Infective endocarditis involving MitraClip© devices: a systematic literature review

Author:

Bertolino Lorenzo,Ramadan Mohammad Said,Zampino Rosa,Durante-Mangoni Emanuele

Abstract

Abstract Purpose Progress of interventional cardiology has boosted the use of newer cardiac devices. These devices are perceived to be less prone to infections compared to traditional surgical prostheses, but little data are currently available. In this systematic review (SR), we summarize current literature regarding the clinical characteristics, management, and outcomes of patients with MitraClip-related infective endocarditis (IE). Methods We conducted a SR of PubMed, Google Scholar, Embase, and Scopus between January 2003 and March 2022. MitraClip-related IE was defined according to 2015 ESC criteria whereas MitraClip involvement as vegetation on the device or on the mitral valve. Risk of bias was assessed through standardized checklist and potential bias of underestimation cannot be excluded. Data regarding clinical presentation, echocardiography, management, and outcome were collected. Results Twenty-six cases of MitraClip-related IE were retrieved. The median age of patients was 76 [61–83] years with a median EuroScore of 41%. Fever was present in 65.8% of patients followed by signs and symptoms of heart failure (42.3%). IE occurred early in 20 (76.9%) cases with a median time between MitraClip implantation and IE symptom onset of 5 [2–16] months. Staphylococcus aureus was the major causative microorganism (46%). Surgical mitral valve replacement was needed in 50% of patients. A conservative medical approach was considered in the remainder. The overall in-hospital mortality rate was 50% (surgical group: 38.4%; medical group: 58.3%; p = 0.433). Conclusion Our results suggest that MitraClip-related IE affects elderly, comorbid patients, is mostly due to Staphylococcus aureus, and has a poor prognosis irrespective of the therapeutic approach. Clinicians must be aware of the features of this new entity among cardiovascular infections.

Funder

Università degli Studi della Campania Luigi Vanvitelli

Publisher

Springer Science and Business Media LLC

Subject

Infectious Diseases,Microbiology (medical),General Medicine

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