scholarly journals Role of E-selectin for diagnosing myocardial injury in paediatric patients with mycoplasma pneumoniae pneumonia

2016 ◽  
Vol 54 (1) ◽  
pp. 49-54
Author(s):  
Ming-Hong Deng ◽  
Chun-Wang Lin ◽  
Yan-Na Sun ◽  
Xiang-Lin Zeng ◽  
Fang Wen
Keyword(s):  
Receiver Operating Characteristic ◽  
Mycoplasma Pneumoniae ◽  
Cardiac Troponin ◽  
Myocardial Injury ◽  
Operating Characteristic ◽  
Troponin I ◽  
Diagnostic Value ◽  
Healthy Children ◽  
Paediatric Patients ◽  
Mycoplasma Pneumoniae Pneumonia

Backgrounds Effects of myocardial injury on E-selectin remain unclear. Thus, we investigated the diagnostic value of E-selectin for myocardial injury in paediatric patients with mycoplasma pneumoniae pneumonia. Methods In this prospective and blinded clinical study, plasma E-selectin, cardiac troponin I, creatine kinase isoenzyme MB, interleukin-6 and tumor necrosis factor alpha concentrations were measured in paediatric patients with mycoplasma pneumoniae pneumonia (MPP group, n = 138). The control group comprised 120 healthy children. The definition of cardiac injury was based on cardiac troponin I or CK-MB (with or possibly without abnormal electrocardiogram evidence). Diagnostic value of E-selectin for myocardial injury was determined by analysing receiver operating characteristic curves. Results Among the 138 mycoplasma pneumoniae pneumonia patients, 40 patients were identified with myocardial injury, while 98 patients were identified without myocardial injury. Plasma E-selectin concentrations were: 40.22 ± 4.80 ng/mL, in patients with myocardial injury; 18.55 ± 2.16 ng/mL, in patients without myocardial injury and 12.39 ± 3.27 ng/mL, in healthy children. For the 40 patients identified with myocardial injury, area under the receiver operating characteristic curve value for plasma E-selectin concentrations was 0.945 (95% CI: 0.899–0.991), and optimal diagnostic cut-off value was 29.93 ng/mL (positive likelihood ratio = 72.5). Conclusion E-selectin was shown to be an effective index for myocardial injury in paediatric patients with mycoplasma pneumoniae pneumonia, and its role in other causes of myocardial injury warrants further investigation.

scholarly journals Evaluation of variation in coagulation among children with Mycoplasma pneumoniae pneumonia: a case–control study

2017 ◽  
Vol 45 (6) ◽  
pp. 2110-2118 ◽  
Author(s):  
Tianhua Li ◽  
Haiying Yu ◽  
Weina Hou ◽  
Zhiyong Li ◽  
Chunfang Han ◽  
...  
Keyword(s):  
Mycoplasma Pneumoniae ◽  
Operating Characteristic ◽  
Case Control Study ◽  
Case Control ◽  
Healthy Children ◽  
Thrombin Time ◽  
Receiver Operating Characteristic Curves ◽  
Mycoplasma Pneumoniae Pneumonia ◽  
Control Study ◽  
D Dimer

Objective Acute organ embolism in children with Mycoplasma pneumoniae pneumonia (MPP) has been reported, but changes in coagulation are unclear. This study aimed to investigate changes in coagulation in children with MPP. Methods A total of 185 children with MMP (cases) and 117 healthy children (controls) were recruited. We measured prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time (TT), and plasma fibrinogen (FIB) and D-dimer levels. Results Plasma FIB (3.39 ± 0.96 g/L vs 2.93 ± 0.6 6g/L, t = 4.50) and D-dimer (326.45 ± 95.62mg/L vs 263.93 ± 103.32mg/L, t=5.36) in MPP children were higher than controls and PT (9.54 ± 4.97S vs 11.48 ± 5.96S, t=3.05) and APTT (31.41 ± 12.01S vs 38.38 ± 11.72S, t=4.95) were shorter than controls. FIB, D-dimer, PT, and APTT were not different between the high IgM-titre and low-titre groups. The areas under the receiver operating characteristic curves in cases and controls for plasma FIB and D-dimer levels were 0.654 (95% confidence interval [CI], 0.593–0.716, P = 0.031) and 0.682 (95% CI, 0.619–0.744, P = 0.032), respectively. Conclusions Children with MPP have a higher risk of blood coagulation and thrombosis. Controlling these problems should be considered as soon as possible.

