Peer-reviewed veterinary case report
Pain relief after spay surgery in Greyhound dogs compared between
By Morgaz, Juan et al.·Published in Veterinary anaesthesia and analgesia·2021·Department of Animal Medicine and Surgery, Spain·View original on PubMed →
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Original publication title: Preperitoneal ropivacaine infusion versus epidural ropivacaine-morphine for postoperative analgesia in dogs undergoing ovariohysterectomy: a randomized clinical trial.
- Species:
- dog
Plain-English summary
A group of 38 Greyhound female dogs underwent spaying (ovariohysterectomy) and were given either a continuous infusion of ropivacaine at the surgical site or an epidural injection of ropivacaine and morphine for pain relief. Both methods were effective in managing pain, but the continuous infusion did not cause any motor blockage, allowing the dogs to move normally afterward. Only two dogs needed extra pain relief, one from each group. Overall, the continuous infusion of ropivacaine was found to be a good option for pain management after surgery.
People also search for: dog spay pain relief · Greyhound surgery recovery · ropivacaine for dogs
Abstract
OBJECTIVE: To assess the effect of continuous wound infusion (CWI) with preperitoneal ropivacaine on postoperative analgesia and compare it with the epidural administration of ropivacaine and morphine in bitches undergoing ovariohysterectomy. STUDY DESIGN: A parallel, randomized, clinical, prospective and nonblinded study. ANIMALS: A group of 38 Greyhound bitches. METHODS: In the catheter group (CathG), CWI with ropivacaine 1% (1 mg kg + 0.8 mg kghour) was applied to the preperitoneal space over the surgical incision. In the epidural group (EpiG), ropivacaine 0.5% (1.3 mg kg) and morphine (0.1 mg kg) were epidurally administered. Occipital-coccygeal length was used to calculate the volume for the epidural. Pain was scored using a dynamic interactive visual analogue scale (DIVAS) and Glasgow composite measure pain scale-short form (CMPS-SF) before anaesthesia and at 2, 4, 6, 18, 21 and 24 hours after extubation. Incisional sensitivity using a dynamometer (MWTs-incision) was evaluated simultaneously. Plasma ropivacaine and cortisol concentrations, degree of sedation, motor blockade and response to interdigital clamping were measured or assessed. A two-way mixed analysis of variance and a Mann-Whitney U test were used to analyse data; p < 0.05. RESULTS: No differences were detected in the DIVAS (p = 0.301), CMPS-SF (p = 0.600) scores, MWTs-incision measurements (p = 0.257) and cortisol values (p = 0.878) between the groups. Rescue analgesia was required in two dogs, one in each group, at 2 hours. Sedation, motor blockade and negative response to interdigital clamping were detected in EpiG at 2, 4 and 6 hours. Mean plasma ropivacaine values were higher in CathG (0.475 ± 0.164 ng mL) than in EpiG (0.184 ± 0.213 ng mL; p = 0.001). CONCLUSION AND CLINICAL RELEVANCE: Compared with epidural ropivacaine and morphine, CWI with preperitoneal ropivacaine is an effective analgesic technique for postoperative pain management in bitches undergoing ovariohysterectomy without motor blockade.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/34561181/