Abstract :
Objectives: The coronary angiography can be performed successfully by having knowledge on the location and level of coronary ostia. The morbidity and mortality of invasive procedures may be reduced by studying the topographical relations of coronary orifices. The present study is undertaken
1. To observe the relations of coronary ostia to Sinotubular junction.
2. To measure the distance of coronary ostia from commissures of aortic leaflets.
3. To measure the distance between coronary ostia and bottom of corresponding aortic sinus.
Materials and Method: The present study was done on 49 formalin fixed human cadaveric hearts and the position of coronary ostia with respect to sinotubular junction and commissure was noted. The distance between coronary ostia and the bottom of the aortic sinus was measured.
Results: It was observed that the incidence of various locations of coronary ostia in relation to STJ was in 44 (89.8%) specimens right coronary ostium was below STJ and in 26 (53.1%) specimens left coronary ostium was at STJ which was statistically significant (p-value
Keyword :
Aortic leaflets, Aortic sinus of Valsalva, Coronary arteries, Coronary ostia, Sinotubular junction