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Intravascular Ultrasound Comparison of the Retrograde Versus Antegrade Approach to Percutaneous Intervention for Chronic Total Coronary Occlusions by Kenichi Tsujita; Akiko Maehara; Gary S. Mintz; Takashi Kubo; Hiroshi Doi; Alexandra J. Lansky; Gregg W. Stone; Jeffrey W. Moses; Martin B. Leon; Masahiko Ochiai is a Medicine article available to read on EtoBox.
What is Intravascular Ultrasound Comparison of the Retrograde Versus Antegrade Approach to Percutaneous Intervention for Chronic Total Coronary Occlusions about?
## Objectives: We sought to evaluate the results of the antegrade versus retrograde chronic total occlusion (cto) technique with intravascular ultrasound (ivus) imaging. ## Background: The most common failure mode of cto interventions remains the inability to successfully cross the occlusion with a guidewire. recently, the retrograde approach through collateral channels has been introduced to cross complex ctos. ## Methods: Between october 2002 and april 2008, ivus was performed in 48 de novo cto lesions after guidewire crossing +/- pre-dilation with a 1.5- to 2.0-mm balloon. twenty-three lesions were treated via the antegrade approach (ante), and 25 lesions were treated via the retrograde approach (retro). ## Results: Right coronary artery (rca) ctos were treated more frequently via the retro technique. although the cto length was much longer in the retro group (45 +/- 26 mm vs. 18 +/- 9 mm, p < 0.0001), at the end of the procedure thrombolysis in myocardial infarction flow grade 3 was obtained in all patients. there were no significant differences between the 2 groups in minimum stent area and stent expansion. however, the incidence of the composite end point-subintimal wiring, a
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- Author
- Kenichi Tsujita; Akiko Maehara; Gary S. Mintz; Takashi Kubo; Hiroshi Doi; Alexandra J. Lansky; Gregg W. Stone; Jeffrey W. Moses; Martin B. Leon; Masahiko Ochiai
- Publisher
- American College of Cardiology; Elsevier ; Elsevier BV (ISSN 1936-8798)
- Published
- 2009
- Language
- EN
- Field
- Medicine (Health Sciences)