» Articles » PMID: 32925256

Ultrasound-guided Supraclavicular Vs. Retroclavicular Block of the Brachial Plexus: Comparison of Ipsilateral Diaphragmatic Function: A Randomised Clinical Trial

Overview
Specialty Anesthesiology
Date 2020 Sep 14
PMID 32925256
Citations 4
Authors
Affiliations
Soon will be listed here.
Abstract

Background: The ultrasound-guided retroclavicular block (RCB) is a recently described alternative approach to brachial plexus blockade at the level of the cords. Although more distal blockade of the brachial plexus is thought to be associated with a lower incidence of phrenic nerve block, the impact of RCB on ipsilateral diaphragmatic function has not been formally investigated.

Objective: To compare the effects of supraclavicular and retroclavicular brachial plexus block on diaphragmatic function.

Setting: A single tertiary hospital, study period from December 2017 to May 2019.

Design: Double-blinded, randomised study.

Patients: A total of 40 patients undergoing upper extremity surgery below the axilla. Exclusion criteria included significant pulmonary disease, BMI more than 40 and contra-indication to peripheral nerve block.

Interventions: Patients were randomised to supraclavicular or retroclavicular brachial plexus block with ropivacaine 0.5%.

Outcome Measures: Phrenic block was assessed by measuring changes in diaphragmatic excursion using M-mode ultrasound, and maximum inspiratory volume on incentive spirometry from baseline, at 15 and 30 min postblock, and postoperatively. Comparative assessment of block characteristics included timing and distribution of sensory and motor block onset in the upper extremity, and scanning and block performance times.

Results: The incidence of phrenic block in the supraclavicular group was higher by ultrasound imaging (70 vs. 15%) and also by pulmonary function testing (55 vs. 5%), with both diaphragmatic excursion and maximum inspiratory volume decreasing to a greater extent after supraclavicular block (SCB) compared with RCB at 15, 30 min and postoperative time points (repeated measures analysis of variance, P < 0.001). There was no difference in timing and extent of distal arm block, but suprascapular and axillary nerves were more consistently blocked after SCB than after RCB.

Conclusion: The current study confirms the hypothesis that a RCB is significantly less likely to affect ipsilateral diaphragmatic function than a SCB.

Trial Registration: Clinicaltrials.gov identifier: NCT02631122.

Citing Articles

Addition of Liposomal Bupivacaine to Standard Bupivacaine versus Standard Bupivacaine Alone in the Supraclavicular Brachial Plexus Block: A Randomized Controlled Trial.

Chan T, Wong J, Wang F, Fang C, Yung C, Chan M Anesthesiology. 2024; 141(4):732-744.

PMID: 38696340 PMC: 11389883. DOI: 10.1097/ALN.0000000000005035.


Just the facts: brachial plexus blocks for upper extremity injuries in the emergency department.

Mirsch D, Jelic T, Prats M, Dreyfuss A, Yates E, Kummer T CJEM. 2023; 26(4):228-231.

PMID: 38060159 DOI: 10.1007/s43678-023-00628-6.


Effectiveness of Brachial Plexus Blocks in Obesity: Secondary Analysis of Randomized Controlled Trial.

Ali B, Palazzo M, Tien H Hand (N Y). 2023; 19(6):936-940.

PMID: 36960486 PMC: 11342691. DOI: 10.1177/15589447231161039.


Effects of the costoclavicular block versus interscalene block in patients undergoing arthroscopic shoulder surgery under monitored anesthesia care: a randomized, prospective, non-inferiority study.

Luo Q, Zheng J, Yang C, Wei W, Wang K, Xiang X Korean J Anesthesiol. 2023; 76(5):413-423.

PMID: 36617951 PMC: 10562073. DOI: 10.4097/kja.22638.

References
1.
Mak P, Irwin M, Ooi C, CHOW B . Incidence of diaphragmatic paralysis following supraclavicular brachial plexus block and its effect on pulmonary function. Anaesthesia. 2001; 56(4):352-6. DOI: 10.1046/j.1365-2044.2001.01708-2.x. View

2.
Hebbard P, Royse C . Ultrasound guided posterior approach to the infraclavicular brachial plexus. Anaesthesia. 2007; 62(5):539. DOI: 10.1111/j.1365-2044.2007.05066.x. View

3.
Kang R, Chung Y, Ko J, Yang M, Choi D . Reduced Hemidiaphragmatic Paresis With a "Corner Pocket" Technique for Supraclavicular Brachial Plexus Block: Single-Center, Observer-Blinded, Randomized Controlled Trial. Reg Anesth Pain Med. 2018; 43(7):720-724. DOI: 10.1097/AAP.0000000000000795. View

4.
Dullenkopf A, Blumenthal S, Theodorou P, Roos J, Perschak H, Borgeat A . Diaphragmatic excursion and respiratory function after the modified Raj technique of the infraclavicular plexus block. Reg Anesth Pain Med. 2004; 29(2):110-4. DOI: 10.1016/j.rapm.2003.12.001. View

5.
Petrar S, Seltenrich M, Head S, Schwarz S . Hemidiaphragmatic paralysis following ultrasound-guided supraclavicular versus infraclavicular brachial plexus blockade: a randomized clinical trial. Reg Anesth Pain Med. 2015; 40(2):133-8. DOI: 10.1097/AAP.0000000000000215. View