scholarly journals Drug-Induced Rhabdomyolysis with Elevated Cardiac Troponin T

2015 ◽  
Vol 2015 ◽  
pp. 1-3 ◽  
Author(s):  
Gro Egholm ◽  
Manan Pareek
Keyword(s):  
Cardiac Troponin ◽  
Myocardial Injury ◽  
Troponin T ◽  
Myocardial Necrosis ◽  
High Sensitivity ◽  
Cardiac Troponin T ◽  
Drug Induced ◽  
Definitive Evidence ◽  
Positive Results

The essential role of cardiac troponin in the diagnosis of acute myocardial infarction has led to the development of high-sensitivity assays, which are able to detect very small amounts of myocardial necrosis. The high-sensitivity cardiac troponin T assay, however, is not entirely specific for myocardial injury. This case report describes a 48-year-old woman, who, two years after cardiac transplantation, presented with rhabdomyolysis. During the course of the disease, her troponin T level was elevated on repeated occasions, but other definitive evidence of myocardial injury was not found. Asymptomatic cardiac troponin T elevations during rhabdomyolysis may be due to either cardiac involvement or false positive results stemming from skeletal muscle injury.

Kinetics of high-sensitivity cardiac troponin T or troponin I compared to creatine kinase in patients with revascularized acute myocardial infarction

2015 ◽  
Vol 53 (5) ◽  
Author(s):  
Kamila Solecki ◽  
Anne Marie Dupuy ◽  
Nils Kuster ◽  
Florence Leclercq ◽  
Richard Gervasoni ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Cardiac Troponin ◽  
Troponin I ◽  
Troponin T ◽  
High Sensitivity ◽  
Cardiac Troponin T ◽  
Significant Difference ◽  
Kinetics Of

AbstractCardiac biomarkers are the cornerstone of the biological definition of acute myocardial infarction (AMI). The key role of troponins in diagnosis of AMI is well established. Moreover, kinetics of troponin I (cTnI) and creatine kinase (CK) after AMI are correlated to the prognosis. New technical assessment like high-sensitivity cardiac troponin T (hs-cTnT) raises concerns because of its unclear kinetic following the peak. This study aims to compare kinetics of cTnI and hs-cTnT to CK in patients with large AMI successfully treated by percutaneous coronary intervention (PCI).We prospectively studied 62 patients with anterior AMI successfully reperfused with primary angioplasty. We evaluated two consecutive groups: the first one regularly assessed by both CK and cTnI methods and the second group by CK and hs-cTnT. Modeling of kinetics was realized using mixed effects with cubic splines.Kinetics of markers showed a peak at 7.9 h for CK, at 10.9 h (6.9–12.75) for cTnI and at 12 h for hs-cTnT. This peak was followed by a nearly log linear decrease for cTnI and CK by contrast to hs-cTnT which appeared with a biphasic shape curve marked by a second peak at 82 h. There was no significant difference between the decrease of cTnI and CK (p=0.63). CK fell by 79.5% (76.1–99.9) vs. cTnI by 86.8% (76.6–92.7). In the hs-cTnT group there was a significant difference in the decrease by 26.5% (9–42.9) when compared with CK that fell by 79.5% (64.3–90.7).Kinetic of hs-cTnT and not cTnI differs from CK. The role of hs-cTnT in prognosis has to be investigated.

scholarly journals A Pilot Study of Matrix Metalloproteinases on the Model of Daunorubicin-induced Cardiomyopathy in Rabbits

2007 ◽  
Vol 50 (2) ◽  
pp. 109-111 ◽  
Author(s):  
Anna Potáčová ◽  
Michaela Adamcová ◽  
Martin Štěrba ◽  
Olga Popelová ◽  
Tomáš Šimůnek ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Matrix Metalloproteinases ◽  
Cardiac Remodeling ◽  
Cardiac Troponin ◽  
Troponin T ◽  
Myocardial Necrosis ◽  
Control Group ◽  
Cardiac Troponin T ◽  
Wet Weight

Matrix metalloproteinases (MMPs), activated by oxidative stress, play a key role during cardiac remodeling. In the present study we aimed to assess the role of MMPs in experimental cardiomyopathy induced by repeated 10-week administration of daunorubicin (3 mg/kg i.v.) to rabbits. In the daunorubicin group, the plasma cardiac troponin T levels (cTnT – a marker of myocardial necrosis) were significantly increased (p<0.05), commencing with the 8th administration compared with the controls. The amount of collagen (an estimate of fibrosis) was also significantly higher in the daunorubicin group (13.39 ± 0.97 mg/g wet weight) compared to the control group (10.03 ± 0.65 mg/g wet weight). In both groups, the LV MMP-activity was observed only in the gelatine substrate in the 70 kDa region (MMP-2), while no MMPs activities were detectable either in the casein or collagen containing zymograms. At the end of the experiment, the MMP- 2 activity was slightly up-regulated (by 16 %) compared with the controls.

