In 2015 I was diagnosed with cardiomyopathy and heart failure left ventricular systolic dysfunction. My ejection fraction (pump rate) was 29% and after taking candersatan and spirolactone at the maximum doses, my ejection fraction was checked last week and has increased to 49%. The improvement is impressive but I still have heart damage and my lack of stamina and energy remains as bad. Question is, does anybody know if my improved ejection fraction could decrease again? 49% is still borderline heart failure and being a cynic about my previous misdiagnosis I have reservations about the future.