Perceval valve intermediate outcomes: a systematic review and meta-analysis at 5-year follow-up.

Objectives: New technologies for the treatment of Aortic Stenosis are evolving to minimize risk and treat an increasingly comorbid population. The Sutureless Perceval Valve is one such alternative. Whilst short-term data is promising, limited mid-term outcomes exist, until now. This is the first systematic review and meta-analysis to evaluate mid-term outcomes in the Perceval Valve in isolation.

Methods: A systematic literature review of 5 databases was performed. Articles included evaluated echocardiographic and mortality outcomes beyond 5 years in patients who had undergone Perceval Valve AVR. Two reviewers extracted and reviewed the articles. Weighted estimates were performed for all post-operative and mid-term data. Aggregated Kaplan Meier curves were reconstructed from digitised images to evaluate long-term survival.

Results: Seven observational studies were identified, with a total number of 3196 patients analysed. 30-day mortality was 2.5%. Aggregated survival at 1, 2, 3, 4 and 5 years was 93.4%, 89.4%, 84.9%, 82% and 79.5% respectively. Permanent pacemaker implantation (7.9%), severe paravalvular leak (1.6%), structural valve deterioration (1.5%), stroke (4.4%), endocarditis (1.6%) and valve explant (2.3%) were acceptable at up to mid-term follow up. Haemodynamics were also acceptable at up mid-term with mean-valve gradient (range 9-13.6 mmHg), peak-valve gradient (17.8-22.3 mmHg) and effective orifice area (1.5-1.8 cm) across all valve sizes. Cardiopulmonary bypass (78 min) and Aortic cross clamp times (52 min) were also favourable.

Conclusion: To our knowledge, this represents the first meta-analysis to date evaluating mid-term outcomes in the Perceval Valve in isolation and demonstrates good 5-year mortality, haemodynamic and morbidity outcomes.

Key Question: What are the mid-term outcomes at up to 5 years follow up in Perceval Valve Aortic Valve Replacement?

Key Findings: Perceval Valve AVR achieves 80% freedom from mortality at 5 years with low valve gradients and minimal morbidity.

Key Outcomes: Perceval Valve Aortic Valve Replacement has acceptable mid-term mortality, durability and haemodynamic outcomes.