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Effects of adjunctive balloon angioplasty after intravascular ultrasound-guided optimal directional coronary atherectomy

The result of adjunctive balloon angioplasty after coronary atherectomy study (ABACAS)

Takahiko Suzuki, MD^*, Hiroaki Hosokawa, MD, Osamu Katoh, MD, Tamotsu Fujita, MD, Katsumi Ueno, MD^||, Shinichi Takase, MD^¶, Kenshi Fujii, MD^#, Hideo Tamai, MD^**, Tadanori Aizawa, MD, Tetsu Yamaguchi, MD, PhD, Hiroyuki Kurogane, MD, Mikihiro Kijima, MD^||||, Hirotaka Oda, MD^¶¶, Etsuo Tsuchikane, MD^##, Tomoaki Hinohara, MD, FACC^***, Peter J. Fitzgerald, MD, PhD, FACC for the ABACAS Investigators

^* Division of Cardiology, Toyohashi Heart Center, Aichi, Japan
National Toyohashi Higashi Hospital, Aichi, Japan
Kyoto Katsura Hospital, Kyoto, Japan
Okamura Kinen Hospital, Shizuoka, Japan
^|| Gifu Municipal Hospital, Gifu, Japan
^¶ Takase Clinic, Gumma, Japan
^# Sakurabashi Watanabe Hospital, Osaka, Japan
^** Shiga Medical Center, Shiga, Japan
Cardiovascular Institute, Tokyo, Japan
Toho University Ohashi Hospital, Tokyo, Japan
Himeji Cardiovascular Center, Hyogo, Japan
^|||| Hoshi Sogo Hospital, Fukushima, Japan
^¶¶ Niigata City General Hospital, Niigata, Japan
^## The Center for Adult Diseases Osaka, Osaka, Japan;
^*** Sequoia Hospital, Redwood City, California, USA
Stanford University, Stanford, California; USA

View larger version (25K): [in a new window]   Figure 1 Patient treatment algorithm. (CAG = coronary angiogram; DCA = directional coronary atherectomy).

View larger version (48K): [in a new window]   Figure 2 An example of the cases. IVUS-guided DCA ± adjunctive PTCA (IVUS images of pre-DCA, post-DCA-1, post-DCA-2, post-PTCA).

View larger version (20K): [in a new window]   Figure 3 Cumulative distribution of MLD by QCA. Preintervention, postintervention and six-month follow-up.

View larger version (12K): [in a new window]   Figure 4 Relationship between post-DCA residual stenosis and restenosis rate.