Coronary Blood Flow and Myocardial Ischemia

Weil, Brian R.; Canty, John M.

doi:10.1007/978-1-4614-6705-2_22

Cited by 16 publications

(1 citation statement)

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“…Severe stenosis of a coronary artery causes a decrease in post-stenotic pressure, and redistribution of blood to the ischemic area occurs by dilation of the vessels developed by angiogenesis. This is called arteriogenesis [ 13 ].…”

Section: Discussionmentioning

confidence: 99%

The Relationship Between Coronary Collateral Circulation and Serum Adropin Levels

Vural¹,

Kurt²,

Karagöz³

et al. 2023

Cureus

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ObjectiveCoronary collateral circulation (CCC) are vascular structures that limit the infarct area, protect left ventricular function, and reduce the frequency of arrhythmia and mortality during myocardial ischemia and infarction. In this study, we examined the relationship between the development of CCC and serum adropin levels, which has been shown in previous studies to regulate endothelial functions and increase endothelial nitric oxide synthesis, in patients with acute myocardial infarction. MethodsThis study included 41 patients with insufficient CCC and 43 patients with well-developed CCC who were hospitalized for acute myocardial infarction and underwent coronary angiography. The Cohen-Rentrop classification was used to grade the CCC. The patients were divided into two groups according to Rentrop grades: those with a 0-1 stage were considered as insufficient and those with grades of 2-3 were considered as well-developed CCC. We took blood samples to measure the adropin levels within the first 24 hours of hospitalization. ResultsThe mean age was 59.1±11.9 years and 62 (73.8%) were male. The right coronary artery was the most frequently target vessel (n: 51, 60.7%), and the majority of the patients presented with ST-segment elevation myocardial infarction (STEMI) (n:58, 69%). The median interval between the severe chest pain and the intervention was significantly higher in patients with well-developed CCC (p=0.042). The serum adropin levels in patients with insufficient CCC were significantly lower than in those with well-developed CCC (196.3 [131.5 -837.0] pg/mL vs. 235.5 [171.9 -1124.2] pg/mL, p<0.001). Logistic regression analysis revealed that the circumflex artery as the target vessel, NSTEMI (non-STEMI) as the type of myocardial infarction, and serum adropin level were the independent risk factors for the prediction of poor coronary collateral vessel formation (p<0.05). ConclusionsIn this study, we found that in patients with acute myocardial infarction, those with well-developed CCC had higher adropin levels.

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Section: Discussionmentioning

confidence: 99%