Editing Heart failure (section)

== Definition ==
When the heart functions poorly as a pump and does not circulate blood adequately via the [[circulatory system]] to meet the demands of the body, the term 'cardiovascular insufficiency' is sometimes used. This generally leads to the syndrome of heart failure, a combination of [[signs and symptoms]]<ref name="ESC2021"/>{{rp|page=3612}}<ref name="NICE2018ch2"/> when the heart functions poorly as a pump. This leads to high filling pressure in the left atrium with fluid accumulation and water retention.  Most of the visible signs of heart failure are the result of this fluid accumulation ([[edema]]) and the adjective [[wikt:congestion#Noun|congestion]] is added to the definition of heart failure. Impaired ejection can lead to inadequate blood flow to the body tissues, resulting in [[ischemia]].<ref name="Girerd2018">{{cite journal| vauthors = Girerd N, Seronde MF, Coiro S, Chouihed T, Bilbault P, Braun F, etal| title=Integrative Assessment of Congestion in Heart Failure Throughout the Patient Journey. | journal=JACC Heart Fail | year= 2018 | volume= 6 | issue= 4 | pages= 273–285 | pmid=29226815 | doi=10.1016/j.jchf.2017.09.023 | pmc= | doi-access= }}</ref><ref name="Thibodeau2018" />