title: A novel intravascular ultrasound-guided percutaneous coronary angioplasty technique via the retrograde approach for chronic total occlusion.
abstract: The retrograde approach via native channels, mainly septal collaterals, has now become routine. However even after retrograde advancement of a catheter through a collateral channel, it is sometimes difficult to guide the catheter from a false lumen into the true lumen. We experienced 3 patients in whom the site for retrograde guidewire re-entry site from the chronic total occlusion was unclear, and intravascular ultrasound (IVUS) was useful for identifying the re-entry site. Here we report on this new technique, in which IVUS guides the retrograde guidewire to its re-entry site.
authors.affiliation: Division of Cardiology, Saiseikai Yokohama City Eastern Hospital, 3-6-1 Shimosueyoshi, Tsurumi-ku, Yokohama, Kanagawa, 230-8765, Japan, t-mura@tj8.so-net.ne.jp.
authors.forename: Toshiya
authors.initials: T
authors.lastname: Muramatsu
authors.forename: Reiko
authors.initials: R
authors.lastname: Tsukahara
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Ito