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J Am Coll Cardiol, 1998; 32:1002-1008
© 1998 by the American College of Cardiology Foundation
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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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Figure 3 Maximum pressure differences ({Delta}Pmax, calculated with the short form of the modified Bernoulli equation) at rest and during exercise in eight patients with prosthesis-patient mismatch (valve area index <1 cm2/m2, •) and in 23 patients with valve area index ≥1 cm2/m2 ({blacktriangleup}). Mean and one SD are indicated.

 





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