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Effect of the septal adjustment technique for tricuspid annuloplasty with an MC3 ring

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Abstract

Objectives

Functional tricuspid regurgitation (FTR) is a significant negative prospective factor for long-term survival in patients with mitral valve disease. Tricuspid annuloplasty (TAP) for FTR is recommended as a concomitant procedure during left-sided valvular surgery. The MC3 annuloplasty ring is designed to restore the dilated tricuspid annulus to its natural three-dimensional shape, but selection of the optimal ring size during TAP is sometimes difficult. One solution is the septal adjustment technique (SAT), in which the point of fixation of the septal portion to the septal annulus is adjusted under confirmation with the water test. Here, we evaluated early outcomes with this new technique.

Methods

Between January 2008 and September 2014, 56 patients (mean age 67.6 ± 9.0 years, male/female 28/28) with FTR underwent TAP with an MC3 ring. We retrospectively compared early outcomes, including mortality, morbidity and postoperative residual tricuspid regurgitation (TR), between patients undergoing TAP with the SAT (n = 19, Group A) and those undergoing TAP with the conventional technique (n = 37, Group C).

Results

Although preoperative TR grade was significantly higher in Group A than Group C (3.2 ± 0.6 vs. 2.8 ± 0.6, p = 0.032), postoperative TR grade was significantly lower in Group A than Group C (0.9 ± 0.6 vs. 1.4 ± 0.8, p = 0.039), and TR grade was significantly decreased in Group A compared to Group C (2.2 ± 0.9 vs. 1.4 ± 0.8, p = 0.004). TR area reduction was significantly larger in Group A than in Group C (5.21 ± 2.34 vs. 2.85 ± 3.09, p = 0.006).

Conclusions

The SAT for TAP with an MC3 ring provided better control of postoperative TR than the conventional technique.

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Conflict of interest

All the authors have declared no competing interest.

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Authors and Affiliations

  1. Department of Cardiovascular Surgery, Showa University, Hatanodai 1-5-8, Shinagawa-ku, Tokyo, 142-0064, Japan

    Hiroyuki Kawaura, Atsushi Aoki, Tadashi Omoto, Kazuto Maruta & Hirofumi Iizuka

Authors
  1. Hiroyuki Kawaura
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  2. Atsushi Aoki
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  3. Tadashi Omoto
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  4. Kazuto Maruta
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  5. Hirofumi Iizuka
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Correspondence to Hiroyuki Kawaura.

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Kawaura, H., Aoki, A., Omoto, T. et al. Effect of the septal adjustment technique for tricuspid annuloplasty with an MC3 ring. Gen Thorac Cardiovasc Surg 63, 273–278 (2015). https://doi.org/10.1007/s11748-015-0526-y

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  • DOI: https://doi.org/10.1007/s11748-015-0526-y

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