Abstract:
INTRODUCTION:The functional significance of coronary artery collateral (CAC) vasculature in humans has been debated for decades and this has been compounded by the lack of a standard, systematic, objective method of grading and documenting CAC flow in man. CACs serve as alternative conduits for blood in obstructive coronary artery disease. This study aimed to evaluate the impact of CACs on left ventricular function in the presence of total coronary arterial occlusion. METHODS:The study group included the coronary angiographic records of 97 patients (mean age: 59 ± 8 years). CACs were graded from 0-3 based on the collateral connection between the donor and recipient arteries. Left ventricular function was computed from the ventriculogram and expressed as ejection fraction (EF). RESULTS:The mean EF of the patients with grades 0, 1, 2 and 3 CACs were calculated as 50.4, 47, 60.5 and 70%, respectively. A significant difference was recorded in the mean EF calculated for the different CAC grades (p = 0.001). There was a significant positive correlation (p < 0.001; r = 0.478) between the mean EF and the CAC grades. CONCLUSION:The patients with better coronary collateral grades had a higher mean EF. Therefore, as the grade of CACs increased, there was an improvement in their ability to preserve left ventricular function.
journal_name
Cardiovasc J Afrjournal_title
Cardiovascular journal of Africaauthors
Ajayi NO,Vanker EA,Satyapal KSdoi
10.5830/CVJA-2016-054subject
Has Abstractpub_date
2017-03-01 00:00:00pages
81-85issue
2eissn
1995-1892issn
1680-0745journal_volume
28pub_type
杂志文章abstract:BACKGROUND:Guidelines advise early angiography in non-ST elevation myocardial infarction (NSTEMI) to ensure an optimal outcome. Resource limitations in secondary hospitals in the Western Cape dictate a local guideline to treat NSTEMIs medically with out-patient assessment for angiography, unless mandatory indications f...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章,多中心研究
doi:10.5830/CVJA-2013-017
更新日期:2013-05-01 00:00:00
abstract:AIM:It has previously been shown that β-blocker therapy reduces QT dynamics in heart failure patients. The aim of this study was to demonstrate this improvement with the third-generation β-blocker, nebivolol. METHODS:A total of 72 heart failure patients with systolic dysfunction were included in the study. Corrected Q...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2011-046
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2016-038
更新日期:2016-11-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2015-093
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVE:Cardiac resynchronisation therapy has been shown to be an effective treatment to improve functional status and prolong survival of patients in advanced chronic heart failure. This study assessed the surgical outcomes of left anterior mini-thoracotomy for the implantation of left ventricular epicardial pacing ...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2016-046
更新日期:2017-01-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章,随机对照试验
doi:10.5830/CVJA-2019-022
更新日期:2019-07-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2015-034
更新日期:2015-07-23 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:
更新日期:2010-01-01 00:00:00
abstract::A 104-year-old male patient was admitted to the emergency department with chest pain. An electrocardiogram showed ST-segment elevation in the anterior leads. He was immediately taken to the catheterisation laboratory for emergency angiography, which showed thrombotic stenosis at the proximal portion of the left anteri...
journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2014-001
更新日期:2014-02-23 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2014-034
更新日期:2014-09-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章,评审
doi:
更新日期:2007-05-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2020-017
更新日期:2020-11-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2018-059
更新日期:2019-01-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2014-050
更新日期:2014-09-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:
更新日期:2010-03-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2012-063
更新日期:2012-11-23 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章,评审
doi:10.5830/CVJA-2018-023
更新日期:2018-09-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2016-039
更新日期:2016-11-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2017-017
更新日期:2017-11-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2015-048
更新日期:2015-07-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2013-042
更新日期:2013-09-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:
更新日期:2009-05-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2012-010
更新日期:2012-07-12 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:10.5830/CVJA-2017-036
更新日期:2018-01-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:
更新日期:2007-09-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 社论
doi:
更新日期:2013-06-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type:
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更新日期:2021-01-15 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
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更新日期:2020-11-13 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
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更新日期:2016-05-01 00:00:00
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journal_title:Cardiovascular journal of Africa
pub_type: 杂志文章
doi:CVJ-21.036
更新日期:2011-05-01 00:00:00