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  • Title: Subcoracoid tunnel block as an alternative infraclavicular brachial plexus approach -a case series.
    Author: Diwan S, Sethi D, Gaikwad A, Sancheti P, Nair A.
    Journal: Korean J Anesthesiol; 2020 Oct; 73(5):450-454. PubMed ID: 32773725.
    Abstract:
    BACKGRUOND: Magnetic resonance neurography shows the brachial plexus cords in the subcoracoid tunnel beneath the pectoralis minor. With an ultrasound scan along the brachial line, the brachial plexus cords in the subcoracoid tunnel can be targeted using an in-plane needle approach. We describe this new approach to the infraclavicular block called the "subcoracoid tunnel block." CASE: Twenty patients were administered with the ultrasound-guided subcoracoid tunnel block for the below-elbow surgery. The contact of the needle tip with cords was visible in all 20 patients. With neurostimulation, the posterior cord was identified in 11 (55%) and medial cord in 9 (45%) patients on the first needle pass. The subcoracoid tunnel block was successful in 16 patients (80%). CONCLUSIONS: Our case series shows that the subcoracoid tunnel block is an excellent alternative technique for the infraclavicular block. Its advantages include better needle-cord visibility and easy identification of the brachial plexus cords.
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