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NJBMS - Volume 3, Issue 1, July - September 2012

Pages: 10-13
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PREVALENCE OF 'DOUBLE BRACHIAL ARTERIES': CADAVERIC STUDY IN TWO DISTANT ZONES OF INDIA

Author: BANERJEE ARINDOM, ROY HIRONMOY, TAPADAR ARUNABHA, I. ANIL KUMAR, ANIRBAN DASGUPTA

Category: Anatomy

Abstract:

Rationale: Brachial artery duplication is not very uncommon as described in literature, though its prevalence data is lacking especially in Indian population due to insufficient information from cadaveric study. Objective: A cadaveric study was undertaken with 27 cadavers spanning over three years time carried out simultaneously at two distant zones of India with a rare possibility of mixing of population; one at a medical college in Andhra Pradesh (East Godavari District) and the other, at a medical college in West Bengal (Darjeeling District). Incidences of double brachial arteries were documented. Result: Incidence of double brachial arteries was noted to be more preponderant in the population covered in southern India (almost one-third), in comparison to that in eastern India (almost one-tenth). The anomaly was found to be more on the right side (almost two-third of the variant cases) than on the left, which was similar in both the regions. Grossly, two levels of bifurcation were noted, one in the axilla and the other in the arm. The former was found to be more common than the later; but the pattern differed in the two zones. Conclusion: An anomalous binary brachial distribution is not only important from anatomists' point of view, but also for the surgeons. Since, such an extensive study carried out in two different zones of India is quite rare, documentation of the study is obviously warranted for emphasis on the anomaly.

Keywords: double brachial artery, brachial artery