Cause and duration of heart failure may impact on the response to sacubitril/valsartan in patients with heart failure and reduced ejection fraction

^aDepartment of Cardiology, Wexham Park Hospital, Frimley Health NHS Foundation Trust, Slough, UK

^bDepartment of Cardiology, University of Cyprus Medical School, Nicosia, Cyprus

Correspondence to Constantinos G. Missouris, MD, FRCP, FACP Wexham Park Hospital, Frimley Health NHS Foundation Trust, Slough, UK. E-mail: [email protected]

Received 16 August, 2020

Accepted 21 August, 2020