The pathophysiology of stenosis in the ostial site remains unclear.
Efe Edem, Saadet Demirtaş, Sabiye Yılmaz, Yusuf Can, Harun Kılıç, Ramazan Akdemir,Hüseyin Gündüz 2017, 'Successful Percutaneous Intervention for Ostial Stenosis of Left Internal MammaryArterial Graft', Koşuyolu Heart Journalhttp://www.kosuyoluheartjournal.com/managete/fu_folder/2017-2/2017-20-2-159-161.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Semi-selective angiography of the left coronary artery revealed high-grade ostial stenosis.
Klaus Empen, Astrid Hummel, Daniel Beug, Stephan B. Felix, Mathias C. Busch, PiotrM. Kaczmarek 2017, 'Takayasu's arteritis: a case with relapse after urgent coronary revascularization',BMC Research Noteshttp://link.springer.com/article/10.1186/s13104-017-2628-3. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The ostial angioplasty were opened widely in all cases.
Ricardo Ribeiro Dias, Altamiro Ribeiro Dias, Marcelo B Jatene, Adib D Jatene 1995, 'Tratamento cirúrgico da lesão isolada de óstio coronário esquerdo Surgical managementof left coronary ostial lesion', Brazilian Journal of Cardiovascular Surgeryhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76381995000300007. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Several attempts to engage the protruding part of the aorto-ostial stent in the graft failed.
Piers Lieuwe H, Jessurun Gillian AJ, Anthonio Rutger L 2009, 'Use of the float-moor-crush approach for subtotal mid-segment collapse of a protrudingaorto-ostial vein graft stent: a case report', Journal of Medical Case Reportshttp://www.jmedicalcasereports.com/content/3/1/8497. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Results: 116 patients were found to have aorto-ostial coronary artery disease with prevalence of 1.5.
S.K. Verma, B. Kumar, V.K. Bahl 2016, 'Aorto-ostial atherosclerotic coronary artery disease—Risk factor profiles, demographic& angiographic features', International Journal of Cardiology: Heart & Vasculaturehttp://www.sciencedirect.com/science/article/pii/S2352906716300252. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
During operation, one patient required coronary revascularization owing to ostial obstruction.
João Ricardo SANT´ANNA, Renato A. K. KALIL, Paulo R. PRATES, Carlos JUNGBLUT, IvoA. NESRALLA 2002, 'Dupla ampliação anterior e posterior do anel aórtico para substituição valvar Anteriorand posterior enlargement of the aortic annulus for valve replacement', Brazilian Journal of Cardiovascular Surgeryhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76382002000100007. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
All of them had ostial stenosis of 90% or more.
Ricardo Ribeiro Dias, Altamiro Ribeiro Dias, Marcelo B Jatene, Adib D Jatene 1995, 'Tratamento cirúrgico da lesão isolada de óstio coronário esquerdo Surgical managementof left coronary ostial lesion', Brazilian Journal of Cardiovascular Surgeryhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76381995000300007. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)