title: One-shot high-dose pamidronate disodium (APD): effective, simple treatment for hypercalcaemia in haematological malignancy.
abstract: Fifteen patients with haematological malignancy and hypercalcaemia (mean +/- SEM calcium 3.44 +/- 0.14 mmol/l) received pamidronate (1 mg/kg) by infusion on 17 occasions (two patients were retreated 2 and 6 months after the first dose). After 4 days the plasma calcium had fallen to 2.84 +/- 0.14 mmol/l (P less than 0.001; n = 17), and in 10/17 episodes was less than 2.6 mmol/l. The mean fall was 0.61 mmol/l (95% confidence intervals 0.49-0.72 mmol/l). By 7 days a further decrease to 2.53 +/- 0.10 mmol/l had occurred, continuing to 2.38 +/- 0.11 mmol/l after 14 days. Plasma phosphate fell from 1.18 +/- 0.16 to 0.74 +/- 0.07 mmol/l at 7 days (P less than 0.001; n = 12). In 9 of the 17 episodes plasma creatinine initially exceeded 120 mumol/l (four of these greater than 300 mumol/l). This did not impair the response to pamidronate and there was no significant change in plasma creatinine following treatment. A single large dose of pamidronate was a simple, well-tolerated and very reliable treatment for hypercalcaemia complicating haematological malignancy, irrespective of renal function.
authors.affiliation: Department of Nephrology, London Hospital.
authors.forename: N
authors.initials: N
authors.lastname: Sawyer
authors.forename: C
authors.initials: C
authors.lastname: Newstead
authors.forename: A
authors.initials: A
authors.lastname: Drummond
authors.forename: A
authors.initials: A
authors.lastname: Newland
authors.forename: J
authors.initials: J
authors.lastname: Cunningham
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D004164:Diphosphonates / Q000627:therapeutic use*; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D006934:Hypercalcemia / Q000188:drug therapy*; D007945:Leukemia, Lymphoid / Q000097:blood / Q000150:complications; D015464:Leukemia, Myelogenous, Chronic, BCR-ABL Positive / Q000097:blood / Q000150:complications; D008228:Lymphoma, Non-Hodgkin / Q000097:blood / Q000150:complications; D008297:Male; D008875:Middle Aged; D009101:Multiple Myeloma / Q000097:blood / Q000150:complications; D000077268:Pamidronate; D010257:Paraneoplastic Syndromes / Q000188:drug therapy*
chemical_list: D004164:Diphosphonates; D000077268:Pamidronate