Intracardiac echocardiography to diagnose pannus formation after aortic valve replacement

Yoshiya Yamamoto, Takahiro Ohara, Akira Funada, Hiroyuki Takahama, Makoto Amaki, Takuya Hasegawa, Yasuo Sugano, Hideaki Kanzaki, Toshihisa Anzai

Research output: Contribution to journalArticlepeer-review


A 66-year-old female, under regular follow-up for 20 years after aortic valve replacement (19-mm Carbomedics), presented dyspnea on effort and hypotension during hemodialysis. A transthoracic echocardiogram showed elevation of transvalvular velocity up to 4 m/s, but the structure around the aortic prosthesis was difficult to observe due to artifacts. Fluoroscopy revealed normal motion of the leaflets of the mechanical valve. Intracardiac echocardiography (ICE) revealed a pannus-like structure in the left ventricular outflow tract. Transesophageal echocardiogram also revealed this structure. ICE can visualize structural abnormalities around a prosthetic valve after cardiac surgery even in patients in whom conventional imaging modalities failed.

Original languageEnglish
Pages (from-to)39-41
Number of pages3
JournalJournal of Echocardiography
Issue number1
Publication statusPublished - 2016 Mar 1
Externally publishedYes


  • Intracardiac echocardiography
  • Pannus formation
  • Prosthetic aortic valve
  • Transesophageal echocardiography

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


Dive into the research topics of 'Intracardiac echocardiography to diagnose pannus formation after aortic valve replacement'. Together they form a unique fingerprint.

Cite this