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Revista argentina de cardiología

versión On-line ISSN 1850-3748


FAVA, CARLOS et al. Percutaneous Mitral Valve Repair: Initial Experience with MitraClip. Rev. argent. cardiol. [online]. 2019, vol.87, n.3, pp.217-224.  Epub 01-Mayo-2019. ISSN 1850-3748.


To analyze and report our initial outcomes of Percutaneous Mitral Valve Repair (PMVR) with MitraClip® for patients with severe symptomatic Mitral Regurgitation (MR) and high surgical risk.


Between March 2016 and October 2018 twelve consecutive PMVR with MitraClip® were performed in patients with severe symptomatic MR and contraindication or high surgical risk. Implantation Success (IS) was defined as adequate leaflets grasping, leaving < moderate residual MR at the end of the procedure and 30-day Procedural Success when IS was achieved without any Major Adverse Cardiovascular Event (MACE: death, AMI, Stroke, need of valvular surgery, pericardial effusion, tamponade or major bleeding).


Mean age was 74.1±8.9 years, all of them had hypertension and Dyslipemia 7 were men, 3 diabetics, 4 smokers, 5 had previous atrial fibrillation, 2 permanent pacemakers, 3 previous AMI, 2 of them had received PCI and 4 cardiac surgery. The eGFR was 73.8±34.8 ml/m2, 2 had <60 ml/m2 and one on dialysis.

All Ptes were in FC III-IV and history of previous hospitalizations because heart failure. Echocardiographic findings: Left Ventricle End Diastolic Diameter (LVEDD) 61.8±6.4, End Systolic Diameter (LVESD) 46.3±2.1; left ventricular ejection fraction (LVEF) 47.5±13.4 (25-60). MI were degenerative in 7 Ptes and functional in 5.

Risk Scores:

EuroSCORE log was 9.6±6.8, STS for mortality 16.1±13.5 and the STS for morbimortality of 22.8±17.7

EI was achieved in all Ptes; 1 Single Clip was implanted in 7 Pts and 2 Clips in 5; Mean residual post-implantation gradient was 3.6±0.2 mmHg. IS was achieved in all; post-procedural MR was mild in 11 and trivial in one. Mean length of hospital stay was 1.9±0.8 (1-3) days.

At 30 days all were in FC 0-II, no one presented MACE or rehospitalization because heart failure.

Follow-Up was performed in all Ptes with an average time of 8.8±6.7 (1-30) months. Two patients died (1 from pneumonia at 14 months and another at 30 months due to refractory cardiac failure after TAVI, maintaining mild MR.) There were no other complications, all were in FC I-II, one required rehospitalization due to heart failure (at 7 month). Echo Doppler at follow-Up showed that 11 Ptes had <2 MR and 1 had >2 MR. The QOL improved during the follow-up


In this initial series, from a single center that includes the learning curve of the team, PMVR with MitraClip® in Ptes with severe mitral regurgitation and high surgical risk was safe and effective, with a significant clinical improvement at follow-up

Palabras clave : Edge-to-edge; MitraClip®; Mitral regurgitation.

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