OBJECTIVE Mitral valve stenosis (MS) remains as an important cause of morbidity despite evolution in diagnosis and treatment. Generally, left ventricular (LV) systolic functions are well preserved in patients with MS. However, there are some studies showing impaired LV systolic functions in patients with pure MS. The purpose of this study was to evaluate subclinical LV systolic dysfunction in a...

This study is written in a way to stress the importance of introducing the active force generated by the myocardium in the formalism describing the pressure-volume relation (PVR) in the left ventricle. Various clinical applications of the end-systolic pressure-volume relation (ESPVR) are also discussed. Attention is given to the calculation of the ejection fraction (EF) and the myocardial longi...

Postextrasystolic potentiation (PESP) and l-epinephrine infusion have previously been shown by the ventriculographic technique to augment left ventricular wall motion in patients with coronary artery disease. The present study relates the magnitude of this augmentation to short-term prognosis in 56 patients with coronary artery disease and a factor already identified with reduced life expectanc...

Although long-term effects have been studied, the immediate effect of surgery for acquired heart disease on left ventricular function is not well defined. Accordingly, 44 adults with acquired heart disease underwent intraoperative two-dimensional echocardiography with a gas-sterilized transducer before and immediately after cardiopulmonary bypass. Ejection fraction was measured by short-axis ar...

where PV is the volume of blood pumped, that is given by the difference between the end-diastolic volume (EDV) and the end-systolic volume (ESV). Cardiac ejection fraction is a relevant parameter because it is highly correlated to the functional status of the heart. To determine the EF, different non-invasive techniques can be used, like echocardiography, cardiac magnetic resonance and computed...

Background During the past few years commercial solutions became available to deal with ventricular trabecules. It has been already shown, that the new algorithms have a significant impact on all parameters measured during routine evaluation (EF: ejection fraction, ESVi: end systolic volume index, EDVi: end diastolic volume index, SVi: stroke volume index, Mi: mass index). The effect of trabecu...

Septation is one of the surgical choices for double-inlet left ventricle, yet postoperative hemodynamics have not been well defined. We studied ventricular volume characteristics in 10 patients with double-inlet left ventricle before and after septation. Preoperative end-diastolic volume (EDV) of the ventricle was 291±111% (±SD) of normal and ejection fraction (EF) was 0.59± 0.07. Postoperative...

Background The use of chemotherapy for the treatment of cancer is associated with cardiovascular injuries and is most commonly monitored with assessments of left ventricular ejection fraction (EF) [1]. Often, EF changes are detected quite late; myocardial strain may identify early, subclinical changes in myocardial injury prior to a decline in EF. Recently, it has been possible to measure myoca...