Tricuspid stenosis Health Dictionary

Narrowing of the AORTIC VALVE in the HEART which obstructs the ?ow of blood through it, with serious effects on the heart and the circulation. The muscle in the left ventricle works harder to compensate for the obstruction and thickens as a result. Stenosis is usually caused by the deposition of calcium on the valve and is commonly associated with ATHEROMA. Untreated, the condition leads to heart failure, but nowadays the stenosis can be treated surgically.... aortic stenosis

A disorder of the HEART in which obstruction of the out?ow of blood from the right ventricle occurs. Narrowing of the pulmonary valve at the exit of the right ventricle and narrowing of the pulmonary artery may cause obstruction. The condition is usually congenital, although it may be caused by RHEUMATIC FEVER. In the congenital condition, pulmonary stenosis may occur with other heart defects and is then known as Fallot’s tetralogy. Breathlessness and enlargement of the heart and eventual heart failure may be the consequence of pulmonary stenosis. Surgery is usually necessary to remove the obstruction.... pulmonary stenosis

Narrowing of the PYLORUS, the muscular exit from the STOMACH. It is usually the result of a pyloric ulcer or cancer near the exit of the stomach. Food is delayed when passing from the stomach to the duodenum and vomiting occurs. The stomach may become distended and peristalsis (muscular movement) may be seen through the abdominal wall. Unless surgically treated the patient will steadily deteriorate, losing weight, becoming dehydrated and developing ALKALOSIS.

A related condition, congenital hypertrophic pyloric stenosis, occurs in babies (commonly boys) about 3–5 weeks old, and surgery produces a complete cure.... pyloric stenosis

An unnatural narrowing in any passage or ori?ce of the body. The word is especially used in connection with the four openings of the HEART at which the valves are situated. (See HEART, DISEASES OF.)... stenosis

The valve, with three cusps or ?aps, that guards the opening from the right atrium into the right ventricle of the HEART.... tricuspid valve

Narrowing of the opening between the left ATRIUM and left VENTRICLE of the HEART as a result of rigidity of, and adhesion between, the cusps of the MITRAL VALVE. It is due, almost invariably, to the infection RHEUMATIC FEVER. The atrium has to work harder to force blood through the narrowed channel. The effects are similar to those of MITRAL INCOMPETENCE. Shortness of breath and palpitations and irregular beating (?brillation) of the atrium are common consequences in adults. Drug treatment with DIGOXIN and DIURETICS helps, but surgery to dilate or replace the faulty valve may be necessary.... mitral stenosis

Failure of the TRICUSPID VALVE in the HEART to close fully, thus permitting blood to leak back into the right atrium during contractions of the right ventricle. This reduces the heart’s pumping e?ciency, and right-sided heart failure usually results. Treatment for heart failure (using DIURETICS and ACE inhibitor drugs) usually restores function, but sometimes heart surgery is required to repair or replace the defective valve.... tricuspid incompetence

Backflow of blood from the right ventricle (pumping deoxygenated thick venous blood into the lungs) into the right atrium (receiving used blood from the rest of the body) because of faulty closure of the tricuspid valve that guards between the two chambers.... regurgitations, tricuspid

A tightness of the anus, sometimes referred to as anal stricture.

Anal stenosis prevents the normal passage of faeces, causing constipation and pain during defaecation.

The condition may be present from birth, or may be caused by a number of conditions in which scarring has occurred, such as anal fissure, colitis, or cancer of the anus.

Anal stenosis sometimes occurs after surgery on the anus (for example, to treat haemorrhoids).

The condition is treated by anal dilatation.... anal stenosis

(carotid stenosis) narrowing of the carotid artery, which reduces the supply of blood to the brain and is a cause of strokes. It is treated by surgical excision or bypass of the narrowed segment (see also endarterectomy) or by inserting a *stent into the carotid artery.... carotid artery stenosis

a rare form of congenital heart disease in which there is no communication between the right atrium and the right ventricle. Affected babies present with *cyanosis, breathlessness, particularly on feeding, and *failure to thrive. Diagnosis is by *echocardiography. Treatment involves surgical intervention, but the prognosis is often poor.... tricuspid atresia