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Open research questions in Cardiac Valve Diseases and Treatments

270 unresolved questions extracted from the limitations and future-work sections of 774 Cardiac Valve Diseases and Treatments papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • One challenge is the need for effective sedation during tf-TAVI without compromising patient safety. Another challenge is the lack of studies comparing the effectiveness of different sedatives in tf-TAVI. A technical challenge is the need for precise control of sedation levels during the procedure.

    Remimazolam Versus Dexmedetomidine for Monitored Anesthesia Care in Patients Undergoing Transfemoral Transcatheter Aortic Valve Implantation: A Randomized Clinical Trial · 2026 · DOI

  • Further studies are needed to compare the effects of remimazolam and dexmedetomidine in different patient populations, - Studies with larger sample sizes are needed to confirm the findings, - Research on the long-term outcomes of patients undergoing tf-TAVI with remimazolam or dexmedetomidine is needed

    Remimazolam Versus Dexmedetomidine for Monitored Anesthesia Care in Patients Undergoing Transfemoral Transcatheter Aortic Valve Implantation: A Randomized Clinical Trial · 2026 · DOI

  • The paper identifies the challenge of predicting calcification risk in prosthetic aortic valves as a complex problem. It highlights the need for a reliable method that can account for the various factors influencing calcification risk. The paper also discusses the challenge of validating the proposed approach against experimental data.

    Predicting calcification risk in prosthetic aortic valves: a hybrid physics-based and machine learning approach · 2026 · DOI

  • The paper identifies the lack of a reliable method for predicting calcification risk in prosthetic aortic valves as a significant research gap. It also highlights the limitations of current bioprosthetic valves in terms of structural valve degeneration.

    Predicting calcification risk in prosthetic aortic valves: a hybrid physics-based and machine learning approach · 2026 · DOI

  • The complexity of mitral regurgitation and its relationship with aortic stenosis. The need to develop effective treatment strategies for patients with multivalvular disease. The challenge of evaluating the identification value of echocardiographic parameters.

    The identification value of common echocardiography parameters for improvement of mitral regurgitation after transcatheter aortic valve replacement in patients with aortic stenosis · 2026 · DOI

  • The lack of understanding of the factors influencing mitral regurgitation improvement in patients with aortic stenosis after transcatheter aortic valve replacement. The need to evaluate the identification value of echocardiographic parameters.

    The identification value of common echocardiography parameters for improvement of mitral regurgitation after transcatheter aortic valve replacement in patients with aortic stenosis · 2026 · DOI

  • exploration of valve-specific epigenetic mechanisms, - investigation of the role of TGFβ signaling in MMVP, - study of the molecular mechanisms underlying rheumatic mitral stenosis

    Mechanisms of mitral valve development and disease · 2026 · DOI

  • The lack of understanding of the distinct etiologies and molecular mechanisms of mitral valve diseases. The limited knowledge of the structural consequences and disease-specific mechanisms of mitral valve diseases. The need for a comprehensive review of the current state of knowledge on mitral valve disease.

    Mechanisms of mitral valve development and disease · 2026 · DOI

  • further research is needed to determine the added benefit of including CBI into the home-based exercise program, - larger studies are needed to confirm the findings, - research on the long-term effects of the home-based exercise program is needed

    Home‐Based Rehabilitation After Transcatheter Aortic Valve Replacement ( REHAB ‐ TAVR ): A Pilot Randomized Controlled Trial · 2025 · DOI

  • The complexity of the relationship between diabetes and outcomes after aortic valve replacement. The limited and inconsistent nature of the current literature on this topic. The need for further study to understand the predictors of adverse outcomes in diabetic patients undergoing TAVR or SAVR.

