scholarly journals Studies on Cardiac Troponin I in patients with Cardiogenic Shock

2013 ◽  
Vol 18 (2) ◽  
pp. 21-23 ◽  
Author(s):  
Muhammed Rukunuzzman ◽  
Shah Abdul Latif ◽  
Maruf-Ur Rahman ◽  
Kalyan Kirtania ◽  
Md Tauhidul Islam ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Cardiogenic Shock ◽  
Cardiac Troponin ◽  
Troponin I ◽  
Cardiac Troponin I ◽  
Control Group ◽  
Case Group ◽  
Dismal Prognosis ◽  
Serum Cardiac Troponin

Despite recent advances in the care of patients with acute coronary disease and the benefits associated with the early use of reperfusion strategies, cardiogenic shock as a complication of acute myocardial infarction continues to be associated with a dismal prognosis. There is a strong relationship between serum cardiac troponin I with cardiogenic shock as a complication of acute myocardial infarction. A case control study was designed to see the association of serum cardiac troponin I with cardiogenic shock. The study was done from July 2008 to June 2009. Sixty subjects were selected as study population which were taken from department of Cardiology, Mymensingh Medical College hospital, Mymensingh. Among them 30 were diagnosed case of cardiogenic shock and 30 were age and sex matched control. It revealed that the mean cardiac troponin- I levels in case group were 15.998±28.31 ng/ml and control group were 0.065 ± 0.08 ng/ml respectively. The study suggest that serum cardiac troponin- I level is significantly associated with cardiogenic shock. DOI: http://dx.doi.org/10.3329/jdnmch.v18i2.16017 J. Dhaka National Med. Coll. Hos. 2012; 18 (02): 21-23

scholarly journals Elevated serum homocysteine level has a positive correlation with serum cardiac troponin I in patients with acute myocardial infarction

2012 ◽  
Vol 38 (1) ◽  
pp. 9-13 ◽  
Author(s):  
N Alam ◽  
HILR Khan ◽  
AW Chowdhury ◽  
MS Haque ◽  
MS Ali ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Cardiac Troponin ◽  
Myocardial Injury ◽  
Troponin I ◽  
Homocysteine Level ◽  
Surrogate Marker ◽  
Cardiac Troponin I ◽  
Serum Homocysteine ◽  
Serum Cardiac Troponin

The objective of the present study is to find out whether the increased serum homocysteine level is associated with the increased serum troponin I as a surrogate marker of extent of myocardial injury in acute myocardial infarction patients. Elevated homocysteine levels are associated with increased thrombosis. In patients presenting with Acute Coronary Syndrome (ACS), it is not known whether this association is reflected in the degree of myocardial injury. This was a cross sectional study conducted among the patients with acute myocardial infarction in the Department of Cardiology, Dhaka Medical College Hospital during the period of October 2009 to September 2010 and which included 194 consecutive patients with acute myocardial infarction. The mean (±SD) serum homocysteine level was 20.2±14.3 ?mol/L with range from 7.4 to 129.1 ?mol/L. Mean serum troponin-I level was classified according to normal (<15?mol/L) and high (?15?mol/L) levels of serum homocysteine values. The mean serum troponin-I level was 8.9±8.6 ng/ml in the patients having normal serum homocysteine level and 18.4±6.5 ng/ml in the patients having high serum homocysteine level. A significant positive correlation (r=0.273; p<0.001) was found between serum troponin-I level with homocysteine level. Patients with moderate hyperhomocysteinemia (?15 ?mol/L) was found to be 7.09 times more likely to have increased serum troponin-I (a surrogate marker of extent of myocardial injury). The main observation of the present study was that elevated serum homocysteine level has a positive correlation with serum cardiac troponin-I in patients with acute myocardial infarction. So serum homocysteine is associated with increased extent of myocardial injury as measured by serum cardiac troponin-I level, a surrogate marker in patients with acute myocardial infarction.  DOI: http://dx.doi.org/10.3329/bmrcb.v38i1.10445  Bangladesh Med Res Counc Bull 2012; 38: 9-13

Implementation of serum cardiac troponin I as marker for detection of acute myocardial infarction

