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  Indian J Med Microbiol
 

Figure 1: (a) Technique of ISB, 18G Tuohy needle near brachial plexus under high-frequency ultrasound probe and in-plane approach. (b) Catheter is clearly visualised near the lower end of brachial plexus; (c) Contrast spread within the brachial plexus sheath and cervical epidural space (arrows). SA: scalene anterior muscle; SM: scalene medius muscle; BP: brachial plexus; SCM: sternocleidomastoid muscle; SA: scalene anterior muscle; SM: scalene medius muscle

Figure 1: (a) Technique of ISB, 18G Tuohy needle near brachial plexus under high-frequency ultrasound probe and in-plane approach. (b) Catheter is clearly visualised near the lower end of brachial plexus;  (c) Contrast spread within the brachial plexus sheath and cervical epidural space (arrows). SA: scalene anterior muscle; SM: scalene medius muscle; BP: brachial plexus; SCM: sternocleidomastoid muscle; SA: scalene anterior muscle; SM: scalene medius muscle