scholarly journals Clinical profile of patients with acute coronary syndrome and its association with biomarker troponin I

2018 ◽  
Vol 5 (2) ◽  
pp. 433
Author(s):  
Hemant S. Joshi ◽  
Samil Sajal ◽  
Nirmit V. Yagnik ◽  
Y. K. Bolya

Background: In patients with acute coronary syndromes, it is desirable to identify a sensitive serum marker that is closely related to the degree of myocardial damage, provides prognostic information, and can be measured rapidly. Author studied the clinical profile of patients with Acute MI and its relation with troponin I level.Methods: In this prospective study, 65 patients admitted with Acute MI were studied. Study patients were divided in Troponin I positive and Troponin I negative group. Patients were followed up to discharge or death in the hospital.Results: Most common symptom present in the patients with Acute Coronary Syndrome was chest pain (94%) and most common risk factor was dyslipidaemia (72.3%). Most common complication was recurrent angina (72.3%). Out of total patients with significant CAD, almost 70 % belong to Troponin I positive group and it is statistically highly significant (p<0.05). Total 30 patients (46.2%) have more than 10 episodes of angina in our study. There is statistically significant association between number of angina episode and Troponin I positivity (p<0.05). Out of total deaths, 73.3% have occurred among Troponin I positive study patients and it is statistically significant (p<0.05).Conclusions: In patients with acute coronary syndromes, cardiac troponin I levels provide useful prognostic information and permit the early identification of patients with an increased risk of death.  

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Michael W Weber ◽  
Eva Keil ◽  
Michael Stanisch ◽  
Holger Nef ◽  
Helge Moellmann ◽  
...  

Background BNP und NT-proBNP provide prognostic information in patients with acute coronary syndromes (ACS). Even though it is generally accepted, that gender, age and atrial fibrillation are important determinants for BNP respectively NT-proBNP values, there is no data available evaluating the impact of those factors on the predictive value of those biomarkers. Therefore it was our aim to evaluate the predictive value of NT-proBNP for mortality after an ACS in association to gender, age and rhythm Methods and results We included 1123 consecutive patients (age 64±12 years; 342 females) with an ACS within the last 48 hours. Follow up data after median of 204 days were available for 1115 (99%) patients. During the follow up 77 (6.8%) patients died. NT-proBNP values on admission were higher in patients who deceased compared to those who survived (2047 (576 –5624) pg/ml vs. 465 (127–1519) pg/ml; p<0,001). The AUC of the ROC curve for NT-proBNP as a predictor for mortality was 0.714 (p<0.001) and an optimised cut-off value of 1815 pg/ml could be calculated. Patients with NT-proBNP above this cut-off had a significantly higher mortality rate (16% vs. 4%; p<0,001; Log Rank 48; p<0,001)). Even though patients with AF had higher NT-proBNP values as those patients with SR (1952 (770 – 4070) pg/ml vs. 452 (121–1492) pg/ml) NT-proBNP at the same cut-off value of 1815 pg/ml was highly discriminative for mortality (27.9% vs. 7.5%; p<0.022; Log Rank 5.7; p=0,017). Patients with an age above 65 years had higher NT-proBNP values as compared to patients younger than 65 years (894 (255–2642) pg/ml vs. 279 (75–945) pg/ml; p<0,001). However the predictive value of NT-proBNP in both age groups was comparable. Women had higher NT-proBNP values as compared to men (966 (237–2549) pg/ml vs. 407 (102–1273) pg/ml; p<0,001). But in dissimilarity, in women NT-proBNP values above 1815 pg/ml were not associated with a higher mortality and thus were without predictive value (10,6% vs. 6,8%; p<0,304; Log Rank 1,556; p<0,212). Conclusion Gender, age and rhythm are important determinants for NT-proBNP values of patients presenting with an ACS. However, only gender had impact on the predictive value of NT-proBNP for mortality. In women cut-off values need to be adopted.


2021 ◽  
Author(s):  
Marco G Del Buono ◽  
Rocco A Montone ◽  
Giulia Iannaccone ◽  
Riccardo Rinaldi ◽  
Giulia La Vecchia ◽  
...  

Over the last decades, inflammation proved to play a pivotal role in atherosclerotic plaque formation, progression and destabilization. Several studies showed that the patients presenting with acute coronary syndrome are at increased risk of adverse cardiovascular events at both short- and long-term follow-up. Results from different clinical trials highlighted that a residual inflammatory risk exist and targeting inflammation is a successful strategy in selected cases associated to an increased inflammatory burden. Recently, the optimization of intracoronary and multimodality imaging allowed to also assess the entity of local inflammation, thus encouraging the individuation of plaque characteristics that portend a higher risk of future cardiovascular events. In this short review, we aim to highlight the role of systemic and local inflammation in acute coronary syndromes, to provide a summarized overview of the possible medical strategies applicable in selected cases and to underline the diagnostic and prognostic potential of multimodality imaging.


