Abstract Introduction Transcatheter edge-to-edge repair (TEER) has been proven to reduce cardiovascular events in a particular subset of patients with severe mitral insufficiency (MR) and left ventricle dysfunction. Nevertheless, its short and long-term impact on the right ventricle (RV) remained to be determined. Our goal was to assess the effect of TEER on the RV and right chamber pressures. Methods Patients were consecutively enrolled from Nov 2018 to Jul 2022. Clinical, laboratory echocardiographic and procedural data were collected. Follow-up information of admissions for heart failure, New York Heart Association (NYHA) functional class and survival was collected. The data was analysed prior to and at 3 and 12 months after the procedure. RV dysfunction was defined as Tricuspid Annular Plane Systolic Excursion (TAPSE) < 17mm or S’ < 9cm/s. Changes between baseline and follow-up parameters were assessed using the paired t-test. Results A total of 46 patients were included. Average age was 77.28 ± 7.92 years and 30 were male (65.2%). Twelve patients were on NYHA class III (26.1%) and most had functional mitral insufficiency (25; 54.3%) and mild to moderate tricuspid insufficiency (36; 78.3%). All patients had severe mitral insufficiency (estimated regurgitant orifice area 41.28 ± 16.77mm; regurgitant volume 62 ± 28.96mL). Seventeen patients had diabetes (37.0%), 10 had coronary artery disease (21.7%), 23 had atrial fibrillation (50.0%) and 6 had chronic kidney disease (13.0%). At 3 months, mean right ventricular/right atrial gradient (RV/RAgrad) was significantly lower (37.26 ± 9.66 mmHg vs 30.81 ± 17.36 mmHg; p 0.017) as well as MR (2.98 ± 0.15 vs 1.67 ± 0.63; p < 0.001). There were no differences regarding severity of tricuspid regurgitation (TR) and RV and left ventricle (LV) function. At 1 year follow-up there was a marked improvement of RV/RAgrad (37.49 ± 10.87 mmHg vs 28.12 ± 10.13 mmHg; p 0.009), TAPSE (18.83 ± 4.22 mm vs 20.88 ± 3.08 mm; p 0.035), S’ (10.81 ± 4.00 cm/s vs 13.5 ± 1.97 cm/s, p 0.015) and MR severity (2.98 ± 0.15 vs 1.83 ± 0.71; p <0.001). Number of heart failure readmissions was also lower at 1 year follow-up post TEER (0.35 ± 0.80 vs 0.81 ± 0.87; p 0.032). Over a mean follow-up time of 1.72 ± 1.16 years, only 8.7% of patients died and 17.4% were readmitted due to heart failure. Conclusion TEER has a positive impact on right ventricle function and pressures. This effect was more prominent at 1 year follow-up and suggests reverse remodelling continues even after 3 months. Overall, patients with TEER had low rates of death and heart failure readmissions.