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KMID : 0368120180480040277
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Korean Circulation Journal
2018 Volume.48 No. 4 p.277 ~ p.286
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Interventional Management of “Balloon-Uncrossable” Coronary Chronic Total Occlusion: Is There Any Way Out?
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Dash Debabrata
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Abstract
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It has been estimated that coronary chronic total occlusion (CTO) is encountered in 15 to 20% patients referred for coronary angiography (CAG). The success of percutaneous coronary intervention (PCI) of CTO can be attributed to the vast array of hardware that has now become available and also to the vastly enhanced operator expertise. It is however realistic to state that despite the tremendous increase in the rate of success, there then comes a subset of CTO where PCI attempts fail. The reason for such failures given that other variables remain constant is the inability to cross the CTO lesion. This can be due to a failure to cross the lesion with a guide wire (despite guide wire escalation). The second cause of failure is the inability to cross the lesion with a balloon (balloon-uncrossable [BU] CTO). This can occur despite the successful placement of a guidewire in the distal true lumen. The BU lesions contribute 2% to 10% of CTO PCI failure cases. The author attempts to present a creative solution to assist crossing such lesions.
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KEYWORD
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Chronic total occlusion, Percutaneous coronary intervention, Balloon-uncrossable
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