Risk-corrected impact of mechanical versus bioprosthetic valves on long-term mortality after aortic valve replacement Ole Lund, MD, PhD, Martin Bland, MSc, PhD The Journal of Thoracic and Cardiovascular Surgery Volume 132, Issue 1, Pages 20-26.e3 (July 2006) DOI: 10.1016/j.jtcvs.2006.01.043 Copyright © 2006 The American Association for Thoracic Surgery Terms and Conditions
Figure 1 Mean age (■) ± 2 standard deviations (SDs) of the 15 mechanical and 23 bioprosthetic valve series. Areas of the squares are proportional to the total follow-up (patient-y) in each valve series. The Journal of Thoracic and Cardiovascular Surgery 2006 132, 20-26.e3DOI: (10.1016/j.jtcvs.2006.01.043) Copyright © 2006 The American Association for Thoracic Surgery Terms and Conditions
Figure 2 Total death rate of the 15 mechanical (■) and 23 bioprosthetic (□) valve series in relation to mean age of each series. Areas of the squares are proportional to the total follow-up (patient-y) in each valve series. The Journal of Thoracic and Cardiovascular Surgery 2006 132, 20-26.e3DOI: (10.1016/j.jtcvs.2006.01.043) Copyright © 2006 The American Association for Thoracic Surgery Terms and Conditions