scholarly journals Use of high-sensitivity cardiac troponin I levels for early diagnosis of myocardial injury after neonatal asphyxia

2019 ◽  
Vol 47 (7) ◽  
pp. 3234-3242 ◽  
Author(s):  
Li Jiang ◽  
Yuning Li ◽  
Zhi Zhang ◽  
Lixing Lin ◽  
Xiaoli Liu
Keyword(s):  
Early Diagnosis ◽  
Cardiac Troponin ◽  
Myocardial Injury ◽  
Troponin I ◽  
Early Stage ◽  
High Sensitivity ◽  
Diagnostic Value ◽  
Cardiac Troponin I ◽  
Roc Curve Analysis ◽  
Neonatal Asphyxia

Objective Low-cost diagnostic and prognostic biomarkers could help guide clinical management of neonates with myocardial injury after asphyxia. This study aimed to assess the utility of creatine kinase (CK)-MB, high-sensitivity cardiac troponin I (hs-cTnI), brain natriuretic peptide (BNP), and myoglobin in the early diagnosis of myocardial injury following neonatal asphyxia. Methods Eighteen neonates with asphyxia and myocardial injury, 22 neonates with asphyxia and no myocardial injury, and 19 neonates without asphyxia (controls) were enrolled consecutively at the Neonatology Department, First Hospital of Lanzhou University (August 2013 to December 2014). Serum CK-MB, hs-cTnI, BNP, and myoglobin levels were evaluated at 12 hours and 7 days after birth. Their diagnostic value for myocardial injury was assessed by receiver operating characteristic (ROC) curve analysis. Results Levels of all four markers were higher in neonates with asphyxia and myocardial injury than in neonates with asphyxia and no myocardial injury or controls 12 hours after birth. The marker hs-cTnI had the highest diagnostic value. Using a cutoff value of 0.087 µg/L for hs-cTnI, the sensitivity, specificity, and diagnostic accuracy for asphyxia-induced myocardial injury were 55.6%, 95.5%, and 77.5%, respectively. Conclusions Serum hs-cTnI levels can predict myocardial injury caused by neonatal asphyxia at an early stage.

scholarly journals A Novel Graphene-Based Nanomaterial Modified Electrochemical Sensor for the Detection of Cardiac Troponin I

2021 ◽  
Vol 9 ◽  
Author(s):  
Jing Li ◽  
Shenwei Zhang ◽  
Li Zhang ◽  
Yu Zhang ◽  
Hua Zhang ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Electrochemical Sensor ◽  
Cardiac Troponin ◽  
Myocardial Injury ◽  
Troponin I ◽  
High Sensitivity ◽  
High Specificity ◽  
Diagnostic Value ◽  
Cardiac Troponin I

Acute myocardial infarction has a high clinical mortality rate. The initial exclusion or diagnosis is important for the timely treatment of patients with acute myocardial infarction. As a marker, cardiac troponin I (cTnI) has a high specificity, high sensitivity to myocardial injury and a long diagnostic window. Therefore, its diagnostic value is better than previous markers of myocardial injury. In this work, we propose a novel aptamer electrochemical sensor. This sensor consists of silver nanoparticles/MoS2/reduced graphene oxide. The combination of these three materials can provide a synergistic effect for the stable immobilization of aptamer. Our proposed aptamer electrochemical sensor can detect cTnl with high sensitivity. After optimizing the parameters, the sensor can provide linear detection of cTnl in the range of 0.3 pg/ml to 0.2 ng/ml. In addition, the sensor is resistant to multiple interferents including urea, glucose, myoglobin, dopamine and hemoglobin.

scholarly journals Misclassification of Myocardial Injury by a High-Sensitivity Cardiac Troponin I Assay

2021 ◽  
Author(s):  
Peter A. Kavsak ◽  
Shawn Mondoux ◽  
Andrew Worster ◽  
Janet Martin ◽  
Vikas Tandon ◽  
...  
Keyword(s):  
Cardiac Troponin ◽  
Myocardial Injury ◽  
Troponin I ◽  
High Sensitivity ◽  
Cardiac Troponin I

scholarly journals Longitudinal obesity exposure over two decades is associated with subclinical myocardial injury: the Nord-Trondelag Health Study

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M.N Lyngbakken ◽  
H Rosjo ◽  
K Hveem ◽  
T Omland
Keyword(s):  
Cardiac Troponin ◽  
Myocardial Injury ◽  
Troponin I ◽  
Linear Increase ◽  
Normal Weight ◽  
Public Institution ◽  
Health Study ◽  
Funding Source ◽  
Study Visit ◽  
Increased Risk

