Right ventricular outflow tract obstruction pathophysiology

Right ventricular outflow tract obstruction Microchapters
Home
Patient Information
Overview
Anatomy of Pulmonary Valve
Classification
Pulmonary valve stenosis
Pulmonary subvalvular stenosis
Pulmonary supravalvular stenosis
Pulmonary atresia
Pathophysiology
Causes
Differentiating Right ventricular outflow tract obstruction from other Diseases
Epidemiology and Demographics
Risk Factors
Natural History, Complications and Prognosis
Diagnosis
History and Symptoms
Physical Examination
Electrocardiogram
Chest X Ray
Echocardiography
Cardiac Catheterization
Pulmonary Angiography
Treatment
Indications For Surgery
Surgery
Pre-Operative A/P
Post-Operative A/P
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Special Scenarios
Pulmonary artery conduits/Prosthetic Valves
Double-Chambered Right Ventricle
Case Studies
Case #1
Right ventricular outflow tract obstruction pathophysiology On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Right ventricular outflow tract obstruction pathophysiology
CDC on Right ventricular outflow tract obstruction pathophysiology
Right ventricular outflow tract obstruction pathophysiology in the news
Blogs on Right ventricular outflow tract obstruction pathophysiology
Directions to Hospitals Treating Right ventricular outflow tract obstruction pathophysiology
Risk calculators and risk factors for Right ventricular outflow tract obstruction pathophysiology

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Pathophysiology

The right ventricular outflow tract obstruction includes stenosis or narrowing of the pulmonary valve, the tissue above the valve (supravalvar obstruction) and below it(subvalvar obstruction). Congenital subvalvar and supravalvar right ventricular outflow tract stenosis usually occurs with other congenital heart defects such as Ventricular Septal Defect (VSD) or Tetralogy of Fallot.

If right ventricular outflow tract obstruction is present and the ventricular septum is intact, usually the right ventricle will adapt better given that no right to left shunting is present. This absence of shunting may result in sufficient pulmonary blood flow to allow the patient to remain asymptomatic longer.