抄録
Objectives: To evaluate, in vitro, SB stenting techniques after failed provisional stenting. We aimed to compare flows and stent strut apposition of T and protrusion (TAP) versus Reversed String (RS) techniques using a flow simulator, optical coherence tomography (OCT) using silicon bifurcation phantoms with different bifurcation angulations. Background: While bifurcation coronary artery stenoses are preferably treated with provisional T-stenting strategy, the preferred bailout two stents technique to treat the side branch remains unclear. Methods and results: Eleven 30°-angle and ten 60°-angle bifurcation phantoms were used. After performing provisional stenting, TAP and RS techniques were compared in six phantoms with 30° and five with 60° angles. Flow measurement was performed using absolute coronary flow and particle image velocimetry techniques. Strut apposition was evaluated using OCT. Flow analyses showed that disturbed flow regions were observed in the vicinity of floating struts protruded into the lumen both regardless of TAP and RS techniques. OCT analysis showed a higher proportion of floating struts protruding into the main branch with TAP compared to RS, respectively (13% vs. 1%; P <0.001) in both angles. Conclusions: RS reduces the proportion of floating struts protruding into the main branch compared to TAP, at comparable flow rates. Clinical studies are needed to evaluate feasibility and potential clinical benefit of this technique.
| 元の言語 | English |
|---|---|
| ページ（範囲） | E8-E16 |
| ジャーナル | Catheterization and Cardiovascular Interventions |
| 巻 | 93 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | Published - 2019 1 1 |
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ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Cardiology and Cardiovascular Medicine
これを引用
In vitro flow and optical coherence tomography comparison of two bailout techniques after failed provisional stenting for bifurcation percutaneous coronary interventions. / Adjedj, Julien; Picard, Fabien; Mogi, Satoshi; Iwasaki, Kiyotaka; Aoumeur, Hamid; Alansari, Omar; Agudze, Edem; Wijns, William; Varenne, Olivier.
：: Catheterization and Cardiovascular Interventions, 巻 93, 番号 1, 01.01.2019, p. E8-E16.研究成果: Article
}
TY - JOUR
T1 - In vitro flow and optical coherence tomography comparison of two bailout techniques after failed provisional stenting for bifurcation percutaneous coronary interventions
AU - Adjedj, Julien
AU - Picard, Fabien
AU - Mogi, Satoshi
AU - Iwasaki, Kiyotaka
AU - Aoumeur, Hamid
AU - Alansari, Omar
AU - Agudze, Edem
AU - Wijns, William
AU - Varenne, Olivier
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Objectives: To evaluate, in vitro, SB stenting techniques after failed provisional stenting. We aimed to compare flows and stent strut apposition of T and protrusion (TAP) versus Reversed String (RS) techniques using a flow simulator, optical coherence tomography (OCT) using silicon bifurcation phantoms with different bifurcation angulations. Background: While bifurcation coronary artery stenoses are preferably treated with provisional T-stenting strategy, the preferred bailout two stents technique to treat the side branch remains unclear. Methods and results: Eleven 30°-angle and ten 60°-angle bifurcation phantoms were used. After performing provisional stenting, TAP and RS techniques were compared in six phantoms with 30° and five with 60° angles. Flow measurement was performed using absolute coronary flow and particle image velocimetry techniques. Strut apposition was evaluated using OCT. Flow analyses showed that disturbed flow regions were observed in the vicinity of floating struts protruded into the lumen both regardless of TAP and RS techniques. OCT analysis showed a higher proportion of floating struts protruding into the main branch with TAP compared to RS, respectively (13% vs. 1%; P <0.001) in both angles. Conclusions: RS reduces the proportion of floating struts protruding into the main branch compared to TAP, at comparable flow rates. Clinical studies are needed to evaluate feasibility and potential clinical benefit of this technique.
AB - Objectives: To evaluate, in vitro, SB stenting techniques after failed provisional stenting. We aimed to compare flows and stent strut apposition of T and protrusion (TAP) versus Reversed String (RS) techniques using a flow simulator, optical coherence tomography (OCT) using silicon bifurcation phantoms with different bifurcation angulations. Background: While bifurcation coronary artery stenoses are preferably treated with provisional T-stenting strategy, the preferred bailout two stents technique to treat the side branch remains unclear. Methods and results: Eleven 30°-angle and ten 60°-angle bifurcation phantoms were used. After performing provisional stenting, TAP and RS techniques were compared in six phantoms with 30° and five with 60° angles. Flow measurement was performed using absolute coronary flow and particle image velocimetry techniques. Strut apposition was evaluated using OCT. Flow analyses showed that disturbed flow regions were observed in the vicinity of floating struts protruded into the lumen both regardless of TAP and RS techniques. OCT analysis showed a higher proportion of floating struts protruding into the main branch with TAP compared to RS, respectively (13% vs. 1%; P <0.001) in both angles. Conclusions: RS reduces the proportion of floating struts protruding into the main branch compared to TAP, at comparable flow rates. Clinical studies are needed to evaluate feasibility and potential clinical benefit of this technique.
KW - bifurcation angle
KW - in vitro bifurcation models
KW - provisional T-stenting
KW - Reversed String
KW - T and protrusion
UR - http://www.scopus.com/inward/record.url?scp=85055467396&partnerID=8YFLogxK
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U2 - 10.1002/ccd.27718
DO - 10.1002/ccd.27718
M3 - Article
VL - 93
SP - E8-E16
JO - Catheterization and Cardiovascular Interventions
JF - Catheterization and Cardiovascular Interventions
SN - 1522-1946
IS - 1
ER -