2023 Volume 52 Issue 4 Pages 235-238
A 75-year-old woman underwent PTMC and TAVI for heart failure due to severe MS and AS 6 years ago. The patient did not receive surgical treatment because of the patient's history of ITP, depression, and Alzheimer's disease. The patient had been suffering from heart failure due to re-exacerbation of valvular heart disease 3 months earlier. We decided to perform surgery because of the difficulty of catheter treatment. Preoperative examination revealed narrowing of the mitral annulus, and there was a risk of interference with TAVI in conventional MVR. Therefore, we used a composite graft with a biological valve to perform MVR in a supra-annular position. We achieved good results without interference with the TAVI. Although several methods of mitral valve replacement for narrow valve annulus have been reported, a technique similar to this have been previously reported as the “Bio-chimney method” . It can be an effective treatment; however, the number of cases is small and the method's long-term results require further investigation.
