Plaque erosion or coronary artery embolism? Findings from clinical presentation, optical coherence tomographic and histopathological analysis in a case with acute coronary syndrome

2019 ◽  
Vol 35 (10) ◽  
pp. 1791-1792
Author(s):  
Satoshi Kitahara ◽  
Yu Kataoka ◽  
Fumiyuki Otsuka ◽  
Hayato Hosoda ◽  
Yasuhide Asaumi ◽  
...  
Keyword(s):  
Acute Coronary Syndrome ◽  
Coronary Artery ◽  
Clinical Presentation ◽  
Histopathological Analysis ◽  
Optical Coherence ◽  
Coronary Syndrome ◽  
Plaque Erosion ◽  
Artery Embolism ◽  
Coronary Artery Embolism

P2245Sex differences in the in-vivo markers of platelet activation among patients with ischemic heart disease: insights from the EVA study

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
V Raparelli ◽  
G F Romiti ◽  
N Sperduti ◽  
G F Santangelo ◽  
M Vano ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Acute Coronary Syndrome ◽  
Sex Differences ◽  
Coronary Artery ◽  
Coronary Stenosis ◽  
Clinical Presentation ◽  
Coronary Syndrome ◽  
Chronic Angina ◽  
Artery Disease

Abstract Background/Introduction Ischemic heart diseases (IHD) are not synonymous with obstructive flow-limiting coronary artery disease (CAD), especially in women. Platelet dysfunction is suggested as a potential mechanism favouring ischemia in non-obstructive CAD. However, it is unknown whether sex differences in platelet function of patients with non-obstructive CAD exist. Purpose We assessed for sex differences in in-vivo markers of platelet activation among patients with the acute coronary syndrome and chronic stable angina, with or without obstructive CAD Methods From the “Endocrine Vascular disease Approach” (EVA) study, we selected IHD patients undergoing urgent or elective coronary angiography with complete baseline clinical characteristics and angiographic data. Non-obstructive CAD was defined as the presence of coronary stenosis <50%. Thromboxane B2 (TxB2) and soluble P-selectin (sP-s) were measured at baseline. A sex-stratified analysis of platelet biomarkers was performed. Results Among two-hundred-seventy-seven patients (mean age 67±11, 37% women), non-obstructive CAD was documented in 25% of patients. Acute coronary syndrome (ACS) was the reason for angiography in 61% of cases. Women had more frequently ACS, as compared with men (54.8% vs 41.3%, p=0.001), with predominantly non-obstructive CAD. Median serum TxB2 (121.5 [92.7–174.0] vs 103.5 [83.0–140.2] pg/ml, p=0.005) and plasma sP-s (27.0 [18.7–35.0] vs 22.0 [16.0–30.0] ng/ml, p=0.006) levels were higher in patients with ACS as compared with the ones with stable chronic angina. The median concentration of TxB2 was significantly increased in women as compared with men, regardless of the clinical presentation and the coronary stenosis degree (all comparison, p<0.001). However, women with non-obstructive CAD were the group with the highest serum levels of TxB2 (140.0 [111.0–152.0] pg/ml). Sex differences in the plasma sP-s level were also observed among patients with stable chronic angina (women, 26 [20.0–34.0] vs men, 21 [16.6–27.7] ng/ml, p=0.002) and with non-obstructive CAD (women, 26 [20.5–34.5] vs men, 18.5 [16.6–26.0] ng/ml, p=0.003). Conclusion(s) Women with IHD and non-obstructive CAD had increased level of TxB2 and sP-s as compared with men, independently by the clinical presentation. Further investigations are warranted to verify the role of platelet hyperactivation in the pathogenesis of myocardial ischemia with non-obstructive coronary artery disease among women. Acknowledgement/Funding Scientific Independence of Young Researchers Program (RBSI14HNVT) - Ministry of Education, University and Research (MIUR)

Abstract 2506: Coronary Spasm Occurs in Coronary Artery with Diffuse Intima Thickeing without Lipd and/or Calcification:Evaluation with Intravascular Optical Coherence Tomography

