Rapid calcium loss may cause arrhythmia in hemofiltration with regional citrate anticoagulation: a case report

Abstract Background Renal replacement therapy (RRT) with regional citrate anticoagulation (RCA) is an important therapeutic approach for refractory hypercalcemia complicated with renal failure. However, RCA has the potential to induce arrhythmia caused by rapid calcium loss. We report a case of arrh...

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Main Authors: Buyun Wu, Jing Wang, Guang Yang, Changying Xing, Huijuan Mao
Format: Article
Language:English
Published: BMC 2018-06-01
Series:BMC Nephrology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12882-018-0936-z
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author Buyun Wu
Jing Wang
Guang Yang
Changying Xing
Huijuan Mao
author_facet Buyun Wu
Jing Wang
Guang Yang
Changying Xing
Huijuan Mao
author_sort Buyun Wu
collection DOAJ
description Abstract Background Renal replacement therapy (RRT) with regional citrate anticoagulation (RCA) is an important therapeutic approach for refractory hypercalcemia complicated with renal failure. However, RCA has the potential to induce arrhythmia caused by rapid calcium loss. We report a case of arrhythmia associated with rapid calcium loss during RCA-RRT. Case presentation A 51-year-old man with hypercalcemia, primary hyperparathyroidism, and acute kidney injury was treated by predilutional-RCA-hemofiltration at a rate of 4.3 L/h. The effect of lowering serum calcium was unsatisfactory despite reducing calcium substitution gradually from 5.3 to 2.2 mmol/h in the first 8-h session of RCA-hemofiltration. New-onset sinus tachycardia with a prolonged QT interval occurred when calcium substitution was infused at rate of 1.1 mmol/h after 15 min of starting the second RCA-hemofiltration session (estimated net calcium loss was 7.54 mmol/h). When the calcium substitution was increased to usual rate of 5.6 mmol/h, the arrhythmia disappeared after 2 min. Arrhythmia did not recur when the calcium substitution rate was 2.2 mmol/h during the third session (estimated net calcium loss was 6.44 mmol/L). After the third RCA-hemofiltration session, the patient underwent parathyroidectomy and serum calcium returned to normal. Conclusions This case indicated that rapid calcium loss may cause arrhythmia in RCA-hemofiltration, and the rate of net calcium loss should be limited below a threshold value to prevent similar adverse effect during RCA-RRT.
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spelling doaj.art-80eb6f07125344adb6052b8417b6a6072022-12-21T19:04:02ZengBMCBMC Nephrology1471-23692018-06-011911510.1186/s12882-018-0936-zRapid calcium loss may cause arrhythmia in hemofiltration with regional citrate anticoagulation: a case reportBuyun Wu0Jing Wang1Guang Yang2Changying Xing3Huijuan Mao4Department of Nephrology, The First Affiliated Hospital of Nanjing Medical UniversityDepartment of Nephrology, The First Affiliated Hospital of Nanjing Medical UniversityDepartment of Nephrology, The First Affiliated Hospital of Nanjing Medical UniversityDepartment of Nephrology, The First Affiliated Hospital of Nanjing Medical UniversityDepartment of Nephrology, The First Affiliated Hospital of Nanjing Medical UniversityAbstract Background Renal replacement therapy (RRT) with regional citrate anticoagulation (RCA) is an important therapeutic approach for refractory hypercalcemia complicated with renal failure. However, RCA has the potential to induce arrhythmia caused by rapid calcium loss. We report a case of arrhythmia associated with rapid calcium loss during RCA-RRT. Case presentation A 51-year-old man with hypercalcemia, primary hyperparathyroidism, and acute kidney injury was treated by predilutional-RCA-hemofiltration at a rate of 4.3 L/h. The effect of lowering serum calcium was unsatisfactory despite reducing calcium substitution gradually from 5.3 to 2.2 mmol/h in the first 8-h session of RCA-hemofiltration. New-onset sinus tachycardia with a prolonged QT interval occurred when calcium substitution was infused at rate of 1.1 mmol/h after 15 min of starting the second RCA-hemofiltration session (estimated net calcium loss was 7.54 mmol/h). When the calcium substitution was increased to usual rate of 5.6 mmol/h, the arrhythmia disappeared after 2 min. Arrhythmia did not recur when the calcium substitution rate was 2.2 mmol/h during the third session (estimated net calcium loss was 6.44 mmol/L). After the third RCA-hemofiltration session, the patient underwent parathyroidectomy and serum calcium returned to normal. Conclusions This case indicated that rapid calcium loss may cause arrhythmia in RCA-hemofiltration, and the rate of net calcium loss should be limited below a threshold value to prevent similar adverse effect during RCA-RRT.http://link.springer.com/article/10.1186/s12882-018-0936-zRegional citrate anticoagulationHypercalcemiaHypocalcemiaArrhythmiaThreshold value
spellingShingle Buyun Wu
Jing Wang
Guang Yang
Changying Xing
Huijuan Mao
Rapid calcium loss may cause arrhythmia in hemofiltration with regional citrate anticoagulation: a case report
BMC Nephrology
Regional citrate anticoagulation
Hypercalcemia
Hypocalcemia
Arrhythmia
Threshold value
title Rapid calcium loss may cause arrhythmia in hemofiltration with regional citrate anticoagulation: a case report
title_full Rapid calcium loss may cause arrhythmia in hemofiltration with regional citrate anticoagulation: a case report
title_fullStr Rapid calcium loss may cause arrhythmia in hemofiltration with regional citrate anticoagulation: a case report
title_full_unstemmed Rapid calcium loss may cause arrhythmia in hemofiltration with regional citrate anticoagulation: a case report
title_short Rapid calcium loss may cause arrhythmia in hemofiltration with regional citrate anticoagulation: a case report
title_sort rapid calcium loss may cause arrhythmia in hemofiltration with regional citrate anticoagulation a case report
topic Regional citrate anticoagulation
Hypercalcemia
Hypocalcemia
Arrhythmia
Threshold value
url http://link.springer.com/article/10.1186/s12882-018-0936-z
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