Increase in serum troponin-I following rotational atherectomy reliably predicts the occurrence of reversible wall motion abnormalities

Atrial fibrillation associated with exogenous subclinical hyperthyroidism, changing axis deviation, troponin-I positive and without acute coronary syndrome

“…It has been also reported an acute myocardial infarction without significant coronary stenoses associated with subclinical hyperthyroidism [24,32] and a recurrent acute pulmonary embolism associated with subclinical hyperthyroidism has been reported too [33]. Serum troponin-I [34] is a sensitive indicator of myocardial damage [35] but abnormal troponin levels have been also reported without acute coronary syndrome [36,37] and without cardiac damage [38]. Cardiac troponin-I is released from myocytes in both reversible and irreversible myocardial injury.…”

Abnormal troponin I levels in acute pulmonary embolism without abnormal concentrations of D-dimer at admission

“…Serum troponin I is a sensitive indicator of myocardial damage [1] but abnormal troponin I levels have been reported without acute coronary syndrome and without cardiac damage [2,3]. It has been reported that right ventricular overload and hypoxia in acute pulmonary embolism may lead to right ventricular myocardium injury reflected by elevated cardiac troponin levels [4]and that in patients with acute central sub-massive or non-massive pulmonary embolism, even mild increase in troponin I N 0.03 μg/L may provide relevant short-term prognostic information independent to clinical, laboratory and echocardiographic data [5].…”

Abnormal troponin I levels after supraventricular tachycardia

“…Serum troponin-I is a sensitive indicator of myocardial damage [3] but abnormal troponin I levels have been also reported without acute coronary syndrome and without cardiac damage [4]. Cardiac troponin I is released from myocytes in both reversible and irreversible myocardial injury.…”