Valor diagnóstico da cintilografia miocárdica em pacientes com doença coronariana multiarterial

Abstract

Background: Myocardial perfusion radionuclide imaging (MPRI) is a noninvasive method extremely useful for evaluating ischemia in patients with coronary disease. However, the idea that this method would not be effective for patients with multivessel coronary disease is still entertained.

Comparative Study between Perfusion Changes and Positive Findings on Coronary Flow Reserve

“…26,27 Patients with significant areas of ischemia have a worse prognosis when maintained on clinical treatment. 28 If the ischemia negatively affects the individual's daily life due to the occurrence of symptoms, revascularization may bring major benefits, as shown in the COURAGE study, which demonstrated better symptom control with revascularization; 29 even asymptomatic patients with moderate/important ischemia show better outcomes in terms of reduction of adverse events after revascularization of the lesion.…”

Avaliação combinada de imagens de cintilografia de perfusão miocárdica em posição prona e supina

“…De acordo com Siqueira et al (2011), as alterações da perfusão miocárdica são as primeiras a ocorrer durante episódios de isquemia, segundo os princípios fisiológicos da cascata isquêmica. Logo, revela-se a importância de métodos capazes de avaliar as alterações da perfusão (fluxo sanguíneo e a reserva de fluxo), através de informações provenientes de métodos não invasivos.…”