Study of Coronary Collaterals in Patients with Stable Angina

Arzu, Jahanara; Rahman, Fazlur; Haque, Kmhs Sirajul; Siddique, Abu; Anam, Khairul; Rahman, Mukhlesur; Ahmed, Khurshed; Zaman, SM Mustafa; Awal, Anisul; Subedi, Bikash; Ahmed, Quazi Arif; Islam, Nazar Ul; Salman, Mohammad; Sultan, Ashraf Uddin; Fatema, Nilufar

doi:10.3329/uhj.v6i2.7245

Cited by 2 publications

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“…Hansen et al and Arzu et al reported patients with collaterals were associated with a higher incidence of chronic stable angina and history of previous myocardial infarction [43][44][45]. Piek et al showed the duration of angina, coronary artery severity, and proximal lesion location were positively associated with coronary collaterals [46].…”

Section: Discussionmentioning

confidence: 99%

"A Study of Coronary Collateral Circulation in Coronary Artery Disease"

Asotra¹

2021

ACR

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Coronary artery disease is an important global cause of morbidity and mortality and high prevalence is found in the Indian population. Collaterals developed in coronary arteries help in the protection of the myocardium from infarction, preservation of ventricular functions, and thus reducing cardiovascular events. The objective of this study is to assess the prevalence, clinical predictors of coronary collaterals, relationship with severity of coronary artery disease, regional wall motion abnormality, and left ventricular global ejection fraction.Methods: 302 consecutive coronary angiograms of patients of clinical diagnosis of coronary artery disease were analyzed. Focused clinical history, demographic profile, and risk factors were analyzed. Medical history focused on chronic stable angina, past myocardial infarction unstable angina and acute myocardial infarction was taken. Collateral vessels were analyzed according to Rentrop classification.Results: Prevalence of coronary collaterals was seen in 74% of patients with luminal diameter stenosis of >50%. Grade 1 collaterals were observed in 26.5%, Grade 2 in 27.8%, and Grade 3 in 19.8%. 51.7 % of patients had intracoronary, 23.3 % had intracoronary and 25% of patients had both inter and intracoronary collaterals. Conclusions:The prevalence of coronary collaterals is high in obstructive coronary artery disease. There was no association of collaterals with age, sex, chronic stable angina, unstable angina, and Myocardial infarction. The severity of coronary artery disease had an independent significant association with the presence of collaterals. There was a significant correlation of grade of collaterals with regional wall motion abnormality and with left ventricular global ejection fraction.

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Section: Discussionmentioning

confidence: 99%

"A Study of Coronary Collateral Circulation in Coronary Artery Disease"

Asotra¹

2021

ACR

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“…9 There were poor development of coronary collateral vessels in patients with metabolic syndrome and incidence of development of coronary collaterals was significantly higher in patients with stable angina pectoris. 10,11 Coronary collaterals appear to play important role in coronary artery disease morbidity and mortality. But the conflicting results remain, and the exact mechanism of collateral formation is still unknown.…”

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Association of Hypertension on Development of Coronary Collaterals in Severe Coronary Artery Disease

et al. 2015

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Objectives: Coronary collaterals appear to play important role in coronary artery disease morbidity and mortality. In this study it was intended to determine whether hypertension is associated with development of coronary collaterals in patients with severe coronary artery disease. Methods: This was an observational cross-sectional study carried out in the department of cardiology of National Institute of Cardiovascular Diseases, Dhaka, Bangladesh during the period from October 2010 to June 2011. A total of 334 patients were examined to include in the study. Among them 118 patient of severe coronary artery disease (CAD) were included who fulfilled the inclusion and exclusion criteria. From where 63 patients were CAD with hypertension (Group -I) and 55 patients were CAD without hypertension (Group -II). Based on Rentrop Grading the study patients were divided in two groups, patients with poor collaterals (Grade 0& 1) and good collaterals (Grade 2&3). Data compared the coronary collaterals in hypertensive patients with those without hypertension with severe coronary artery disease. Results: The data showed that good collateral circulations were higher with duration of hypertension. The difference were statistically significant in duration <5 years and duration >10 years in both groups (p<0.05). The pattern of vessel involvement in double vessel disease and triple vessel disease (p <.001) and dyslipidemia (p<0.004) appeared to be significant predictor of hypertension controlling for other factors in the model. People with hypertension are around four times more likely to have good collateral circulation, multiple vessel disease and around 12 times more likely to have dyslipidemia. Conclusion: It is concluded that the patients of hypertension develop higher grades of coronary collaterals which increases with duration of hypertension in patients of severe coronary artery disease. Involvements of coronary arteries were more extensive in patients of hypertension with coronary artery disease. DOI: http://dx.doi.org/10.3329/cardio.v7i2.22250 Cardiovasc. j. 2015; 7(2): 98-103

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Study of Coronary Collaterals in Patients with Stable Angina

Cited by 2 publications

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"A Study of Coronary Collateral Circulation in Coronary Artery Disease"

"A Study of Coronary Collateral Circulation in Coronary Artery Disease"

Association of Hypertension on Development of Coronary Collaterals in Severe Coronary Artery Disease

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