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Mitral valve repair with patch augmentation for atrial functional mitral regurgitation complicated with giant left atrium

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Abstract

Objective

We aimed to assess the results of posterior leaflet augmentation with an autologous pericardial patch in atrial functional mitral regurgitation.

Methods

Data of 16 patients with atrial functional mitral regurgitation who underwent posterior leaflet patch augmentation for mitral valve repair were retrospectively analyzed. This procedure was applied to a short posterior leaflet with a height of < 10 mm in P2. The median age was 72.5 [67.8–78.3] years. Preoperative New York Heart Association functional class was II in 7 (43.8%) and III or IV in 9 (56.2%) patients. Mitral regurgitation was moderate in 2 (12.5%) and severe in 14 (87.5%) patients.

Results

Operative mortality occurred in 1 (6.2%) patient due to cerebral infarction. One patient required valve replacement because of patch perforation early after operation. Mitral regurgitation was reduced to less than mild in 15 (93.8%) patients and less than trivial in 11 (68.8%) patients (P < 0.01) postoperatively. As for mid-term results, New York Heart Association functional class improved to I or II in 12 (75%) patients (P < 0.01). Two cases of thrombotic complication were observed. Remote recurrent regurgitation occurred in one case due to small patch size. The 3-year free rate of valve-related morbidity and regurgitation recurrence was 65.6% and 87.1%, respectively. The 5-year survival rate was 93.8%.

Conclusions

Pericardial patch augmentation in atrial functional mitral regurgitation leads to good survival and mitral regurgitation recurrence-free rates. Steady anticoagulation and the use of larger patches would be necessary to reduce thrombotic complications and recurrent MR.

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Acknowledgements

The authors wish to thank Dr. Yukio Abe, a Deputy Chief in the Department of cardiology, Osaka City General Hospital, for his helpful assistance to correct the clinical data. We would like to thank Editage (http://www.editage.jp) for English language editing.

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Authors and Affiliations

  1. Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi Abeno-ku, Osaka, 545-8585, Japan

    Yoshito Sakon, Yosuke Takahashi, Hiromichi Fujii, Akimasa Morisaki, Kenta Nishiya, Kokoro Yamane, Noriaki Kishimoto, Takumi Kawase & Toshihiko Shibata

  2. Department of Cardiovascular Surgery, Osaka City General Hospital, Osaka, Japan

    Takashi Murakami

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  1. Yoshito Sakon
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  2. Yosuke Takahashi
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  10. Toshihiko Shibata
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Correspondence to Yosuke Takahashi.

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Sakon, Y., Takahashi, Y., Fujii, H. et al. Mitral valve repair with patch augmentation for atrial functional mitral regurgitation complicated with giant left atrium. Gen Thorac Cardiovasc Surg 71, 104–112 (2023). https://doi.org/10.1007/s11748-022-01833-3

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  • DOI: https://doi.org/10.1007/s11748-022-01833-3

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