Pulmonary Artery Pressure Before and After Mitraclip

Background: MitraClip as a safe procedure for high-surgical patient is associated with good results in reducing mitral regurgitation (MR). Many patients are presenting also with elevation pulmonary artery pressure. We assessed the impact of this technique on pulmonary hypertension (PHTN).

Methods: We studied a cohort of 52 patients who underwent MitraClip implantation at the Hadassah Medical Center between October 2015 and December 2017. We evaluated (PHTN) by echocardiography and calculated the estimated pulmonary artery pressure (PAP), before and after Mitraclip procedure in patients with severe MR.

Results: Patients mean age was 73.16 years, 76.5% - were males. Reduction of MR from 4+ to 1+ was achieved in 34 patients (66.7%). Only 3 patients (5.8%) remained with severe MR after the procedure. 12 patients were excluded due to missing data.

The average estimated (PAP) before procedure was 54.1 ± 16.6 and after procedure 48.8 ± 14, p60 mmHg). The number of patients in this group was decreased from 17 to 8 patients after the procedure (Fig. 1).

Conclusions: Mitraclip therapy improved PHTN and showed decrease in PAP in patient with severe MR. This procedure might be considered in this population to improve PHNT that is secondary to elevated left-sided pressures.