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He J, Ma Y, Zhou N, Xu J, Wu W, Jiang J, Zhang F. The effect of warming ropivacaine on ultrasound-guided subgluteal sciatic nerve block: a randomized controlled trial. BMC Anesthesiol 2023; 23:372. [PMID: 37957544 PMCID: PMC10641952 DOI: 10.1186/s12871-023-02332-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND There is a long latent period for the sciatic nerve block before a satisfactory block is attained. Changes in the temperature of local anesthetics may influence the characters of the peripheral nerve block. This study was designed to evaluate the effect of warming ropivacaine on the ultrasound-guided subgluteal sciatic nerve block. METHODS Fifty-four patients for distal lower limbs surgery were randomly allocated into warming group (group W, n = 27) or room tempeture group (group R, n = 27) with the ultrasound-guided subgluteal sciatic nerve block. The group W received 30 ml of ropivacaine 0.5% at 30℃ and the group R received 30 ml of ropivacaine 0.5% at 23℃. The sensory and motor blockade were assessed every 2 min for 30 min after injection. The primary outcome was the onset time of limb sensory blockade. RESULTS The onset time of sensory blockade was shorter in group W than in group R (16 (16,18) min vs 22 (20,23) min, p < 0.001), and the onset time of motor blockade was also shorter in group W than in group R (22 (20,24) min vs 26 (24,28) min, p < 0.001). The onset time of sensory blockade for each nerve was shorter in group W than in group R (p < 0.001). No obvious differences for the duration of sensory and motor blockade and the patient satisfaction were discovered between both groups. No complications associated with nerve block were observed 2 days after surgery. CONCLUSIONS Warming ropivacaine 0.5% to 30℃ accelerates the onset time of sensory and motor blockade in the ultrasound-guided subgluteal sciatic nerve block and it has no influence on the duration of sensory and motor blockade. TRIAL REGISTRATION The trial was registered on October 3, 2022 in the Chinese Clinical Trial Registry ( https://www.chictr.org.cn/bin/project/edit?pid=181104 ), registration number ChiCTR2200064350 (03/10/2022).
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Affiliation(s)
- Jiliang He
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Rd, Hangzhou, 310009, Zhejiang, China
- Department of Anesthesiology, Cixi People Hospital Medical Health Group (Cixi People Hospital), NO.999 The Second Ring of the South Road, Hushan Street, Cixi, 315300, Zhejiang, China
| | - Yijun Ma
- Department of Anesthesiology, Cixi People Hospital Medical Health Group (Cixi People Hospital), NO.999 The Second Ring of the South Road, Hushan Street, Cixi, 315300, Zhejiang, China
| | - Nannan Zhou
- Department of Anesthesiology, Ningbo Medical Center Lihuili Hospital, NO.57 Xingning Rd, Ningbo, 315040, Zhejiang, China
| | - Jingpin Xu
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Rd, Hangzhou, 310009, Zhejiang, China
| | - Weidong Wu
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Rd, Hangzhou, 310009, Zhejiang, China
| | - Jiajie Jiang
- Department of Anesthesiology, Cixi People Hospital Medical Health Group (Cixi People Hospital), NO.999 The Second Ring of the South Road, Hushan Street, Cixi, 315300, Zhejiang, China
| | - Fengjiang Zhang
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Rd, Hangzhou, 310009, Zhejiang, China.
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Smits GJP. Comments on: "Effect of warming bupivacaine 0.5% on ultrasound-guided axillary plexus block. Randomized prospective double-blind study" by W. Trabelsi, A.B. Gabsia, A. Lebbi, W. Sammoud, I. Labbène, S. Kchelfi, M. Ferjani, published in Orthop Traumatol Surg Res 2017;103:71-75. Orthop Traumatol Surg Res 2017; 103:627. [PMID: 28389308 DOI: 10.1016/j.otsr.2017.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 03/29/2017] [Indexed: 02/02/2023]
Affiliation(s)
- G J P Smits
- Emergency Department, Catharina Hospital, PO Box 1350, 5602 ZA Eindhoven, The Netherlands.
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