Faculty Collaboration Database

Prospective Evaluation of Transseptal TMVR for Failed Surgical Bioprostheses: MITRAL Trial Valve-in-Valve Arm 1-Year Outcomes. JACC Cardiovasc Interv 2021 Apr 26;14(8):859-872

Date

04/24/2021

Pubmed ID

33888231

DOI

10.1016/j.jcin.2021.02.027

Scopus ID

2-s2.0-85103927122 (requires institutional sign-in at Scopus site)   42 Citations

Abstract

OBJECTIVES: The aim of this study was to assess 1-year clinical outcomes among high-risk patients with failed surgical mitral bioprostheses who underwent transseptal mitral valve-in-valve (MViV) with the SAPIEN 3 aortic transcatheter heart valve (THV) in the MITRAL (Mitral Implantation of Transcatheter Valves) trial.

BACKGROUND: The MITRAL trial is the first prospective study evaluating transseptal MViV with the SAPIEN 3 aortic THV in high-risk patients with failed surgical mitral bioprostheses.

METHODS: High-risk patients with symptomatic moderate to severe or severe mitral regurgitation (MR) or severe mitral stenosis due to failed surgical mitral bioprostheses were prospectively enrolled. The primary safety endpoint was technical success. The primary THV performance endpoint was absence of MR grade ≥2+ or mean mitral valve gradient ≥10 mm Hg (30 days and 1 year). Secondary endpoints included procedural success and all-cause mortality (30 days and 1 year).

RESULTS: Thirty patients were enrolled between July 2016 and October 2017 (median age 77.5 years [interquartile range (IQR): 70.3 to 82.8 years], 63.3% women, median Society of Thoracic Surgeons score 9.4% [IQR: 5.8% to 12.0%], 80% in New York Heart Association functional class III or IV). The technical success rate was 100%. The primary performance endpoint in survivors was achieved in 96.6% (28 of 29) at 30 days and 82.8% (24 of 29) at 1 year. Thirty-day all-cause mortality was 3.3% and was unchanged at 1 year. The only death was due to airway obstruction after swallowing several pills simultaneously 29 days post-MViV. At 1-year follow-up, 89.3% of patients were in New York Heart Association functional class I or II, the median mean mitral valve gradient was 6.6 mm Hg (interquartile range: 5.5 to 8.9 mm Hg), and all patients had MR grade ≤1+.

CONCLUSIONS: Transseptal MViV in high-risk patients was associated with 100% technical success, low procedural complication rates, and very low mortality at 1 year. The vast majority of patients experienced significant symptom alleviation, and THV performance remained stable at 1 year.

Author List

Guerrero M, Pursnani A, Narang A, Salinger M, Wang DD, Eleid M, Kodali SK, George I, Satler L, Waksman R, Meduri CU, Rajagopal V, Inglessis I, Palacios I, Reisman M, Eng MH, Russell HM, Pershad A, Fang K, Kar S, Makkar R, Saucedo J, Pearson P, Bokhary U, Kaptzan T, Lewis B, Tommaso C, Krause P, Thaden J, Oh J, Lang RM, Hahn RT, Leon MB, O'Neill WW, Feldman T, Rihal C

Author

Paul Joseph Pearson MD, PhD Chief, Professor in the Surgery department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Aged
Aged, 80 and over
Bioprosthesis
Cardiac Catheterization
Female
Heart Valve Prosthesis
Heart Valve Prosthesis Implantation
Humans
Male
Mitral Valve Annuloplasty
Prospective Studies
Prosthesis Design
Treatment Outcome