Can QT dispersion improve the accuracy of stress ECG TMT in detecting myocardial ischemia in chronic stable CAD patients? A stress myocardial perfusion imaging study.

Background: QT dispersion (QTd) is related to regional variations in myocardial repolarization. Our study aims to assess the value of QTd in prediction of myocardial ischemia and its severity during stress imaging. We enrolled one hundred patients having stable coronary artery disease (CAD) and fulfilling the "Appropriateness criteria for cardiac radionuclide imaging" (MPI).

Value of N-terminal pro brain natriuretic peptide in predicting prognosis and severity of coronary artery disease in acute coronary syndrome.

Background: Measurement of N-terminal pro brain natriuretic peptide (NT-proBNP) in the evaluation of patients with acute coronary syndrome has appeared to be a useful prognostic marker of cardiovascular risk.

Aim Of The Work: To assess the in-hospital prognostic value of NT-proBNP in patients with acute coronary syndrome (ACS) and its relation to the severity of coronary artery disease.

Patients And Methods: This study included 132 consecutive patients with ACS, 64 patients with unstable angina (UA), 46 patients with non-ST segment elevation myocardial infarction (NSTEMI), and 22 patients with ST segment elevation myocardial infarction (STEMI).