DES

(redirected from 3DES)
Also found in: Dictionary, Thesaurus, Financial, Acronyms, Encyclopedia.

diethylstilbestrol

 (DES) [di-eth″il-stil-bes´trol]
a synthetic nonsteroidal estrogen used for palliative treatment of prostatic carcinoma and sometimes advanced breast carcinoma. It was formerly used to relieve vasomotor symptoms associated with menopause, and in primary ovarian failure, female hypogonadism, atrophic vaginitis, kraurosis vulvae, and female castration. Most significantly, however, it was formerly widely used to prevent threatened abortion and premature labor. The female children who were thus exposed to the drug as fetuses have tended to have a variety of cervical abnormalities and an increased risk of clear cell adenocarcinoma of the reproductive tract. Male offspring have sometimes had abnormal genitalia, epididymal cysts, and abnormal semen analyses. Regular examinations and follow-up are indicated for these individuals.

DES

Abbreviation for diethylstilbestrol.

DES

abbr.
1. data encryption standard
2. diethylstilbestrol

DES

Abbreviation for:
deadly seven
dental environmental stress
dermal-epidermal separation
diethylstilbestrol
diffuse endocrine system
Directed Enhanced Service 
distal esophageal sphincter (US)
drug-eluting stent
dry eye syndrome

DES

Diethylstilbestrol Gynecology A synthetic estrogen more potent than natural estrogens; DES use during pregnancy was banned in 1972, as in utero exposure before the 18th gestational wk results in a 3-fold ↑ in congental abnormalities–without impairing fertility or sexual function—and vaginal wall adenosis in 35-70% of exposed ♀ infants; 0.14% of cases progress to vaginal adenocarcinoma; other DES changes include obliteration of vaginal fornices, microglandular hyperplasia of the cervix–cervical ectropion, transverse ridging–appearance, and a 2.5-fold ↑ in 1º infertility Treatment Aggressive surgery–eg, vaginectomy, hysterectomy and lymphadenectomy. See Cockscomb cervix.

DES

Abbreviation for diethylstilbestrol.

diethylstilbestrol

(di-eth?il-stil?bes'trol),

DES

A synthetic preparation possessing estrogenic properties. It is several times more potent than natural estrogens and may be given orally. It is used therapeutically in the treatment of menopausal disturbances and other disorders due to estrogen deficiencies.

CAUTION!

Diethylstilbestrol should not be administered during pregnancy. Such use has been found to be related to subsequent vaginal malignancies in the daughters of mothers who were given it.

This drug was once used extensively during pregnancy to treat threatened and habitual abortion. An estimated 5 million to 10 million Americans received DES during pregnancy or were exposed to the drug in utero. Those who were exposed to DES in utero were found to be at risk of developing reproductive tract abnormalities such as clear-cell cervicovaginal cancer in women and reproductive tract abnormalities in men. These findings were reported in 1970; the use of the drug during pregnancy was subsequently banned in the U.S. in 1971 and in Europe in 1978. Women who took the drug are now known as DES mothers and their daughters and sons are known as DES daughters and DES sons, respectively.

See: daughter, DES; DES syndrome

stent

(stent)
[Charles Thomas Stent, Brit. dentist, 1845–1901]
1. Originally, a compound used in making dental molds.
2. Any material or device used to hold tissue in place, to maintain open blood vessels, or to provide a support for a graft or anastomosis while healing is taking place.

airway stent

A tube or catheter used as a scaffold to keep an airway open. It is used, e.g., to maintain the patency of a trachea or bronchus that has collapsed as a result of compression by neighboring tissues.

bare metal stent

A vascular stent made of stainless steel or related materials. It is designed to hold an artery open with simple mechanical support. See: drug-eluting stent

covered stent

A stent whose supportive lattice is coated with biocompatible fabric or plastic, e.g., Dacron, polytetrafluoroethylene, or silicone.

drug-eluting stent

Abbreviation: DES
A stent coated with medications that it releases into surrounding intimal cells. It is designed to keep the lumen of an artery from closing both by holding the artery open and by retarding the growth of the vascular endothelium into the stent. See: bare metal stent

endoluminal stent

A stent placed inside a tubular structure or organ.

endovascular stent

A stent placed inside an artery or a vein.

