Impact of kissing balloon inflation on the main vessel stent volume, area, and symmetry after side-branch dilation in patients with coronary bifurcation lesions: a serial volumetric intravascular ultrasound study.
JACC Cardiovasc Interv
; 6(9): 923-31, 2013 Sep.
Article
em En
| MEDLINE
| ID: mdl-23954062
ABSTRACT
OBJECTIVES:
Intravascular ultrasound (IVUS) was performed to investigate the impact of kissing balloon inflation (KBI) on the main vessel (MV) stent volume, area, and symmetry after side-branch (SB) dilation in patients with coronary bifurcation lesions (CBL).BACKGROUND:
It remains controversial whether KBI would restore the MV stent area and symmetry loss after SB dilation.METHODS:
A total of 88 serial IVUS examinations of the MV were performed after MV angioplasty, MV stenting, SB dilation, and KBI in 22 patients with CBL. The MV stent was divided into proximal, bifurcation, and distal segments; the stent volume index (SVI), minimal stent area (MSA), stent symmetry index (SSI), and external elastic membrane (EEM) volume index were measured in 198 stent segments and compared after MV stenting, SB dilation, and KBI.RESULTS:
In the bifurcation segment, SVI, MSA, and SSI were significantly smaller after SB dilation than after MV stenting and KBI (SVI was 6.10 ± 1.50 mm(3)/mm vs. 6.68 ± 1.60 mm(3)/mm and 6.57 ± 1.60 mm(3)/mm, respectively, p < 0.05; MSA was 5.15 ± 1.30 mm(2) vs. 6.08 ± 1.40 mm(2) and 5.86 ± 1.50 mm(2), respectively, p < 0.05; and SSI was 0.78 ± 0.02 mm(2) vs. 0.87 ± 0.03 mm(2) and 0.84 ± 0.03 mm(2), respectively, p < 0.05). KBI restored the MV SVI, MSA, and SSI after SB dilation. In the proximal segment, SVI, MSA, and EEM volume index were significantly larger, but SSI was smaller after KBI than after MV stenting and SB dilation. In the distal segment, neither SB dilation nor KBI had a significant impact on the MV stent volume or symmetry.CONCLUSIONS:
This is the first comprehensive volumetric IVUS analysis of CBL, to our knowledge, demonstrating that KBI restores the MV stent volume, area, and symmetry loss after SB dilation in the bifurcation segment, and induces asymmetric stent expansion in the proximal segment.Palavras-chave
CBL; DES; EEM; EES; ISA; IVUS; KBI; MLD; MSA; MV; P&M; PCI; POT; QCA; RD; SB; SES; SSI; SVI; bifurcation lesions; coronary bifurcation lesions; drug-eluting stent(s); everolimus-eluting stent(s); external elastic membrane; incomplete stent apposition; intravascular ultrasound; kissing balloon inflation; kissing balloon inflation(s); main vessel; minimal lumen diameter; minimal stent area; percutaneous coronary intervention; plaque plus media; proximal optimization treatment; quantitative coronary angiography; reference diameter; side branch; sirolimus-eluting stent(s); stent symmetry index; stent volume index; stenting
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Doença da Artéria Coronariana
/
Angioplastia Coronária com Balão
/
Stents
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Ultrassonografia de Intervenção
/
Vasos Coronários
Tipo de estudo:
Prognostic_studies
Limite:
Aged
/
Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
JACC Cardiovasc Interv
Assunto da revista:
ANGIOLOGIA
/
CARDIOLOGIA
Ano de publicação:
2013
Tipo de documento:
Article