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General Thoracic and Cardiovascular Surgery
Published in: General Thoracic and Cardiovascular Surgery 6/2016

01-06-2016 | Original Article

Comparison of saddle-shape flexibility and elliptical-shape stability between Cosgrove-Edwards and Memo-3D annuloplasty rings using three-dimensional analysis software

Authors: Akira Tsuneto, Kiyoyuki Eishi, Takashi Miura, Kazuyoshi Tanigawa, Seiji Matsukuma, Takako Minami, Yuji Koide, Satoshi Ikeda, Hiroaki Kawano, Koji Maemura

Published in: General Thoracic and Cardiovascular Surgery | Issue 6/2016

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Abstract

Objective

To compare three-dimensional dynamics between implanted Cosgrove-Edwards and Sorin Memo-3D annuloplasty rings during the cardiac cycle.

Methods

We examined 11 Cosgrove-Edwards rings and 20 Sorin Memo-3D rings after mitral plasty using real-time three-dimensional transesophageal echocardiography. We evaluated ring height, ellipticity, and geometry during one cardiac cycle. Four evenly spaced phases each selected during systole and diastole were assessed using REAL VIEW software.

Results

The height of the Cosgrove-Edwards and Sorin Memo-3D rings was similar (2.3 ± 0.8 vs. 1.9 ± 0.9 mm, p = 0.44). The maximum difference in ring height during one cardiac cycle (change in height) was larger for the Cosgrove-Edwards than the Sorin Memo-3D rings (2.3 ± 0.8 vs. 1.5 ± 0.6 mm, p = 0.014). Ellipticity and the maximum difference in ellipticity during one cardiac cycle (change in ellipticity) were larger for Cosgrove-Edwards than Sorin Memo-3D rings (80.0 ± 9.1 vs. 72.0 ± 4.8 %, p = 0.014, respectively, and 12.0 ± 3.1 vs. 6.0 ± 1.8 %, p < 0.001).

Conclusions

Cosgrove-Edwards rings were more flexible, whereas Sorin Memo-3D rings maintained the elliptical shape more effectively.
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Metadata
Title
Comparison of saddle-shape flexibility and elliptical-shape stability between Cosgrove-Edwards and Memo-3D annuloplasty rings using three-dimensional analysis software
Authors
Akira Tsuneto
Kiyoyuki Eishi
Takashi Miura
Kazuyoshi Tanigawa
Seiji Matsukuma
Takako Minami
Yuji Koide
Satoshi Ikeda
Hiroaki Kawano
Koji Maemura
Publication date
01-06-2016
Publisher
Springer Japan
Published in
General Thoracic and Cardiovascular Surgery / Issue 6/2016
Print ISSN: 1863-6705
Electronic ISSN: 1863-6713
DOI
https://doi.org/10.1007/s11748-016-0645-0

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