    Diabetes and calcific aortic valve disease: controversy of clinical outcomes in diabetes after aortic valve replacement · 2025 · DOI

  • No effective pharmacotherapies to retard or reverse the progression of CAVD, - The association between diabetes and outcomes after TAVR procedure remained controversial, - The impact of diabetes on clinical outcomes and various complications after SAVR is not fully understood

    Diabetes and calcific aortic valve disease: controversy of clinical outcomes in diabetes after aortic valve replacement · 2025 · DOI

  • the study had a relatively small number of patients in the TBra and TCav groups, - the study was an observational analysis, - the study was limited to patients with hostile iliofemoral anatomy

    The NORTh Europe HOStile access TAVI (NORTHOSTAVI) registry · 2025 · DOI

  • further studies are needed to compare the outcomes of different access routes in larger patient populations, - research is needed to identify the optimal access route for patients with hostile iliofemoral anatomy, - studies should investigate the long-term outcomes of TAVI using various endovascular transarterial access routes

    The NORTh Europe HOStile access TAVI (NORTHOSTAVI) registry · 2025 · DOI

  • Finally, we explored selecting subsets of a large pool of pre-computed simulations to personalize model predictions for a small population or individual where insufficient data are available to refit the entire model.

    Multiscale model calibrated with a Bayesian algorithm predicts long-term outcomes of treatments for mitral valve regurgitation in animal models · 2026 · DOI

  • Abstract Background New-onset persistent left bundle branch block (NOP-LBBB) is a frequent complication after transcatheter aortic valve implantation (TAVI), but its long-term prognostic impact remains controversial.

    Impact of persistent left bundle branch block on ventricular function and clinical outcomes after transcatheter aortic valve implantation: a systematic review and meta-analysis · 2026 · DOI

  • However, longer-term follow-up is warranted to better define the impact of this strategy on late ischemic outcomes, particularly as TAVI is increasingly performed in younger patients with longer life expectancy.

    Prior percutaneous coronary intervention versus deferral in patients undergoing transcatheter aortic valve implantation: a systematic review and meta-analysis of randomized controlled trials · 2026 · DOI

  • Background Coronary artery disease (CAD) is highly prevalent among patients undergoing transcatheter aortic valve implantation (TAVI), yet the optimal management of concomitant coronary lesions remains uncertain.

    Prior percutaneous coronary intervention versus deferral in patients undergoing transcatheter aortic valve implantation: a systematic review and meta-analysis of randomized controlled trials · 2026 · DOI

  • Global longitudinal strain (GLS) can detect subtle impairment earlier, but its behaviour during exercise stress testing in this context has not been thoroughly assessed.

    Global longitudinal strain in stress test of asymptomatic severe aortic stenosis: a focused meta-analysis · 2026 · DOI

  • OBJECTIVE: The optimal reoperation strategy and long-term outcomes of pediatric patients with congenital aortic stenosis (AS) have not been well elucidated.

    The journey from repair to replacement in pediatric aortic valve stenosis: a 10-year single-center experience · 2026 · DOI

  • Existing trial evidence for this population is scarce, requiring further safety analysis.

    The Impact of Preexisting Cardiac Implantable Electronic Devices on the Safety of Transcatheter Tricuspid Valve Interventions: A Systematic Review and Meta-Analysis · 2026 · DOI

  • Despite the increasing emphasis on the pathological significance of RV changes in AS, it remains to be established if earlier detection of these changes can improve the timing for intervention.

    Evolving perspectives on aortic stenosis: the increasing importance of evaluating the right ventricle before aortic valve intervention · 2025 · DOI

  • Future research should focus on overcoming these challenges while enhancing collaboration among international institutions to further advance AI applications in cardiovascular medicine.

    The role of artificial intelligence in aortic valve stenosis: a bibliometric analysis · 2025 · DOI

  • Background Comparative long-term survival outcomes between transcatheter (TAVR) and surgical (SAVR) aortic valve replacement remain debated.

    Surgical and transcatheter aortic valve replacement align survival with general population expectations: insights from standardized mortality ratios · 2025 · DOI

  • Among them, PCI after TAVI may effectively reduce all-cause mortality, cardiovascular mortality, and stroke, but the interval between the two procedures remains uncertain.

    Comparison of different timings of percutaneous coronary intervention in patients with transcatheter aortic valve implantation: a network meta-analysis · 2025 · DOI

  • Subclinical leaflet thrombosis is observed in 10%-20% of patients, though its clinical significance remains uncertain.

    Optimal antithrombotic therapy after transcatheter aortic valve replacement: a comprehensive review · 2025 · DOI

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270 open questions have been extracted from the limitations and future-work passages of 774 Cardiac Valve Diseases and Treatments papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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