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International Journal of Morphology

On-line version ISSN 0717-9502


SOUSA-RODRIGUES, C. F.; ALCANTARA, F. S.  and  OLAVE, E. Topography and Biometry of the Coronary Venous System and its Tributaries. Int. J. Morphol. [online]. 2005, vol.23, n.2, pp.177-184. ISSN 0717-9502.

The coronary sinus (SC) is the main end of the cardiac veins, being the principal vein of the heart, draining all its blood, except that driven by the anterior cardiac veins and the minimum cardiac veins. Its location is well-defined in the posterior portion of the coronary sulcus between left atrium and ventricle. Its direct tributaries are the cardiac veins: magna (VCM), media (VCMe), parva (VCP), oblique of the left atrium (VOAE), posterior veins of the left ventricle (VPVE). The diameter in the middle of the distal third of the coronary sinus ranged from 4 to 10 mm (mean 6,34 mm); about its medium third, such value ranged from 7 to 14 mm (mean 9,13 mm) and in its proximal third, its diameter ranged from 5 to 16 mm (mean 9,28 mm). Its length ranged from 27 to 54 mm (mean 40,3 mm). In 26 hearts (100 % of the cases), the VCM continued into the SC in its left side; in 22 cases (84,6%), the VOAE flowed into its left third; in the remaining 4 (15,4%), it was absent; The SC received the left marginal vein in 3 hearts (11,5%). In 26 cases (100%), the VCMe discharged in the right extremity of the SC; in 16 hearts (61,5%), some VPVE drained into the left third of the SC, in these there was 1 VPVE in 10 (38,5%), 2 VPVE in 4 (15,3%) and 3 VPVE in 2 (7,7%). In 23 hearts (88,5%), some VPVE discharged in the middle third of the SC; in these, there was 1 VPVE in 15 cases (57,7%) and 2 VPVE in 8 (30,8%). In 21 hearts (80,8%), some VPVE drained into the right third of the SC, in these, there was 1 VPVE in 14 (53,9%), 2 VPVE in 5 (19,2%), 3 VPVE in 2 (7,7 %). One of the most polemic aspects in the study of the coronary sinus is its own biometry, contributing to this divergence the absence of a standart location to its beginning and a pattern on tributaries disposition

Keywords : Anatomy; Heart; Angiology.

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