UZH-Logo

Maintenance Infos

Two-year outcomes after percutaneous mitral valve repair with the MitraClip system: durability of the procedure and predictors of outcome


Toggweiler, Stefan; Zuber, Michel; Sürder, Daniel; Biaggi, Patric; Gstrein, Christine; Moccetti, Tiziano; Pasotti, Elena; Gaemperli, Oliver; Faletra, Francesco; Petrova-Slater, Iveta; Grünenfelder, Jürg; Jamshidi, Peiman; Corti, Roberto; Pedrazzini, Giovanni; Lüscher, Thomas F; Erne, Paul (2014). Two-year outcomes after percutaneous mitral valve repair with the MitraClip system: durability of the procedure and predictors of outcome. Open Heart, 1(1):e000056.

Abstract

OBJECTIVE Analyse 2-year outcomes after MitraClip therapy and identify predictors of outcome. METHODS Consecutive patients (n=74) undergoing MitraClip therapy were included in the MitraSWISS registry and followed prospectively. RESULTS A reduction of mitral regurgitation (MR) to ≤ mild was achieved in 32 (43%) patients and to moderate in 31 (42%) patients; 16/63 (25%) patients with initially successful treatment developed recurrent moderate to severe or severe MR during the first year and only 1 patient did so during the second year. At 2 years, moderate or less MR was more frequently present in patients with a transmitral mean gradient <3 mm Hg at baseline (73% vs 23%, p < 0.01) and in patients with a left atrial volume index (LAVI) <50 mL/m(2) at baseline (86% vs 52%, p=0.03). More than mild MR post MitraClip, N-terminal probrain natriuretic peptide ≥5000 ng/L at baseline, chronic obstructive pulmonary disease (COPD) and chronic kidney disease (CKD) were associated with reduced survival. CONCLUSIONS A mean transmitral gradient <3 mm Hg at baseline, an LAVI <50 mL/m(2), the absence of COPD and CKD, and reduction of MR to less than moderate were associated with favourable outcome. Given a suitable anatomy, such patients may be excellent candidates for MitraClip therapy. Between 1 and 2 years follow-up, clinical and echocardiographic outcomes were stable, suggesting favourable, long-term durability of the device.

OBJECTIVE Analyse 2-year outcomes after MitraClip therapy and identify predictors of outcome. METHODS Consecutive patients (n=74) undergoing MitraClip therapy were included in the MitraSWISS registry and followed prospectively. RESULTS A reduction of mitral regurgitation (MR) to ≤ mild was achieved in 32 (43%) patients and to moderate in 31 (42%) patients; 16/63 (25%) patients with initially successful treatment developed recurrent moderate to severe or severe MR during the first year and only 1 patient did so during the second year. At 2 years, moderate or less MR was more frequently present in patients with a transmitral mean gradient <3 mm Hg at baseline (73% vs 23%, p < 0.01) and in patients with a left atrial volume index (LAVI) <50 mL/m(2) at baseline (86% vs 52%, p=0.03). More than mild MR post MitraClip, N-terminal probrain natriuretic peptide ≥5000 ng/L at baseline, chronic obstructive pulmonary disease (COPD) and chronic kidney disease (CKD) were associated with reduced survival. CONCLUSIONS A mean transmitral gradient <3 mm Hg at baseline, an LAVI <50 mL/m(2), the absence of COPD and CKD, and reduction of MR to less than moderate were associated with favourable outcome. Given a suitable anatomy, such patients may be excellent candidates for MitraClip therapy. Between 1 and 2 years follow-up, clinical and echocardiographic outcomes were stable, suggesting favourable, long-term durability of the device.

Altmetrics

Downloads

25 downloads since deposited on 12 Feb 2015
16 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Cardiology
04 Faculty of Medicine > Cardiocentro Ticino
Dewey Decimal Classification:610 Medicine & health
Date:2014
Deposited On:12 Feb 2015 10:31
Last Modified:05 Apr 2016 18:53
Publisher:BMJ Publishing Group
ISSN:2053-3624
Publisher DOI:https://doi.org/10.1136/openhrt-2014-000056
PubMed ID:25332799
Permanent URL: https://doi.org/10.5167/uzh-105988

Download

[img]
Preview
Filetype: PDF
Size: 1MB
View at publisher

TrendTerms

TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents.
You can navigate and zoom the map. Mouse-hovering a term displays its timeline, clicking it yields the associated documents.

Author Collaborations