Long-term follow-up of patients who have undergone valve replacements for acquired valvular disease: A clinical and hemodynamic study.

Exercise Radionuclide Ventriculography for Predicting Post-Operative Left Ventricular Function in Chronic Aortic Regurgitation

“…This finding can be relevant for timing of surgical interventions because the aim should be to choose a time when it can be assumed that the patient will be improved post-operatively. stress (24), even if the present results do not allow conclusions regarding clinical outcome. Patients in the different subgroups defined by pre-operative EF exercise response showed a similar exercise response pattern post-operatively.…”

“…Previous studies of radionuclide ventriculography showed that EF during exercise and exercise EF response have predictive value for the predicted length of the period until symptoms develop and there is an absolute indication for surgery (23,24). These studies were performed in an era when Ejection fraction (EF) at rest is one of the most frequently used parameters when evaluating left ventricular function.…”