Hemodynamic performance of cryopreserved aortic homograft valves during midterm follow-up
Maria J. Eriksson, MDa,
G.öran Källner, MDb,
Stefan Rosfors, MD, PhDa,
Torbjörn Ivert, MD, PhDb and
Lars-Åke Brodin, MD, PhDa
a Division of Clinical Physiology, Karolinska Hospital Department of Surgical Sciences, Karolinska Institute, Stockholm, Sweden
b Division of Thoracic Surgery, Karolinska Hospital Department of Surgical Sciences, Karolinska Institute, Stockholm, Sweden

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Figure 1 Actuarial analysis of freedom from postoperative aortic regurgitation (AR) more than grade I, II and III, respectively, in 59 patients with a cryopreserved aortic homograft valve. Numbers of patients at risk and 95% confidence limits are indicated.
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Figure 2 Instantaneous postoperative risk of developing aortic regurgitation (AR) more than grades I, II and III, respectively, in 59 patients with cryopreserved aortic homograft valves.
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