Although aortic valve replacement is recommended for any symptomatic severe calcific aortic stenosis, the therapeutic decision may be difficult. because of patient age and comorbidities.

Transcatheter Aortic Valve Implantation (TAVI) has recently extended the therapeutic indications in patients at high risk of surgery. However, the proportion of different treatments is not known in a contemporary population that can be treated according to the different resources currently available.

The scientific goal of this observational research is to evaluate intra-hospital therapeutic decision in elderly patients referred because of symptomatic severe aortic stenosis.

The one-year survival will be analyzed according to the therapeutic decision and the characteristics of the patients.

Inclusion Criteria:

• Hospitalized due to symptomatic tight aortic stenosis (NYHA >= II, dyspnea, angina or syncope);
• Having given his consent to participate in the study.

Exclusion Criteria:

• Non-severe aortic stenosis;
• Asymptomatic aortic stenosis;
• Patient under the age of 75;
• Patient refusing to participate in the study.

Multicenter study to prospectively include all patients who agreed to participate in the study, with severe and symptomatic aortic stenosis, and hospitalized in one of the medical-surgical centers participating in the study and offering all the therapeutic resources for the taking into account charge of patients with aortic stenosis