Abstract 16639: Low Yield of Additional Non-invasive Testing in Moderate Worst Stenosis by cCTA in Acute Chest Pain Patients - Results From a Clinical ED cCTA Registry

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Sumbal A Janjua ◽  
Harshna V Vadvala ◽  
Pedro V Staziaki ◽  
Richard A Takx ◽  
Anand M Prabhakar ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Chest Pain ◽  
Unstable Angina ◽  
Acute Chest Pain ◽  
Left Ventricular ◽  
Fractional Flow ◽  
Coronary Syndrome ◽  
Non Invasive ◽  
Lipid Rich Plaque ◽  
Pain Patients

Introduction: Coronary computed tomography angiography (cCTA) allows efficient triage of low-intermediate risk patients with suspected acute coronary syndrome (ACS); appropriate management of patients with moderate stenosis by cCTA is unknown. We evaluated the yield of downstream testing in moderate stenosis patients in a clinical ED cCTA registry. Methods: All consecutive ED patients with acute chest pain undergoing cCTA as part of routine care between October 2012 and July 2014 were screened. Patients with moderate as their worst stenosis (50-69% stenosis) on cCTA were included. Plaque characteristics, resting left ventricular function (by cCTA), results of any functional downstream non-invasive testing, invasive coronary angiography (ICA) and interventions, and discharge diagnosis were reported. ACS was defined as acute myocardial infarction (MI) or unstable angina pectoris (UAP) and adjudicated by an independent committee. Ischemia was defined as clear, territorial abnormality by myocardial perfusion scintigraphy imaging (MPI) or rest or stress echocardiogram, significant dynamic ST-T shift by exercise treadmill test (ETT) and stenosis >70% on ICA or fractional flow reserve (FFR) <0.75. Results: 586 patients underwent cCTA, with 7.2% (n=42) deemed moderate stenosis. Rate of ACS was 14.2% (n=6) with all adjudicated as UAP. Of these, 83% had stenosis caused by lipid-rich plaque; 33% had wall motion abnormalities on cCTA. The majority (n=28; 66%) underwent downstream non-invasive testing. Overall, n=2 (6%) of the non-invasive tests were positive for ischemia while n=3 (42%) of the invasive tests were diagnosed as positive for ischemia (all revascularized) (Figure 1). Conclusions: Unstable angina but not myocardial infarction is frequent among acute chest pain patients with moderate stenosis by cCTA. cCTA findings of lipid-rich plaque and resting functional abnormalities had a relatively higher yield vs. other non-invasive tests to detect ischemia.

Plasma Fibrinopeptide A and Beta-Thromboglobulin in Patients with Chest Pain

1983 ◽  
Vol 50 (02) ◽  
pp. 541-542 ◽  
Author(s):  
J T Douglas ◽  
G D O Lowe ◽  
C D Forbes ◽  
C R M Prentice
Keyword(s):  
Myocardial Infarction ◽  
Chest Pain ◽  
Unstable Angina ◽  
Plasma Levels ◽  
Thrombin Generation ◽  
Acute Chest Pain ◽  
Fibrinopeptide A ◽  
Control Hospital ◽  
Hospital Patients ◽  
Platelet Release

SummaryPlasma levels of β-thromboglobulin (BTG) and fibrinopeptide A (FPA), markers of platelet release and thrombin generation respectively, were measured in 48 patients within 3 days of admission to hospital for acute chest pain. Twenty-one patients had a confirmed myocardial infarction (MI); 15 had unstable angina without infarction; and 12 had chest pain due to noncardiac causes. FPA and BTG were also measured in 23 control hospital patients of similar age. Mean plasma BTG levels were not significantly different in the 4 groups. Mean plasma FPA levels were significantly higher in all 3 groups with acute chest pain when compared to the control subjects (p < 0.01), but there were no significant differences between the 3 groups. Increased FPA levels in patients with acute chest pain are not specific for myocardial infarction, nor for ischaemic chest pain.

scholarly journals Non-invasive fractional flow reserve (FFRCT) in the evaluation of acute chest pain – Concepts and first experiences

2021 ◽  
Vol 138 ◽  
pp. 109633
Author(s):  
Andreas M. Fischer ◽  
Marly van Assen ◽  
U. Joseph Schoepf ◽  
Andrew J. Matuskowitz ◽  
Akos Varga-Szemes ◽  
...  
Keyword(s):  
Chest Pain ◽  
Fractional Flow Reserve ◽  
Acute Chest Pain ◽  
Fractional Flow ◽  
Non Invasive ◽  
Flow Reserve

scholarly journals Elevated Plasma IL-37, IL-18, and IL-18BP Concentrations in Patients with Acute Coronary Syndrome

