Takayasu's arteritis
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| Takayasu's arteritis Classification and external resources | |
 | |
|---|---|
| Takayasu's arteritis. Image courtesy of Professor Peter Anderson DVM PhD and published with permission © PEIR, University of Alabama at Birmingham, Department of Pathology | |
| ICD-10 | M31.4 |
| ICD-9 | 446.7 |
| OMIM | 207600 |
| DiseasesDB | 12879 |
| MedlinePlus | 001250 |
| eMedicine | med/2232 ped/1956 neuro/361 radio/51 |
| MeSH | D013625 |
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Takayasu's arteritis is an inflammatory disease of unknown etiology that affects the aorta and its branches. Although it has been reported worldwide, it shows a predilection for young Asian women. Females with this disease outnumber males by 8:1, and the age of onset is typically between 15 and 30 years. In the Western world, atherosclerosis is a more frequent cause of obstruction of the aortic arch vessels than is Takayasu's arteritis.
History
The first case of Takayasu’s arteritis was described in 1908 by Dr. Mikito Takayasu at the Annual Meeting of the Japan Ophthalmology Society.[1][1] Dr. Takayasu described a peculiar "wreathlike" appearance of blood vessels in the back of the eye (retina). Two Japanese colleagues at the same meeting (Dr. Onishi and Dr. Kagoshima) reported similar eye findings in patients whose wrist pulses were absent. It is now known that the blood vessel malformations that occur in the retina are a response (new blood vessel growth) to arterial narrowings in the neck, and that the absence of pulses noted in some patients occur because of narrowings of blood vessels to the arms. The eye findings described by Takayasu are rarely seen in patients from North America.
Symptoms
About half of all patients develop an initial systemic illness with symptoms of malaise, fever, night sweats, weight loss, arthralgia, and fatigue. There is often an anemia and marked elevation of the ESR. This phase gradually subsides and is followed by a more chronic stage characterized by inflammatory and obliterative changes in the aorta and its branches. The other half of patients with Takayasu's arteritis present with only late vascular changes, without an antecedent systemic illness. In the late stage, weakness of the arterial walls may give rise to localized aneurysms.
Four types of late-phase Takayasu arteritis are described on the basis of the sites of involvement as follows:[1]
- Type I - Classic pulseless type that involves the brachiocephalic trunk, carotid arteries, and subclavian arteries
- Type II - Combination of type I and III
- Type III - Atypical coarctation type that involves the thoracic and abdominal aortas distal to the arch and its major branches
- Type IV - Dilated type that involves extensive dilatation of the length of the aorta and its major branches
Treatment
The great majority of patients with Takayasu’s arteritis respond to prednisone. The usual starting dose is approximately 1 milligram per kilogram of body weight per day (for most people, this is approximately 60 milligrams a day). Because of the significant side effects of long-term high–dose prednisone use, the starting dose is tapered over several weeks to a dose that the physician feels is tolerable for the patient.
References
External links
- Johns Hopkins Vasculitis Center Discusses Takayasu's Arteritis
- Takayasu's Arteritis Research Association
- Vasculitis Association
- 00389 at CHORUS
- -362086386 at GPnotebook
fr:Artérite de Takayasu ja:大動脈炎症候群
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
