Diagnostic Rentability of Screening for Associated Conditions in Calcium Pyrophosphate Deposition Disease Patients
Diagnostic Rentability of Screening for Associated Conditions in Calcium Pyrophosphate Deposition Disease Patients
The purpose of this study is to determine whether thorough analytical evaluation is useful to
 diagnose metabolic conditions associated to calcium pyrophosphate deposition disease.
The diagnostic usefulness of screening for hyperparathyroidism, hemochromatosis,
 hypothyroidism and hypophosphatasia in patients diagnosed with calcium pyrophosphate
 dihydrate (CPPD) deposition disease is uncertain.

 Patients diagnosed with CPPD deposition disease were compared to patients with rheumatoid
 arthritis and psoriatic arthritis over a 9-year period. All patients were prospectively
 followed for at least 12 months. Serum calcium, phosphorus, alkaline phosphatase,
 thyroid-stimulating hormone, ferritin, iron, and total iron binding capacity were determined
 in all patients.
Inclusion Criteria:

 -  Patients diagnosed as having calcium pyrophosphate dihydrate deposition disease.

 Exclusion Criteria:

 -  Patients mimicking a rheumatoid arthritis disease, with positive rheumatoid factor or
 with psoriasis.