Comparison of perineural brachial plexus block and proximal perivascular block in ultrasound-guided axillary brachial plexus block

The traditional axillary perineural (PN) approach for brachial plexus block is frequently used, but separate musculocutaneous nerve (MCN) required and increases procedure time patient discomfort. We hypothesized that a using the proximal perivascular (PPV) method at MCN branching from lateral cord would obviate need an while ensuring quality similar to of PN method. For group (n = 25), needle was placed on each nerve, 8 mL local anesthetic infiltrated around radial, ulnar, median nerves (total: 24 mL). then injected 6 MCN. In PPV we moved probe proximally until junction in cord. tips were 12-o’clock 6-o’clock positions artery, 15 30 time, number passes, procedure-related complications, sensory/motor level, onset recorded. had significantly shorter than (3.9 ± 1.0 vs. 7.5 3.3 min, p < 0.001). Furthermore, fewer passes. showed faster (6.4 2.7 10.4 2.9 induction did not show significant intergroup difference. Sensory blockade occurred 5 10 min. There no differences motor paralysis. under ultrasound guidance as effective block. Therefore, simple, safe regional technique upper limb surgery.