Recent meta-analysis compared the classical and costoclavicular approaches for ultrasound-guided infraclavicular brachial plexus block (ICB) in terms of onset, performance, and safety. The primary outcomes included sensory and motor block onset time, the number of patients with complete block at 30 minutes, and the secondary outcomes encompassed block performance time, number of attempts, duration of the block, and any incidence of complications. The review included five trials with 374 adult patients and found no significant difference in sensory and motor block onset times and block performance time between the classical and costoclavicular approaches of ICB. Additionally, the number of patients with complete block at 30 minutes did not significantly differ between the two approaches. The meta-analysis revealed no statistically significant differences in motor block duration, number of attempts and redirections, duration of the block, or the incidence of complications between the classical and costoclavicular approaches. The overall level of evidence for most outcomes was low, suggesting that further studies are warranted to confirm the findings.
Lack of Standardization and Limitations
The review highlighted the lack of standardization in classical and costoclavicular approaches, particularly in the volume and type of local anesthetic used, which led to inconsistent onset and duration measurements. The meta-analysis also noted heterogeneity in outcome definitions and inconsistent follow-up methods as limitations affecting the assessment of block duration between the two techniques. The review also emphasized the need for further research to address these limitations and provide more definitive evidence on the superiority of the costoclavicular approach.
Implications
In conclusion, the review and meta-analysis revealed that the costoclavicular approach was not superior or inferior to the classical technique for infraclavicular brachial plexus block. However, the quality of evidence was low, and further studies are needed to corroborate the findings. The review also highlighted the need for addressing limitations and the underutilization of emerging techniques, such as the costoclavicular approach, for informed clinical practice and further research in ICB techniques.
Key Points -
- A systematic review and meta-analysis compared the classical and costoclavicular approaches for ultrasound-guided infraclavicular brachial plexus block (ICB) in terms of onset, performance, and safety. The primary outcomes included sensory and motor block onset time, the number of patients with complete block at 30 minutes, and the secondary outcomes encompassed block performance time, number of attempts, duration of the block, and any incidence of complications. The review included five trials with 374 adult patients and found no significant difference in sensory and motor block onset times, number of patients with complete block at 30 minutes, and block performance time between the classical and costoclavicular approaches of ICB. The meta-analysis also revealed no statistically significant differences in motor block duration, number of attempts and redirections, duration of the block, or the incidence of complications between the classical and costoclavicular approaches. The overall level of evidence for most outcomes was low, suggesting that further studies are warranted to confirm the findings.
- In conclusion, the review and meta-analysis revealed that the costoclavicular approach was not superior or inferior to the classical technique for infraclavicular brachial plexus block. However, the quality of evidence was low, and further studies are needed to corroborate the findings. The review also highlighted the need for addressing limitations and the underutilization of emerging techniques, such as the costoclavicular approach, for informed clinical practice and further research in ICB techniques.
Reference –
Garg, Heena, Makhija, Purva, Jain, Dhruv, Kumar, Shailendra, Kashyap, Lokesh. Comparison of the classical approach and costoclavicular approach of ultrasound-guided infraclavicular block: A systematic review and meta-analysis. Indian Journal of Anaesthesia 68(7):p 606-615, July 2024. | DOI: 10.4103/ija.ija_1124_23
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