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Qingwei Ji ◽  
Qiutang Zeng ◽  
Ying Huang ◽  
Ying Shi ◽  
Yingzhong Lin ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Acute Coronary Syndrome ◽  
Angina Pectoris ◽  
Unstable Angina ◽  
Left Ventricular ◽  
Unstable Angina Pectoris ◽  
Left Ventricular Ejection ◽  
Ventricular Ejection Fraction ◽  
Coronary Syndrome

Objective.More recently, evidence showed that the novel anti-inflammatory cytokine interleukin- (IL-) 37 was expressed in the foam-like cells of atherosclerotic coronary and carotid artery plaques, suggesting that IL-37 is involved in atherosclerosis-related diseases. However, the plasma levels of IL-37 in patients with acute coronary syndrome (ACS, including unstable angina pectoris and acute myocardial infarction) have yet to be investigated.Methods.Plasma IL-37, IL-18, and IL-18BP levels were measured in 50 patients with stable angina pectoris (SAP), 75 patients with unstable angina pectoris (UAP), 67 patients with acute myocardial infarction (AMI), and 65 control patients.Results.The plasma IL-37, IL-18, and IL-18BP levels were significantly increased in ACS patients compared to SAP and control patients. A correlation analysis showed that the plasma biomarker levels were positively correlated with each other and with the levels of C-reactive protein (CRP),N-terminal probrain natriuretic peptide (NT-proBNP), and left ventricular end-diastolic dimension (LVEDD) but negatively correlated with left ventricular ejection fraction (LVEF). Furthermore, the plasma IL-37, IL-18, and IL-18BP had no correlation with the severity of the coronary artery stenosis.Conclusions.The results indicate that the plasma IL-37 levels are associated with the onset of ACS.

scholarly journals Predictive Value of a 6-Hour Ecg/Troponin Protocol in Patients with Chest Pain

2003 ◽  
Vol 10 (3) ◽  
pp. 146-152 ◽  
Author(s):  
CY Man ◽  
PA Cameron ◽  
WL Cheung
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Acute Coronary Syndrome ◽  
Chest Pain ◽  
Troponin T ◽  
Low Risk ◽  
Chinese Patients ◽  
Initial Assessment ◽  
Coronary Syndrome ◽  
Pain Patients

Introduction Patients presenting with chest pain and considered to be at low risk of acute coronary syndrome (ACS) may still have coronary heart disease. The potential risk of sudden cardiac death due to arrhythmias or progression to acute myocardial infarction still exists. To minimize this risk, we have designed a 6-hour risk stratification protocol for patients with a low risk of acute myocardial infarction on initial assessment in the Accident and Emergency Department (AED). Materials & Methods This was a retrospective observational study with the aim of determining the risk of adverse cardiovascular events in chest pain patients attending an AED. These patients were subject to an ECG and cardiac troponin T tests (cTnT) at 0 hour and at 6 hours (if the two tests were negative at 0 hour), and were put under observation in the AED observation ward during the same period. The main outcome measures were adverse cardiac events at 30 days. Results A total of 371 Chinese patients considered to have low risk of ACS were recruited into the protocol. Troponin T tested positive in 19 patients (5.1%) at 0 hour and 8 patients (2.2%) at 6 hours. Amongst the 332 patients that were discharged directly from the AED, there were no re-admissions for cardiac-related deaths, acute myocardial infarction, arrhythmia or heart failure. Conclusion The 6-hour ECG and troponin T observation protocol is a useful tool to allow safe discharge of chest pain patients who are at low risk of acute coronary syndrome.

scholarly journals Copeptin Does Not Add Diagnostic Information to High-Sensitivity Troponin T in Low- to Intermediate-Risk Patients with Acute Chest Pain: Results from the Rule Out Myocardial Infarction by Computed Tomography (ROMICAT) Study

2011 ◽  
Vol 57 (8) ◽  
pp. 1137-1145 ◽  
Author(s):  
Mahir Karakas ◽  
James L Januzzi ◽  
Julia Meyer ◽  
Hang Lee ◽  
Christopher L Schlett ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Chest Pain ◽  
Predictive Value ◽  
Troponin T ◽  
Cardiac Computed Tomography ◽  
Acute Chest Pain ◽  
High Sensitivity ◽  
Left Ventricular ◽  
Intermediate Risk ◽  
Coronary Syndrome

