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Organized by
Nanjing Heart Center
Asian Bifurcation Club (ABC)
Nanjing First Hospital, Nanjing Medical University
Co-organized by
Chinese Society of Cardiology (CSC)
Capacity Building and Continuing Education Center,National Health and Family Planning Commission (CBCEC)
American Society for Cardiovascular Angiography and Interventions (SCAI)
Asian Heart Society (AHS)
Contact Us
Registration Administration of Domestic Representatives
Hongjuan Peng :
+86-13913895477
Haimei Xu +86-13914736846
cbsnj@cbsmd.cn
Registration Administration of Overseas Representatives
Ling Lin : +86 (25) 52271398
+86-13951884596
cbs@cbsmd.cn
Management of Challenging Cases
Yingying Zhao :+86-13815408517
sub@cbsmd.cn
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CBS2019 Congress Secretariat, Nanjing First Hospital, Building No.9 68# Changle Road, Nanjing, China
210006
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Recommended Paper
Management of Acute Myocardial Infarction During the COVID-19 Pandemic
COVID-19 and Thrombotic or Thromboembolic Disease: Implications for Prevention, Antithrombotic Therapy, and Follow-up
CSC Expert Consensus on Principles of Clinical Management of Patients with Severe Emergent Cardiovascular Diseases during the COVID-19 Epidemic
ACC Clinical Bulletin Focuses on Cardiac Implications of Coronavirus (COVID-19)
IVUS Guidance
Original Research2010 Jan;5(6):709-15.
JOURNAL：EuroIntervention. Article Link
Motreff P, Rioufol G, Gilard M et al. Keywords: diffuse atherosclerotic left main coronary artery disease; diffuse atheroma; LMCA; IVUS
AIMS - Angiographic analysis of left main coronary artery (LMCA) stenosis can be hindered by the lack of any reference segment when the LMCA is short or there is diffuse atheroma. Fractal geometric law (FGL) enables the theoretic diameter of one bifurcation vessel to be calculated from those of the other two (Dmother=0.678*(Ddaughter1+Ddaughter2). Applied to the LMCA, the FGL can help the quantification of stenoses.
METHODS AND RESULTS - Fifty-two patients with angiographically mild focal LMCA disease (n=14) or normal to nearly normal LMCA (n=38) who had undergone intravascular ultrasound (IVUS) were included. IVUS analysis confirmed all 14 focal stenoses (group C); of the 38 angiographically normal patients, however, 10 were found to present diffuse LMCA disease (group B), the remaining 28 showing a truly healthy LMCA (group A). LMCA stenosis in groups A,B and C was respectively 3%,4% and 42% on usual quantitative coronary angiography(QCA) and 5%, 31% and 43% on QCAfractal applying the FGL. In cases of diffuse atheroma, the FGL corrected the underestimation of LMCA diameter, which averaged 1.2 mm. conclusions: Angiographic underestimation of LMCA stenosis can be corrected by applying the FGL to obtain a theoretic LMCA diameter, thereby unmasking any diffuse atherosclerotic LMCA disease, or to quantify focal stenosis more precisely where the adjacent segments are also pathological.
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