ISSN: 2639-216X
Authors: Shah MK*
The present study was aimed to evaluate the comparative efficacies of incisional local anesthetics following rumenotomy in Black Bengal goats. Goats (N=40) were randomly allocated equally into LID, LID+A, BUP and SAL groups. After overnight fasting, goats were injected with 0.5 mg kg-1 meloxicam subcutaneously and 1 mg kg-1 diazepam intramuscularly. Left paravertebral analgesia were achieved in goats of aforementioned groups using 5 ml of 2% lidocaine, 2% lidocaine plus adrenaline, 0.5% bupivacaine and 0.9% NaCl. The rumenotomy was performed and before closing the skin, 2% lidocaine (7 mg kg-1), 2% lidocaine plus adrenaline (7 mg kg-1) and 0.5% bupivacaine (2.5 mg kg-1) were infiltrated incisionally in goats of LID, LID+A, BUP groups, respectively. However, the goats of SAL group were infiltrated incisionally with 5 ml of 0.9% saline. Pain and wound tenderness were evaluated by pricking and manual pressing around the wound whereas sedation was assessed by observing behavioral manifestations using dynamic interactive visual analogue scale before premedication, 0.5, 1, 2, 4, 8 and 22 hours after surgery. Data were analyzed using one-way ANOVA followed by Bonferroni test. Goats of LID and LID+A groups showed moderately less pain up to 4 hours. BUP groups exhibited the least pain at 4 and 8 hours. LID group measured lower (P<0.01) WT scores than SAL or BUP group at 0.5 hour. All local anesthetics treated goats exhibited less WT scores at 1-22 hours. Goats of all groups were sedated highest at 0.5 hour and sedation scores were decreased thereafter. The preemptively administered meloxicam combined with incisional infiltration of lidocaine provided excellent analgesia for a short period whereas lidocaine plus adrenaline and bupivacaine provided analgesia for a longer period. A multimodal analgesic approach including incisional local analgesic is suggested for postoperative pain control.
Keywords: Goats; Local Analgesics; Pain Rumenotomy; Sedation; Wound Tenderness
