Fractional flow reserve in acute coronary syndrome: a meta-analysis and systematic review.

Background: The utility of fractional flow reserve (FFR) to guide revascularisation in the management of acute coronary syndrome (ACS) remains unclear.

Objective: This study aims to compare the clinical outcomes of patients following FFR-guided revascularisation for either ACS or stable angina (SA) and in particular focuses on the outcome of those with deferred revascularisation after FFR.

Methods: A meta-analysis of existing literature was performed.

Transcatheter Aortic Valve Implantation versus Surgical Aortic Valve Replacement: Meta-Analysis of Clinical Outcomes and Cost-Effectiveness.

Objective: Transcatheter aortic valve implantation (TAVI) has emerged as a feasible alternative treatment to conventional surgical aortic valve replacement (AVR) for high-risk patients with aortic stenosis. The present systematic review aimed to assess the comparative clinical and cost-effectiveness outcomes of TAVI versus AVR, and meta-analyse standardized clinical endpoints.

Methods: An electronic search was conducted on 9 online databases to identify all relevant studies.