Document Detail

Incidence of unintentional intraneural injection and postoperative neurological complications with ultrasound-guided interscalene and supraclavicular nerve blocks*
MedLine Citation:
PMID:  21320084     Owner:  NLM     Status:  Publisher    
It is proposed that ultrasound guidance decreases the risk of intraneural injection and associated postoperative neurological complications. However, the incidence of unintentional intraneural injection with ultrasound is unknown. Two hundred and fifty-seven patients were enrolled in a prospective, single-blind observational study. All patients underwent a pre-operative neurological examination before ambulatory shoulder arthroscopy with sedation and ultrasound-guided interscalene or supraclavicular block. Patients were followed up at 1 week and at 4-6 weeks postoperatively. Two blinded anaesthesiologists viewed the same video of the ultrasound image during the block offline to determine intraneural trespass. Intraneural injection occurred in 42 patients (17%; 95% CI 12-22%). No patient suffered from postoperative neurological complications (0%; 95% CI 0-1.6%) at follow-up.
S S Liu; J T Yadeau; P M Shaw; S Wilfred; T Shetty; M Gordon
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Publication Detail:
Journal Detail:
Title:  Anaesthesia     Volume:  66     ISSN:  1365-2044     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-2-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370524     Medline TA:  Anaesthesia     Country:  -    
Other Details:
Languages:  ENG     Pagination:  168-174     Citation Subset:  -    
Copyright Information:
© 2011 The Authors. Anaesthesia © 2011 The Association of Anaesthetists of Great Britain and Ireland.
 Attending Anesthesiologist, Hospital for Special Surgery, Clinical Professor of Anesthesiology, Weill Cornell Medical College, New York, USA  Assistant Attending Anesthesiologist, Hospital for Special Surgery, Clinical Assistant Professor of Anesthesiology, Weill Cornell Medical College, New York, USA  Assistant Research Coordinator  Research Assistant, Department of Anesthesiology, Hospital for Special Surgery, New York, USA  Assistant Attending Neurologist, Hospital for Special Surgery, Assistant Professor of Neurology, Weill Cornell Medical College, New York, USA  Attending Anesthesiologist, Hospital for Special Surgery, Assistant Clinical Professor in Anesthesiology, Weill Cornell Medical College, New York, USA.
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