HUMAN CORONARY ARTERIES- A STUDY BASED ON GROSS ANATOMY AND CORONARY CAST
Journal Title: Journal of Evidence Based Medicine and Healthcare - Year 2018, Vol 5, Issue 6
Abstract
BACKGROUND Present study is an attempt to throw light upon the coronary arterial pattern, variations in arterial distribution and extent of intercoronary anastomosis and arterial preponderance in different age groups. MATERIALS AND METHODS Total of 115 hearts were made use for this study. Ninety hearts were dissected for the gross anatomical study of coronary arteries and 25 hearts including three fetal hearts were used for the coronary cast study. The right and left coronary arteries were traced from aortic sinus along the atrioventricular groove to the area of its termination. The atrial ventricular and septal branches were traced and looked for anastomosis. Coronary casts were prepared by injecting coloured liquid latex through the coronary ostia and the branching pattern and anastomosis were studied. The coronary arterial pattern, extent of distribution of its branches, arterial preponderance and variations were observed. RESULTS It was found that 73 % cases of SA nodal branch arise from right coronary artery and 27 % from circumflex branch of left coronary artery. SA node has dual blood supply from both coronary arteries in 4% cases. Right coronary preponderance was observed in 83% of cases and left coronary preponderance in 11 % cases, and balanced supply in 6% cases. Coronary cast was helpful to understand the branching pattern of vessels, and the anastomosis of small capillaries. It was also seen that all 11 % of left preponderance were seen in male hearts and all of the 31 female hearts dissected were right preponderant. CONCLUSION Coronary arteries are called end arteries functionally. Right coronary artery originates from anterior aortic sinus in all cases except one which takes origin from posterior left aortic sinus along with left coronary artery. Right coronary preponderance is observed in 83% cases. Left coronary artery branching pattern shows variability. Left coronary preponderance was observed in 11% and all cases are male. Coronary cast demonstrates intercoronary anastomosis clearly at capillary levels.
Authors and Affiliations
Vijayamma K. N, Ushavathy P
Keywords
Related Articles
- EP ID EP454085
- DOI 10.18410/jebmh/2018/101
- Views 92
- Downloads 0
ADULT ONSET STILL’S DISEASE-A DIAGNOSIS OF EXCLUSION
PRESENTATION OF CASE A 27-year-old lady, married came with chief complaints of fever since 1-month duration and pain in both knee joints, since 20 days. Fever was high grade, 2-3 spikes /day, not associated with chills o...
ATTENUATION OF INTRAOCULAR PRESSURE RISE BY SUCCINYLCHOLINE IN RAPID SEQUENCE INDUCTION BY DEXMEDETOMIDINE- AN OBSERVATIONAL STUDY
BACKGROUND Patients who require endotracheal intubation in the emergency department often require a rapid sequence induction technique to protect against gastric contents aspiration and to facilitate intubation. Rapid Se...
CASE SERIES: REMODELLED AUTOSSICLE VERSUS TEFLON PORP
BACKGROUND A widely accepted technique used for eroded incudostapedial joint or partially eroded incus is tympanoplasty with remodelled incus or malleus. An alternate method used for grafting is using PORP with cymba con...
OUTCOME OF GARTLAND TYPE – II SUPRACONDYLAR FRACTURES OF HUMERUS TREATED BY CONSERVATIVE METHOD
The current literatures recommend operative method (closed reduction and pinning) for type II supracondylar fractures of humerus. But some surgeons still prefer conservative method for type II supracondylar fractures of...
A RARE CASE OF IPSILATERAL HIP AND KNEE DISLOCATION
High velocity road traffic accidents leads to complicated lower limb injuries. Such injuries demand highly experienced surgeon and are associated with high morbidity and mortality. Hip or knee dislocations are two differ...