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Bone metabolism abnormalities in children with epilepsy at Red Cross War Memorial Children's Hospital, Cape Town, South Africa

Introduction: Epilepsy is the most common neurological condition worldwide. Literature on the antiepileptic medications and biochemical markers of bone metabolism has revealed inconsistent results. Most of these studies were undertaken in Europe and America where the burden and the associated comorb...

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Main Author: Kija, Edward Nkingwa
Format: Thesis
Language:English
Published: Division of Urology 2018
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access_status_str Open Access
author Kija, Edward Nkingwa
author_browse Kija, Edward Nkingwa
author_facet Kija, Edward Nkingwa
author_sort Kija, Edward Nkingwa
collection Thesis
description Introduction: Epilepsy is the most common neurological condition worldwide. Literature on the antiepileptic medications and biochemical markers of bone metabolism has revealed inconsistent results. Most of these studies were undertaken in Europe and America where the burden and the associated comorbidities are different to the ones in Africa. Methods: A hospital based case control study was undertaken at Red Cross War Memorial Children's Hospital where children were recruited from a dedicated Epilepsy clinic and controls were obtained from a day surgical ward. Blood and urine samples were taken for the assessment of markers of bone metabolism. Results: Seventy-five cases and 75 controls were recruited. The median age for the children with epilepsy was 9 years with a range of 1 to 17 and controls 3 years with a range of 1 to 12. Vitamin D deficiency was present in 11(16.2%) of children with epilepsy compared to 6(8.8%) in the control group. Vitamin D insufficiency was present in 30(44.1%) in children with epilepsy compared to 27(39.7%) in the control group. Children with epilepsy on enzyme inducing AEDs had lower mean Vitamin D levels (24.67±11.4 vs 30.72±7.4, p=0.08), lower mean Vitamin D2 (0.25±0.07 vs 0.4±0.17,p=0.0018),lower mean Vitamin D3 (1.61±1.06 vs 2.58±0.86,p=0.004), lower mean serum phosphate levels (1.39±0.2 vs 1.76±0.7,p=0.000) and a higher mean parathyroid hormone levels (4.47±2.33 vs 2.7±0.97, p=0.03) compared to the control group. Children with Epilepsy on enzyme inhibitors had higher mean Vitamin D2 (0.44±0.37 vs 0.25±0.07,p=0.000004) and mean Vitamin D3 (2.26±0.86 vs 1.61±1.06,p=0.028) compared to children on enzyme inducers. Dietary intake and ancestry did not influence Vitamin D levels between the cases and controls. Conclusion and Recommendations: Vitamin D deficiency is common in children with epilepsy on AEDs. Children on enzyme inducing AEDs should be investigated for vitamin D deficiency and managed accordingly.
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license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository
publishDate 2018
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spelling oai:open.uct.ac.za:11427/27013 Bone metabolism abnormalities in children with epilepsy at Red Cross War Memorial Children's Hospital, Cape Town, South Africa Kija, Edward Nkingwa Paediatric Neurology Introduction: Epilepsy is the most common neurological condition worldwide. Literature on the antiepileptic medications and biochemical markers of bone metabolism has revealed inconsistent results. Most of these studies were undertaken in Europe and America where the burden and the associated comorbidities are different to the ones in Africa. Methods: A hospital based case control study was undertaken at Red Cross War Memorial Children's Hospital where children were recruited from a dedicated Epilepsy clinic and controls were obtained from a day surgical ward. Blood and urine samples were taken for the assessment of markers of bone metabolism. Results: Seventy-five cases and 75 controls were recruited. The median age for the children with epilepsy was 9 years with a range of 1 to 17 and controls 3 years with a range of 1 to 12. Vitamin D deficiency was present in 11(16.2%) of children with epilepsy compared to 6(8.8%) in the control group. Vitamin D insufficiency was present in 30(44.1%) in children with epilepsy compared to 27(39.7%) in the control group. Children with epilepsy on enzyme inducing AEDs had lower mean Vitamin D levels (24.67±11.4 vs 30.72±7.4, p=0.08), lower mean Vitamin D2 (0.25±0.07 vs 0.4±0.17,p=0.0018),lower mean Vitamin D3 (1.61±1.06 vs 2.58±0.86,p=0.004), lower mean serum phosphate levels (1.39±0.2 vs 1.76±0.7,p=0.000) and a higher mean parathyroid hormone levels (4.47±2.33 vs 2.7±0.97, p=0.03) compared to the control group. Children with Epilepsy on enzyme inhibitors had higher mean Vitamin D2 (0.44±0.37 vs 0.25±0.07,p=0.000004) and mean Vitamin D3 (2.26±0.86 vs 1.61±1.06,p=0.028) compared to children on enzyme inducers. Dietary intake and ancestry did not influence Vitamin D levels between the cases and controls. Conclusion and Recommendations: Vitamin D deficiency is common in children with epilepsy on AEDs. Children on enzyme inducing AEDs should be investigated for vitamin D deficiency and managed accordingly. 2018-01-25T14:06:15Z 2018-01-25T14:06:15Z 2017 Master Thesis Masters MPhil http://hdl.handle.net/11427/27013 eng application/pdf Division of Urology Faculty of Health Sciences University of Cape Town
spellingShingle Paediatric Neurology
Kija, Edward Nkingwa
Bone metabolism abnormalities in children with epilepsy at Red Cross War Memorial Children's Hospital, Cape Town, South Africa
thesis_degree_str Master's
title Bone metabolism abnormalities in children with epilepsy at Red Cross War Memorial Children's Hospital, Cape Town, South Africa
title_full Bone metabolism abnormalities in children with epilepsy at Red Cross War Memorial Children's Hospital, Cape Town, South Africa
title_fullStr Bone metabolism abnormalities in children with epilepsy at Red Cross War Memorial Children's Hospital, Cape Town, South Africa
title_full_unstemmed Bone metabolism abnormalities in children with epilepsy at Red Cross War Memorial Children's Hospital, Cape Town, South Africa
title_short Bone metabolism abnormalities in children with epilepsy at Red Cross War Memorial Children's Hospital, Cape Town, South Africa
title_sort bone metabolism abnormalities in children with epilepsy at red cross war memorial children s hospital cape town south africa
topic Paediatric Neurology
url http://hdl.handle.net/11427/27013
work_keys_str_mv AT kijaedwardnkingwa bonemetabolismabnormalitiesinchildrenwithepilepsyatredcrosswarmemorialchildrenshospitalcapetownsouthafrica