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01.03.2012 | Original Article | Ausgabe 3/2012

Langenbeck's Archives of Surgery 3/2012

Parathyroidectomy for the attainment of NKF-K/DOQI™ and KDIGO recommended values for bone and mineral metabolism in dialysis patients with uncontrollable secondary hyperparathyroidism

Zeitschrift:
Langenbeck's Archives of Surgery > Ausgabe 3/2012
Autoren:
Bojan Kovacevic, Mile Ignjatovic, Vladan Zivaljevic, Vladimir Cuk, Milena Scepanovic, Zaklina Petrovic, Ivan Paunovic

Abstract

Purpose

The National Kidney Foundation Kidney Disease Outcomes Quality Initiative (NKF-K/DOQI™) 2003 and Kidney Disease: Improving Global Outcomes (KDIGO) 2009 have established guidelines for the treatement of secondary hyperparathyroidism. This study evaluated the impact of parathyroidectomy to achieve recommended values for parathyroid hormone, calcium, phosphorus and CaxPO4 product in dialysis patients with severe secondary hyperparathyroidism that is resistant to medical treatment.

Methods

This study included 43 consecutive patients who underwent parathyroidectomy for a severe form of secondary hyperparathyroidism (SHPT) that is unresponsive to medical treatment. The serum iPTH, calcium and phosphorus levels were measured prior to surgery, every morning after surgery for 5 days and on the first, sixth and eighth postoperative months.

Results

Following parathyroidectomy, a significant decline in iPTH values was observed in all patients; however, after the 8-month study period, only one of these patients achieved a serum iPTH concentration within the K/DOQI recommended target range. Unlike iPTH, targeting for calcium, phosphorus and CaxPO4 at the last follow-up were 55.8%, 60.5% and 93%, respectively. These values indicated a significant improvement in comparison to preoperative percentages. In regards to the KDIGO recommended guidelines, the iPTH levels did not significantly change at the end of our study compared to preoperative values; however, calcium levels significantly declined and phosphorus levels significantly improved compared to preoperative values.

Conclusions

Although the majority of patients fail to reach recommended iPTH values, parathyroidectomy remains a valuable tool to attain these NKF-K/DOQI recommendations for serum calcium, phosphorus and CaxPO4 in dialysis patients with secondary hyperparathyroidism resistant to medical therapy. Parathyroidectomy was shown to be an inadequate intervention for achieving KDIGO recommendations.

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