Aortic Valve Stenosis Calculator

Perform online calculations to determine the Class of Recommendation for Aortic Valve Stenosis Intervention according to Guidelines

March 15th, 2022
(updated April 14th, 2022)

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Legend

  • Sex
  • Experienced Center with HT
  • Symptoms
  • Indicators of adverse prognosis
  • Severe co-morbidities
  • Suitable for TAVI
  • QoL improves after surgery
  • Likely benefit from surgery
  • Concomitant open heart surgery
  • Exercise: symptoms
  • Exercise: BP fall > 20 mmHg
  • DSE flow reserve
  • Bicuspid AV
  • Severe AV calcium (CCT)
  • Markedly elevated BNP
  • Intact pericardium
  • Homograft bank
  • Male= 0 / Female= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1 / Sievers type 0= 2
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • No= 0 / Yes= 1
  • Indicators of adverse prognosis: Clinical: old age, atherosclerosis / Echocardio: AV calcium, Vmax, rate of hemodynamic progression, mean gradient increase > 20 mmHg with exercise, EF, severe LV Hypertrophy, low Stroke Volume index, Left atrial volume, LV GLS.
  • Likely benefit from surgery: Prolong survival > 1 year
  • Concomitant open heart surgery: CABG, other valve, ascending aorta
  • DSE flow reserve: 20% increase in stroke volume in response to low-dose dobutamine

Abbreviations

  • AV: Aortic Valve
  • BNP: B-type Natriuretic Peptide
  • BP: Blood Pressure
  • CCT: Cardiac Computed Tomography
  • CW: Continuous Wave Doppler
  • DSE: Dobutamine Stress Echocardiography
  • DVI: Dimensionless Index
  • EDD: End-diastolic diameter
  • EDHI: End-Diastolic Hypertrophy Index
  • EF: Ejection Fraction
  • EuroSCORE II: European System for Cardiac Operative Risk Evaluation (http://www.euroscore.org/calc.html)
  • GLS: Global Longitudinal Strain
  • HT: Heart Team
  • LV: Left Ventrixular
  • LVMI: LV Mass Index
  • LVOT: LV Outflow Tract
  • PD: Pulsed Doppler
  • QoL: Quality of Life
  • SAVR: Surgical Aortic Valve Replacement
  • STS-PROM: Society of Thoracic Surgeons Predicted Risk of Mortality (https://riskcalc.sts.org/stswebriskcalc/calculate)
  • TAVI: Transcatheter Aortic Valve Implantation
  • VTI: Velocity-Time Integral