Abstract:
BACKGROUND:Fluid dynamic mechanisms attributed to coronary bifurcation lesions remain a subject of study. The present study aimed at investigating the hemodynamic change of wall shear stress (WSS) in patients with coronary bifurcation lesions treated by double kissing (DK) crush or one-stent with final kissing balloon inflation (FKBI). METHODS:Eighty-one patients with bifurcation lesions treated by stenting who had 3-D model reconstruction were studied. The bifurcation vessels were divided into main vessel (MV), main branch (MB), side branch (SB), and polygon of confluence (POC). MB and SB were classified by internal- and lateral-subsegments, respectively. RESULTS:The baseline magnitude of WSS in proximal MV, POC-MV, POC-MB, POC-SB and MB-internal segments increased significantly, compared to MB-lateral, SB-internal and SB-lateral. DK crush had the potential of uniformly reducing WSS, turbulent index and the WSS gradient. The WSS value at the POC-SB and SB in the one-stent group remained higher. The turbulent index and WSS gradient between the POC-SB minus the SB-lateral had equal predictive values for in-stent restenosis (ISR). CONCLUSION:Fluid dynamic results favor the use of DK crush over the one-stent technique.
journal_name
Chin Med J (Engl)journal_title
Chinese medical journalauthors
Chen SL,Kan J,Zhang JJ,Hu ZY,Xu Tsubject
Has Abstractpub_date
2012-05-01 00:00:00pages
1720-6issue
10eissn
0366-6999issn
2542-5641journal_volume
125pub_type
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