Hi, the most probable, evident cause which can bring to legs swelling in this situation is heart failure worsening. Heart failure can progress even in case that patient accurately takes prescribed drugs. Atrial fibrillation complicates, worsenes the course of disease. Try to reach her doctor as soon as possible. Doctor may advice to increase diuretic doses, contunue treatment in-hospital states and in general fortified heart failure treatment brings the patient to a compensated condition within ...
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