Author + information
Atherosclerosis is associated with the hemodynamic factors emerged from the geometry of vessels outside of the traditional risk factors. When compared C and S (sigma) shape of right coronary artery (RCA), C shape was found to be more associated with coronary artery disease in previous studies. However, in patients admitted with acute myocardial infarction(AMI) from the RCA, the effect of these two geometric shape of RCA did not evaluated on TIMI frame count (TFC), distribution and length of the lesion. The aim this study was to compare intracoronary flow rates, localization and severity of lesion between C and S shapes of RCA on coronary angiography images by evaluation of angiographic images of primary percutaneous interventions in AMI which is caused by RCA in our center.
The angiographic images of 163 of patients were evaluated who performed primary percutaneous intervention due to AMI from RCA. Patients were divided into two groups according to the geometric shape of RCA. Clinical and angiographic parameters were compared in terms of C and S shapes of RCA.
There was no statistical difference between two groups in terms of demographic characteristicts even the age was higher in C-shape (Table 1). In C-shape patients, the frequency of proximal and mid region lesions were found more than distal lesions (p=0.014) but there was no differences in S-shape patients. TFC in patient group with S-shape were significantly higher than patient group with C shape when both groups were compared in terms of TFCs. The two groups lesion regions were compared each other and there were no difference between vascular diameters.
The frequency of lesion was higher in the proximal and mid sections of C shape RCA. TFCs were significantly higher in patients with S-shape group than patients C shape group when they were compared in terms of TFCs.
|C-shape (n=124)||S-shape (n=39)||P count|
|Diabetesmellitus||31(% 25)||12(% 30,8)||0,476|
|Hyperlipidemia||29(% 23,4)||8(% 20,5)||0,709|
|Smoking||34(% 27,4)||12(% 30,8)||0,685|