| balloon dilatation | Nonoperative repair of occluded vessels, ducts, or valves by insertion of a balloon catheter. It is used to treat varices, torn retinas, renal and biliary calculi, gastric, bronchial and rectal stenoses, and heart valves, and includes catheterization with fogarty and foley catheters. (12 Dec 1998) |
|---|---|
| small bowel dilatation | <radiology> Mnemonic: SOS, sprue, obstruction / ileus, scleroderma (collagen-vascular disease) normal width: less than 3 cm (12 Dec 1998) |
| stage of dilatation | The part of labour when the cervix dilates fully (to 10 centimeters). Also called the first stage of labour. (12 Dec 1998) |
| stomach dilatation | Distention of the stomach with retained secretions, food, and/or gas due to obstruction, ileus, or denervation. (12 Dec 1998) |
| digital dilatation | Use of the finger or finger-tip to enlarge an orifice or opening, such as enlarging the orifice of a sclerosed mitral valve surgically. (05 Mar 2000) |
| dilatation | The condition, as of an orifice or tubular structure, of being dilated or stretched beyond the normal dimensions. (18 Nov 1997) |
| dilatation and curettage | This gynaecological procedure involves dilating the cervix (opening to the uterus) such that a surgical curette may be passed into the uterus. The surgeon uses the curette to remove the inner lining of the uterus (endometrium). This procedure is often performed to correct dysfunctional uterine bleeding. (27 Sep 1997) |
| dilatation, pathologic | The condition of an anatomical structure's being dilated beyond normal dimensions. (12 Dec 1998) |
| abdominal aortic aneurysm | <surgery> A distended and weakened area in the wall of the abdominal aorta, more common in those who suffer from atherosclerosis. Symptoms include sudden, severe abdominal pain with radiation to the back. (27 Sep 1997) |
| ampullary aneurysm | A saclike bulging on one side of an artery. Synonym: ampullary aneurysm. (05 Mar 2000) |
| aneurysm | <anatomy, surgery> A sac formed by the dilatation of the wall of an artery, a vein or the heart. The physical signs of arterial aneurysm are the formation of a pulsating tumour and often a bruit (aneurysmal bruit) heard over the swelling. Sometimes there are symptoms from pressure on contiguous parts. Origin: Gr. Aneurysma = a widening (18 Nov 1997) |
| aneurysm by anastomosis | A mass of dilated anastomosing vessels that produce a pulsating tumour usually in a superficial position. (05 Mar 2000) |
| aneurysm, dissecting | Splitting or dissection of an arterial wall by blood entering through an intimal tear or by interstitial haemorrhage. It is most common in the aorta. (12 Dec 1998) |
| aneurysm, false | An aneurysm in which the entire wall is injured and the blood is contained by the surrounding tissues, with eventual formation of a sac communicating with the artery or heart. (12 Dec 1998) |
| aneurysm, infected | Aneurysm due to growth of microorganisms in the arterial wall, or infection arising within preexisting arteriosclerotic aneurysms. (12 Dec 1998) |