esophageal stent

A tube inserted into the esophagus to open a stricture.
Enlarge picture
INSERTION OF A CORONARY ARTERY STENT: (A) A balloon catheter with a collapsed stent is advanced to the location of a coronary artery lesion. (B) The balloon is inflated, which expands the stent and compresses the lesion to increase the artery opening. (C) The balloon is then deflated and removed, leaving the expanded stent in place to prevent the artery from closing.
Enlarge picture
INSERTION OF A CORONARY ARTERY STENT: (A) A balloon catheter with a collapsed stent is advanced to the location of a coronary artery lesion. (B) The balloon is inflated, which expands the stent and compresses the lesion to increase the artery opening. (C) The balloon is then deflated and removed, leaving the expanded stent in place to prevent the artery from closing.
Enlarge picture
INSERTION OF A CORONARY ARTERY STENT: (A) A balloon catheter with a collapsed stent is advanced to the location of a coronary artery lesion. (B) The balloon is inflated, which expands the stent and compresses the lesion to increase the artery opening. (C) The balloon is then deflated and removed, leaving the expanded stent in place to prevent the artery from closing.

intraluminal coronary artery stent

A stent made of an inert material, usually metallic, with a self-expanding mesh introduced into the coronary artery. It is used to prevent lumen closure (restenosis) following bypass surgery and to treat acute vessel closure after angioplasty.
See: illustration

self-expanding stent

A stent that opens on its own after it is deployed to the lumen it is intended to occupy, e.g., a blood vessel, tube, or organ.

short stent

Spot stent.

spot stent

A stent that is deployed across a focal, severe obstruction in a lumen rather than across a longer but less extensively diseased portion it.
Synonym: short stent

urologic stent

A biologically compatible stent inserted into the ureter or urethra to relieve or prevent urinary tract obstruction. Such stents are commonly placed in the urinary tract after endoureterotomy and endopyelotomy.

drug-eluting stent

Abbreviation: DES
A stent coated with medications that it releases into surrounding intimal cells. It is designed to keep the lumen of an artery from closing both by holding the artery open and by retarding the growth of the vascular endothelium into the stent. See: bare metal stent
See also: stent

DES

See DIETHYLSTILBOESTROL.

DES

The abbreviation for diethylstilbestrol, a synthetic form of estrogen that was widely prescribed to women from 1940 to 1970 to prevent complications. It was linked to several serious birth defects and disorders of the reproductive system in daughters of women who took DES. In 1971, the FDA suggested it not be used during pregnancy and banned its use in 1979 as a growth promoter in livestock.
Mentioned in: Colposcopy

DES

Abbreviation for diethylstilbestrol.
References in periodicals archive ?
It can be seen from Table 4 that the epoch of the four AES algorithms are all below 50, the MSE is more than 0.05, the epoch of DES and 3DES are both above 200, and the MSE is less than 0.04.
* Use AES (or 3DES) and K to perform digital signature and encrypt data to obtain cipher text.
DESFire is an automatic fare collection technology which provides 3DES (Triple Data Encryption Standard) and AES (Advanced Encryption Standard) cryptographic algorithms.
To set up the table, we pick an underlying cipher, typically AES or 3DES. We then encrypt the values 0 ...
The solution offers: IPsec encryption with AES or 3DES; IPCOMP data compression; extended authentication (Xauth, EAP); support for digital certificates and hardware tokens, an integrated Stateful Inspection firewall with situation-dependent firewall rules; as well as 'Friendly Net Detection' for automatic detection of secure and non-secure networks.
The data encryption should be performed with strong standard algorithms including 3DES, AES 128 or AES 256.
Spitfire enterprise security platform is built-in with numerous ciphers of international standardizations including FIPS-197 AES 128, 192 and 256-bit, FIPS-46-3 3DES and DES, CAST5 and CAST6, IDEA, RC2, RC4, RC5 and RC6, Blowfish and Twofish, Serpent and Skipjack, as well as RSA.
The reader includes an advanced self-prompting user guidance system, tamper protection using 3DES encryption, and an error rate of one per 1.2 million.
The Secure NIC has a rich feature set that includes support for a broad range of symmetric encryption including DES, 3DES, AES (all modes up to 256 bit) and ARC4, as well as asymmetric encryption including RSA and Diffie Hellman.
SECURITY OPTIONS: IPSec, L2TP/IPSec, ESP tunnel mode, 3DES, AES, DH Groups 2,5, MD5, SHA-1
Furthermore, it supports IPSec-based 56-bit (DES) or 168-bit (3DES), and 128-, 192- or 256-bit advanced encryption standard encryption algorithms, remote access VPN, site-to-site VPN and VPN pass-through functionality.
* Motorola's MPC180 security processor containing a PowerPC core, offering hardware-based security support for DES, 3DES, MD-5, SHA-1, RSA, D-H, and an on-chip random number generator