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General Thoracic and Cardiovascular Surgery

, Volume 65, Issue 8, pp 429–434 | Cite as

A nationwide survey of aortic valve surgery in Japan: current status of valve preservation in cases with aortic regurgitation

  • Satoshi Arimura
  • Masahiro Seki
  • Kenichi Sasaki
  • Hideaki Takai
  • Minoru Matsuhama
  • Takashi Kunihara
  • Yutaka Okita
  • Shuichiro Takanashi
  • Tatsuhiko Komiya
  • Hitoshi Yaku
  • Hitoshi Okabayashi
  • Hirofumi Takemura
  • Hirokuni Arai
  • Masaru Sawazaki
  • Yoshiro Matsui
  • Norihiko Shiiya
Current Topics Review Article

Abstract

Objective

Although aortic valve-sparing operations are performed throughout Japan, the indications, specific repair techniques, and outcomes have not been reported in full. Thus, we conducted the first nationwide survey of aortic valve-sparing surgery.

Methods

We mailed a questionnaire to 508 institutions across Japan to obtain information on elective aortic valve and aortic root surgeries performed in 2014. Included in the mailing was a secondary questionnaire that sought further information from institutions reporting aortic valve-sparing surgeries.

Results

Two hundred and fifty (49%) institutions responded and reported a total of 7859 aortic valve operations and 771 aortic root operations. Aortic valve operations performed strictly for aortic regurgitation totaled 2080, 156 (8%) of which were aortic valve repairs. Of the 699 aortic root surgeries performed for aortic regurgitation, 236 (34%) were valve-sparing root replacement surgeries. The valve-sparing root replacement surgeries comprised aortic valve reimplantation (n = 173, 73%) and aortic root remodeling (n = 63, 27%). Five of 57 (9%) institutions were responsible for 42% (99/233) of the total aortic valve-sparing surgeries performed. Detailed information that was obtained for 233 patients who underwent aortic valve repair or valve-sparing root replacement showed 30-day mortality and reoperation for regurgitation after aortic valve repair (n = 97), aortic root remodeling (n = 37), and aortic valve reimplantation (n = 99) to be 1, 0, and 1% and 3, 3, and 1%, respectively.

Conclusion

To date, aortic valve-sparing operations have been performed for limited patients at limited institution in Japan, but the early outcomes have been excellent.

Keywords

Valve-sparing root replacement Aortic valve repair Aortic regurgitation Remodeling Reimplantation 

Notes

Compliance with ethical standards

Conflict of interest

All the authors have declared no competing interest.

References

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Copyright information

© The Japanese Association for Thoracic Surgery 2017

Authors and Affiliations

  • Satoshi Arimura
    • 1
  • Masahiro Seki
    • 1
  • Kenichi Sasaki
    • 1
  • Hideaki Takai
    • 1
  • Minoru Matsuhama
    • 1
  • Takashi Kunihara
    • 1
  • Yutaka Okita
    • 2
  • Shuichiro Takanashi
    • 3
  • Tatsuhiko Komiya
    • 4
  • Hitoshi Yaku
    • 5
  • Hitoshi Okabayashi
    • 6
  • Hirofumi Takemura
    • 7
  • Hirokuni Arai
    • 8
  • Masaru Sawazaki
    • 9
  • Yoshiro Matsui
    • 10
  • Norihiko Shiiya
    • 11
  1. 1.Department of Cardiovascular SurgeryThe Cardiovascular InstituteTokyoJapan
  2. 2.Division of Cardiovascular Surgery, Department of SurgeryKobe University Graduate School of MedicineKobeJapan
  3. 3.Department of Cardiovascular SurgerySakakibara Heart InstituteTokyoJapan
  4. 4.Department of Cardiovascular SurgeryKurashiki Central HospitalKurashikiJapan
  5. 5.Department of Cardiovascular SurgeryKyoto Prefectural University of MedicineKyotoJapan
  6. 6.Department of Cardiovascular SurgeryIwate Medical UniversityMoriokaJapan
  7. 7.Department of Thoracic, Cardiovascular and General SurgeryKanazawa UniversityKanazawaJapan
  8. 8.Department of Cardiovascular SurgeryTokyo Medical and Dental University Graduate School of Medical and Dental SciencesTokyoJapan
  9. 9.Department of Cardiovascular Surgery, Heart Valve CenterKomaki City HospitalKomakiJapan
  10. 10.Department of Cardiovascular and Thoracic SurgeryHokkaido University Graduate School of MedicineSapporoJapan
  11. 11.First Department of SurgeryHamamatsu University School of MedicineHamamatsuJapan

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