Mechanical haemolytic anaemia assessed with four-dimensional flow cardiac magnetic resonance

Wataru Uchida, Yoshiyuki Tokuda, Yasuo Takehara, Akihiko Usui

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A 66-year-old woman developed marked haemolytic anaemia 2 years after total aortic arch replacement using a branched Dacron graft. Echocardiography confirmed bicuspid aortic valve stenosis. A four-dimensional flow magnetic resonance imaging revealed a jet flow arising from the aortic valve along with the vortex and turbulent flow inside the kinked prosthetic graft at the ascending aorta. She underwent a reoperation to replace the aortic valve and correct the kinking. The estimated energy loss after intervention was relieved to 2.9 mJ/cardiac cycle from 4.3 mJ/cardiac cycle before intervention. The patient's anaemia resolved immediately after the reoperation.

Original languageEnglish
Pages (from-to)813-814
Number of pages2
JournalEuropean Journal of Cardio-thoracic Surgery
Volume56
Issue number4
DOIs
Publication statusPublished - 01-10-2019
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine

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