Role of demographic factors and vascular anatomy in successful trans-radial Tiger catheterization in coronary angiography

Objective The use of a single catheter in the trans-radial angiography approach (TRA) is associated with fewer complications. However, there are some discrepancies regarding the effectiveness of these catheters. Catheter selection is crucial in reducing the risk of trauma to the coronary arteries in angiography, so the main objective of the present study was to investigate the success rate of the Tiger single catheter in the right and left coronary angiography in the TRA, in addition to characterizing the role of demographic factors, underlying conditions and vascular anatomy in its success. Methods This observational study was conducted on 127 patients with suspected CAD. Demographic data and risk factors were recorded in a checklist. The root diameter of the aortic artery at different sections ejection fraction was measured by transthoracic echocardiography before performing TRA. Coronary anomaly, tortuosity of the radial artery pathway to the aorta, as well as coronary artery take-off and procedure indication, were also recorded during the TRA. Results In this study, 127 patients with a mean age of 59 ± 10.3 were enrolled. Sixty-seven patients (51.5%) were female, and 63 patients (48.5%) were male. Failure was reported only in 5 patients (3.85%). Age, gender, BMI, height, aortic diameter, coronary anomalies, tortuosity, hypertension, dyslipidemia, and smoking had not a significant relationship with successful Tiger catheterization (P > 0.05) but high coronary take-off had (P= 0.004). Conclusion In cases of high coronary take-off and coronary abnormality, a Tiger catheter can probably benefit the patient with a trans-radial approach.