Asian Journal of Transfusion Science
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Year : 2020  |  Volume : 14  |  Issue : 1  |  Page : 19-22

Prophylactic administration of oral calcium carbonate during plateletpheresis: A bicentric prospective study

1 Department of Transfusion Medicine, Jaypee Hospital, Noida, Uttar Pradesh, India
2 Department of Transfusion Medicine, Medanta-The Medicity, Gurgaon, Haryana, India
3 Department of Transfusion Medicine, Manipal Hospital, Jaipur, Rajasthan, India

Correspondence Address:
Dr. Prashant Kumar Pandey
Department of Transfusion Medicine, Jaypee Hospital, Sector-128, Noida - 201 304, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajts.AJTS_114_17

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Background: Administration of anticoagulant citrate and dextrose (ACD-A) chelates ionized calcium in blood and causes hypocalcemia in plateletpheresis donors. The aim of the study was to observe the effects of oral calcium (Ca) supplementation during plateletpheresis on various parameters related to calcium metabolism. Materials and Methods: This study was performed between January 2014 and December 2014 on 200 plateletpheresis donors.They were divided into two groups. In group A donors (n=100), no prophylactic oral calcium supplementation was given. In group B (n=100) donors, 2000 mg of calcium was given one hour before the start of the procedure, 500 mg was given at the start of the procedure and 500 mg calcium was given just before the end of procedure. Biochemical parameters like serum total calcium (T Ca), serum total magnesium (T Mg) and ionized calcium level (iCa) were measured before and after the procedure. Relative risk of citrate toxicity was measured between the two groups. Results: There was a significant fall in total calcium (pre 9.02 mg/dl, post 8.23 mg/dl,), ionized calcium level (pre 1.14 mmol/L, post 0.91 mmol/L) and total magnesium (pre 1.92 mg/dl, post 1.79 mg/dl) amongst the donors who did not receive prophylactic calcium supplementation. Despite calcium intake, in prophylactic calcium intake group, we did observe a significant drop in total magnesium (pre 2.04 mg/dl, post 1.94 mg/dl) and ionized calcium level (pre 1.25 mmol/L, post 1.12 mmol/L, p<0.01). We did observe a drop in total calcium level, however, this observation was not statistically significant. The risk (RR=5.44) of citrate toxicity was higher among group A donors. Conclusion: Prophylactic oral calcium carbonate supplementation would help in to reduce the risk of citrate toxicity. Therefore, we suggest for prophylactic oral administration of 3000 mg elemental calcium carbonate in three divided doses to make PP procedures uneventful.

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2006 - Asian Journal of Transfusion Science | Published by Wolters Kluwer - Medknow
Online since 10th November, 2006