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Improvement of peritoneal calcification after parathyroidectomy in a peritoneal dialysis patient.

Abstract
Peritoneal calcification is one of the complications of peritoneal dialysis (PD). It can become serious, leading to severe abdominal pain and even death. Possible mediators of peritoneal calcification in PD patients are assumed to include acetate buffer, overdosage of vitamin D, repeated peritonitis, hypertonic dialysate, calciphylaxis and secondary hyperparathyroidism (SHPT). However, the mechanism and treatment of peritoneal calcification are controversial. Few reports have appeared on improvement of peritoneal calcification after parathyroidectomy (PTX) for SHPT of long duration. We report herein the case of a 48-year-old man on dialysis for 17 years including PD for 14 years. In 1989, he was admitted to hospital because of end-stage renal disease (ESRD), and started treatment with PD. Abdominal computed tomography (CT) first showed peritoneal calcification in August 2002. Peritoneal calcification did not improve despite conventional treatment including discontinuation of PD, control of calcium phosphate product to less than 55 mg2/dl2, removal of the peritoneal catheter and empirical prednisolone (PSL) usage. The intact parathyroid hormone (i-PTH) level was increased over 1,000 pg/ml and extra-osseous calcification occurred. Total PTX was performed in November 2004. Postoperatively, the i-PTH level decreased immediately and calcium phosphate product was maintained in the reference range. Abdominal CT after PTX showed improvement of peritoneal calcification in September 2005. It appeared that PTX could be used to treat patients with persistent peritoneal calcification not responding to conventional treatment. It was postulated that SHPT might play a crucial role in accelerating peritoneal calcification in PD patients.
AuthorsH Inoshita, T Gohda, H Io, K Kaneko, C Hamada, S Horikoshi, Y Tomino
JournalClinical nephrology (Clin Nephrol) Vol. 69 Issue 1 Pg. 58-62 (Jan 2008) ISSN: 0301-0430 [Print] Germany
PMID18218318 (Publication Type: Case Reports, Journal Article)
Topics
  • Adult
  • Biopsy
  • Calcinosis (diagnosis, etiology, surgery)
  • Follow-Up Studies
  • Humans
  • Hyperparathyroidism, Secondary (complications, surgery)
  • Kidney Failure, Chronic (therapy)
  • Male
  • Parathyroidectomy (methods)
  • Peritoneal Cavity
  • Peritoneal Dialysis (adverse effects)
  • Tomography, X-Ray Computed

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