| VED | vacuum erection device; ventricular ectopic depolarization; vital exhaustion and depression |
|---|---|
| PTD | percutaneous transluminal dilatation; permanent total disability; personality trait disorder; preter... |
| SVD | single vessel disease; singular value decomposition; small vessel disease; spontaneous vaginal deliv... |
| MCS | malignant carcinoid syndrome; managed care system; massage of the carotid sinus; mesocaval shunt; me... |
| NFVVE | Normal Fullterm Vaginal Vacuum Extraction |
| vacuum curettage | Aspiration of the contents of the uterus with a vacuum curette. (12 Dec 1998) |
|---|---|
| vacuum desiccator | A desiccator that can be evacuated. (05 Mar 2000) |
| vacuum disk phenomenon | The appearance of a radiolucent stripe in an intervertebral disk, a manifestation of disk degeneration; a misnomer since there is gas present. (05 Mar 2000) |
| vacuum extraction, obstetrical | Removal of the foetus from the uterus or vagina at or near the end of pregnancy with a metal traction cup that is attached to the foetus' head. Negative pressure is applied and traction is made on a chain passed through the suction tube. (12 Dec 1998) |
| vacuum flask | <apparatus> A glass vessel, often silvered, with two walls, the space between which is evacuated; used for maintaining materials at constant temperature or, more usually, at low temperature. Synonym: vacuum flask. (05 Mar 2000) |
| vacuum headache | Headache due to closure of the frontal sinus. (05 Mar 2000) |
| vacuum pan | A device for growing crystals from solutions by gradually lowering the pressure within the sealed container holding the liquid. (09 Oct 1997) |
| vacuum tube | A glass tube from which the air has been removed, containing two or more electrodes, between which passes an electrical current or spark; used in the production of X-rays, or to control circuits. Previously in wide use, the vacuum tube has been supplanted by transistors in electronic circuits. (05 Mar 2000) |
| abdominal delivery | <obstetrics> A obstetric procedure that involves the delivery of the foetus through an abdominal incision. Cesarian sections account for about one fifth of all births in the us. Indications include: failure to progress, foetal distress, cephalopelvic disproportion (baby's too big for birth canal), placenta previa, placental abruption, placental insufficiency, breech baby, active genital herpes, multiple gestation, preeclampsia and excessive scarring from previous surgeries. The average hospital stay is about 4 days. The maternal death rate with cesarian section is three times higher than with natural delivery. (27 Sep 1997) |
| assisted cephalic delivery | Extraction of a foetus that presents by the head. (05 Mar 2000) |
| breech delivery | <obstetrics> The extraction or expulsion of the foetus which occurs buttocks or feet first. (27 Sep 1997) |
| perimortem delivery | Extraction of the foetus after the death of its mother. Synonym: perimortem delivery. (05 Mar 2000) |
| midforceps delivery | Delivery by forceps applied to the foetal head before the criteria of low forceps delivery have been met, but after engagement has taken place. (05 Mar 2000) |
| postmortem delivery | Extraction of the foetus after the death of its mother. Synonym: perimortem delivery. (05 Mar 2000) |
| premature delivery | Birth of a foetus before its proper time. See: premature birth. (05 Mar 2000) |