Baseline characteristics of patients recruited into the CARE-HF study

Eur J Heart Fail. 2005 Mar 2;7(2):205-14. doi: 10.1016/j.ejheart.2005.01.010.


Background: Cardiac resynchronization therapy (CRT) is a promising new treatment for patients with heart failure and cardiac dyssynchrony. The CARE-HF study is a morbidity/mortality trial designed to provide conclusive evidence of the effects of CRT in patients with moderate to severe heart failure.

Methods: A description of the baseline characteristics of patients randomised in the CARE-HF trial.

Results: 813 Patients with predominantly NYHA class III (94%) heart failure were randomised in 82 centres. Their mean age was 65 (interquartile range [IQR] 59 to 72) years, 34% were aged >70 years and 27% were women. Thirty-eight percent of the patients had ischaemic heart disease. Mean heart rate was adequately controlled at 70 (IQR 60 to 78) bpm consistent with the use of beta-blockers. Supine systolic blood pressure was low at 117 (IQR 105 to 130) mm Hg. Eighty-eight percent of patients had a QRS > or =150 ms. Mean LV ejection fraction was 26% (IQR 22 to 29) and end-diastolic dimension was 7.2 (IQR 6.4 to 7.8) cm. Ninety-four percent of patients were receiving loop diuretics, 95% an ACE inhibitor or angiotensin receptor blocker (ARB), 72% a beta-blocker and 56% were taking spironolactone.

Conclusions: The patients enrolled in CARE-HF had moderately severe heart failure and cardiac dysfunction with evidence of cardiac dyssynchrony. The population appears at high risk of events despite pharmacological therapy and therefore appropriate for a trial of CRT.

MeSH terms

  • Aged
  • Arrhythmias, Cardiac / complications
  • Arrhythmias, Cardiac / mortality
  • Arrhythmias, Cardiac / therapy*
  • Atrioventricular Node
  • Cardiac Pacing, Artificial*
  • Female
  • Heart Failure / complications
  • Heart Failure / mortality
  • Heart Failure / therapy*
  • Humans
  • Male
  • Middle Aged
  • Multicenter Studies as Topic
  • Patient Selection*
  • Randomized Controlled Trials as Topic
  • Ventricular Dysfunction, Left / complications
  • Ventricular Dysfunction, Left / mortality
  • Ventricular Dysfunction, Left / therapy*