scholarly journals Type 2 Kounis syndrome in an allergic woman: An uncommon presentation of acute coronary syndrome

2013 ◽  
Vol 8 (6) ◽  
pp. 176-178 ◽  
Author(s):  
Spyridon Maragkoudakis ◽  
Mihalis Hamilos ◽  
Eleftherios Kallergis ◽  
Panos Vardas
Author(s):  
Ibtissam Kissami ◽  
brahim Housni ◽  
Rachid Jabi ◽  
Bouziane Mohammed ◽  
Nouha Elouafi ◽  
...  

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
L.C.W Fong ◽  
N Lee ◽  
A.T Yan ◽  
M.Y Ng

Abstract Background Prasugrel and ticagrelor are both effective anti-platelet drugs for patients with acute coronary syndrome. However, there has been limited data on the direct comparison of prasugrel and ticagrelor until the recent ISAR-REACT 5 trial. Purpose To compare the efficacy of prasugrel and ticagrelor in patients with acute coronary syndrome with respect to the primary composite endpoint of myocardial infarction (MI), stroke or cardiac cardiovascular death, and secondary endpoints including MI, stroke, cardiovascular death, major bleeding (Bleeding Academic Research Consortium (BARC) type 2 or above), and stent thrombosis within 1 year. Methods Meta-analysis was performed on randomised controlled trials (RCT) up to December 2019 that randomised patients with acute coronary syndrome to either prasugrel or ticagrelor. RCTs were identified from Medline, Embase and ClinicalTrials.gov using Cochrane library CENTRAL by 2 independent reviewers with “prasugrel” and “ticagrelor” as search terms. Effect estimates with confidence intervals were generated using the random effects model by extracting outcome data from the RCTs to compare the primary and secondary clinical outcomes. Cochrane risk-of-bias tool for randomised trials (Ver 2.0) was used for assessment of all eligible RCTs. Results 411 reports were screened, and we identified 11 eligible RCTs with 6098 patients randomised to prasugrel (n=3050) or ticagrelor (n=3048). The included trials had a follow up period ranging from 1 day to 1 year. 330 events on the prasugrel arm and 408 events on the ticagrelor arm were recorded. There were some concerns over the integrity of allocation concealment over 7 trials otherwise risk of other bias was minimal. Patients had a mean age of 61±4 (76% male; 50% with ST elevation MI; 35% with non-ST elevation MI; 15% with unstable angina; 25% with diabetes mellitus; 64% with hypertension; 51% with hyperlipidaemia; 42% smokers). There was no significant difference in risk between the prasugrel group and the ticagrelor group on the primary composite endpoint (Figure 1) (Risk Ratio (RR)=1.17; 95% CI=0.97–1.41; p=0.10, I2=0%). There was no significant difference between the use of prasugrel and ticagrelor with respect to MI (RR=1.24; 95% CI=0.81–1.90; p=0.31); stroke (RR=1.05; 95% CI=0.66–1.67; p=0.84); cardiovascular death (RR=1.01; 95% CI=0.75–1.36; p=0.95); BARC type 2 or above bleeding (RR=1.17; 95% CI =0.90–1.54; p=0.24); stent thrombosis (RR=1.58; 95% CI =0.90–2.76; p=0.11). Conclusion Compared with ticagrelor, prasugrel did not reduce the primary composite endpoint of MI, stroke and cardiovascular death within 1 year. There was also no significant difference in the risk of MI, stroke, cardiovascular death, major bleeding and stent thrombosis respectively. Figure 1. Primary Objective Funding Acknowledgement Type of funding source: None


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M Elharram ◽  
A Sharma ◽  
W White ◽  
G Bakris ◽  
P Rossignol ◽  
...  

Abstract Background The timing of enrolment following an acute coronary syndrome (ACS) may influence cardiovascular (CV) outcomes and potentially treatment effect in clinical trials. Using a large contemporary trial in patients with type 2 diabetes mellitus (T2DM) post-ACS, we examined the impact of timing of enrolment on subsequent CV outcomes. Methods EXAMINE was a randomized trial of alogliptin versus placebo in 5380 patients with T2DM and a recent ACS. The primary outcome was a composite of CV death, non-fatal myocardial infarction [MI], or non-fatal stroke. The median follow-up was 18 months. In this post hoc analysis, we examined the occurrence of subsequent CV events by timing of enrollment divided by tertiles of time from ACS to randomization: 8–34, 35–56, and 57–141 days. Results Patients randomized early (compared to the latest times) had less comorbidities at baseline including a history of heart failure (HF; 24.7% vs. 33.0%), prior coronary artery bypass graft (9.6% vs. 15.9%), or atrial fibrillation (5.9% vs. 9.4%). Despite the reduced comorbidity burden, the risk of the primary outcome was highest in patients randomized early compared to the latest time (adjusted hazard ratio [aHR] 1.47; 95% CI 1.21–1.74) (Figure 1). Similarly, patients randomized early had an increased risk of recurrent MI (aHR 1.51; 95% CI 1.17–1.96) and HF hospitalization (1.49; 95% CI 1.05–2.10). Conclusion In a contemporary cohort of T2DM with a recent ACS, early randomization following the ACS increases the risk of CV events including recurrent MI and HF hospitalization. This should be taken into account when designing future clinical trials. Figure 1 Funding Acknowledgement Type of funding source: Private grant(s) and/or Sponsorship. Main funding source(s): Takeda Pharmaceutical


2021 ◽  
Vol 10 (Supplement_1) ◽  
Author(s):  
HY Wang ◽  
R Zhang ◽  
ZX Cai ◽  
KF Dou

