General thoracic and cardiovascular surgery · 2017
A nationwide survey of aortic valve surgery in Japan: current status of valve preservation in cases with aortic regurgitation.
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Arimura Satoshi, Seki Masahiro, Sasaki Kenichi, Takai Hideaki, Matsuhama Minoru, Kunihara Takashi, Okita Yutaka, Takanashi Shuichiro, Komiya Tatsuhiko, Yaku Hitoshi, Okabayashi Hitoshi, Takemura Hirofumi, Arai Hirokuni, Sawazaki Masaru, Matsui Yoshiro, Shiiya Norihiko
Аннотация
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.
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.