Difference between revisions of "Vascular disease"
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==Aortic dissection== | ==Aortic dissection== | ||
===Associations=== | ===General=== | ||
====Associations==== | |||
Heritable:<ref name=pmid16253833>{{cite journal |author=Gleason TG |title=Heritable disorders predisposing to aortic dissection |journal=Semin. Thorac. Cardiovasc. Surg. |volume=17 |issue=3 |pages=274-81 |year=2005 |pmid=16253833 |doi=10.1053/j.semtcvs.2005.06.001 |url=}}</ref> | Heritable:<ref name=pmid16253833>{{cite journal |author=Gleason TG |title=Heritable disorders predisposing to aortic dissection |journal=Semin. Thorac. Cardiovasc. Surg. |volume=17 |issue=3 |pages=274-81 |year=2005 |pmid=16253833 |doi=10.1053/j.semtcvs.2005.06.001 |url=}}</ref> | ||
*[[Marfan's syndrome]]. | *[[Marfan's syndrome]]. | ||
| Line 70: | Line 71: | ||
Others: | Others: | ||
*Tertiary [[syphilis]]. | *Tertiary [[syphilis]]. | ||
====Classification==== | |||
Dissections often classified as:<ref name=pmid9362838>{{cite journal |author=Finkelmeier BA |title=Dissection of the aorta: a clinical update |journal=J Vasc Nurs |volume=15 |issue=3 |pages=88-93 |year=1997 |month=September |pmid=9362838 |doi= |url=}}</ref> | |||
*Type A - aortic root to the left subclavian artery. | |||
**Considered a surgical emergency. | |||
*Type B - distal to (left) subclavian artery. | |||
**Generally, treated conservatively. | |||
===Microscopic=== | |||
:See: ''[[cystic medial degeneration]]''. | |||
==Cystic medial degeneration== | ==Cystic medial degeneration== | ||
Revision as of 01:09, 28 November 2011
The article covers vascular disease, i.e. diseases of blood vessels. Vasculitides are covered in a separate article called vasculitides.
Normal blood vessels
Comparing arteries and veins:[1]
| Feature | Artery | Vein |
| Internal elastic lamina | prominent/thick, usu. complete | thin & incomplete |
| External elastic lamina | present, thick | absent |
| Shape | circular / lumen wide open | collapsed |
| Wall thickness | thick | thin |
Great vessels
When things go wrong here, you see a cardiac surgeon.
Atherosclerosis
General
- Coronary artery atherosclerosis -> myocardial infarction, coronary thrombosis.
- Peripheral artery atherosclerosis -> peripheral vascular disease -> amputations.
- Carotid artery atherosclerosis -> thrombotic stroke.
Clinical risk factors:
- Age.
- Blood pressure - modifiable (antihypertensives).
- Cholesterol - modifiable (statins, diet).
- Diabetes mellitus - modifiable (hypoglycemic medications, diet, lifestyle).
- Smoking - modifiable (cessation).
- Family history.
Microscopic
Features:
- Intimal hyperplasia.
- Lipid deposition.
- Foamy macrophages within intima & media.
- Cholesterol clefts
- Luminal narrowing.
Image:
Notes:
- Considered "complex" if any of the following are present:[2]
- Calcifications.
- Thrombosis.
- Haemorrhage.
Aortic dissection
General
Associations
Heritable:[3]
- Marfan's syndrome.
- Loeys-Dietz syndrome.[4]
- Marfan-like syndrome.
- Ehlers-Danlos syndrome.
- Bicuspid aortic valve.
Others:
- Tertiary syphilis.
Classification
Dissections often classified as:[5]
- Type A - aortic root to the left subclavian artery.
- Considered a surgical emergency.
- Type B - distal to (left) subclavian artery.
- Generally, treated conservatively.
Microscopic
Cystic medial degeneration
General
Microscopic
- Basophilic ground substance in the media (seen on Movat's stain).
- Disruption of the elastic lamina (seen on elastic trichrome stain).
- +/-Focal necrosis.
Images:
- www:
- WC:
Medial calcific sclerosis
- AKA Moenckeberg medial calcific sclerosis, calcific medial sclerosis of Monckeberg, and Monckeberg's arteriosclerosis.
General
- Usually of no clinical consequence.
Microscopic
Features:[9]
- Medial calcification (purple irregular stuff -- calcium phosphate).
Note:
- Lumen unaffected.
Images:
Hyperplastic arteriolosclerosis
General
- Hyperplasia = proliferation of cells.
- Associated with:[10]
- Malignant hypertension.
- Scleroderma.
Microscopic
Features:[9]
- Onion-skin appearance of intima & media due to:
- Intimal hyperplasia.
- Smooth muscle hyperplasia.
Image: Hyperplastic arteriolosclerosis (utah.edu).
See also
References
- ↑ URL: http://www.lab.anhb.uwa.edu.au/mb140/corepages/vascular/vascular.htm. Accessed on: 13 January 2011.
- ↑ Klatt, Edward C. (2006). Robbins and Cotran Atlas of Pathology (1st ed.). Saunders. pp. 4. ISBN 978-1416002741.
- ↑ Gleason TG (2005). "Heritable disorders predisposing to aortic dissection". Semin. Thorac. Cardiovasc. Surg. 17 (3): 274-81. doi:10.1053/j.semtcvs.2005.06.001. PMID 16253833.
- ↑ Loeys BL, Schwarze U, Holm T, et al (August 2006). "Aneurysm syndromes caused by mutations in the TGF-beta receptor". N. Engl. J. Med. 355 (8): 788-98. doi:10.1056/NEJMoa055695. PMID 16928994. http://content.nejm.org/cgi/content/full/355/8/788.
- ↑ Finkelmeier BA (September 1997). "Dissection of the aorta: a clinical update". J Vasc Nurs 15 (3): 88-93. PMID 9362838.
- ↑ URL: http://emedicine.medscape.com/article/756835-overview. Accessed on: 12 August 2010.
- ↑ URL: http://emedicine.medscape.com/article/756835-overview. Accessed on: 12 August 2010.
- ↑ Ha HI, Seo JB, Lee SH, et al. (2007). "Imaging of Marfan syndrome: multisystemic manifestations". Radiographics 27 (4): 989–1004. doi:10.1148/rg.274065171. PMID 17620463. http://radiographics.rsna.org/content/27/4/989.full.
- ↑ 9.0 9.1 Klatt, Edward C. (2006). Robbins and Cotran Atlas of Pathology (1st ed.). Saunders. pp. 7. ISBN 978-1416002741.
- ↑ URL: http://library.med.utah.edu/WebPath/IMMHTML/IMM028.html. Accessed on: 11 May 2011.