Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Prospective, Randomized, Controlled, Multi-Center Study to Establish the Safety and Effectiveness of the SAPIEN 3 Transcatheter Heart Valve in Low Risk Patients Who Have Severe, Calcific, Aortic Stenosis Requiring Aortic Valve Replacement
Brief Summary: To establish the safety and effectiveness of the Edwards SAPIEN 3 Transcatheter Heart Valve (THV) in patients with severe, calcific aortic stenosis who are at low operative risk for standard aortic valve replacement.


Options:
A: Inclusion Criteria:

* Severe symptomatic aortic stenosis accepted for Trans Catheter Aortic Valve Replacement
* Age ≥75 years;
* Participant able and willing to give written informed consent;
* Participant able (in the Investigator's opinion) and willing to comply with all study requirements.

Exclusion Criteria:

* Subjects may not enter the study if ANY of the following apply:
* Intervention deemed inappropriate due to co-morbidity or frailty;
* Life expectancy less than one year due to co-morbidity;
* Previous AVR or TAVI;
* Predominant aortic regurgitation (AR).
B: Inclusion Criteria:

* Admitted to hospital for elective heart valve surgery at Rigshospitalet, Denmark
* 18 years or older
* Speak and understand Danish
* Providing written informed consent

Exclusion Criteria:

* Known ischemic heart disease prior to heart valve surgery
* Is included in an other clinical trial investigating the effects of physical training and psycho-educational intervention
* Unable to understand and cooperate to study instructions
* Pregnant and/or breast feeding
* Performing exercise training at high level and several times a week
* No written informed consent
C: Inclusion Criteria:

* post-cardiosurgical diaphragmatic paralysis recent cardiosurgical intervention for by-pass and/or valve replacement

Exclusion Criteria:

* heart failure
* COPD
* neuromuscular disease
D: Inclusion Criteria:

1. Severe, calcific aortic stenosis
2. New York Heart Association Functional Class ≥ 2 OR exercise tolerance test that demonstrates a limited exercise capacity, abnormal BP response, or arrhythmia OR asymptomatic with Left Ventricular Ejection Fraction (LVEF) \<50%
3. Heart team agrees the patient has a risk of operative mortality and has an Society of Thoracic Surgeons (STS) score \< 4
4. The study patient has been informed of the nature of the study, agrees to its provisions and has provided written informed consent.

Exclusion Criteria:

1. Native aortic annulus size unsuitable for sizes 20, 23, 26, or 29 mm transcatheter heart valve
2. Iliofemoral vessel characteristics that would preclude safe passage of the introducer sheath
3. Evidence of an acute myocardial infarction ≤ 30 days before randomization
4. Aortic valve is unicuspid, bicuspid, or non-calcified
5. Severe aortic regurgitation (\>3+)
6. Severe mitral regurgitation (\>3+) ≥ moderate stenosis
7. Pre-existing mechanical or bioprosthetic valve in any position
8. Complex coronary artery disease:

   1. Unprotected left main coronary artery
   2. Syntax score \> 32
   3. Heart Team assessment that optimal revascularization cannot be performed
9. Symptomatic carotid or vertebral artery disease or successful treatment of carotid stenosis within 30 days of randomization
10. Leukopenia, anemia, thrombocytopenia, history of bleeding diathesis or coagulopathy, or hypercoagulable states
11. Hemodynamic or respiratory instability requiring inotropic support, mechanical ventilation or mechanical heart assistance within 30 days of randomization
12. Hypertrophic cardiomyopathy with obstruction
13. Ventricular dysfunction with LVEF \< 30%
14. Cardiac imaging evidence of intracardiac mass, thrombus or vegetation
15. Inability to tolerate or condition precluding treatment with antithrombotic/anticoagulation therapy during or after the valve implant procedure
16. Stroke or transient ischemic attack within 90 days of randomization
17. Renal insufficiency and/or renal replacement therapy at the time of screening.
18. Active bacterial endocarditis within 180 days of randomization
19. Severe lung disease or currently on home oxygen
20. Severe pulmonary hypertension
21. History of cirrhosis or any active liver disease
22. Significant frailty as determined by the Heart Team
23. Significant abdominal or thoracic aortic disease that would preclude safe passage of the delivery system or cannulation and aortotomy for surgical aortic valve replacement
24. Hostile chest or conditions or complications from prior surgery that would preclude safe reoperation
25. Patient refuses blood products
26. Body mass index \> 50 kg/m2
27. Estimated life expectancy \< 24 months
28. Absolute contraindications or allergy to iodinated contrast that cannot be adequately treated with pre-medication
29. Immobility that would prevent completion of study procedures
30. Patient is not a candidate for both arms of the study
31. Currently participating in an investigational drug or another device study.

Answer: D