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Effects of 3 years of intravenous pamidronate treatment on bone markers and bone mineral density in a patient with osteoporosis-pseudoglioma syndrome (OPPG).

Abstract
We present a 21 year-old woman with osteoporosis-pseudoglioma syndrome (OPPG) suffering from bone pain and frequent long bone fractures (approximately 1 or 2 fractures/year) who was treated with i.v. pamidronate for 3 years. OPPG is a rare autosomal recessive disorder characterized by severe widespread osteoporosis leading to pathological fractures and congenital or early onset blindness. Bone mineral density (BMD) (g/cm2) was determined at lumbar spine and femur neck by dual energy X-ray absorptiometry. BMD studies were also performed in her parents and 18 year-old brother who were phenotypically normal. Within 2 months of the first pamidronate treatment the patient reported considerable decrease in bone pain and improved mobility. During the treatment period no important side effects and no recurrent bone fracture were reported. There were substantial increases in BMD, T score and z-score at both lumbar spine and femoral neck during therapy. Baseline lumbar spine BMD increased from 0.416 to 0.489 g/cm2 and femoral neck BMD increased from 0.455 to 0.532 g/cm2 after 3 years. Although her parents and brother did not have any history of fracture, BMD measurements revealed that her parents were osteopenic and her brother was osteoporotic. We demonstrated that pamidronate therapy seems to be safe and beneficial in both spinal and peripheral skeleton osteoporosis in patients with OPPG. Moreover, the present study clearly indicates that bone density studies and LRPS gene screening for mutations should be performed in phenotypically normal family members of patients with OPPG.
AuthorsFahri Bayram, Fatih Tanriverdi, Selim Kurtoğlu, M Emre Atabek, Mustafa Kula, Leyla Kaynar, Fahrettin Keleştimur
JournalJournal of pediatric endocrinology & metabolism : JPEM (J Pediatr Endocrinol Metab) Vol. 19 Issue 3 Pg. 275-9 (Mar 2006) ISSN: 0334-018X [Print] England
PMID16607930 (Publication Type: Case Reports, Journal Article)
Chemical References
  • Bone Density Conservation Agents
  • Diphosphonates
  • pamidronate
Topics
  • Abnormalities, Multiple
  • Adolescent
  • Adult
  • Bone Density (drug effects)
  • Bone Density Conservation Agents (administration & dosage)
  • Central Nervous System Neoplasms (complications)
  • Diphosphonates (administration & dosage)
  • Female
  • Fractures, Bone (etiology, physiopathology, prevention & control)
  • Glioma (complications)
  • Humans
  • Injections, Intravenous
  • Osteoporosis (complications, drug therapy, metabolism)
  • Pain (drug therapy, etiology)
  • Syndrome
  • Treatment Outcome

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