Article Text

other Versions

PDF
Forgotten atria: driver of symptoms in heart failure with normal ejection fraction?
  1. Yu Ting Tan1,
  2. John E Sanderson2
  1. 1Department of Cardiology, Queen Elizabeth Hospital, University of Birmingham, Birmingham, UK
  2. 2Division of Cardiology, Department of Medicine, The Chinese University of Hong Kong, Hong Kong, China
  1. Correspondence to Professor J E Sanderson, Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin SAR, Hong Kong, China; jesanderson{at}hotmail.com

Statistics from Altmetric.com

Recently it has become apparent that there are a variety of abnormalities of systolic and diastolic function in patients with heart failure and a normal (or ‘preserved’) ejection fraction (HFNEF). These include reduced myocardial systolic strain, reduced ventricular systolic rotation, reduced mitral annular motion in systole and diastole, and delayed ventricular untwisting associated with reduced left ventricular (LV) suction, all of which fail to increase normally on exercise.1–3 Abnormalities of systolic function with subsequent reduced early diastolic filling lead to a greater dependence on atrial contribution towards late diastolic filling. Active atrial contraction acts as a booster to augment LV filling, particularly in compensation for shortened diastolic filling time due to increased heart rate on exercise. Similarly, such atrial compensation plays a significant role when early diastolic filling is reduced with LV hypertrophy due to hypertensive heart disease, which is one of the common precursors of HFNEF. Until recently, there has been little information on left atrial (LA) function in HFNEF. LA function has been shown to contribute significantly to stroke volume in conditions such …

View Full Text

Request permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

Linked Articles