PURPOSE Copeptin, a stable peptide derived from the AVP precursor, has been linked to presence and severity of myocardial ischemia. We sought to evaluate the predictive value of copeptin and its incremental value beyond that of high-sensitivity cardiac troponin T (hs-cTnT) in patients with acute chest pain and low to intermediate risk for acute coronary syndrome (ACS). METHODS We recruited patients who presented with acute chest pain to the emergency department and had a negative initial conventional troponin T test (&lt;0.03 μg/L). In all patients, hs-cTnT and copeptin measurements were taken. Each patient also underwent cardiac computed tomography (CT) and coronary angiography. RESULTS Baseline copeptin concentrations, in contrast to hs-cTnT, were not significantly higher in patients with ACS than in those without (P = 0.24). hs-cTnT showed an earlier rise in patients with ACS than copeptin, when analyses were stratified by time. A copeptin concentration ≥7.38 pmol/L had a negative predictive value (NPV) of 94% and a sensitivity of 51%, whereas hs-cTnT (≥13.0 pg/mL) had a NPV of 96% and a sensitivity of 63%. The combination of copeptin and hs-cTnT resulted in a lower diagnostic accuracy than hs-cTnT alone. Finally, on cardiac CT, copeptin concentrations were not associated with coronary artery morphology, although they were related to the presence of left ventricular dysfunction (P = 0.02). CONCLUSIONS Among patients with acute chest pain and low to intermediate risk for ACS, copeptin concentrations are not independently predictive of ACS and do not add diagnostic value beyond that of hs-cTnT measurements.

scholarly journals Evaluation and comparison of six GRACE models to stratify undifferentiated chest pain at the emergency department

2019 ◽  
Author(s):  
Wen Zheng ◽  
Guangmei Wang ◽  
Jingjing Ma ◽  
Shuo Wu ◽  
He Zhang ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Emergency Department ◽  
Chest Pain ◽  
Goodness Of Fit ◽  
Acute Chest Pain ◽  
Public Hospitals ◽  
Cardiac Events ◽  
Goodness Of Fit Test ◽  
Coronary Syndrome ◽  
Grace Score

Abstract Background The Global Registry of Acute Coronary Events (GRACE) score is recommended for stratifying chest pain. However, there are six formulas used to calculate the GRACE score for different outcomes of acute coronary syndrome (ACS), including death (Dth) or composite of death and myocardial infarction (MI), during in hospital (IH), in 6 months after discharge (OH6m) or from admission to 6 months later (IH6m). The more appropriate one for stratification of undifferentiated chest pain remains unclear. We aimed to provide firstly comprehensive evaluation and comparison of six GRACE models to predict 30-day major adverse cardiac events (MACE) in acute chest pain at the emergency department (ED). Methods Patients with acute chest pain were consecutively recruited from August 24, 2015 to September 30, 2017 in EDs of two public hospitals in China. The primary outcome was MACE within 30 days, including death, acute myocardial infarction (MI), emergency revascularization, cardiac arrest and cardiogenic shock. GRACE scores were calculated retrospectively using the prospectively obtained data. Correlation, calibration, discrimination and reclassification of six GRACE models were evaluated. Results A total of 2886 patients were analyzed, with 590 (20.4%) patients getting outcomes. The GRACE (IH6mDthMI), GRACE (IHDthMI), GRACE (IHDth), GRACE (IH6mDth), GRACE (OH6mDth) and GRACE (OH6mDthMI) showed positive linear correlation with actual MACE rates (r≥0.568, p<0.001), first two of which exerted very strong relationships (r>0.9). All these models had good calibration (Hosmer-Lemeshow goodness-of-fit test, p≥0.073) except GRACE (IHDthMI) (p<0.001). The corresponding c-statistics were 0.82(0.81,0.83), 0.83(0.81,0.84), 0.75(0.73,0.76), 0.73(0.72,0.75), 0.72(0.70,0.73) and 0.70(0.68,0.71). Improvement in AUC, NRI and IDI (p<0.001) represented that GRACE (IH6mDthMI) and GRACE (IHDthMI) were superior to other four models in discrimination and reclassification. Conclusions The GRACE (IH6mDthMI) and GRACE (IHDthMI) outperformed other GRACE models in discriminating high or low-risk of 30-day MACE in patients with chest pain. The reasonable application of appropriate GRACE models should be recommended on stratification of undifferentiated chest pain presenting to the ED.

scholarly journals Evaluation and comparison of six GRACE models for the stratification of undifferentiated chest pain in the emergency department

2020 ◽  
Author(s):  
Wen Zheng ◽  
Guangmei Wang ◽  
Jingjing Ma ◽  
Shuo Wu ◽  
He Zhang ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Emergency Department ◽  
Chest Pain ◽  
Comprehensive Evaluation ◽  
Acute Chest Pain ◽  
Public Hospitals ◽  
Cardiac Events ◽  
Coronary Syndrome ◽  
Coronary Events ◽  
Grace Score

