Treatment of Mitral Regurgitation Using a Minimally Invasive Approach With the HARPOON Device.

Assessment of the Safety and Performance of the HARPOON™ Beating Heart Mitral Valve Repair System; a Multi-center Post-market Study (ASCEND)

To evaluate the long-term safety and performance of the HARPOON™ MVRS for use in patients presenting with severe degenerative mitral regurgitation due to posterior leaflet prolapse in the post-market phase.

This trial is a single arm, prospective, multi-center, non-randomized and open-label post-market study that will evaluate subjects for up to 5 years post treatment.

Inclusion Criteria:

1. Subject is > 18 years old
2. Presence of severe MR as read on a transthoracic echocardiographic study
3. Mitral leaflet coaptation surface is sufficient to reduce mitral regurgitation without undue leaflet tension (approximate leaflet to gap ratio of 2:1) based on the judgment of the patient eligibility committee and the operating surgeon
4. Degenerative mitral valve disease with mid-segment P2 prolapse
5. Patient is able to sign informed consent and able to return for follow-up and is capable of participating in all testing associated with this clinical investigation

Exclusion Criteria:

1. Patient is of the age where further growth is expected
2. Active endocarditis
3. Left ventricular or left atrial appendage thrombus
4. Severe mitral annular and/or leaflet calcification
5. Cannot tolerate procedural anticoagulation or post-procedure antiplatelet regimen
6. Mitral stenosis
7. Functional Mitral Valve disease
8. Previous mitral valve replacement surgery
9. Fragile or thinning apex
10. Contraindications to transoesophageal echocardiography (atlantoaxial disease, severe generalized cervical arthritis, upper gastrointestinal bleeding, significant dysphagia and odynophagia, has received extensive radiation to the mediastinum)
11. Patient is pregnant or lactating