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Yoshinobu Morikawa ◽  
Shiro Uemura ◽  
Ken-ichi Ishigami ◽  
Tsunenari Soeda ◽  
Satoshi Okayama ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Acute Coronary Syndrome ◽  
Coronary Artery ◽  
Thrombus Formation ◽  
Coronary Spasm ◽  
Morphological Characteristics ◽  
Provocation Test ◽  
Optical Coherence ◽  
Coronary Syndrome ◽  
Intravascular Optical Coherence Tomography

Coronary spasm (CS) plays an important role in the pathogenesis of many kinds of ischemic heart disease. However, morphological characteristics of coronary artery of CS remain unknown. We evaluated 37 patients with coronary spastic angina (CSA) who underwent diagnostic acetylcholine (ACh) provocation test, and 2 acute coronary syndrome patients suspected to have severe CS. The intravascular optical coherence tomography (OCT) was performed after complete dilatation of coronary artery in all patients and additionally performed during ACh-induced CS in 4 patients. Based on the ACh provocation test, 23 patients who developed CS and ischemic ECG changes were diagnosed as coronary spastic angina (CSA), and other 14 patients without CS were referred as CS-negative patients. CS-negative patients were further divided into 2 sub-groups according to the lipid and/or calcification content in coronary arterial wall by OCT findings. Intravascular OCT revealed most coronary segments with ACh-induced CS had homogenous intima thickening, and quantitative OCT analysis showed that CS-positive segments had significantly larger intima area compared with CS-negative segments without lipid and/or calcification (2.73±0.07 vs. 1.36±0.06 mm 2 , P<0.001). By contrast, CS-positive segments had significantly smaller intima area compared with CS-negative segments with lipid and/or calcification (2.73±0.07 vs. 4.51±0.17 mm 2 , P<0.001). During ACh-induced CS, lumen and total vascular area significantly decreased, whereas intima area did not change in comparison with complete vasodilatation. Furthermore, luminal surface of intimal layer formed markedly wavy configuration during CS. In CSA cases with acute coronary syndrome, we observed additional findings of intima injury as erosion and thrombus formation at spasm site. Coronary spasm occurs in coronary artery with diffuse intima thickening without lipid and/or calcification content but not in artery either without intima thickening or with lipid and/or calcification, and coronary spasm sometimes induces intimal injury by itself which may cause acute coronary event.

scholarly journals Profile of acute coronary syndrome in young diabetics: a review

2020 ◽  
Vol 7 (5) ◽  
pp. 869
Author(s):  
Lakshmi Narayanan ◽  
Mohamed Hanifah
Keyword(s):  
Coronary Artery Disease ◽  
Acute Coronary Syndrome ◽  
Coronary Artery ◽  
Clinical Presentation ◽  
Exclusion Criterion ◽  
Diabetic Patients ◽  
Angiographic Finding ◽  
Coronary Syndrome ◽  
Vessel Disease ◽  
Artery Disease

The clinical presentation and angiographic findings of coronary artery disease (CAD) varies from diabetic and non-diabetic patients and varies with the age of presentation. Coronary artery disease in patients below the age of 45 is a special subset. The objective of this study is to compare the clinical and angiographic profile in patients with the acute coronary syndrome (ACS) with diabetes mellitus (DM) and without DM below the age of 45 years. Clinical Presentation of coronary artery disease in young patients with various risk factors differs, which plays an important role in management strategies. This was conducted through internet search on PubMed and ProQuest database from 2000 to until 2019. Key words used for searching are acute coronary syndrome, young diabetics, and clinical, angiographic profile. An important exclusion criterion is studies which included type one diabetic patients. Totally 35 papers were reviewed. Pattern of involvement of coronary arteries as assessed by the coronary angiographic study is found to be different in younger CAD patients. Atypical clinical presentation and distinct angiographic finding are common in diabetics below the age of 45. In most of the studies single vessel disease (SVD) is the most common angiographic finding in young CAD and non-diabetics. While the diabetics showed the more diffuse pattern of double vessel disease (DVD).

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