Abstract Background Obesity is associated with subclinical myocardial injury as quantified by concentrations of cardiac troponin, but whether excess weight history is associated with increased cardiac troponin I (cTnI) remains unclear. We aimed to explore the association of obesity with cTnI using different indices of cumulative obesity exposure. Methods We analyzed cTnI with a high-sensitivity assay in 14,157 participants with follow-up over two decades in the prospective observational Nord-Trøndelag Health (HUNT) Study at study visit 4 (2017–2019). All subjects were free from known cardiovascular disease at baseline, and we excluded subjects with BMI <18.5 kg/m2. BMI was assessed at study visit 2 (1995–1997), 3 (2006–2008) and 4, and we categorized participants as normal weight (BMI <25), overweight (BMI ≥25 to <30) and obesity (BMI ≥30). At each study visit, BMI was designated a score of 0 (normal weight), 1 (overweight) or 2 (obesity), totaling a score from 0 to 6. Cumulative obesity exposure was calculated as average BMI above 25 kg/m2 between visits multiplied by the time between visits (excess BMI years, kg/m2 × years). Results Median age at visit 4 was 64.1 (range 40.9 to 101.5) years and 60% were women. Concentrations of cTnI were detectable in 77.2% of study participants, and were median 2.2 (1.3 to 3.9) ng/L. There was a linear increase in cTnI with increasing BMI score (p for trend <0.001) and increasing BMI score was associated with increased risk of high cTnI (p for trend <0.001; Table 1). For every 100 excess BMI years, there was a 15.6 (95% CI, 13.0 to 18.2) % increase in cTnI at study visit 4 (Figure 1). Conclusion Cumulative obesity exposure is associated with a linear increase in cTnI, a highly sensitive index of subclinical myocardial injury, reflecting the detrimental effect of long standing obesity on cardiovascular health. Figure 1. BMI years and cTnI Funding Acknowledgement Type of funding source: Public Institution(s). Main funding source(s): South-Eastern Norway Regional Health Authority

scholarly journals Abnormal interhemispheric functional connectivity in patients with strabismic amblyopia: a resting-state fMRI study using voxel-mirrored homotopic connectivity

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Shuang Zhang ◽  
Gui-Ping Gao ◽  
Wen-Qing Shi ◽  
Biao Li ◽  
Qi Lin ◽  
...  
Keyword(s):  
Functional Connectivity ◽  
Receiver Operating Characteristic ◽  
Operating Characteristic ◽  
Brain Activity ◽  
Characteristic Curve ◽  
Clinical Manifestations ◽  
Resting State Fmri ◽  
Diagnostic Value ◽  
Functional Connections ◽  
Receiver Operating

Abstract Background Previous studies have demonstrated that strabismus amblyopia can result in markedly brain function alterations. However, the differences in spontaneous brain activities of strabismus amblyopia (SA) patients still remain unclear. Therefore, the current study intended to employthe voxel-mirrored homotopic connectivity (VMHC) method to investigate the intrinsic brain activity changes in SA patients. Purpose To investigate the changes in cerebral hemispheric functional connections in patients with SA and their relationship with clinical manifestations using the VMHC method. Material and methods In the present study, a total of 17 patients with SA (eight males and nine females) and 17 age- and weight-matched healthy control (HC) groups were enrolled. Based on the VMHC method, all subjects were examined by functional magnetic resonance imaging. The functional interaction between cerebral hemispheres was directly evaluated. The Pearson’s correlation test was used to analyze the clinical features of patients with SA. In addition, their mean VMHC signal values and the receiver operating characteristic curve were used to distinguish patients with SA and HC groups. Results Compared with HC group, patients with SA had higher VMHC values in bilateral cingulum ant, caudate, hippocampus, and cerebellum crus 1. Moreover, the VMHC values of some regions were positively correlated with some clinical manifestations. In addition, receiver operating characteristic curves presented higher diagnostic value in these areas. Conclusion SA subjects showed abnormal brain interhemispheric functional connectivity in visual pathways, which might give some instructive information for understanding the neurological mechanisms of SA patients.

