Objective: To assess the current status of catheter intervention in Kawasak
i disease and to evaluate its efficacy and outcome.
Study design: A questionnaire was sent to 55 major institutions in Japan.
Results: A total of 58 procedures in 57 patients were reported. The median
age at the time of intervention was 12.1 years. The procedures included per
cutaneous transluminal coronary angioplasty (PTCA; n = 34), percutaneous tr
ansluminal coronary rotational ablation (PTCRA; n = 13), directional corona
ry atherectomy (DCA; n = 4), and stent implantation (n = 7). The immediate
success rate was 74% for PTCA, 100% for PTCRA, 100% for DCA, and 86% for st
ents. The interval from the onset of disease to intervention in successful
PTCA (n = 25) was significantly shorter than that in unsuccessful PTCA (n =
9). Restenosis after PTCA was observed in 24%. Development of new coronary
aneurysms was reported in 3 patients for PTCA, 2 for PTCRA, 3 for DCA, and
1 for stents. Except for the DCA, all new aneurysms were associated with t
he use of high-pressure balloon inflation. Two deaths were reported as acut
Conclusions: Catheter intervention is a promising therapeutic strategy in t
he management of coronary stenosis caused by Kawasaki disease. Care should
be paid to avoid acute coronary arterial complications and the development
of new coronary aneurysms.