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

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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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Acknowledgments

We are Grateful Dr. Shiro Yamachika and the sonographers at the ultrasound imaging center in our hospital for invaluable assistance.

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Authors and Affiliations

  1. Department of Cardiovascular Medicine, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan

    Akira Tsuneto, Takako Minami, Yuji Koide, Satoshi Ikeda, Hiroaki Kawano & Koji Maemura

  2. Department of Cardiovascular Surgery, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan

    Kiyoyuki Eishi, Takashi Miura, Kazuyoshi Tanigawa & Seiji Matsukuma

Authors
  1. Akira Tsuneto
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  2. Kiyoyuki Eishi
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  3. Takashi Miura
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  4. Kazuyoshi Tanigawa
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  5. Seiji Matsukuma
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  6. Takako Minami
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  7. Yuji Koide
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  8. Satoshi Ikeda
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  9. Hiroaki Kawano
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  10. Koji Maemura
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Corresponding author

Correspondence to Akira Tsuneto.

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Conflict of interest disclosure statement

Akira Tsuneto received a research Grant from Japan Lifeline Co., Ltd. (Tokyo, Japan). Koji Maemura received lecture fees from MSD Co,. Ltd. (Tokyo, Japan). None of the other authors has any conflicts of interest to declare.

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Tsuneto, A., Eishi, K., Miura, T. et al. Comparison of saddle-shape flexibility and elliptical-shape stability between Cosgrove-Edwards and Memo-3D annuloplasty rings using three-dimensional analysis software. Gen Thorac Cardiovasc Surg 64, 325–332 (2016). https://doi.org/10.1007/s11748-016-0645-0

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  • DOI: https://doi.org/10.1007/s11748-016-0645-0

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