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Long-term outcomes in patients with calciphylaxis from hyperparathyroidism
Allison Duffy1, Michael Schurr, Thomas Warner
1Section of Endocrine Surgery, Department of Surgery, University of Wisconsin-Madison, Madison, Wisconsin 53792-7375, USA.
Annals of Surgical Oncology
|December 27, 2005
Summary
Parathyroidectomy significantly improves wound healing and survival in patients with calciphylaxis, a rare condition linked to chronic kidney disease. Early surgical intervention is recommended for better outcomes.
Area of Science:
- Nephrology
- Vascular Surgery
- Dermatology
Background:
- Calciphylaxis is a rare, severe condition in chronic renal failure patients.
- It involves calcium/phosphorus metabolism abnormalities, leading to calcification and painful skin lesions.
- Parathyroidectomy is a potential intervention, but its long-term effects on healing and survival are unclear.
Purpose of the Study:
- To evaluate the long-term outcomes of parathyroidectomy in calciphylaxis patients.
- To compare survival and wound healing rates between parathyroidectomy and medical therapy.
Main Methods:
- Retrospective review of 15 calciphylaxis patients (1987-2003).
- 9 patients received medical therapy (bisphosphonates, phosphate binders).
- 6 patients underwent parathyroidectomy (subtotal or total).
- Survival analyzed using Kaplan-Meier; wound healing and PTH levels compared.
Main Results:
- All 6 parathyroidectomy patients showed partial/complete wound healing.
- Only 2 of 9 medically treated patients improved.
- Parathyroidectomy patients had longer median survival (39 vs. 3 months).
- Parathyroidectomy reduced intact parathyroid hormone levels.
Conclusions:
- Parathyroidectomy is associated with improved long-term survival and wound healing in calciphylaxis.
- Earlier parathyroidectomy correlates with better outcomes.
- Prompt referral for parathyroidectomy is advised for calciphylaxis patients with secondary hyperparathyroidism.