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Myocardial perfusion in patients with a totally occluded left anterior descending coronary artery reinjected by a normal right coronary artery

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dc.contributor.author Tarcha, Walid
dc.contributor.author Chammas, Elie
dc.contributor.author Hussein, Ayman
dc.contributor.author Ballane, Ghada
dc.contributor.author Helou, Antoine
dc.contributor.author Yatim, Ahmad
dc.date.accessioned 2019-04-16T09:19:19Z
dc.date.available 2019-04-16T09:19:19Z
dc.date.copyright 2008 en_US
dc.identifier.issn 1940-1574 en_US
dc.identifier.uri http://hdl.handle.net/10725/10453
dc.description.abstract In this article, myocardial perfusion in patients with a totally occluded left anterior descending artery reinjected by a normal right coronary artery is assessed using stress single photon emission computed tomography (SPECT). In all, 20 patients, with a totally occluded left anterior descending artery reinjected by normal right coronary artery, underwent myocardial single photon emission computed tomography imaging within 60 days of angiography. All patients had abnormal perfusion single photon emission computed tomography results and 70% had reversible defects. Perfusion defects at rest were present in 75% of patients, with perinecrotic residual ischemia in 45% of patients whereas for 30% of patients, no viable myocardium was detected in the collateral-dependent segments. In all, 25% of patients had no resting perfusion defects but all are presented with stress-induced ischemia. Collaterals are not protective against stress-induced ischemia, but they can preserve myocardial viability. This conclusion is highly supported by the presence of residual ischemia in the collateral-dependent segments. en_US
dc.language.iso en en_US
dc.title Myocardial perfusion in patients with a totally occluded left anterior descending coronary artery reinjected by a normal right coronary artery en_US
dc.type Article en_US
dc.description.version Published en_US
dc.title.subtitle the role of collateral circulation en_US
dc.author.school SOM en_US
dc.author.idnumber 201004813 en_US
dc.author.department N/A en_US
dc.description.embargo N/A en_US
dc.relation.journal Angiology en_US
dc.journal.volume 59 en_US
dc.journal.issue 4 en_US
dc.article.pages 464-468 en_US
dc.keywords Collateral circulation en_US
dc.keywords Myocardial perfusion en_US
dc.keywords SPECT en_US
dc.keywords Total LAD occlusion en_US
dc.identifier.doi https://doi.org/10.1177/0003319707309308 en_US
dc.identifier.ctation Chammas, E., Hussein, A., Ballane, G., Helou, A., Yatim, A., Tarcha, W., & Ghanem, G. (2008). Myocardial perfusion in patients with a totally occluded left anterior descending coronary artery reinjected by a normal right coronary artery: the role of collateral circulation. Angiology, 59(4), 464-468. en_US
dc.author.email walid.tarcha@lau.edu.lb en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url https://journals.sagepub.com/doi/abs/10.1177/0003319707309308 en_US
dc.author.affiliation Lebanese American University en_US


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