Acute right coronary artery occlusion after radiofrequency catheter ablation of cavotricuspid isthmus: Vascular response assessed by optical frequency.

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Acute right coronary artery occlusion after radiofrequency catheter ablation of cavotricuspid isthmus: Vascular response assessed by optical frequency domain imaging Naohiro Funayama, MD, Takao Konishi, MD, Tadashi Yamamoto, MD, PhD, Seiichiro Sakurai, MD HeartRhythm Case Reports Volume 3, Issue 10, Pages 496-498 (October 2017) DOI: 10.1016/j.hrcr.2017.07.013 Copyright © 2017 Heart Rhythm Society Terms and Conditions

Figure 1 Coronary angiography (A, B, C) and optical frequency domain imaging (D, E, F). A: Initial angiography. B: An immediate coronary angiography showed an occlusion (white arrow) of the posterolateral branch. C: Final angiography. D: Proximal site maintained a normal “three-layer” structure. E: Optical frequency domain imaging revealed thickening of the intima and thrombus at the target lesion. F: Distal site had fibrous and fibrocalcific plaques. HeartRhythm Case Reports 2017 3, 496-498DOI: (10.1016/j.hrcr.2017.07.013) Copyright © 2017 Heart Rhythm Society Terms and Conditions

Figure 2 A: Computed tomography (CT) image. PDA = posterior descending artery; PLA = posterolateral artery; RA = right atrium; RV = right ventricle. B: Enlarged view. C: Corresponding view of 3-dimensional electroanatomic mapping system and CT. The dots present the radiofrequency applications. Right anterior oblique (RAO) view and left anterior oblique (LAO) view. RCA = right coronary artery. HeartRhythm Case Reports 2017 3, 496-498DOI: (10.1016/j.hrcr.2017.07.013) Copyright © 2017 Heart Rhythm Society Terms and Conditions