engleski

Anatomical variations in the pattern of the coronary sinus tributaries

The human coronary sinus is a major component of the cardiac venous system that serves as an anatomic landmark as well as a conduit for many diagnostic and therapeutic procedures in cardiology. The objective of this study is to explore the anatomical variations of the coronary sinus and its tributaries. Morphological features of the veins have been studied on the 20 adult human cadaveric hearts, both sexes, 25 to 70 years of age. The hearts had been fixed in formalin solution and studied by manual dissection and the ink-gelatine methods. The length of the human sinus varied from 20 to 44 mm (average 29, 6±4.6 mm). The diameter of the coronary sinus at its opening into right atrium was 7 to 13 mm (average 8.5±1.5 mm). Two most frequent pattern of venous drainage into the coronary sinus are: the great cardiac vein, the middle cardiac vein, posterior veins of ventricle and oblique vein of left atrium in 40% specimens and the great cardiac vein, the middle cardiac vein, the minor posterior veins of ventricle, the posterior vein of left ventricle and oblique vein of left atrium in 30% specimens. The small cardiac vein was present only in 5% specimens. Myocardial bridges of the cardiac veins were found in 3 specimens over great cardiac vein during its course in anterior interventicular sulcus. The knowledge of cardiac veins variation will contribute to the better understanding and interventions in heart vascular disease.

cardiac veins; coronary sinus; tributaries

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