Aortic Root Replacement 42 Years after Aortic Valve Replacement with the Björk-Shiley Spherical Valve in a Patient with an Aortic Root Aneurysm

Q: What is the clinical evidence from this study?

Study design: Case Report. Population: Aortic root aneurysm and history of aortic valve replacement (n=1). Intervention: Aortic root replacement with a composite graft. Primary outcome: Surgical success and assessment of explanted valve durability.

Q: What does this research mean for the field?

The Björk-Shiley Spherical mechanical heart valve can maintain functional integrity and durability for over 42 years without pannus, thrombus, or structural failure. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

Hidenobu Takaki; Kenichi Hashizume; Mitsuharu Mori; Masatoshi Ohno; T Yasuda

doi:10.4326/jjcvs.50.170

May 15, 2021Japanese Journal of Cardiovascular SurgeryOpen Access

Aortic Root Replacement 42 Years after Aortic Valve Replacement with the Björk-Shiley Spherical Valve in a Patient with an Aortic Root Aneurysm

View Full Paper

Ask AI

Bookmark

Share

Key result

Aortic root replacement succeeds after rare 42-year durability of an explanted Björk-Shiley valve.

n=1

Study Design

Type

Case Report (n=1)

Multicenter

No

PICO

P

Population

A 67-year-old man who underwent aortic root replacement for a 73-mm aortic root aneurysm, 42 years after his initial aortic valve replacement with a Björk-Shiley Spherical valve.

I

Intervention / Comparator

Aortic root replacement with a composite graft

O

Primary Outcome

Surgical success and assessment of explanted valve durability

Limitations

Single case report.
Only computed tomography was used for postoperative evaluation, lacking more detailed imaging.
The manufacturer, Shiley, no longer exists, preventing an official detailed structural evaluation of the explanted valve.

Abstract

症例は67歳男性．感染性心内膜炎による大動脈閉鎖不全症に対して，25歳時に機械弁Björk-Shiley Spherical（BSS) 弁にて大動脈弁置換術，および基部大動脈パッチ拡大術を施行されており，今回基部大動脈が73 mmに拡大したため手術治療となった．胸骨再正中切開にてアプローチし，人工弁を確認したところ血栓やパンヌスは認めず，構造的にも異常を認めず良好に機能していた．しかし今後の経年劣化によるトラブルが起きる可能性も否定できず，BSS弁は摘出し24 mm機械弁を用いたcomposite graftによる基部置換術を行った．BSS弁の長期報告は非常に少なく，本症例は植え込みから42年以上経過後もBSS弁は良好に機能していたが，予防的交換の是非の判断は困難である．患者背景や年齢，術式に応じた総合的な判断が望ましい．

Discussion

No takes yet. Share an insight, caveat, or question.

Cite This Study

Takaki et al. (2021) conducted a case report in Aortic root aneurysm and history of aortic valve replacement (n=1). Aortic root replacement with a composite graft was evaluated on Surgical success and assessment of explanted valve durability. Aortic root replacement was successfully performed in a patient whose explanted Björk-Shiley Spherical valve demonstrated rare 42-year long-term durability without pannus or thrombus formation.

synapsesocial.com/papers/6ad00e6037f5c04ce2aebf81 https://doi.org/10.4326/jjcvs.50.170

View Full Paper

Ask AI

Bookmark

Share

Aortic Root Replacement 42 Years after Aortic Valve Replacement with the Björk-Shiley Spherical Valve in a Patient with an Aortic Root Aneurysm

Study Design

PICO

Limitations

Abstract

Discussion

Cite This Study

Aortic Root Replacement 42 Years after Aortic Valve Replacement with the Björk-Shiley Spherical Valve in a Patient with an Aortic Root Aneurysm

Study Design

PICO

Limitations

Abstract

Discussion

Cite This Study

Keep reading

Keep reading