Repair for Mitral Stenosis Due to Pannus Formation After Duran Ring Annuloplasty

How Does Mitral Valve Repair Fail in Patients With Prolapse?—Insights From Longitudinal Echocardiographic Follow-Up

“…Overall, the incidence of mitral stenosis late after mitral repair is rare. Case reports have described excess pannus formation after mitral annuloplasty with the Duran Annuloplasty, which occurred late after the initial repair [19,20]. Overall, the freedom from reoperation in this cohort was 97% at 5 years and 96% at 10 years after the repair, which agrees well with the published literature [5,[8][9][10].…”

Assessment of mitral annuloplasty ring by cardiac computed tomography: Correlation with echocardiographic parameters and comparison between two different ring types

“…[1][2][3][4][5] MS after ring annuloplasty has been reported to be mostly caused by pannus overgrowth from the annuloplasty ring, and the type of annuloplasty ring used has been believed to be related to pannus development. [6][7][8][9][10] Pannus formation is considered to be a foreign-body reaction to the synthetic annuloplasty ring and has been observed frequently after insertion of the flexible Duran annuloplasty ring (Medtronic, Inc, Minneapolis, Minn). [6][7][8][9][10] Recently, cardiac computed tomography (CT) has emerged as a novel technique to evaluate cardiac valves, including prosthetic valves.…”

“…[6][7][8][9][10] Pannus formation is considered to be a foreign-body reaction to the synthetic annuloplasty ring and has been observed frequently after insertion of the flexible Duran annuloplasty ring (Medtronic, Inc, Minneapolis, Minn). [6][7][8][9][10] Recently, cardiac computed tomography (CT) has emerged as a novel technique to evaluate cardiac valves, including prosthetic valves. Little is known, however, regarding CT appearance after MV repair.…”

Clinical evaluation of functional mitral stenosis after mitral valve repair for degenerative disease: Potential affect on surgical strategy

“…It has been reported in the context of pannus overgrowth from the annuloplasty ring, and also in patients who have received small mitral annuloplasty rings. 6,7 The type of ring annuloplasty may also predispose to the development of mitral stenosis following valve repair. 8 Novel in vivo preclinical data confirms that commonly used annuloplasty rings reduce the maximum mitral valve opening despite true-sizing.…”