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Current devices and interventions in mitral regurgitation

Aktuelle interventionelle Therapieverfahren der Mitralklappeninsuffizienz

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Abstract

Mitral regurgitation (MR) is the most common valvular disease. With a rising incidence in older age, the prevalence of relevant comorbidities inevitably increases. Considering the constantly aging population with high surgical risk, transcatheter therapy of MR is gaining increasing importance. Interventional therapy of either primary or secondary MR represents an alternative to pure drug or surgical therapy. With mitral valve transcatheter edge-to-edge repair, a well-established treatment has evolved in the past two decades. In addition, direct or indirect annuloplasty and ultimately transcatheter mitral valve implantation further expand the armamentarium. The current broad spectrum of interventional therapy options allows for patient-oriented therapy individually targeting different MR pathologies. This review discusses the current landscape of transcatheter therapies for relevant MR.

Zusammenfassung

Die Mitralklappeninsuffizienz (MI) stellt die häufigste Herzklappenerkrankung dar. Mit einer steigenden Inzidenz im Alter erhöht sich zwangsweise die Prävalenz relevanter Komorbiditäten. In Anbetracht des alternden Patientenkollektivs mit hohem perioperativem Risiko erlangt die interventionelle Versorgung der MI zunehmende Bedeutung. Die interventionelle Therapie der primären sowie sekundären MI stellt somit eine Alternative zur rein medikamentösen bzw. chirurgischen Therapie dar. Während sich in den letzten 2 Dekaden v. a. das Verfahren der Edge-to-Edge-Therapie etablierte, ermöglichen auch andere Therapieoptionen wie eine direkte oder indirekte Annuloplastie sowie nicht zuletzt der interventionelle Mitralklappenersatz eine individuelle Therapieoption. Das aktuell breite Spektrum an interventionellen Verfahren ermöglicht eine patientenorientierte Therapie, die individuell auf die unterschiedlichen Pathologien der MI abzielt. Die vorliegende Übersicht erörtert die aktuellen kathetergestützten Therapien zur Behandlung der relevanten MI.

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Abbreviations

COAPT:

Cardiovascular Outcomes Assessment of the MitraClip Percutaneous Therapy for Heart Failure Patients with Functional Mitral Regurgitation trial

CRT:

Cardiac resynchronization therapy

EPTFE:

Expanded polytetrafluoroethylene

EROA:

Effective regurgitant orifice area

ESC:

European Society of Cardiology

HF:

Heart failure

HFrEF:

Heart failure with reduced left ventricular ejection fraction

LA:

Left atrium

LV:

Left ventricle

LVEF:

Left ventricular ejection fraction

LVOT:

Left ventricular outflow tract

MITRA-FR:

Percutaneous Repair with the MitraClip Device for Severe Functional/Secondary Mitral Regurgitation trial

MR:

Mitral regurgitation

M‑TEER:

Mitral valve transcatheter edge-to-edge repair

MV:

Mitral valve

NT-proBNP:

N‑terminal pro-B-type natriuretic peptide

NYHA:

New York Heart Association

PMR:

Primary (degenerative) mitral regurgitation

SMR:

Secondary (functional) mitral regurgitation

STS:

Society of Thoracic Surgeons

TMVI:

Transcatheter mitral valve implantation

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Correspondence to Edith Lubos MD.

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Conflict of interest

E. Lubos (EL) and D. Kalbacher (DK) received speaker honoraria and travel expenses from Abbott and Edwards LifeSciences, research grants (EL) from Abbott, proctor fees (DK) from Edwards LifeSciences, and honoraria for advisory board activities (EL) from Cardiovalve. B. Koell declares that he has no competing interests.

For this article no studies with human participants or animals were performed by any of the authors. All studies performed were in accordance with the ethical standards indicated in each case.

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Koell, B., Kalbacher, D. & Lubos, E. Current devices and interventions in mitral regurgitation. Herz 46, 419–428 (2021). https://doi.org/10.1007/s00059-021-05055-w

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