Left ventricular diastolic and systolic functions in patients with syndrome X [anginia and angiographically normal coronary arteries]

Exercise performance was studied by treadmill exercise test and left ventricular filling dynamics were assessed by Doppler-derived transmitral flow pattern analysis in 25 patients with angina. The same protocol was done in 30 patients with documented coronary artery disease [CAD] and in 15 controls. Unlike the controls, patients with syndrome X [SX] and those with CAD consistently showed exercise- induced ST segment abnormalities and impaired resting left ventricular filling. The peak early diastolic flow velocity was less in SX and CAD patients than in the controls. The peak late diastolic flow velocity was less in SX and CAD patients than in the controls. There was no significant difference between the three groups as regard acceleration and deceleration time of early and late transmitral diastolic flow velocity

Los grandes sindromes / The big syndromes

En el presente texto se presentan en forma didáctica los sindromes más frecuentes de aparición en la práctica médica diaria. Cada uno de los temas ha sido desarrollado incluyendo aspectos anatomo-fisiológicos y fisiopatológicos de importancia, diagnóstico diferencial basado en los síntomas y signos y su correlación mutua, hasta lograr el diagnóstico sindromático. Entre los objetivos de realizar esta obra estuvo el colaborar con la materia Clínica Médica I del programa vigente en el proceso de enseñanza-aprendizaje