Early predictive value of prediction models for mortality after transcatheter aortic valve replacement: a systematic review and meta-analysis - Report - MDSpire

Early predictive value of prediction models for mortality after transcatheter aortic valve replacement: a systematic review and meta-analysis

  • By

  • Ruiyan Wang

  • Mengyu He

  • Ziting Yuan

  • Jing Zhou

  • Lili Han

  • Xu Cheng

  • Yiming Chen

  • Feng Wang

  • July 15, 2026

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Clinical Report: Evaluating the Early Predictive Accuracy of Mortality Risk Models Following TAVR

Overview

This systematic review evaluates the effectiveness of various mortality risk prediction models following transcatheter aortic valve replacement (TAVR).

Background

Transcatheter aortic valve replacement (TAVR) is increasingly utilized for patients with aortic stenosis, particularly as the incidence of this condition rises. Accurate early identification of mortality risk post-TAVR is critical for optimizing patient management and outcomes. Despite the development of several prediction models, their effectiveness has not been systematically reviewed until now.

Data Highlights

ModelC-index95% CI
EuroSCORE I0.6100.588–0.632
EuroSCORE II0.6150.588–0.643
France II0.5780.531–0.625
OBSERVANT score0.5940.554–0.633
STS risk model0.6480.622–0.674
ACC TVT risk model0.6320.616–0.648
Machine learning models0.7050.677–0.733

Key Findings

  • The review included 36 studies with a total of 272,390 patients undergoing TAVR.
  • Six major scoring tools were evaluated, including both traditional and machine learning models.
  • The summarized machine learning models showed the highest C-index of 0.705.
  • Traditional models like EuroSCORE I and II had C-indices of 0.610 and 0.615, respectively.
  • Predictive performance of existing models varies, indicating a need for further research and model refinement.

Clinical Implications

Healthcare professionals should consider the predictive capabilities of the evaluated models when assessing mortality risk after TAVR.

Conclusion

The systematic review highlights the challenges in determining the predictive performance of mortality risk models after TAVR.

Related Resources & Content

  1. Clinical Research in Cardiology, External Validation Study of Risk Assessment Models for Transcatheter Aortic Valve Replacement in 2946 Patients from Germany, 2020
  2. Clinical Research in Cardiology, Assessment of Patient Risk Factors for Transcatheter Aortic Valve Replacement (PRE-TAVR), 2025
  3. Frontiers in Digital Health, Computational modelling for personalized transcatheter aortic valve replacement planning: a systematic review of complications and decision support, 2026
  4. Clinical Research in Cardiology — Impact of pre-existing CIED on mid-term mortality in patients undergoing TAVR
  5. 2025 ESC/EACTS Valvular Heart Disease Guidelines
  6. Evolut Low Risk: TAVR Noninferior to SAVR at 5-Year Follow-Up - American College of Cardiology
  7. Performance of Contemporary Risk Scores for Transcatheter Aortic Valve Replacement: A Meta-Analysis | JACC

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