The word "stenosis" is used in written English.
It is a medical term which refers to an abnormal narrowing of a blood vessel or other tubular organ or structure. You can use it when referring to such a narrowing or when discussing specific medical conditions related to such a narrowing. Example sentence: The patient was diagnosed with aortic valve stenosis, a condition in which the aortic valve narrows and restricts the flow of blood from the heart.
Its narrowing is also called infundibular stenosis.
Atresia and stenosis, absence, usually congenital, of a normal bodily passage or cavity (atresia) or narrowing of a normal passage (stenosis).
In this condition there is a ventricular septal defect, pulmonary stenosis (narrowing of the opening to the pulmonary artery), deviation of the aorta to override the ventricular septum above the ventricular septal defect, and right ventricular hypertrophy (thickening of the muscle of the right ventricle).
For example, the murmur of mitral stenosis may be described as a grade 3/6, low-pitched, rumbling, presystolic murmur heard best at the apex and having an increased first heart sound at the apex.
The complications of peptic ulcers are hemorrhage, perforation, and obstruction of the outlet of the stomach (pyloric stenosis) by scarring of the duodenal bulb or of the pyloric channel.
Both the aorta and the pulmonary artery may originate from the right ventricle; this form of abnormal origin of the arteries usually is associated with a ventricular septal defect and, on occasion, pulmonary stenosis.
Pyloric stenosis is a spasmodic narrowing of the opening between the stomach and the duodenum.
Occasionally, following trauma or arising spontaneously as a result of vascular disease, one or the other of the main renal arteries becomes constricted (renal artery stenosis).
As a result of the obstruction imposed by the pulmonary stenosis, deoxygenated venous blood is shunted from the right to the left side of the heart into the arterial circulation.
In 1923 Elliott Cutler of Boston used a tenotome, a tendon-cutting instrument, to relieve a girl's mitral stenosis (a narrowing of the mitral valve between the upper and lower chambers of the left side of the heart) and in 1925, in London, Henry Souttar used a finger to dilate a mitral valve in a manner that was 25 years ahead of its time.
Intestinal atresia occurs about twice as frequently as intestinal stenosis; there is a total incidence of one out of every 3,000 births, with the ileum (the final section of the small intestine) being most affected.