1999 ◽  
Vol 137 (2) ◽  
pp. 332-337 ◽  
Author(s):  
Alireza Falahati ◽  
Scott W. Sharkey ◽  
Dane Christensen ◽  
Matt McCoy ◽  
Elizabeth A. Miller ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Cardiac Troponin ◽  
Troponin I ◽  
Cardiac Troponin I ◽  
Serum Cardiac Troponin

The Significance of Serum Cardiac Troponin I Concentration in the Patients with Acute Myocardial Infarction

1998 ◽  
Vol 28 (10) ◽  
pp. 1717
Author(s):  
Youg Sun Yoon ◽  
Heung Sun Kang ◽  
Chung Whee Choue ◽  
Kwon Sam Kim ◽  
Jung Sang Song ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Cardiac Troponin ◽  
Troponin I ◽  
Cardiac Troponin I ◽  
Serum Cardiac Troponin

scholarly journals Assessment of serum cardiac troponin-I over serum CPK-MB in early diagnosis of acute myocardial infarction (AMI)

2018 ◽  
Vol 5 (3) ◽  
pp. 722
Author(s):  
Santosh Kumar ◽  
Sachin Patil
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Chest Pain ◽  
Early Diagnosis ◽  
Cardiac Troponin ◽  
Troponin I ◽  
Anterior Wall ◽  
Cardiac Troponin I ◽  
History Of ◽  
Serum Cardiac Troponin

Background: The early mortality rate from AMI is 30% with about half of them occurring within 1hour of disability. Although the mortality rate after admission for AMI has declined by 30% over the past decades, approximately 1 of every 25 patients who survive the initial hospitalization die in the first year after AMI. The gold standard for diagnosis of MI has been an elevated serum level of creatinine kinase – myocardial band (CK- MB), the cardiac-specific isoenzyme of CK. However, elevated CK-MB may not detect all myocardial necrosis. In patients who die suddenly after severe or silent episodes of ischemia, autopsies frequently reveal micronecrosis that was not reflected in routine CK-MB measurements. The present study was undertaken to know that serum Cardiac Troponin-I is more sensitive marker than serum CPK-MB in early diagnosis of acute myocardial infarction (AMI).Methods: The study was carried out in tertiary care hospital in Gulbarga. The study was undertaken with an aim to study that serum cardiac troponin-I (cTnl) is more sensitive than serum CK-MB in early diagnosis of acute myocardial infarction (AMI). The study was conducted on patients admitted with history of chest pain suggestive of AMI as diagnosed by WHO criteria to medicine ward of Basaveshwar Teaching and General Hospital, Gulbarga. The period of study was from June 2012 to June 2014. The sample size included 100 patients with history of chest pain suggestive of AMI, selected by simple random method.Results: Our results revealed that cardiac troponin I was more sensitive (62%) than CK-MB in overall cases admitted in between 6-24 hrs from the onset of chest pain. Maximum number (41%) of AMI patients were affected on the anterior wall followed by Inferior wall of AMI. 11 percent were affected with Antero lateral wall wereas 5 to 6 percent were affected with anteroseptal and global acute and right ventricular AMI was seen among 2 percent of patients. Anterior wall AMI was the significantly affected site with AMI (ʎ2:12.5, P:0.0004). The maximum number of acute myocardial infarctions were ST elevation myocardial infarctions. 28% of cases where CKMB is normal, the cTnI detects the AMI cases indicating its sensitivity.Conclusions: Cardiac troponin-I (cTnI) was more sensitive serum marker than CKMB in the early diagnosis of acute myocardial infarction (AMI). Anterior wall was the most significantly affected site of AMI. In the future, further improvements in analytical performance may open additional diagnostic windows.

scholarly journals Diagnostic Application of Postmortem Cardiac Troponin I Pericardial Fluid/Serum Ratio in Sudden Cardiac Death

Diagnostics ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 614
Author(s):  
Diana Hernández-Romero ◽  
María del Rocío Valverde-Vázquez ◽  
Juan Pedro Hernández del Rincón ◽  
José A. Noguera-Velasco ◽  
María D. Pérez-Cárceles ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Sudden Cardiac Death ◽  
Cardiac Troponin ◽  
Cardiac Death ◽  
Troponin I ◽  
Sampling Site ◽  
Pericardial Fluid ◽  
Cardiac Troponin I ◽  
Control Group ◽  
Complementary Method

