Comparison of lidocaine incisional block techniques on early postoperative pain scores in dogs undergoing ovariohysterectomy

IF 1.9 2区 农林科学 Q2 VETERINARY SCIENCES
Wanwisa Chaoum , Piyasak Wipoosak , B. Duncan X. Lascelles , Supranee Jitpean , Naruepon Kampa , Thanikul Srithunyarat
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引用次数: 0

Abstract

Objective

To compare postoperative pain scores following lidocaine incisional block techniques (infiltration versus splash methods) with an intraperitoneal splash block in dogs undergoing ovariohysterectomy.

Study design

Prospective, randomized, double-blinded, clinical study.

Animals

A total of 30 client-owned female dogs.

Methods

All dogs were premedicated with intramuscular acepromazine (0.02 mg kg–1). General anesthesia was induced with intravenous propofol and maintained with isoflurane in oxygen. Fentanyl (2 μg kg–1) was administered intravenously before skin incision, and lidocaine (4 mg kg–1) splashed intraperitoneally during surgery. Dogs were randomly divided into two groups (n = 15 per group) based on incisional block technique, with blocks performed at the end of surgery. Group INC was administered incisional infiltration of lidocaine (2 mg kg–1 plus equal volume of saline, final dilution of 1%), with injection into subcutaneous tissues along in the incision. Group SP was administered an incisional splash of lidocaine on the subcutaneous tissues before skin closure. Both techniques were performed in each group, lidocaine for the designated treatment and saline for the other. Postoperative physiological variables were measured and pain was evaluated using the Glasgow Composite Measure Pain Scale–Short Form (CMPS-SF) at 30, 60, 90 and 120 minutes after extubation. Data were statistically analyzed using a linear mixed model with Bonferroni correction.

Results

At 120 minutes after extubation, CMPS-SF pain scores were significantly lower in group SP than in group INC (1.9 ± 0.9 versus 2.9 ± 0.9, p = 0.002; mean ± standard deviation). However, pain scores in both groups were below the intervention threshold for rescue. No dogs required rescue analgesia.

Conclusions and clinical relevance

Both lidocaine incisional infiltration and splash, combined with intraperitoneal splash, provided effective analgesia for up to 2 hours postoperatively in dogs undergoing ovariohysterectomy. Lidocaine incisional splash is recommended as a simpler technique associated with lower pain scores.
利多卡因切口阻滞技术对卵巢子宫切除术犬术后早期疼痛评分的比较。
目的:比较利多卡因切口阻滞技术(浸润法与喷溅法)与腹腔内喷溅阻滞对卵巢子宫切除术犬术后疼痛评分。研究设计:前瞻性、随机、双盲临床研究。动物:共有30只客户拥有的雌性狗。方法:所有犬预先肌注乙酰丙嗪0.02 mg kg-1。静脉异丙酚诱导全身麻醉,异氟烷氧维持。切开皮肤前静脉注射芬太尼(2 μg kg-1),术中腹腔注射利多卡因(4 mg kg-1)。采用切口阻滞技术将犬随机分为两组(每组15只),手术结束后进行阻滞。INC组给予利多卡因(2 mg kg-1加等体积生理盐水,最终稀释度为1%)切口浸润,沿切口皮下组织注射。SP组在皮肤闭合前给予皮下组织切口溅射利多卡因。两种方法均在每组进行,利多卡因用于指定治疗,生理盐水用于另一组。在拔管后30,60,90和120分钟测量术后生理变量并使用格拉斯哥复合测量疼痛量表-短表(CMPS-SF)评估疼痛。采用Bonferroni校正的线性混合模型对数据进行统计分析。结果:拔管后120分钟,SP组CMPS-SF疼痛评分明显低于INC组(1.9±0.9比2.9±0.9,p = 0.002;平均值±标准差)。然而,两组患者的疼痛评分均低于干预阈值。没有狗需要急救镇痛。结论及临床意义:利多卡因切口浸润和喷溅联合腹腔内喷溅均可为卵巢子宫切除术后2小时的犬提供有效的镇痛。利多卡因切口喷溅是一种较简单的技术,可降低疼痛评分。
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来源期刊
Veterinary anaesthesia and analgesia
Veterinary anaesthesia and analgesia 农林科学-兽医学
CiteScore
3.10
自引率
17.60%
发文量
91
审稿时长
97 days
期刊介绍: Veterinary Anaesthesia and Analgesia is the official journal of the Association of Veterinary Anaesthetists, the American College of Veterinary Anesthesia and Analgesia and the European College of Veterinary Anaesthesia and Analgesia. Its purpose is the publication of original, peer reviewed articles covering all branches of anaesthesia and the relief of pain in animals. Articles concerned with the following subjects related to anaesthesia and analgesia are also welcome: the basic sciences; pathophysiology of disease as it relates to anaesthetic management equipment intensive care chemical restraint of animals including laboratory animals, wildlife and exotic animals welfare issues associated with pain and distress education in veterinary anaesthesia and analgesia. Review articles, special articles, and historical notes will also be published, along with editorials, case reports in the form of letters to the editor, and book reviews. There is also an active correspondence section.
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