Abstract Background: The Global Registry of Acute Coronary Events (GRACE) score is recommended for stratifying chest pain. However, there are six formulas used to calculate the GRACE score for different outcomes of acute coronary syndrome (ACS), including death (Dth) or composite of death and myocardial infarction (MI), while in hospital (IH), within 6 months after discharge (OH6m) or from admission to 6 months later (IH6m). We aimed to perform the first comprehensive evaluation and comparison of six GRACE models to predict 30-day major adverse cardiac events (MACEs) in patients with acute chest pain in the emergency department (ED). Methods: Patients with acute chest pain were consecutively recruited from August 24, 2015 to September 30, 2017 from the EDs of two public hospitals in China. The 30-day MACEs included death, acute myocardial infarction (AMI), emergency revascularization, cardiac arrest and cardiogenic shock. The correlation, calibration, discrimination, reclassification and diagnostic accuracy at certain cutoff values of six GRACE models were evaluated. Comparisons with the History, ECG, Age, Risk Factors, and Troponin (HEART) and Thrombolysis in Myocardial Infarction (TIMI) scores were conducted. Results: A total of 2886 patients were analyzed, with 590 (20.4%) patients experiencing outcomes. The GRACE(IHDthMI), GRACE(IH6mDthMI), GRACE(IHDth), GRACE(IH6mDth), GRACE(OH6mDth) and GRACE(OH6mDthMI) showed positive linear correlations with the actual MACE rates (r≥0.568, p<0.001). All these models had good calibration (Hosmer-Lemeshow test, p≥0.073) except GRACE(IHDthMI) (p<0.001). The corresponding C-statistics were 0.83(0.81,0.84), 0.82(0.81,0.83), 0.75(0.73,0.76), 0.73(0.72,0.75), 0.72(0.70,0.73) and 0.70(0.68,0.71), respectively, first two of which were comparable to HEART (0.82, 0.80-0.83) and superior to TIMI (0.71, 0.69-0.73). With a sensitivity ≥95%, GRACE(IHDthMI) ≤81 and GRACE(IH6mDthMI) ≤79 identified 868(30%) and 821(28%) patients as low risk, respectively, which were significantly better than other GRACEs and HEART ≤3(22%). With a specificity ≥95%, GRACE(IHDthMI) >186 and GRACE(IH6mDthMI) >161 could recognize 12% and 11% patients as high risk, which were greater than other GRACEs, HEART ≥8(9%) and TIMI ≥5(8%). Conclusions: In this Chinese setting, certain strengths of GRACE models beyond HEART and TIMI scores were still noteworthy for stratifying chest pain patients. The validation and reasonable application of appropriate GRACE models in the evaluation of undifferentiated chest pain should be recommended.

scholarly journals Σύγκριση της δοκιμασίας σύνδεσης κοβαλτίου - αλβουμίνης και του υπερηχογραφήματος καρδιάς στην διαγνωστική ασθενών με θωρακικό πόνο

2013 ◽  
Author(s):  
Ευαγγελία Κουντάνα
Keyword(s):  
Emergency Department ◽  
Chest Pain ◽  
Unstable Angina ◽  
Negative Predictive Value ◽  
Predictive Value ◽  
Stress Test ◽  
Acute Chest Pain ◽  
Developed Countries ◽  
Coronary Syndrome ◽  
Sensitivity Specificity

Cardiovascular disease is the leading cause of mortality in developed countries andplaces a massive burden on healthcare services. Thousands of patients visit every yearthe Emergency Department (ED) with acute chest pain and a considerable proportionhas an acute coronary syndrome (ACS). In most cases, the electrocardiogram and thecommonly used biomarkers are not helpful in the early diagnosis of myocardialischemia.ObjectiveTo assess the role of ischemia modified albumin (IMA), a novel cardiac biomarker, inexcluding unstable angina (UA) in patients visiting the ED with acute chest pain. Thepredictive value of serum IMA concentrations were evaluated in comparison toechocardiogram.MethodsWe studied 33 patients (84.8% males, age 59.8±10.8 years) who presented at theAccident and Emergency Department with acute chest pain lasting < 3 h, normal ornon-diagnostic electrocardiogram and normal serum troponin and CK-MB levels.Serum IMA levels were determined and a comprehensive echocardiographic studywas performed. All patients were admitted to our Department of Cardiology and thediagnosis of UA was established with exercise or thallium stress test or with coronaryangiography.ResultsFive patients were eventually diagnosed with UA. The area under the curve for thediagnosis of unstable angina based on serum IMA levels was 0.193 (95% confidenceinterval 0.047-0.339, p < 0.05). Serum IMA levels ≥ 31,95 IU/ml had a sensitivity,specificity, positive and negative predictive value for the diagnosis of UA of 40.0%,28.6%, 9.1% and 72.7%, respectively. The sensitivity, specificity, positive andnegative predictive value of echocardiography for the diagnosis of UA was 60.0%,89.3%, 50.0% and 92.6%, respectively.Conclusion: Assessment of serum IMA levels in patients presenting with suspectedUA has comparable negative predictive value with echocardiography for excludingthe diagnosis of UA. Therefore, this biomarker appears to be useful in the diagnosisand stratification of risk in patients with ACS.

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