Document Detail

Persistent median artery (palmar type) and median nerve block in the forearm: observational study of prevalence.
MedLine Citation:
PMID:  22878521     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: We sought to define the crude prevalence rate of the persistent median artery (PMA) (palmar type). Although there is no reported case in the anesthetic literature, a few sporadic case reports and series reported in anatomical and orthopedic journals describe an incidence of between 1.5% and 27.1%.
METHODS: We conducted a prospective observational study to define the crude prevalence of the PMA (palmar type) by scanning 100 forearms of 50 volunteers using a high-frequency ultrasound probe.
RESULTS: We found 19 PMAs in 13 individuals, thus giving a prevalence of 19%. Other arterial variants were also identified within this population.
CONCLUSIONS: Anatomical variations of the blood supply to the forearm and hand can be identified with available high-frequency ultrasound equipment. Arterial variants immediately adjacent to the median nerve may occur in approximately 1 in 5 limbs. Practitioners should actively seek their presence or absence.
James A Stimpson; Ashwani Gupta
Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Regional anesthesia and pain medicine     Volume:  37     ISSN:  1532-8651     ISO Abbreviation:  Reg Anesth Pain Med     Publication Date:    2012 Sep-Oct
Date Detail:
Created Date:  2012-08-23     Completed Date:  2013-06-11     Revised Date:  2013-10-08    
Medline Journal Info:
Nlm Unique ID:  9804508     Medline TA:  Reg Anesth Pain Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  558-60     Citation Subset:  IM    
Department of Anaesthetics, Queen Elizabeth Hospital NHS Foundation Trust, Norfolk, UK.
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MeSH Terms
Arteries / abnormalities*,  ultrasonography*
Forearm / blood supply*,  innervation,  ultrasonography*
Median Nerve / ultrasonography*
Nerve Block / methods*
Ultrasonography, Interventional / methods
Comment In:
Reg Anesth Pain Med. 2013 Sep-Oct;38(5):462-3   [PMID:  23970053 ]

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

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