Definition Mitral stenosis is a heart valve disorder that involves the mitral valve. This valve separates the upper and lower chambers on the left side of the heart. Stenosis refers to a condition in which the valve does not open fully, restricting blood flow. Alternative Names Mitral valve obstruction Causes, incidence, and risk factors Blood that flows between different chambers of your heart must flow through a valve. The valve between the two chambers on the left side of your heart is called the mitral valve. It opens up enough so that blood can flow from one chamber of your heart (left atria) to the next chamber (left ventricle). It then closes, keeping blood from flowing backwards. Mitral stenosis refers to when the valve cannot open as wide. As a result, less blood flows to the body. The upper heart chamber swells as pressure builds up. Blood may flow back into the lungs. Fluid then collects in the lung tissue ( pulmonary edema ), making it hard to breathe. See also: heart failure . In a...
The aorta is the main artery carrying blood out of the heart. When blood leaves the heart, it flows through the aortic valve, into the aorta. In aortic stenosis, the aortic valve does not open fully. This decreases blood flow from the heart.
Aortic valve stenosis; Left ventricular outflow tract obstruction; Rheumatic aortic stenosis; Calcium aortic stenosis
Causes, incidence, and risk factors
As the aortic valve becomes more narrow, the pressure increases inside the left heart ventricle. This causes the left heart ventricle to become thicker, which decreases blood flow and can lead to chest pain. As the pressure continues to rise, blood may back up into the lungs, and you may feel short of breath. Severe forms of aortic stenosis prevent enough blood from reaching the brain and rest of the body. This can cause light-headedness and fainting.
Aortic stenosis may be present from birth (congenital), or it may develop later ...
Definition Meatal stenosis is a narrowing of the opening of the urethra, the tube through which urine leaves the body. Alternative Names Urethral meatal stenosis Causes, incidence, and risk factors Meatal stenosis can affect both males and females, but it is more common in males. In males, it is often caused by swelling and irritation (inflammation) after a newborn is circumcised . This leads to abnormal tissue growth and scarring across the opening of the urethra. The problem is usually not found until the child is toilet trained. In females, this condition is present at birth (congenital). Although less common, metal stenosis may also affect adult women. Risks include: Having multiple endoscopic procedures ( cystoscopy ) Severe, long-term atrophic vaginitis
You should knowAnswers to your question are meant to provide general health information but should not replace medical advice you receive from a doctor. No answers should be viewed as a diagnosis or recommended treatment for a condition. Content posted by community members does not necessarily reflect the views of Remedy Health Media, which also reserves the right to remove material deemed inappropriate.