Aortic stenosis classification

Aortic Stenosis Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Aortic Stenosis from other Diseases
Epidemiology and Demographics
Risk Factors
Natural History, Complications and Prognosis
Diagnosis
History and Symptoms
Physical Examination
Cardiac Stress Test
Electrocardiogram
Chest X Ray
CT
MRI
Echocardiography
Cardiac Catheterization
Aortic Valve Area
Aortic Valve Area Calculation
Treatment
General Approach
Medical Therapy
Surgery
Percutaneous Aortic Balloon Valvotomy (PABV) or Aortic Valvuloplasty
Transcatheter Aortic Valve Replacement (TAVR) TAVR vs SAVR Critical Pathway Patient Selection Imaging Evaluation Valve Types TAVR Procedure Post TAVR management AHA/ACC Guideline Recommendations
Follow Up
Prevention
Precautions and Prophylaxis
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Aortic stenosis classification On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Aortic stenosis classification All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Aortic stenosis classification
CDC on Aortic stenosis classification
Aortic stenosis classification in the news
Blogs on Aortic stenosis classification
Directions to Hospitals Treating Aortic stenosis classification
Risk calculators and risk factors for Aortic stenosis classification

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Priyamvada Singh, MBBS [2]; Assistant Editor-In-Chief: Kristin Feeney, B.S. [3]

Overview

Aortic stenosis can be classified broadly in two main categories: acquired and congenital. Further classification can be applied based on the origin of the stenosis such as acquired rheumatic, congenital bicuspid, congenital subaortic, congenital subvalvular, and congenital supravalvular.

Classification

Acquired Aortic Stenosis

Acquired aortic stenosis in adults has two major causes:

1. Calcific degenerative disease of a structurally normal trileaflet valve.

• Calcific aortic disease has many of the same risk factors as atherosclerotic disease and it is characterized by fat deposition, inflammation, and calcification. It is also frequently observed among patients with renal failure.

2. Valve disease resulting from rheumatic fever.

• Rheumatic valve disease involves fusion of the commissures between the leaflets resulting in a small central orifice.

Congenital Left-Sided Outflow Obstruction

Congenital left-sided outflow obstruction can be due to a variety of conditions, all of which culminate in obstruction of the left ventricular outflow tract. These conditions include:

1. Bicuspid aortic valve
2. Unicuspid aortic valve
3. Hypoplasia of the annulus
4. Supravalvular aortic stenosis
5. Subvalvular aortic stenosis