Elevations of Troponin I after interventional cardiac catheterization

2001 ◽  
Vol 11 (4) ◽  
pp. 375-378 ◽  
Author(s):  
Prince J. Kannankeril ◽  
David F. Wax ◽  
Elfriede Pahl
Keyword(s):  
Cardiac Catheterization ◽  
Cardiac Troponin ◽  
Baseline Level ◽  
Myocardial Injury ◽  
Troponin I ◽  
Cardiac Troponin I ◽  
Specific Marker ◽  
Before And After ◽  
Baseline Sample

Background: Elevation of cardiac troponin I in the serum is a specific marker for myocardial injury. We measured levels of troponin I in the serum in children before and after cardiac catheterization to determine if this procedure was associated with an increase in levels of troponin. Methods: We enrolled patients under 21 years of age undergoing cardiac catheterization at our institution. A baseline sample of serum was drawn at the start of the procedure. Repeat samples were obtained immediately after, and six hours subsequent to the procedure. All samples were analyzed for cardiac troponin I using the Abbott AxSYM microparticle immunoassay system. Levels were considered normal (0–0.4 ng/ml) or elevated (>0.4ng/ml). Patients were excluded if the baseline level was elevated. Results: Levels of cardiac troponin I were elevated in the serum from 11 of 14 (79%) cases immediately after the procedure (p < 0.0001), and in 12 of 14 (86%) six hours later (p < 0.0001). Only 2 patients had recognized complications potentially causing myocardial injury. Conclusion: Levels of cardiac troponin I increase in the serum in a high proportion of children after cardiac catheterization. These elevations can be observed immediately, and are maintained for at least six hours. Our study suggests that cardiac catheterization, predominantly intervention, is associated with myocardial injury, even in the absence of complications.

Evaluation of Myocardial Injury Following Repeated Internal Atrial Shocks by Monitoring Serum Cardiac Troponin I Levels

CHEST Journal ◽  
2000 ◽  
Vol 118 (2) ◽  
pp. 342-347 ◽  
Author(s):  
Giuseppe Boriani ◽  
Mauro Biffi ◽  
Vittorio Cervi ◽  
Gabriele Bronzetti ◽  
Giorgia Magagnoli ◽  
...  
Keyword(s):  
Cardiac Troponin ◽  
Myocardial Injury ◽  
Troponin I ◽  
Cardiac Troponin I ◽  
Serum Cardiac Troponin

High Incidence of Myocardial Ischemia during Postpartum Hemorrhage

2004 ◽  
Vol 100 (1) ◽  
pp. 30-36 ◽  
Author(s):  
Peter C. J. Karpati ◽  
Mathias Rossignol ◽  
Marcus Pirot ◽  
Bernard Cholley ◽  
Eric Vicaut ◽  
...  
Keyword(s):  
Intensive Care ◽  
Myocardial Ischemia ◽  
Hemorrhagic Shock ◽  
Postpartum Hemorrhage ◽  
Cardiac Troponin ◽  
Myocardial Injury ◽  
Troponin I ◽  
Elevated Serum ◽  
Cardiac Troponin I ◽  
Arterial Blood

Background Postpartum hemorrhage remains a major cause of global maternal morbidity and mortality, even in developed countries, despite the use of intensive care units. This study sought to (1) assess whether myocardial ischemia could be associated with and even aggravate hemorrhagic shock in young parturients admitted for postpartum hemorrhage, and (2) identify the independent risk factors for myocardial ischemia. Methods On their referral to the intensive care unit, a multidisciplinary team managed parturients with severe postpartum hemorrhage. Ventilation, transfusion, catecholamines, surgery, or angiography with uterine embolization were provided as clinically indicated. Plasma cardiac troponin I levels were used as a surrogate marker of acute myocardial injury and electrocardiograms of myocardial ischemia. Results A total of 55 parturients were referred with severe postpartum hemorrhage, all in hemorrhagic shock. Twenty-eight parturients (51%) had elevated serum levels of cardiac troponin I (9.4 microg/l [3.7-26.6 microg/l]), which were associated with electrocardiographic signs of ischemia and deteriorated myocardial contractility and correlated with the severity of hemorrhagic shock. Indeed, multivariate analysis identified low systolic and diastolic arterial blood pressure (&lt; 88 and &lt; 50 mmHg, respectively) and increased heart rate (&gt; 115 beats/min) as independent predictors of myocardial injury. In addition, all patients who were given catecholamines also had elevated cardiac troponin I levels. Conclusions These results suggest that treatment of postpartum hemorrhage-induced hemorrhagic shock should be coupled with concomitant prevention of myocardial ischemia, even in young parturients.

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