Abstract Funding Acknowledgements Type of funding sources: None. Background Recent emphasis on reduced duration and/or intensity of antiplatelet therapy following PCI irrespective of indication for PCI may fail to account for the substantial risk of subsequent nontarget lesion events in acute coronary syndrome (ACS) patients. This study sought to investigate the benefits and risks of extended-term (>12-month) DAPT as compared with short-term DAPT in high-risk "TWILIGHT-like" ACS patients undergoing PCI. Methods All consecutive patients fulfilling the "TWILIGHT-like" criteria undergoing PCI from January 2013 to December 2013 were identified from the prospective Fuwai PCI Registry. High-risk "TWILIGHT-like" patients were defined by at least 1 clinical and 1 angiographic feature based on TWILIGHT trial selection criteria. The present analysis evaluated 4,875 high-risk "TWILIGHT-like" patients with ACS who were event-free at 12 months after PCI. The primary outcome was the composite of all-cause death, myocardial infarction (MI), or stroke at 30 months while BARC type 2, 3, or 5 bleeding was key secondary outcome. Results Extended DAPT compared with shorter DAPT reduced the composite outcome of all-cause death, MI, or stroke by 63% (1.5% vs. 3.8%; HRadj: 0.374, 95% CI: 0.256 to 0.548; HRmatched: 0.361, 95% CI: 0.221-0.590). The HR for cardiovascular death was 0.049 (0.007 to 0.362) and that for MI 0.45 (0.153 to 1.320) and definite/probable stent thrombosis 0.296 (0.080-1.095) in propensity-matched analyses. Rates of BARC type 2, 3, or 5 bleeding (0.9% vs. 1.3%; HRadj: 0.668 [0.379 to 1.178]; HRmatched: 0.721 [0.369-1.410]) did not differ significantly in patients treated with DAPT > 12-month or DAPT ≤ 12-month. The effect of long-term DAPT on primary and key secondary outcome across the proportion of ACS patients with 1-3, 4-5, or 6-9 risk factors showed a consistent manner (Pinteraction > 0.05). Conclusion Among high-risk "TWILIGHT-like" patients with ACS after PCI, long-term DAPT reduced ischemic events without increasing clinically meaningful bleeding events as compared with short-term DAPT, suggesting that extended DAPT might be considered in the treatment of ACS patients who present with a particularly higher risk for thrombotic complications. Abstract Figure.


Kardiologiia ◽  
2019 ◽  
Vol 59 (10) ◽  
pp. 5-13
Author(s):  
N. V. Lomakin ◽  
L. I. Buryachkovskaya ◽  
A. B. Sumarokov ◽  
Z. A. Gabbasov ◽  
A. N. Gerasimov

Aim: to assess relation ofhigh functional activity ofplatelets to prognosis ofunfavorable cardiovascular events in patients with Acute Coronary Syndrome (ACS).Materials. The study was based on the data of a single center ACS registry conducted in the Central Clinical Hospital of the Presidential Affairs Department of Russian Federation. Of 529 included patients in 425 without contraindications to double antiplatelet therapy we carried out analysis of dependence of 30 days level of unfavorable events on parameters of functional activity of platelets.Results. High on-treatment platelet reactivity (HTPR) was found to be associated with 3.5 increase of mortality in the group of patients with high cardiovascular risk. Logistic model of prognosis of unfavorable events based on multifactorial analysis of data from patients with measured platelet aggregation included chronic kidney disease, type of myocardial infarction, and degree ofplatelet aggregation >45%. C -statistic was equal to 0.77. We also present in this paper discussion of problems related to studying approaches to individualization of anti-aggregation therapy in real clinical practice and problems of organization ofsimilar studies.Conclusion. The study showed that patients with ACS increased platelet aggregation, as well as chronic kidney disease and type 2 MI are associated with a 30 day prognosis of adverse events.


2019 ◽  
Vol 72 (1) ◽  
pp. 137-141
Author(s):  
Olga Wajtryt ◽  
Tadeusz M Zielonka ◽  
Aleksandra Kaszyńska ◽  
Andrzej Falkowski ◽  
Katarzyna Życińska

Kounis syndrome or allergic myocardial infarction is an acute coronary syndrome in the course of an allergic reaction. In allergic patients in response to a specific condition - nourishment, inhalation, environmental substances, drug or insect bite there is an allergic reaction involving many different cells and mediators that can cause coronary artery spasm or initiate the process of rupture and activation of atherosclerotic plaque resulting in acute coronary syndrome. The paper describes a case of a young man with allergy to pollen and confirmed sensitization to nuts, who developed a full-blown anaphylactic shock after eating the nut mix and experienced a rapidly passing acute coronary syndrome with troponin up to 4.7 μg/L. An increased concentration of tryptase (15 μg/L), total IgE (> 3,000 IU/mL) and specific anti-nut IgE (55.1 kUA/L) were found. Based on the course of the disease and the results of allergic and cardiac tests, allergic type 1 myocardial infarction, i.e. caused by coronary artery spasm, was diagnosed. During the hospitalization, the patient’s condition improved quickly and after a few days he left the hospital without the signs of permanent damage to the heart muscle.


2021 ◽  
pp. 1-3
Author(s):  
Emrah Erdogan ◽  
Murat Cap ◽  
Gorkem Kus ◽  
Cem Gokhan ◽  
Yakup Kilic

Abstract Allergic reactions related to drug use is a common entity presenting often from minor urticaria to life-threatening anaphylactoid reactions. A common but easily overlooked diagnosis, Kounis syndrome, is an established hypersensitivity coronary disorder induced by drugs, foods, environmental factors, and coronary stents that can present in the same way as non-allergy-induced acute coronary syndrome. Here within, we present a unique case of dual presentation of Kounis syndrome and prolonged QTc in a young patient after a single dose of Domperidone and Lansoprazole.


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