1. Magnitude of Negative Impact of Preoperative Heart Failure on Mortality During Aortic Valve Replacement in the Medicare Population 
Christina M. Vassileva, MD, Tesfaye Telila, MD, Stephen Markwell, MA, Stephen Hazelrigg, MD 
The Annals of Thoracic Surgery 
Volume 99, Issue 5, Pages (May 2015)
DOI: /j.athoracsur
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

2. Fig 1
Operative mortality for patients according to heart failure status and stratified by number of preoperative heart failure (HF) admissions. (HF − = without preoperative HF; HF + = with preoperative HF.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

3. Fig 2
Long-term survival after primary isolated aortic valve replacement in Medicare patients according to the presence and duration of preoperative heart failure (HF). (HF − = without preoperative HF; HF + = with preoperative HF.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

4. Fig 3
Long-term survival after primary isolated aortic valve replacement in Medicare patients with preoperative heart failure (HF) according to the number of preoperative HF admissions.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions