The aim of the study was to evaluate the post-operative analgesic efficacy of the intermittent administration of LA through the WSC in canine patients who undergone surgical limb amputation. Ropivacaine (R) was used in order to evaluate possible additional benefits of this drug, actually rarely used in veterinary medicine. 20 dogs undergoing limb amputation at the Ospedale Veterinario Universitario were assigned to 2 groups: G1 received the routine post-operative analgesic protocol (buprenorphine, 10 µg/kg QUID – carprofen 2 mg/kg BID); G2 received, in addiction, boluses of R (1 mg/kg QUID) through the WSC for 24h after surgery. The rescue analgesic protocol provided for the administration of buprenorphine (10 µg/kg) in both groups. Every dog was submitted to the same evaluations. During pre-operative phase, a behavioral evaluation report (ad hoc designed) and the pain assessment (Colorado Pain Scale and Melbourne Pain Scale) have been assessed. During the surgery, HR and NIBP were monitored and recorded. Pain scores (Colorado and Melbourne) were assessed for several time post-operatively (T2, T8, T16, T24). In addition, HR and RR were measured in this phase (T0, T6, T12, T18, T24) and a descriptive evaluation of post-operating course has been made too. The use of WSC demonstrated to provide a more effective analgesia when compared to traditional systemic analgesia after limb amputation and R provided optimal analgesia without adverse effects.
Ropivacaine via wound soaker catheter (WSC) in post-operative pain management of amputated dog
Giuseppe Quaranta;Mitzy Mauthe Degerfeld
2018-01-01
Abstract
The aim of the study was to evaluate the post-operative analgesic efficacy of the intermittent administration of LA through the WSC in canine patients who undergone surgical limb amputation. Ropivacaine (R) was used in order to evaluate possible additional benefits of this drug, actually rarely used in veterinary medicine. 20 dogs undergoing limb amputation at the Ospedale Veterinario Universitario were assigned to 2 groups: G1 received the routine post-operative analgesic protocol (buprenorphine, 10 µg/kg QUID – carprofen 2 mg/kg BID); G2 received, in addiction, boluses of R (1 mg/kg QUID) through the WSC for 24h after surgery. The rescue analgesic protocol provided for the administration of buprenorphine (10 µg/kg) in both groups. Every dog was submitted to the same evaluations. During pre-operative phase, a behavioral evaluation report (ad hoc designed) and the pain assessment (Colorado Pain Scale and Melbourne Pain Scale) have been assessed. During the surgery, HR and NIBP were monitored and recorded. Pain scores (Colorado and Melbourne) were assessed for several time post-operatively (T2, T8, T16, T24). In addition, HR and RR were measured in this phase (T0, T6, T12, T18, T24) and a descriptive evaluation of post-operating course has been made too. The use of WSC demonstrated to provide a more effective analgesia when compared to traditional systemic analgesia after limb amputation and R provided optimal analgesia without adverse effects.
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