Document Detail

A randomized comparison between ultrasound-guided and landmark-based superficial cervical plexus block.
MedLine Citation:
PMID:  20975470     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: This prospective, randomized, observer-blinded study compared ultrasound guidance and the conventional landmark-based technique for superficial cervical plexus blockade.
METHODS: Forty patients were randomly allocated to receive a block of the superficial cervical plexus using ultrasound guidance (n = 20) or the traditional landmark-based technique (n = 20). The main outcome, success, was defined as the absence of cold sensation for all 4 branches of the superficial cervical plexus at 15 mins. A blinded observer recorded success rate, onset time, block-related pain scores, and the incidence of complications. Performance time and the number of needle passes were also recorded during the performance of the block. Total anesthesia-related time was defined as the sum of performance and onset times.
RESULTS: Success rate (80%-85%) was similar between the 2 groups. Performance time was slightly longer with ultrasonography (119 versus 61 sec, P < 0.001); however, no differences in onset and total anesthesia-related times were found. There were also no differences in the number of passes and procedural discomfort.
CONCLUSIONS: Ultrasound guidance does not increase the success rate of superficial cervical plexus block compared with a landmark-based technique. Additional confirmatory trials are required.
De Q H Tran; Shubada Dugani; Roderick J Finlayson
Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Regional anesthesia and pain medicine     Volume:  35     ISSN:  1532-8651     ISO Abbreviation:  Reg Anesth Pain Med     Publication Date:    2010 Nov-Dec
Date Detail:
Created Date:  2010-10-26     Completed Date:  2011-02-03     Revised Date:  2012-01-31    
Medline Journal Info:
Nlm Unique ID:  9804508     Medline TA:  Reg Anesth Pain Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  539-43     Citation Subset:  IM    
Montreal General Hospital, Department of Anesthesia, McGill University, Montreal, Quebec, Canada.
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MeSH Terms
Cervical Plexus*
Cold Temperature
Middle Aged
Nerve Block / adverse effects,  methods*
Prospective Studies
Sensory Thresholds
Time Factors
Ultrasonography, Interventional*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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