- Age and Basic Aortic Valve Characteristics: – Patients aged over 75 or selected patients aged 65-75 – Severe aortic stenosis (valve area <1.0 cm²) – High pressure gradient and blood flow velocity – Significant valve calcification
- Important Chronic Diseases: – Uncontrolled hypertension – Diabetes with HbA1c >7.5 – Advanced COPD (respiratory capacity <50%) – Severe kidney failure
- Heart Failure Symptoms: – Recurrent hospital admissions – Limitation in daily activities – Low ejection fraction – High heart failure markers
- High-Risk Situations for Repeat Surgery: – Intrathoracic adhesions – Previous chest radiotherapy – Existing bypass grafts -Previous sternum infection
- Risk Assessment Criteria: – High surgical risk scores (STS >8%, EuroSCORE II >10%) – Limited physical activity capacity – Dependence in daily living activities
- Special Anatomical Conditions: – Extensive aortic calcification – Significant spinal deformity – Suitable aortic root anatomy – 18-29 mm valve diameter suitability
