Table 1 Search strategy

Medline

(heart failure) or (CCF) or (Cardiomyopathy) or (Congestive HF) or (cardiac failure) AND ((Loneliness) OR (Social Isolation))

Scopus

TITLE-ABS-KEY((“heart failure” OR “Cardiomyopathy” OR “Congestive heart failure” OR “Cardiac Failure”) AND (“Loneliness” OR “Social Isolation”))

CINAHL

((heart failure) OR (CCF) OR (Cardiomyopathy) OR (Congestive heart failure) OR (Cardiac Failure)) AND ((Social Isolation) OR (Loneliness))