dissection


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Related to dissection: aortic dissection, Dissection of aorta

dissection

 [dĭ-sek´shun]
1. the act of dissecting.
2. a part or whole of an organism prepared by dissecting.
aortic dissection a dissecting aneurysm of the aorta; the usual site is the thoracic aorta. There are two types, classified according to anatomical location: Type A involves the ascending aorta; Type B originates in the descending aorta. Acute aortic dissection is often fatal within one month of onset. Surgical treatment may be delayed in aneurysms involving the descending aorta until the blood pressure has been controlled and edema and friability of the aorta are diminished. The usual course of treatment for an aneurysm of the ascending aorta is immediate surgery. The surgical procedure for either type is aimed at either repairing the intimal tear or removing the affected portion of the aorta. This may be done by suturing the separated aortic layers back together or by removing the damaged section of the aorta and replacing it with a synthetic graft.
axillary dissection (axillary lymph node dissection) surgical removal of axillary lymph nodes, done as part of radical mastectomy.
blunt dissection separation of tissues along natural lines of cleavage, by means of a blunt instrument or finger.
lymph node dissection lymphadenectomy.
lymph node dissection, retroperitoneal (RPLND) retroperitoneal lymphadenectomy.
sharp dissection separation of tissues by means of the sharp edge of a knife or scalpel, or with scissors.

dis·sec·tion

(di-sek'shŭn, dī-), Avoid the mispronunciation dī'sek-shŭn.
The act of dissecting.
Synonym(s): anatomy (3) [TA], necrotomy (1)

dissection

/dis·sec·tion/ (dĭ-sek´shun)
1. the act of dissecting.
2. a part or whole of an organism prepared by dissecting.

aortic dissection  a dissecting aneurysm of the aorta, usually the thoracic aorta.
axillary dissection  axillary lymph node d.
axillary lymph node dissection  surgical removal of axillary lymph nodes, done as part of radical mastectomy.
blunt dissection  dissection accomplished by separating tissues along natural cleavage lines, without cutting.
lymph node dissection  lymphadenectomy.
sharp dissection  dissection accomplished by incising tissues with a sharp edge.

dissection

(dĭ-sĕk′shən, dī-)
n.
1. The act or an instance of dissecting.
2. Something that has been dissected, such as a tissue specimen under study.

dissection

See dissect.

dissection

Surgery The separation of tissues or of one tissue plane from another. See Aquadissection, Axillary dissection, Balloon dissection, Blunt dissection, Full axillary dissection, Low axillary dissection, Modified neck dissection, Neck dissection, Radical neck dissection, Selective neck dissection, Sharp dissection.

dis·sec·tion

(di-sek'shŭn)
The act of dissecting.
Synonym(s): anatomy (3) , necrotomy (1) .

dissection

1. Separation of tissues by cutting, teasing or blunt division.
2. The act of dissecting.
3. An anatomical preparation that has been dissected.

Dissection

A cut or divide.
Mentioned in: Aortic Dissection

dissection

1. the act of dissecting.
2. a part or whole of an organism prepared by dissecting.
3. passage of blood between layers of the wall of a blood vessel.

blunt dissection
separation of tissues along natural lines of cleavage, by means of a blunt instrument or finger.
sharp dissection
separation of tissues by means of the sharp edge of a knife or scalpel, or with scissors.
water beam dissection
the use of a high-pressure jet of saline to remove parenchymal cells, retaining more resistant structures such as ducts, capsule and vessels.
References in periodicals archive ?
1) One report has described pseudointimal dissection in a Dacron graft leading to re-coarctation, which was managed surgically.
3) Noninvasive imaging has since greatly improved the diagnosis of cervical artery dissection and of stroke, (4) and cervical artery dissection is now recognized as pathogenic of strokes occurring in association with chiropractic manipulation.
Her symptoms regressed and after 2 weeks, neurosonologic findings showed no further progression of dissection.
For PS79, your "dissection experience" includes a two-course meal (chicken or vegetarian), a protective mask, hat and apron, disposable gloves, scalpels and dissection scissors, access to the anatomical samples and a professional certificate.
This was related to the frailty of the diseased vessel and the propagation of dissection with further instrumentation.
Further analyses showed that no subgroup of patients, including those defined by tumor burden, showed a significant melanoma-specific benefit from immediate-completion lymph node dissection.
The PlasmaBlade was associated with significantly less intraoperative blood loss than was cold dissection (mean: 15.
These include blunt dissection, guillotine excision, electrocautery, cryosurgery, coblation tonsillectomy, laser tonsillectomy monopolar and bipolar cautery tonsillectomy1,2.
Key words: Aortic dissection, myocardial infarction, subclavian artery occlusion
In another study on clinical imaging and neuroimaging in 18 ACA dissection cases, the etiological reasons were hypertension in 8 patients, smoking in 6, and diabetes mellitus in 4 (7).
Evidence shows that patients with acute complicated Type B aortic dissections can be safely and effectively treated with thoracic endovascular aortic repair (TEVAR)," said Dr.