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[Left Ventricular Outflow Tract Obstruction After Transcatheter Aortic Valve Replacement due to Pannus Formation].
- Source :
-
Kyobu geka. The Japanese journal of thoracic surgery [Kyobu Geka] 2024 Mar; Vol. 77 (3), pp. 191-195. - Publication Year :
- 2024
-
Abstract
- We experienced a case of surgical aortic valve re-replacement due to structural valve deterioration caused by pannus formation 4 years after transcatheter aortic valve replacement( TAVR). The patient underwent surgery because the mean transvalvular pressure gradient increased to 48 mmHg on echocardiography. Contrast-enhanced computed tomography (CT) was useful for predicting the site of adhesion to surrounding tissue preoperatively and exploring the presence of the pannus. Intraoperative findings showed the TAVR valve was covered with neointima except around the origins of the left and right coronary arteries and was firmly adhered to the surrounding tissues. As residual pannus was present in the subvalvular tissues, it was carefully removed. The explanted TAVR valve functioned well with good opening and closure. The postoperative course was uneventful. Pannus formation can result from mechanical stress. TAVR valves put significantly greater stress on the left ventricular outflow tract than surgical valves and may be more likely to cause pannus formation.
- Subjects :
- Humans
Pannus
Aortic Valve diagnostic imaging
Aortic Valve surgery
Treatment Outcome
Transcatheter Aortic Valve Replacement adverse effects
Heart Valve Prosthesis Implantation adverse effects
Ventricular Outflow Obstruction, Left
Aortic Valve Stenosis diagnostic imaging
Aortic Valve Stenosis surgery
Heart Valve Prosthesis adverse effects
Ventricular Outflow Obstruction diagnostic imaging
Ventricular Outflow Obstruction etiology
Ventricular Outflow Obstruction surgery
Subjects
Details
- Language :
- Japanese
- ISSN :
- 0021-5252
- Volume :
- 77
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Kyobu geka. The Japanese journal of thoracic surgery
- Publication Type :
- Academic Journal
- Accession number :
- 38465491