Valvular Aortic Stenosis Prognosis Study
Valvular Aortic Stenosis Prognosis Study
Aortic stenosis is the most common valvulopathy in Western countries. Cardiac EchoDoppler is
 the reference method for assessment of aortic stenosis and provides prognostic elements.
 However, it is imperfect with many inconsistencies between measures. On the other hand, the
 prognosis of patients with low flow and low gradient aortic retraction is discussed.

 The main objective of this work is to study the prognosis of asymptomatic and symptomatic
 aortic retraction.
Aortic stenosis is an attack most often acquired from the aortic valve corresponding to a
 defect of opening of this valve. Its prevalence increases with age and approaches 2% at age
 65 and 25% at age 85 . It is in the majority of cases degenerative due to the development of
 calcifications on the aortic sigmoid valves by a process close to atherosclerosis (Otto CM,
 Circulation, 1994). It is associated with cardiovascular risk factors (age, male sex,
 smoking, high blood pressure and associated high LDL cholesterol). Aortic stenosis may also
 frequently be the consequence of aortic bicuspid (congenital) or more rarely rheumatic fever.

 Aortic stenosis is responsible for an obstacle to ejection of the left ventricle with
 increased afterload and thus left ventricular work. After a long asymptomatic period when the
 obstacle to ejection is compensated by the induction of an adaptive left ventricular
 hypertrophy, symptoms appear initially of effort (dyspnea, angina, lipothymia see syncope)
 then clinical signs of insufficiency heart. The occurrence of symptoms should cause aortic
 valve replacement because at this stage the prognosis becomes unfavorable with a risk of
 death by cardiac decompensation or sudden death.

 The two pillars of the diagnosis of severity are the evaluation of functional aortic valve
 area and the average transvalvular gradient. The tight aortic stenosis is defined for a
 functional aortic area <1cm² or 0.6cm² / m² and a mean tranvular gradient> 40 mmHg.

 Patient survival data and / or a possible complication or indication for surgery will be
 evaluated periodically either during a standard follow-up consultation if patients are
 followed in the referral center or by telephone contact with the attending physician or
 cardiologist. . In case of death, the cause and date will be collected.
Inclusion Criteria:

 -  Retrospectively, all patients examined from January 1, 2000 to November 2014 will be
 included in the echocardiography laboratory whose objective examination is a narrowing
 of the aortic valve (maximum transaortic velocity ≥2.5 m / s).

 -  Aortic stenosis may be known in the past.

 Exclusion Criteria:

 -  Refusal of the patient to participate in the study.

 -  Patients who have previously had aortic valve surgery before being examined in the
 echocardiography laboratory.

 -  Patients who can not be contacted or who do not respond will not be included in the
 database.