| IVT | index of vertical transmission; interventional video tomography; intrasound vibration test; intraven... |
|---|---|
| LVCS | low vertical cesarean section |
| OVD | occlusal vertical dimension |
| PVD | patient very disturbed; peripheral vascular disease; portal vein dilation; posterior vitreous detach... |
| VBG | vagotomy and Billroth gastroenterostomy; venous blood gases; venous bypass graft; vertical-banded ga... |
| mechanical vertigo | Vertigo caused by continued rotation or vibration of the body. (05 Mar 2000) |
|---|---|
| rest vertical dimension | The vertical dimension of the face with the jaws in rest relation; decrease in rest vertical dimension may or may not accompany a decrease in occlusal vertical dimension; it may occur without a decrease in occlusal vertical dimension in patients with a preponderant activity of the jaw-closing musculature, as in patients with muscular hypertenseness or in chronic gum chewers; increase in rest vertical dimension may or may not accompany an increase in occlusal vertical dimension; it sometimes occurs after the removal of remaining occlusal contacts, perhaps as a result of the removal of noxious reflex stimuli. (05 Mar 2000) |
| Charcot's vertigo | Fainting as a result of a coughing spell, caused by persistent increased intrathoracic pressure diminishing venous return to the heart, thus lowering cardiac output; most often occurs in heavy-set male smokers who have chronic bronchitis. Synonym: Charcot's vertigo, laryngeal vertigo. (05 Mar 2000) |
| chronic vertigo | A condition in which attacks of vertigo occur in rapid succession. Synonym: chronic vertigo. (05 Mar 2000) |
| physiologic vertigo | Dizziness as result of changes in inner ear resulting from absence of gravity. Synonym: physiologic vertigo. (05 Mar 2000) |
| positional vertigo of Barany | Brief attacks of paroxysmal vertigo and nystagmus that occur solely with certain head movements or positions, e.g., with neck extension; due to labyrinthine dysfunction. Synonym: positional vertigo of Barany, postural vertigo. (05 Mar 2000) |
| postural vertigo | Light-headedness that appears particularly in elderly people with change of position usually from lying or sitting to standing; due to orthostatic hypotension. (05 Mar 2000) |
| height vertigo | Dizziness experienced when looking down from a great height or in looking up at a high building or cliff. Synonym: vertical vertigo. (05 Mar 2000) |
| Scardino vertical flap pyeloplasty | A reconstructive technique for correction of uteropelvic obstruction, whereby a vertical flap of renal pelvis is brought down and interposed into a vertical incision in the ureter. Compare: Culp pyeloplasty. (05 Mar 2000) |
| horizontal vertigo | Dizziness experienced on lying down. (05 Mar 2000) |
| sham-movement vertigo | Dizziness accompanied by an impression that the body is rotating or that objects are rotating about the body. Synonym: gyrosa. (05 Mar 2000) |
| hysterical vertigo | A sensation of dizziness, as from a whirling motion, whose aetiology is psychosomatic. (05 Mar 2000) |
| nocturnal vertigo | A feeling of falling when dropping off to sleep. (05 Mar 2000) |
| disease transmission, vertical | The transmission of infectious disease or pathogens from one generation to another. It includes transmission in utero or intrapartum by exposure to blood and secretions, and postpartum exposure via breastfeeding. (12 Dec 1998) |
| occlusal vertical dimension | The vertical dimension of the face when the teeth or occlusion rims are in contact in centric occlusion; decrease in occlusal vertical dimension may result from modification of tooth form by attrition or grinding, drifting of teeth, or, in edentulous patients, by resorption of residual ridges; increase may result from modifications of tooth form, tooth position, height of occlusion rims, rebasing or relining, or occlusal splints. (05 Mar 2000) |