity of late diastolic transmitral flow (A) and the ratio of peak velocity of early diastolic transmitral flow and A; however, these changes were of marginal clinical significance. CONCLUSIONS AND RELEVANCE: A single dose of oral PGB could cause mild to moderate sedation. Hypotension was more prevalent in the PGB 5 mg/kg and 10 mg/kg groups amon...