Factors underlying elevated troponin I levels following pacemaker primo-implantation

Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
Tomas HnatekMiroslav Zavoral

Abstract

Cardiac troponins are routinely used as markers of myocardial damage. Originally, they were only intended for use in diagnosing acute coronary syndromes; however, we now know that raised serum troponin levels are not always caused by ischemia. There are many other clinical conditions that cause damage to cardiomyocytes, leading to raised levels of troponin. However, the specificity of cardiac troponins towards the myocardium is absolute. Our work focuses on mechanical damage to the myocardium and on monitoring the factors that raise the levels of cardiospecific markers after primo-implantation of a pacemaker with an actively fixed electrode. (i) To determine whether the use of a primo-implanted pacemaker with an electrode system with active fixation will raise troponin levels over baseline. (ii) To assess whether troponin I elevation is dependent on procedure complexity. We enrolled 219 consecutive patients indicated for pacemaker primo-implantation; cardiospecific marker values (troponin I, CKMB, myoglobin) were determined before the implantation procedure and again at 6- and 18-h intervals after the procedure. We monitored duration of cardiac skiascopy, number of attempts to place the electrode (active penetration into the ti...Continue Reading

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Citations

Apr 19, 2017·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Xueying ChenJunbo Ge

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