Valve Prosthesis Calculator

Perform online calculations to determine the Class of Recommendation for Valve Prosthesis according to Guidelines

March 18th, 2022
(updated December 14th, 2024)

How to use the Calculator. The Calculator is an Excel file: type in the yellow cells the information requested, checking the Legend provided in or below the Calculator box for explanations concerning the variable values. The Calculator will instantly calculate the results of formulas in the gray cells, and provide the Prosthesis selection and Recommendation Class.

The Calculator is based on the recently published 2021 European Guidelines for the management of valvular heart disease.

Legend

  • Patient preference
  • Valve surgery
  • Long-term anticoagulation
  • Risk of accelerated SVD
  • Life expectancy
  • Surgical risk redo / TAVI
  • Mechanical valve thrombosis
  • Female considering pregnancy
  • Long-term VKA for thromboembolism
  • Long-term NOACs for thromboembolism
  • Mechanical= 1 / Bioprosthesis= 2
  • Aortic= 1 / Mitral= 2
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1 (age <40y / Hyperparath. / Haemodyal.
  • > 10 years= 1 / Short= 2
  • Low= 1 / High= 2
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1

Abbreviations

  • NOAC: Non-vitamin K antagonist Oral AntiCoagulant
  • Redo: Redo valve surgery
  • SVD: Structural Valve Deterioration
  • TAVI: Transcatheter Aortic Valve Implantation
  • VKA: Vitamin K Antagonists