2019 ◽  
Vol 46 (11) ◽  
pp. 1509-1514 ◽  
Author(s):  
Valérie Leclair ◽  
John Svensson ◽  
Ingrid E. Lundberg ◽  
Marie Holmqvist

Objective.Evidence suggests an increased risk of cardiovascular (CV) diseases, including acute coronary syndrome (ACS), in idiopathic inflammatory myopathies (IIM). The aim of this study was to investigate the risk of ACS in an incident IIM cohort compared to the general Swedish population.Methods.A cohort of 655 individuals with incident IIM and 6813 general population comparators were identified from national registries. IIM subjects were diagnosed from 2002 to 2011. Followup started at IIM diagnosis and corresponding date in the general population. ACS, CV comorbidities, and CV risk factors were defined using International Classification of Diseases codes. Incidence rates including 95% CI were calculated. Cox proportional hazards models were used to compare the risk of ACS in patients with IIM and the general population. The competing risk of death was accounted for using competing risk regression models.Results.The incidence rate of ACS in IIM was higher than in the general population, particularly within the first year of diagnosis and in older individuals. The overall ACS incidence rate in IIM was 15.6 (95% CI 11.7–20.4) per 1000 person-years, with an HR of 2.4 (95% CI 1.8–3.2) compared with the general population. When accounting for the competing risk of death, the risk of ACS in IIM remained increased with a cumulative incidence of 7% at 5 years compared to 3.3% in the general population.Conclusion.IIM individuals are at higher risk of ACS, particularly within the first year after diagnosis.


2017 ◽  
Vol 119 (8) ◽  
pp. e15
Author(s):  
Zafer Buyukterzi ◽  
Ummugulsum Can ◽  
Mehmet Sertac Alpaydin ◽  
Asuman Guzelant ◽  
Sukru Karaarslan

Author(s):  
Evangelos Giannitsis ◽  
Hugo A Katus

Biomarker testing in the evaluation of a patient with acute chest pain is best established for cardiac troponins that allow the diagnosis of myocardial infarction, risk estimation of short- and long-term risk of death and myocardial infarction, and guidance of pharmacological therapy, as well as the need and timing of invasive strategy. Newer, more sensitive troponin assays have become commercially available and have the capability to detect myocardial infarction earlier and more sensitively than standard assays, but they are hampered by a lack of clinical specificity, i.e. the ability to discriminate myocardial ischaemia from myocardial necrosis not related to ischaemia such as myocarditis, pulmonary embolism, or decompensated heart failure. Strategies to improve clinical specificity (including strict adherence to the universal myocardial infarction definition and the need for serial troponin measurements to detect an acute rise and/or fall of cardiac troponin) will improve the interpretation of the increasing number of positive results. Other biomarkers of inflammation, activated coagulation/fibrinolysis, and increased ventricular stress mirror different aspects of the underlying disease activity and may help to improve our understanding of the pathophysiological mechanisms of acute coronary syndromes. Among the flood of new biomarkers, there are several novel promising biomarkers, such as copeptin that allows an earlier rule-out of myocardial infarction in combination with cardiac troponin, whereas MR-proANP and MR-proADM appear to allow a refinement of cardiovascular risk. GDF-15 might help to identify candidates for an early invasive vs conservative strategy. A multi-marker approach to biomarkers becomes more and more attractive, as increasing evidence suggests that a combination of several biomarkers may help to predict individual risk and treatment benefits, particularly among normal-troponin subjects. Future goals include the acceleration of rule-in and rule-out of patients with suspected acute coronary syndrome, in order to shorten lengths of stay in the emergency department, and to optimize patient management and the use of health care resources. New algorithms using high-sensitivity cardiac troponin assays at low cut-offs alone, or in combination with additional biomarkers, allow to establish accelerated rule-out algorithms within 1 or 2 hours.


Author(s):  
Eric Durand ◽  
Aurès Chaib ◽  
Etienne Puymirat ◽  
Nicolas Danchin

Patients presenting at the emergency department with acute chest pain and suspected to represent an acute coronary syndrome were classically admitted as routine to the cardiology department, resulting in expensive and time-consuming evaluations. However, 2-5% of patients with acute coronary syndromes were discharged home inappropriately, resulting in increased mortality. To address the inability to exclude the diagnosis of acute coronary syndrome, chest pain units were developed, particularly in the United States. These provide an environment where serial electrocardiograms, cardiac biomarkers, and provocative testing can be performed to confirm or rule out an acute coronary syndrome. Eligible candidates include the majority of patients with non-diagnostic electrocardiograms. The results have been impressive; chest pain units have markedly reduced adverse events, while simultaneously increasing the rate of safe discharge by 36%. Despite evidence to suggest that care in chest pain units is more effective for such patients, the percentage of emergency or cardiology departments setting up chest pain units remains low in Europe.


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