Bone Mineral Parameters in Peritoneal Dialysis Patients after Lowering Calcium Concentration in Dialysis Fluids: A Case Series in Patients Using Icodextrin

In patients treated with peritoneal dialysis (PD), lowering the calcium level in PD fluids results in lower serum calcium levels and higher parathyroid hormone (PTH) levels. It is hypothesized that this effect is attenuated when patients are using icodextrin 7.5% for the once-daily long dwell (conta...

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Main Authors: Lara C. Verschuur, Anouschka G. Liefting, Bastiaan van Dam, Erik L. Penne, Fenneke C. Frerichs
Format: Article
Language:English
Published: Karger Publishers 2023-11-01
Series:Case Reports in Nephrology and Dialysis
Subjects:
Online Access:https://beta.karger.com/Article/FullText/534476
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author Lara C. Verschuur
Anouschka G. Liefting
Bastiaan van Dam
Erik L. Penne
Fenneke C. Frerichs
author_facet Lara C. Verschuur
Anouschka G. Liefting
Bastiaan van Dam
Erik L. Penne
Fenneke C. Frerichs
author_sort Lara C. Verschuur
collection DOAJ
description In patients treated with peritoneal dialysis (PD), lowering the calcium level in PD fluids results in lower serum calcium levels and higher parathyroid hormone (PTH) levels. It is hypothesized that this effect is attenuated when patients are using icodextrin 7.5% for the once-daily long dwell (containing high calcium concentration). In this case series, we included 8 stable PD patients (mean age 68 ± 13 years, 7 male), all using icodextrin 7.5% (containing 1.75 mmol/L calcium) for the once-daily long dwell. The calcium content of the PD fluids for the remaining dwells was lowered from 1.75 mmol/L to 1.25 mmol/L. Bone mineral parameters and phosphate prescription at baseline, 6 weeks after this change, and after 6 months were compared. After lowering calcium concentration of the PD fluids – except for the icodextrin 7.5% – from 1.75 mmol/L to 1.25 mmol/L, calcium levels changed from 2.32 ± 0.11 to 2.29 ± 0.12 (p = NS); intact PTH (iPTH) from 39.6 ± 28.3 to 64.9 ± 34.5 pmol/L (p = 0.045); and alkaline phosphatase from 104.13 ± 48.75 to 101.38 ± 32.39 (p = NS). After 6 months, all bone mineral parameters were similar to baseline levels; however, slightly higher calcium-based phosphate binders were prescribed. Lowering calcium content from 1.75 mmol/L to 1.25 mmol/L in PD fluids in patients on icodextrin resulted in stable calcium values, a temporal increase in iPTH and a modest increase in calcium-based phosphate binder prescription. Using icodextrin for the long once-daily dwell appears to attenuate the effects on bone mineral parameters when lowering the calcium concentration of the short dwells.
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spelling doaj.art-0876bca63710471194b0a9123b91a8352023-12-07T07:19:15ZengKarger PublishersCase Reports in Nephrology and Dialysis2296-97052023-11-0113118419010.1159/000534476534476Bone Mineral Parameters in Peritoneal Dialysis Patients after Lowering Calcium Concentration in Dialysis Fluids: A Case Series in Patients Using IcodextrinLara C. Verschuur0Anouschka G. Liefting1Bastiaan van Dam2Erik L. Penne3Fenneke C. Frerichs4Department of Internal Medicine, Northwest Clinics Alkmaar, Alkmaar, The NetherlandsDepartment of Internal Medicine, Northwest Clinics Alkmaar, Alkmaar, The NetherlandsDepartment of Internal Medicine, Northwest Clinics Alkmaar, Alkmaar, The NetherlandsDepartment of Internal Medicine, Northwest Clinics Alkmaar, Alkmaar, The NetherlandsDepartment of Internal Medicine, Northwest Clinics Alkmaar, Alkmaar, The NetherlandsIn patients treated with peritoneal dialysis (PD), lowering the calcium level in PD fluids results in lower serum calcium levels and higher parathyroid hormone (PTH) levels. It is hypothesized that this effect is attenuated when patients are using icodextrin 7.5% for the once-daily long dwell (containing high calcium concentration). In this case series, we included 8 stable PD patients (mean age 68 ± 13 years, 7 male), all using icodextrin 7.5% (containing 1.75 mmol/L calcium) for the once-daily long dwell. The calcium content of the PD fluids for the remaining dwells was lowered from 1.75 mmol/L to 1.25 mmol/L. Bone mineral parameters and phosphate prescription at baseline, 6 weeks after this change, and after 6 months were compared. After lowering calcium concentration of the PD fluids – except for the icodextrin 7.5% – from 1.75 mmol/L to 1.25 mmol/L, calcium levels changed from 2.32 ± 0.11 to 2.29 ± 0.12 (p = NS); intact PTH (iPTH) from 39.6 ± 28.3 to 64.9 ± 34.5 pmol/L (p = 0.045); and alkaline phosphatase from 104.13 ± 48.75 to 101.38 ± 32.39 (p = NS). After 6 months, all bone mineral parameters were similar to baseline levels; however, slightly higher calcium-based phosphate binders were prescribed. Lowering calcium content from 1.75 mmol/L to 1.25 mmol/L in PD fluids in patients on icodextrin resulted in stable calcium values, a temporal increase in iPTH and a modest increase in calcium-based phosphate binder prescription. Using icodextrin for the long once-daily dwell appears to attenuate the effects on bone mineral parameters when lowering the calcium concentration of the short dwells.https://beta.karger.com/Article/FullText/534476peritoneal dialysiscalciumicodextrinphysionealmineral bone diseasephosphate binders
spellingShingle Lara C. Verschuur
Anouschka G. Liefting
Bastiaan van Dam
Erik L. Penne
Fenneke C. Frerichs
Bone Mineral Parameters in Peritoneal Dialysis Patients after Lowering Calcium Concentration in Dialysis Fluids: A Case Series in Patients Using Icodextrin
Case Reports in Nephrology and Dialysis
peritoneal dialysis
calcium
icodextrin
physioneal
mineral bone disease
phosphate binders
title Bone Mineral Parameters in Peritoneal Dialysis Patients after Lowering Calcium Concentration in Dialysis Fluids: A Case Series in Patients Using Icodextrin
title_full Bone Mineral Parameters in Peritoneal Dialysis Patients after Lowering Calcium Concentration in Dialysis Fluids: A Case Series in Patients Using Icodextrin
title_fullStr Bone Mineral Parameters in Peritoneal Dialysis Patients after Lowering Calcium Concentration in Dialysis Fluids: A Case Series in Patients Using Icodextrin
title_full_unstemmed Bone Mineral Parameters in Peritoneal Dialysis Patients after Lowering Calcium Concentration in Dialysis Fluids: A Case Series in Patients Using Icodextrin
title_short Bone Mineral Parameters in Peritoneal Dialysis Patients after Lowering Calcium Concentration in Dialysis Fluids: A Case Series in Patients Using Icodextrin
title_sort bone mineral parameters in peritoneal dialysis patients after lowering calcium concentration in dialysis fluids a case series in patients using icodextrin
topic peritoneal dialysis
calcium
icodextrin
physioneal
mineral bone disease
phosphate binders
url https://beta.karger.com/Article/FullText/534476
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