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Speed of onset of 'corner pocket supraclavicular' and infraclavicular ultrasound guided brachial plexus block: a randomised observer-blinded comparison.
Anaesthesia. 2009 Jul; 64(7):738-44.A

Abstract

This prospective, randomised, observer blinded study compared the onset time of brachial plexus block using 2% lidocaine 25-30 ml with adrenaline 5 microg.ml(-1) into the 'corner pocket' inferolateral/lateral to the subclavian artery (supraclavicular, n = 30) or to a triple point injection around the axillary artery (infraclavicular, n = 30). Mean (SD) onset time for complete pinprick sensory blockade assessed by a blinded observer in all four distal nerves was similar in both groups: supraclavicular = 22 (9.4) min, infraclavicular = 21 (7.1) min, p = 0.59. Complete sensory blockade in all four nerve territories at 30 min was achieved in 57% in group supraclavicular and 70% in group infraclavicular (p = 0.28). Painless surgery without the requirement for block supplementation was higher in group infraclavicular (28/30, 93%) compared with group supraclavicular (19/30, 67%; p = 0.01). Of the 11 failures in group supraclavicular, nine were due to incomplete ulnar nerve territory anaesthesia. These results do not support the concept of rapid onset successful supraclavicular block via a simple ultrasound-guided local anaesthetic injection inferolateral to the subclavian artery.

Authors+Show Affiliations

Auckland City Hospital, University of Auckland, Auckland, New Zealand. fredrickson@actrix.co.nzNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19624628

Citation

Fredrickson, M J., et al. "Speed of Onset of 'corner Pocket Supraclavicular' and Infraclavicular Ultrasound Guided Brachial Plexus Block: a Randomised Observer-blinded Comparison." Anaesthesia, vol. 64, no. 7, 2009, pp. 738-44.
Fredrickson MJ, Patel A, Young S, et al. Speed of onset of 'corner pocket supraclavicular' and infraclavicular ultrasound guided brachial plexus block: a randomised observer-blinded comparison. Anaesthesia. 2009;64(7):738-44.
Fredrickson, M. J., Patel, A., Young, S., & Chinchanwala, S. (2009). Speed of onset of 'corner pocket supraclavicular' and infraclavicular ultrasound guided brachial plexus block: a randomised observer-blinded comparison. Anaesthesia, 64(7), 738-44. https://doi.org/10.1111/j.1365-2044.2009.05918.x
Fredrickson MJ, et al. Speed of Onset of 'corner Pocket Supraclavicular' and Infraclavicular Ultrasound Guided Brachial Plexus Block: a Randomised Observer-blinded Comparison. Anaesthesia. 2009;64(7):738-44. PubMed PMID: 19624628.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Speed of onset of 'corner pocket supraclavicular' and infraclavicular ultrasound guided brachial plexus block: a randomised observer-blinded comparison. AU - Fredrickson,M J, AU - Patel,A, AU - Young,S, AU - Chinchanwala,S, PY - 2009/7/24/entrez PY - 2009/7/25/pubmed PY - 2009/8/14/medline SP - 738 EP - 44 JF - Anaesthesia JO - Anaesthesia VL - 64 IS - 7 N2 - This prospective, randomised, observer blinded study compared the onset time of brachial plexus block using 2% lidocaine 25-30 ml with adrenaline 5 microg.ml(-1) into the 'corner pocket' inferolateral/lateral to the subclavian artery (supraclavicular, n = 30) or to a triple point injection around the axillary artery (infraclavicular, n = 30). Mean (SD) onset time for complete pinprick sensory blockade assessed by a blinded observer in all four distal nerves was similar in both groups: supraclavicular = 22 (9.4) min, infraclavicular = 21 (7.1) min, p = 0.59. Complete sensory blockade in all four nerve territories at 30 min was achieved in 57% in group supraclavicular and 70% in group infraclavicular (p = 0.28). Painless surgery without the requirement for block supplementation was higher in group infraclavicular (28/30, 93%) compared with group supraclavicular (19/30, 67%; p = 0.01). Of the 11 failures in group supraclavicular, nine were due to incomplete ulnar nerve territory anaesthesia. These results do not support the concept of rapid onset successful supraclavicular block via a simple ultrasound-guided local anaesthetic injection inferolateral to the subclavian artery. SN - 1365-2044 UR - https://www.unboundmedicine.com/medline/citation/19624628/Speed_of_onset_of_'corner_pocket_supraclavicular'_and_infraclavicular_ultrasound_guided_brachial_plexus_block:_a_randomised_observer_blinded_comparison_ L2 - https://doi.org/10.1111/j.1365-2044.2009.05918.x DB - PRIME DP - Unbound Medicine ER -