Cardiovascular and analgesic effects of epidural administration of ropivacaine alone or in combination with morphine in cats

Ciência Rural

Padilha, Vanessa Sasso²  Moresco, Marina¹  Regalin, Doughlas²  Tocheto, Ronise¹  Oleskovicz, Nilson¹ 

[1] UDESC, Lages, Brazil;Universidade do Estado de Santa Catarina, Lages, Brazil

关键词: analgesia;    locoregional anesthesia;    pain;    pain scale;    morphineINTRODUÇÃO:A percepção da dor em felinos é particularmente um desafio;    os sinais fisiológicos e mudanças comportamentais nem sempre são facilmente reconhecidas (TAYLOR & ROBERTSON;    2004);   

DOI  :  10.1590/0103-8478cr20131597

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

Seeking to evaluate the cardiovascular and analgesic effects of two epidural protocols in cats undergoing OH, 16 female adult mixed-breed cats were induced to general anesthesia, and then epidural was achieved with 0,26mL kg-1 of isolated ropivacaine (GR) (0,75%) or associated with 0,1mg kg-1 morphine (GRM). ETCO2, RR, HR, SAP, T° and muscular relaxation were evaluated in baseline, 30 minutes after epidural; after skin incision, ovarian pedicles and uterine cervix ligation; end of laparohraphy; and end of surgery. They received fentanyl if SAP, HR or f, rise in 20% of baseline. At the end of OH, a multidimensional pain scale for cats was used during 12 hours, and rescued with morphine 0,2mg kg-1, when the scale score was ≥8 points. There were no differences in ETCO2, RR, T°C and muscular relaxation. SAP increased in both groups during the ovarian pedicle and cervix clamping. In 100% of the animals in GR and 87.5% of the GRM, it was necessary fentanyl during surgery. In 100% of GR animals was required analgesic rescue with morphine at 2 and 4 hours of postoperative evaluation, compared with 50% and 37,5% in GRM, where after the analgesic rescue, in the next hours, the sum of points was similar between groups. It was concluded that epidural administration of morphine and ropivacaine in cats submitted to OH, reduces post operatory analgesic requirements to 56,2% during the first four hours, and promote adequate analgesia for 12 hours in cats submitted to OH, when compared to ropivacaine alone

【 授权许可】

Unknown