Long-term durability of pericardial valves in the aortic position in younger patients: when does reoperation become necessary?

• 南方, 謙二

• Tanaka, Shiro

• Takahara, Yoshiharu

• Kaneko, Tatsuo

• Usui, Akihiko

• Shimamoto, Mitsuomi

• Okawa, Yohei

• Yaku, Hitoshi

• Yamanaka, Kazuo

• Tamura, Nobushige

• Sakata, Ryuzo

抄録

[Background]We sought to assess the long-term durability of pericardial valves in patients at age <65 years undergoing aortic valve replacement (AVR), and to determine the timing of redo operations due to structural valve deterioration (SVD). [Methods]From 1986 to 2001, a total of 574 adult patients underwent AVR with pericardial valves in nine hospitals in Japan. Of these, 53 patients were at age <65 years (group Y). These patients were compared with those of age ≥65 (group O, n = 521). [Results]The mean follow-up duration was 9.5 years in group Y and 8.1 years in group O. Freedom from reoperation due to SVD was 100% at five years, 90.8% at 10 years, and 47.2% at 15 years in group Y, and 99.3% at five years, 97.4% at 10 years, and 94.4% at 15 years in group O (log-rank test, p < 0.01). In those who required redo AVR in group Y (n = 12), the mean time from initial operation to reoperation was 12.1 years. The reoperation-free survival curve started to decline after eight years postoperation in group Y. [Conclusions]Redo AVR started to become necessary eight years after surgery in the patients who underwent AVR with pericardial valve at age <65 years. In addition, approximately half of those patients required reoperation due to SVD by 15 years postoperatively.

収録刊行物

• Journal of cardiac surgery

  Journal of cardiac surgery 30 (5), 405-413, 2015-03-19

  wiley

詳細情報

• CRID: 1050282810792979328
• NII論文ID: 120005666159
• NII書誌ID: AA10717685
• ISSN: 08860440
• HANDLE: 2433/200705
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles