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Intravascular ultrasound‐guided balloon angioplasty for treatment of in‐stent restenosis
Author(s) -
Sakamoto Tsunemori,
Kawarabayashi Takahiko,
Taguchi Haruyuki,
Tanaka Atsushi,
Nishida Yukio,
Shimada Kenei,
Yoshikawa Junichi
Publication year - 1999
Publication title -
catheterization and cardiovascular interventions
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 116
eISSN - 1522-726X
pISSN - 1522-1946
DOI - 10.1002/(sici)1522-726x(199907)47:3<298::aid-ccd9>3.0.co;2-8
Subject(s) - medicine , intravascular ultrasound , angioplasty , restenosis , balloon , stent , radiology , cutting balloon , surgery
We investigated the usefulness of intravascular ultrasound (IVUS)‐guided balloon angioplasty for in‐stent restenosis in 37 lesions of 34 consecutive patients. We divided these patients into two groups: a group in which the balloon size was determined by quantitative coronary angiography (QCA group; 17 patients, 19 lesions) and a group in which the balloon size was determined by IVUS (IVUS group; 17 patients, 18 lesions). We compared short‐term and 6‐month outcomes for these groups. In the IVUS group, we used a balloon of a size equal to 95% of the media‐to‐media diameter at the distal to the stent, as determined by IVUS. No significant differences were observed in patient or lesion characteristics between the two groups. The clinical success rate was 100% in both groups, and no clinical events were observed in either of the groups. The balloon/artery ratio was larger in the IVUS group than in the QCA group (1.33 ± 0.35 vs. 1.16 ± 0.13, P < 0.05), and the recurrent restenosis rate was lower (17% vs. 53%, P < 0.05). These results suggest that repeat balloon angioplasty using a balloon size determined by IVUS is useful for in‐stent restenosis. Cathet. Cardiovasc. Intervent. 47:298–303, 1999. © 1999 Wiley‐Liss, Inc.