KMID : 1164620200530050285
|
|
Korean Journal of Thoracic and Cardiovascular Surgery 2020 Volume.53 No. 5 p.285 ~ p.290
|
|
Hemodynamic Performance of Pericardial Bioprostheses in the Aortic Position
|
|
Lee Hae-Ju
Hwang Ho-Young Sohn Suk-Ho Choi Jae-Woong Park Jun-Bean Kim Kyung-Hwan Kim Ki-Bong
|
|
Abstract
|
|
|
Background: This study was conducted to evaluate the hemodynamic performance and the incidence of prosthesis-patient mismatch (PPM) after aortic valve replacement (AVR) using bovine pericardial valves (Carpentier-Edwards Perimount Magana and Magna Ease).
Methods: In total, 216 patients (mean age, 70.0¡¾10.5 years) who underwent AVR using stented bovine pericardial valves and had follow-up echocardiography between 3 months and 2 years (mean, 12.0¡¾6.6 months) after surgery were enrolled. The implanted valve sizes were 19, 21, 23, and 25 mm in 32, 56, 99, and 29 patients, respectively.
Results: On follow-up echocardiography, the mean transvalvular pressure gradients for the 19-mm, 21-mm, 23-mm, and 25-mm valves were 13.3¡¾4.4, 12.6¡¾4.2, 10.5¡¾3.9, and 10.2¡¾ 3.7 mm Hg, respectively. The effective orifice area (EOA) was 1.25¡¾0.26, 1.54¡¾0.31, 1.81¡¾0.41, and 1.87¡¾0.33 cm2, respectively. These values were smaller than those suggested by the manufacturer for the corresponding sizes. No patients had PPM, when based on the reference EOA. However, moderate (EOA index ¡Â0.85 cm2/m2) and severe (EOA index ¡Â0.65 cm2/m2) PPM was present in 56 patients (11.8%) and 9 patients (1.9%), respectively, when using the measured values.
Conclusion: Carpentier-Edwards Perimount Magna and Magna Ease bovine pericardial valves showed satisfactory hemodynamic performance with low rates of PPM, although the reference EOA could overestimate the true EOA for individual patients.
|
|
KEYWORD
|
|
Aortic valve, Surgery, Heart valves, Bioprosthesis, Hemodynamics
|
|
FullTexts / Linksout information
|
|
|
|
Listed journal information
|
|
|
|