期刊论文详细信息
Medical Journal of Babylon
Chronic Total Occlusion Anatomy and Characteristics of Coronary Collaterals and Angiographic Features Predicting the Success of Chronic Total Occlusion Intervention
article
Shiekh Rayees1  Aashaq Hussain Khandy1  Tauseef Nabi2  Sajaad Manzoor1 
[1] Department of Cardiology;Department of Endocrinology, All is Well Multi-Speciality Hospital
关键词: Chronic total occlusion;    coronary calcification;    coronary collaterals;    coronary intervention;    right coronary artery;   
DOI  :  10.4103/MJBL.MJBL_99_21
学科分类:社会科学、人文和艺术(综合)
来源: Wolters Kluwer Medknow Publications
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【 摘 要 】

Background and Objective: Angiographic assessment of chronic total occlusion (CTO) anatomy and collateral characteristics of coronary arteries are necessary for CTO intervention. Materials and Methods: This was a hospital-based observational study of 100 coronary angiograms (CAG) with CTOs. CTO anatomy and collateral characteristics of coronary arteries were studied for predicting anterograde and retrograde CTO intervention. Results: Right coronary artery (RCA) CTO was the most common (62%), followed by left anterior descending (LAD). More than two-thirds of RCA and LAD CTO lesions were >20 mm and half were in mid-segment. Left circumflex artery (LCX) and RCA lesions were more frequently calcified. LAD CTOs often had blunt stump; LCX CTOs frequently had bending >45°. The mean J-CTO score was lowest in RCA CTOs (2.0 ± 1.19). There were 10 different types of collaterals in RCA CTOs, 8 in LAD CTOs, and only 4 in LCX CTOs. The most common RCA CTOs collateral was LAD septal to the right posterior descending artery (RPDA) (69.4%) and in LAD CTOs, the most common was septal collaterals from the RPDA to LAD (40.9%). RCA CTOs had a higher percentage of septal collaterals, less tortuosity, and favorable entry and exit angle when compared with other two arteries. Conclusion: RCA CTOs were the most common. Angiographic features in CTO lesions vary among three major coronary arteries. The RCA CTOs had lesser mean J-CTO score, more number of septal collaterals, less tortuous collaterals, and favorable entry and exit angle. RCA CTOs were better accessible for anterograde and retrograde intervention.

【 授权许可】

CC BY-NC-SA   

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