Ontology type: schema:ScholarlyArticle
2017-04-11
AUTHORSMasahiro Yamawaki, Masaki Fujita, Shinya Sasaki, Masanori Tsurugida, Mamoru Nanasato, Motoharu Araki, Keisuke Hirano, Yoshiaki Ito, Reiko Tsukahara, Toshiya Muramatsu, On behalf of PROTECT-SB investigators
ABSTRACTWe compared the myocardial ischemic burden of provisional and routine final kissing-balloon inflation (FKI) with the 1-stent strategy using a second-generation drug-eluting stent for coronary bifurcation lesions (CBL). There are no established guidelines for side branch (SB) intervention after main vessel stenting. In total, 113 CBL patients were randomized to receive different SB intervention strategies: provisional-FKI group (n = 57; FKI only when SB flow was TIMI <3) and routine-FKI group (n = 56; mandatory FKI with aggressive treatment until SB-residual stenosis <50%). Dipyridamole-stress myocardial perfusion scintigraphy with 99mTc was performed after 8 months. The regional summed-difference score (r-SDS) was calculated according to the coronary territory. The primary endpoint included target vessel ischemia (TVI; r-SDS ≥ 2) at 8 months, whereas the clinical primary endpoint was major adverse cardiovascular events (MACE) at 3 years. The percent (%) myocardial ischemia (100 × SDS/68) was also calculated. At 8 months, TVI was identified in 11 and 4% in the provisional-FKI and routine-FKI groups, respectively (p = 0.226). SB-binary restenosis (48 vs. 4%, p < 0.001) and myocardial ischemia at the SB territory (11 vs. 0%, p = 0.030) were more common in the provisional-FKI group; however, in TVI patients, % myocardial ischemia (4.12 ± 1.23% vs. 3.68 ± 1.04%; p = 0.677) did not significantly differ. Moderate/severe ischemia (>10% myocardial ischemia) was not observed in the target vessel in either group. Long-term cumulative MACE were similar between the groups (9 vs. 14%; p = 0.358). Provisional-FKI according to TIMI-SB flow grade led to similar and acceptable myocardial ischemia, in comparison with routine-FKI, which may contribute to the identical long-term follow-up. More... »
PAGES1067-1076
http://scigraph.springernature.com/pub.10.1007/s00380-017-0977-4
DOIhttp://dx.doi.org/10.1007/s00380-017-0977-4
DIMENSIONShttps://app.dimensions.ai/details/publication/pub.1084741193
PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/28401352
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