Artery of Adamkiewicz
Artery of Adamkiewicz | |
---|---|
Coronal slab volume rendering image of CT aortography shows artery of Adamkiewicz entering spinal canal(arrowheads) and joining the anterior spinal artery (arrows) after a hairpin turn.
|
|
Details | |
Latin | rami spinales arteriae vertebralis |
Source | abdominal aorta, posterior intercostal artery |
Branches | anterior spinal artery[2] |
Supplies | lumbar enlargement of lower spinal cord[1] |
Identifiers | |
Dorlands /Elsevier |
r_02/12692029 |
TA | Lua error in Module:Wikidata at line 744: attempt to index field 'wikibase' (a nil value). |
TH | {{#property:P1694}} |
TE | {{#property:P1693}} |
FMA | {{#property:P1402}} |
Anatomical terminology [[[d:Lua error in Module:Wikidata at line 863: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]]
|
In human anatomy, the artery of Adamkiewicz (also arteria radicularis magna) is the largest anterior segmental medullary artery.[3] The artery is named after Albert Wojciech Adamkiewicz (August 11, 1850 – October 31, 1921) a Polish-Jewish pathologist born in Żerków.
It has several other names, including:
- Adamkiewicz artery
- great radicular artery of Adamkiewicz[4]
- major anterior segmental medullary artery
- artery of the lumbar enlargement[5]
- great anterior radiculomedullary artery[6]
- great anterior segmental medullary artery[7]
It typically arises from a left posterior intercostal artery at the level of the 9th to 12th intercostal artery , which branches from the aorta, and supplies the lower two thirds of the spinal cord via the anterior spinal artery.[8]
Anatomical variations
The spinal cord vasculature has a complex and highly variable anatomy.[9] In a study of approximately 70 people that examined the spinal cord's blood supply it was found that:[8]
- The Adamkiewicz artery sometimes arises from a lumbar vessel.
- In approximately 30% of people it arises from the right side.
- One quarter of people have two large anterior segmental medullary arteries.
In 75% of people, the artery of Adamkiewicz originates on the left side of the aorta between the T8 and L1 vertebral segments.[10]
In an extensive literature review, recognition of the AKA using CT and/or MR was achieved in 466 of 555 cases (83.96%)and in 384 (83.3%) cases the AKA originated from a left intercostal artery.[11]
Clinical significance
"Great radicular artery of Adamkiewicz… provides the major blood supply to the lumbar and sacral cord."[12]
When damaged or obstructed, it can result in anterior spinal artery syndrome,[13] with loss of urinary and fecal continence and impaired motor function of the legs; sensory function is often preserved to a degree.
It is important to identify the location of the artery when surgically treating an aortic aneurysm to prevent damage which would result in insufficient blood supply to the spinal cord.[14] In bronchial artery embolization for treatment of massive hemoptysis, one of the most serious complications is inadvertent occlusion of the artery of Adamkiewicz.[15] Its location can be identified with computed tomographic angiography.[16]
Eponym
It is named for Albert Wojciech Adamkiewicz.[17][18][19]
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.[page needed]
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ synd/2233 at Who Named It?
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- A video showing the Adamkiewicz artery can be seen here: AKA finding using OsiriX