scholarly journals Assessment of Coronary Inflammation by Pericoronary Fat Attenuation Index in Clinically Suspected Myocarditis with Infarct-Like Presentation

2021 ◽  
Vol 10 (18) ◽  
pp. 4200
Author(s):  
Anna Baritussio ◽  
Francesco Vacirca ◽  
Honoria Ocagli ◽  
Francesco Tona ◽  
Valeria Pergola ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Healthy Volunteers ◽  
Troponin I ◽  
Right Ventricular Ejection Fraction ◽  
Mean Value ◽  
Ventricular Ejection Fraction ◽  
Mean Values ◽  
Attenuation Index ◽  
Presentation Methods ◽  
Artery Disease

Background: The pathophysiology of angina-like symptoms in myocarditis is still unclear. Perivascular fat attenuation index (pFAI) by coronary computed tomography angiography (CCTA) is a non-invasive marker of coronary inflammation (CI) in atherosclerosis. We explored the presence of CI in clinically suspected myocarditis with infarct-like presentation. Methods: We retrospectively included 15 consecutive patients (67% male, age 30 ± 10 years) with clinically suspected infarct-like myocarditis who underwent CCTA to rule out coronary artery disease. Right coronary artery (RCA) pFAI mean value was compared with that of healthy volunteers. Results: Mean RCA pFAI value was −92.8 ± 8.4 HU, similar to that of healthy volunteers (−95.2 ± 6.0, p = 0.8). We found no correlation between RCA pFAI mean values and peak Troponin I (r = −0.43, p = 0.11) and C-reactive protein at diagnosis (r = −0.25, p = 0.42). Patients with higher pFAI values showed higher biventricular end-systolic volumes (ESV) (p = 0.038 for left and p = 0.024 for right ventricle) and lower right ventricular ejection fraction (RVEF) (p = 0.038) on cardiovascular magnetic resonance. Conclusions: In clinically suspected myocarditis with infarct-like presentation, RCA pFAI values are lower than those validated in atherosclerosis. The correlation between higher pFAI values, higher biventricular ESV and lower RVEF, may suggest a role of pFAI in predicting non-atherosclerotic CI (i.e., infective/immune-mediated “endothelialitis”).

Effect of Acupuncture at Nei-Kuan on Left Ventricular Function in Patients with Coronary Artery Disease

1999 ◽  
Vol 27 (02) ◽  
pp. 149-156 ◽  
Author(s):  
Feng-Ming Ho ◽  
Por-Jau Huang ◽  
Huey-Ming Lo ◽  
Fung-Kwan Lee ◽  
Tser-Haw Chern ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Normal Subjects ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Imaging Protocol ◽  
Ventricular Ejection Fraction ◽  
Mean Values ◽  
The Mean ◽  
Artery Disease

Effect of acupuncture at Nei-Kuan (EH-6) on left ventricular ejection fraction (LVEF) was examined in 22 patients with angiographically proved coronary artery disease (CAD) and 22 normal subjects. Serial equilibrium radionuclide angiography was done to measure LVEF at 4 different times (at baseline, at 1 to 15 minutes, and 16 to 30 minutes during acupuncture, and immediately after acupuncture). One week later, each patient had an identical imaging protocol with acupuncture performed at a dummy point. Our results showed that in normal subjects, the mean values of LVEF did not change significantly during or after acupuncture. In contrast, in patients with CAD, the mean values of LVEF in the initial 15 minutes of acupuncture significantly increased from baseline (42.5 ± 15.6% vs. 40.6 ± 15.4%, p < 0.05). The increase persisted through the next 15 minutes of acupuncture and 15 minutes after acupuncture, but became insignificant at one week. Thus, acupuncture at Nei-Kuan can temporarily improve LV function in patients with CAD.

Abstract P354: Circulating Interleukin 17 A In Patients With Acute And Chronic Coronary Syndrome

2021 ◽  
Vol 129 (Suppl_1) ◽  
Author(s):  
Dinaldo C Oliveira ◽  
Edivaldo Mendes Filho ◽  
Mariana Barros ◽  
Carolina Oliveira ◽  
Joao Vitor Cabral ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Healthy Volunteers ◽  
Clinical Characteristics ◽  
Serum Levels ◽  
Cross Sectional Study ◽  
Interleukin 17 ◽  
Cross Sectional ◽  
Coronary Syndrome ◽  
Artery Disease

Introduction: Interleukin L-17 is produced by Th 17 cells and other cells. There is a debate if IL 17 is atherogenic or atheroprotective. The true role of this interleukin during the development and progression of the coronary artery disease is not known. Objective: To evaluate if there are differences between the IL17 A serum levels according to clinical presentation of the coronary artery disease. Methods: This is a cross sectional study which enrolled 101 patients with acute coronary syndrome (ACS), 100 patients with chronic coronary syndrome (CCS) and 100 healthy volunteers. Blood samples were taken from patients ( at admission) and controls to analysis the level of IL17A. Clinical characteristics were collected through questionnaires. This research was approved by ethical committee. Results: Comparisons of the clinical characteristics between patients with ACS and CCS revealed: mean age ( 62 ± 12.4 vs 63.3 ± 9.8, p = 0.4 ), male (63.4% vs 58%, p = 0.4) hypertension (85.1% vs 79%, p = 0.1) , disyipidemia (48% vs 31%, p =0.01), Diabetes Mellitus (47.5% vs 41%, p = 0.3), previous myocardial infarction (57.4% vs 40%, p = 0,01), smoking (29.7% vs 38%, p = 1). The peripheral concentrations of IL17A according to ACS, CCS and controls were: 5.36 ± 8.83 vs 6.69 ± 17.92 vs 6.26 ± 11.13, p = 0.6. Besides, the comparison between ACS and CCS showed: 5.36 ± 8.83 vs 6.69 ± 17.92, p = 0.3. Conclusion: The main finding os this study was that the circulating IL 17 concentrations were similar in patients with ACS, CCS and healthy volunteers). Besides, there was no difference between patients with ACS and CCS. Therefore, our hypothesis is that in patients with ACS and CCS the circulating IL 17 A concentrations are low or undetectable.

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