case_images: PMC6191555_01
case_images: (A) Coronary angiogram of the completely occluded right coronary artery. (B) Coronary angiogram showing Rentrop grade II collateral flow to the right coronary artery from the left ascending coronary artery
case_images: NCI-5-160-g001.jpg
case_images: PMC6191555_01_NCI-5-160-g001.jpg
case_images: F1
case_images: Angiogram revealed that the coronary stent in mid-RCA was completely occluded (Fig. 1A) with Rentrop grade II collaterals from the left anterior descending artery (Fig. 1B).
case_images: (A) Coronary angiogram of the right coronary artery flow before cutting balloon dilatation. (B) Coronary angiogram of the right coronary artery flow after cutting balloon dilatation.
case_images: NCI-5-160-g002.jpg
case_images: PMC6191555_01_NCI-5-160-g002.jpg
case_images: F2
case_images: Despite several predilations with 1.5-x20-mm, 2.5-x20-mm, and 3.0-x20-mm balloons, a satisfactory angiographic result was not observed (Fig. 2A). To achieve better results, the 3.0-x15-mm cutting balloon, which resulted in TIMI II flow (Fig. 2B).
case_images: Coronary angiogram of the right coronary artery after two overriding coronary stents.
case_images: NCI-5-160-g003.jpg
case_images: PMC6191555_01_NCI-5-160-g003.jpg
case_images: F3
case_images: After dilation at 20 atm of pressure via a 3-x20-mm NC balloon, the result was satisfactory (Fig. 3).