In approximately 5% of unexpected deaths, establishing a conclusive diagnosis exclusively on the basis of anatomo-pathological findings in a classic autopsy is difficult. Postmortem biomarkers have been actively investigated as complementary indicators to help to reach valid conclusions about the circumstances of death. Several studies propose either the pericardial fluid or peripheral veins as a location for troponin determination, but the optimum sampling site is still a matter of debate. Our objective was to evaluate the association between the ratio of troponin values in the pericardial fluid and serum (determined postmortem) and the diagnosis of acute myocardial infarction (AMI) in the context of sudden cardiac death. We included 175 forensic cases. Two groups were established: AMI deaths (48; 27.4%) and the control group (127; 72.6%). The cardiac Troponin I (cTnI) values in the pericardial fluid and the troponin ratio were found to be associated with the cause of death. Univariate regression analyses showed that both age and the cTnI ratio were significantly associated with the diagnosis of AMI death. In a multivariate analysis, adjusting for confounding factors, the age and cTnI ratio were independent predictors of death from myocardial infarction. We performed a receiver operating characteristic (ROC) curve for the cTnI ratio for AMI death and selected a cut-off point. Our biomarker was found to be a valuable and highly effective tool for use in the forensic field as a complementary method to facilitate diagnosis in nonconclusive autopsies.

Abstract 2425: Absence of Auto-Antibodies against Cardiac Troponin I Predicts Improvement of Left Ventricular Function after Acute Myocardial Infarction

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Florian Leuschner ◽  
Jin Li ◽  
Stefan Göser ◽  
Lars Reinhardt ◽  
Renate Öttl ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Stroke Volume ◽  
Antibody Titer ◽  
Cardiac Troponin ◽  
Troponin I ◽  
Cardiac Troponin I ◽  
Igg Antibody ◽  
Follow Up Study

Application of antibodies against cardiac troponin I (cTnI-Ab) can induce dilation and dysfunction of the heart in mice. Recently, we demonstrated that immunization with cTnI induces inflammation and fibrosis in myocardium of mice. Others have shown that autoanti-bodies to cTnI are present in patients with acute coronary syndrome. But little is known about the clinical relevance of detected cTnI-Ab. First, anti-cTnI and anti-cTnT antibody titers were measured in sera from 272 patients with dilated- (DCM) and 185 with ischemic- (ICM) cardiomyopathy. Secondly, 108 patients with acute myocardial infarction (AMI) were included for a follow-up study. Heart characteristics were determined by magnetic resonance imaging 4 days and 6 –9 months after AMI. Altogether, in 7,0% of patients with DCM and in 9,2% with ICM an anti-cTnI IgG antibody titer ≥1:160 was measured. In contrast, only in 1,7% of patients with DCM and in 0,5% with ICM an anti-cTnT IgG antibody titer ≥1:160 was detected. Ten out of 108 patients included in the follow-up study were tested positive for cTnI-Ab with IgG Ab titers ≥1:160. TnI-Ab negative patients showed a significant increase in LVEF and stroke volume 6 –9 months after AMI. In contrast, there was no significant increase in LVEF and stroke volume in TnI-Ab positive patients. We demonstrate for the first time that the prevalence of cTnI-Abs in patients with AMI has an impact on the improvement of the LVEF over a study period of 6 –9 months.

Assessment of left ventricular function using serum cardiac troponin I measurements following myocardial infarction

1998 ◽  
Vol 272 (1) ◽  
pp. 59-67 ◽  
Author(s):  
Fred S. Apple ◽  
Scott W. Sharkey ◽  
Alireza Falahati ◽  
Maryann Murakami ◽  
Naheed Mitha ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Left Ventricular Function ◽  
Ventricular Function ◽  
Cardiac Troponin ◽  
Troponin I ◽  
Left Ventricular ◽  
Cardiac Troponin I ◽  
Serum Cardiac Troponin
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