Difference between
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Both are caused by the crystallization of salts from the blood.
When these crystals are deposited in the joints they cause inflammation and intense pain.
The difference between the two conditions is the nature of the crystals.
Gout crystals are uric acid salts, normally caused by excess uric acid (Hyperuricaemia).
Pseudogout crystals are Calcium Pyrophosphate Dihydrate.
Hence, this condition is also called Calcium Pyrophosphate Dihydrate Deposition disease or CPDD.
CPDD can lead to calcium deposits in the cartilage - a condition known as chondrocalcinosis.
Pseudogout Causes
Only some of the reasons for calcium deposits are known. These are:- Hemochromatosis - excess iron storage
- Hypercalcemia - excessive calcium in the blood
- Hypothyroidism - severely underactive thyroid
- Low magnesium levels in blood
- Overactive parathyroid gland
Risks rise with age. 3% of 60 year olds are affected, rising to 50% of 90 year olds.
Diagnosing Pseudo Gout
Due to the similarity with gout, pseudogout is difficult to diagnose.It normally affects the knee and larger joints, very rarely the toes.
However, it can exist at the same time as gout, and so symptoms are confusing.
The only way certain diagnosis can be achieved is through the analysis of fluid drawn from the affected joint. Careful study of crystals drawn from the joint will determine if one or both conditions are present.
Pseudo Gout Treatments
For pain relief, most regular gout treatments are suitable. Colchicine and NSAIDs are often prescribed. Cortisone injections into the joint can help. Ice therapy and gentle exercise followed by rest, with the affected joint above the heart, have been known to provide some relief. If joints become severely damaged then surgery may be required.Unfortunately, there is no known treatment for preventing pseudogout. If the cause is one of the conditions listed above, then treating that condition may slow down the progress of pseudogout.
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Pseudogout is often called sudogout, or sudo gout.
Please note that pseudo gout is a serious medical condition. If you have it, or suspect it, please consult a rheumatologist. You can find one near you in the College of Rheumatology global listings.
Please leave your comments or questions about pseudo gout at Gout Pal Interactive.
Leave Pseudo Gout to browse Signs and Symptoms of Gout
