Andréa Maria Gomes Falcão

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BACKGROUND The warm-up phenomenon observed after the second of two sequential exercise tests is characterized by an increased time to ischemia and ischemic threshold, and the latter is related to ischemic preconditioning. Previous studies have demonstrated that a single dose of glibenclamide, a cardiac ATP-sensitive K (K(ATP)) channel blocker, prevents(More)
Male and female rats were treated daily for 13 weeks with an ethanol extract of Cissampelos sympodialis leaves (9, 45 and 225 mg[sol ]kg). The food consumption, body weight and behavioural effects in the open-field test were evaluated by weekly monitoring. The results showed that the extract chronic treatment in female rats (45 and 225 mg[sol ]kg) reduced(More)
Myocardial perfusion imaging (MPI) with 99mTc-sestamibi (sestamibi) SPECT and rubidium-82 (82Rb) PET both allow for combined assessment of perfusion and left ventricular (LV) function. We sought to compare parameters of LV function obtained with both methods using a single dipyridamole stress dose. A group of 221 consecutive patients (65.2 ± 10.4 years,(More)
BACKGROUND Functional tests have limited accuracy for identifying myocardial ischemia in patients with left bundle branch block (LBBB). OBJECTIVE To assess the diagnostic accuracy of dipyridamole-stress myocardial computed tomography perfusion (CTP) by 320-detector CT in patients with LBBB using invasive quantitative coronary angiography (QCA) (stenosis ≥(More)
OBJECTIVES Perfusion abnormalities are frequently seen in Single Photon Emission Computed Tomography (SPECT) when a left bundle branch block is present. A few studies have shown decreased coronary flow reserve in the left anterior descending territory, regardless of the presence of coronary artery disease. OBJECTIVE We sought to investigate rubidium-82(More)
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