Coronary angiography-related myocardial injury as detected by high-sensitivity cardiac troponin T assay

2016 ◽  
Vol 12 (3) ◽  
pp. 337-344 ◽  
Author(s):  
Haitham Abu Sharar ◽  
Daniel Wohlleben ◽  
Mehrshad Vafaie ◽  
Arnt V. Kristen ◽  
H. Christian Volz ◽  
...  
Keyword(s):  
Coronary Angiography ◽  
Cardiac Troponin ◽  
Myocardial Injury ◽  
Troponin T ◽  
High Sensitivity ◽  
Cardiac Troponin T

scholarly journals High-Sensitivity Troponin as a Predictor of Cardiac Events and Mortality in the Stable Dialysis Population

2014 ◽  
Vol 60 (2) ◽  
pp. 389-398 ◽  
Author(s):  
Hicham Cheikh Hassan ◽  
Kenneth Howlin ◽  
Andrew Jefferys ◽  
Stephen T Spicer ◽  
Ananthakrishnapuram N Aravindan ◽  
...  
Keyword(s):  
Cardiac Troponin ◽  
Cardiac Event ◽  
Clinical Utility ◽  
Myocardial Injury ◽  
Prospective Observational Study ◽  
Troponin T ◽  
High Sensitivity ◽  
Cardiac Troponin T ◽  
Cardiac Events ◽  
Over Time

Abstract BACKGROUND High-sensitivity cardiac troponin T (hs-cTnT) is a biomarker used in diagnosing myocardial injury. The clinical utility and the variation of this biomarker over time remain unclear in hemodialysis (HD) and peritoneal dialysis (PD) patients. We sought to determine whether hs-cTnT concentrations were predictive of myocardial infarction (MI) and death and to examine hs-cTnT variability over a 1-year period. METHODS A total of 393 nonacute HD and PD patients (70% HD and 30% PD) were followed in a prospective observational study for new MI and death. RESULTS Median hs-cTnT was 57 ng/L (interquartile range, 36–101 ng/L) with no observed difference between HD and PD patients (P = 0.11). Incremental increases in mortality (P = 0.024) and MI (P = 0.001) were observed with increasing hs-cTnT quartiles. MI incidence increased significantly across quartiles in both HD and PD patients (P = 0.012 and P = 0.025, respectively), whereas mortality increased only in HD patients (P = 0.015). For every increase of 25 ng/L in hs-cTnT, the unadjusted hazard ratio (HR) was 1.10 for mortality in the whole group (95% CI, 1.04–1.16, P = 0.001) and 1.16 for MI (95% CI, 1.08–1.23, P &lt; 0.001). Adjusted HR for mortality was 1.07 (95% CI, 1.01–1.15, P = 0.04) and 1.14 for MI (95% CI, 1.06–1.22, P &lt; 0.001). Changes in hs-cTnT from baseline concentrations after 1 year were minimal (55 ng/L vs 53 ng/L, P = 0.22) even in patients who had an MI (P = 0.53). CONCLUSIONS hs-cTnT appears to have a useful role in predicting MI and death in the dialysis population. Over a 1-year period concentrations remained stable even in patients who sustained a new cardiac event.

scholarly journals Prognostic Role of High-Sensitivity Cardiac Troponin T in Patients With Nonischemic Dilated Cardiomyopathy

2011 ◽  
Vol 75 (3) ◽  
pp. 656-661 ◽  
Author(s):  
Chiho Kawahara ◽  
Takayoshi Tsutamoto ◽  
Keizo Nishiyama ◽  
Masayuki Yamaji ◽  
Hiroshi Sakai ◽  
...  
Keyword(s):  
Dilated Cardiomyopathy ◽  
Cardiac Troponin ◽  
Troponin T ◽  
High Sensitivity ◽  
Cardiac Troponin T ◽  
Prognostic Role ◽  
Nonischemic Dilated Cardiomyopathy
Sign in / Sign up

Export Citation Format

Share Document