What is Temporal Arteritis?
Temporal arteritis (giant cell arteritis, and also called arteritis cranialis, Horton disease, granulomatous arteritis, and arteritis of the aged) is a type of vascular inflammation that frequently occurs in older people and damages medium- and large-sized arteries. It is called temporal arteritis because it often affects the arteries in the head, near the temples.
What are Symptoms of Temporal Arteritis?
Early signs of temporal arteritis (giant cell arteritis) include:
These early signs may come on quickly or slowly, and may last a few days to a few weeks.
Symptoms of temporal arteritis (giant cell arteritis) include:
- Usually a new headache in someone who has no history of headaches, or a new type of headache in a person with chronic headaches
- Headache is localized to the temples and lower back of the skull, sometimes the upper part of the back of the neck
- Continuous dull or burning pain
- May be severe
- Scalp may feel tender when brushing hair, wearing a hat, or wearing eyeglasses
- Neck, torso, shoulder, and pelvic pain consistent with polymyalgia rheumatica (PMR)
- Feeling unwell (malaise)
- Pain and discomfort in the jaw when chewing
- Generalized muscle aches and pains
- Cough and sore throat
Less common symptoms of temporal arteritis (giant cell arteritis) include:
What Causes Temporal Arteritis?
The cause of temporal arteritis (giant cell arteritis) is unknown. It is believed that genetic, environmental, and autoimmune factors may be involved.
Risk factors for developing temporal arteritis (giant cell arteritis) include:
- Age over 50
- Being female
- Family history of the condition
- Northern European or Scandinavian descent
- Having polymyalgia rheumatica (PMR)
How is Temporal Arteritis Diagnosed?
Temporal arteritis (giant cell arteritis) is diagnosed with a history, medical exam, and blood tests, especially tests for inflammation, such as:
- Erythrocyte sedimentation rate (ESR or "sed rate")
- C-reactive protein (CRP)
- Complete blood cell count (CBC)
If the blood tests suggest temporal arteritis (giant cell arteritis) the diagnosis is confirmed, either by biopsy of the temporal artery or with imaging tests such as:
What is the Treatment for Temporal Arteritis?
The mainstay of treatment for temporal arteritis (giant cell arteritis) is high-dose corticosteroid therapy.
Patients on long term steroid therapy may experience side effects from the medications, and so also typically receive prophylactic treatment including:
Alternative treatments to steroids include:
What are Complications of Temporal Arteritis?
With treatment, complications of temporal arteritis (giant cell arteritis) are uncommon, however, the risk of complications is high for patients who are not treated.
Complications of untreated temporal arteritis (giant cell arteritis) include:
- Vision problems such as double vision
- Death from heart attack, stroke, or dissecting aortic aneurysm
Temporal arteritis (giant cell arteritis) is usually treated with long-term use of steroids, which can also cause complications, such as:
- Collapsed vertebra
- Symptomatic steroid-induced muscle weakness
- Steroid psychosis