open access

Vol 67, No 2 (2008)
ORIGINAL ARTICLES
Published online: 2008-03-06
Submitted: 2012-02-06
Get Citation

Morphological expression of the left coronary artery: a direct anatomical study

L.E. Ballesteros, L.M. Ramirez
Folia Morphol 2008;67(2):135-142.

open access

Vol 67, No 2 (2008)
ORIGINAL ARTICLES
Published online: 2008-03-06
Submitted: 2012-02-06

Abstract

The left coronary artery presents wide variability in its morphological expression. The purpose of this work was to determine the variations in the left coronary artery and those of its branches in heart samples taken from a group of 154 Colombian mixed-race people. Cadaveric coronary arteries were injected with synthetic resins. Left coronary artery trunks presented 6.48 ± 2.57 mm lengths. Left coronary arteries were bifurcated in 80 hearts (52%), trifurcated in 65 hearts (42.2%) and tetrafurcated in 9 hearts (5.8%). A short circumflex branch was observed in 143 hearts (92.8%), finalising as a left marginal branch in 39 of them (25.3%). The inferior third of the posterior interventricular sulcus was the most frequently occurring segment in anterior interventricular branch finalisation (63.6%). The calibre of the left coronary artery trunk was 3.58 ± ± 0.59 mm, that of the anterior interventricular branch 2.94 ± 0.5 mm and that of the circumflex branch 2.71 ± 0.54 mm. Of the total sample 86 myocardial bridges were observed with 61 cases (70.9%) in the anterior interventricular branch, distributed amongst all segments (proximal, intermediate and distal). Average myocardial bridge length was 19.4 ± 10.7 mm, and no gender differences were observed (p = 0.20). The most frequently occurring location of the myocardial bridges, on the anterior interventricular branch (proximal and intermediate), agreed with previous studies. Left coronary artery trunk length and calibre and that of its branches were considerably smaller than those reported in other populations.
(Folia Morphol 2008; 67: 135–142)

Abstract

The left coronary artery presents wide variability in its morphological expression. The purpose of this work was to determine the variations in the left coronary artery and those of its branches in heart samples taken from a group of 154 Colombian mixed-race people. Cadaveric coronary arteries were injected with synthetic resins. Left coronary artery trunks presented 6.48 ± 2.57 mm lengths. Left coronary arteries were bifurcated in 80 hearts (52%), trifurcated in 65 hearts (42.2%) and tetrafurcated in 9 hearts (5.8%). A short circumflex branch was observed in 143 hearts (92.8%), finalising as a left marginal branch in 39 of them (25.3%). The inferior third of the posterior interventricular sulcus was the most frequently occurring segment in anterior interventricular branch finalisation (63.6%). The calibre of the left coronary artery trunk was 3.58 ± ± 0.59 mm, that of the anterior interventricular branch 2.94 ± 0.5 mm and that of the circumflex branch 2.71 ± 0.54 mm. Of the total sample 86 myocardial bridges were observed with 61 cases (70.9%) in the anterior interventricular branch, distributed amongst all segments (proximal, intermediate and distal). Average myocardial bridge length was 19.4 ± 10.7 mm, and no gender differences were observed (p = 0.20). The most frequently occurring location of the myocardial bridges, on the anterior interventricular branch (proximal and intermediate), agreed with previous studies. Left coronary artery trunk length and calibre and that of its branches were considerably smaller than those reported in other populations.
(Folia Morphol 2008; 67: 135–142)
Get Citation

Keywords

left coronary artery; anterior interventricular branch; circumflex branch; anterosuperior branch; lateral branch; myocardial bridge

About this article
Title

Morphological expression of the left coronary artery: a direct anatomical study

Journal

Folia Morphologica

Issue

Vol 67, No 2 (2008)

Pages

135-142

Published online

2008-03-06

Bibliographic record

Folia Morphol 2008;67(2):135-142.

Keywords

left coronary artery
anterior interventricular branch
circumflex branch
anterosuperior branch
lateral branch
myocardial bridge

Authors

L.E. Ballesteros
L.M. Ramirez

Important: This website uses cookies. More >>

The cookies allow us to identify your computer and find out details about your last visit. They remembering whether you've visited the site before, so that you remain logged in - or to help us work out how many new website visitors we get each month. Most internet browsers accept cookies automatically, but you can change the settings of your browser to erase cookies or prevent automatic acceptance if you prefer.

By  "Via Medica sp. z o.o." sp.k., Świętokrzyska 73, 80–180 Gdańsk, Poland

tel.:+48 58 320 94 94, faks:+48 58 320 94 60, e-mail:  viamedica@viamedica.pl