Correlation of the middle cerebral artery blood flow velocity with age and Haemoglobin values of children with Sickle cell anaemia in Uyo

Autor: Ahunanya CN, Oloyede IP, Uduma FU, Eduwem DU
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Ibom Medical Journal, Vol 17, Iss 3 (2024)
Druh dokumentu: article
ISSN: 1597-7188
2735-9964
DOI: 10.61386/imj.v17i3.504
Popis: Introduction: Sickle cell anaemia (SCA) occurs in 1-3% of the Nigerian population. It is the most common cause of stroke in children. The time-averaged mean of the maximum velocity (TAMMV) in the Middle cerebral arteries (MCA) measured by transcranial Doppler (TCD) ultrasonography can estimate the risk of stroke in SCA children. Some clinical factors associated with abnormal TAMMV flows and first stroke (infarctive) in children with SCA are age and low haemoglobin. Aim: To determine the association between TAMMV of the middle cerebral artery (MCA) in patients with SCA with their age and haemoglobin values and compare it with age and sex-matched children with Haemoglobin AA (HbAA) genotype. Method: This was a comparative cross-sectional descriptive study conducted among 40 confirmed HbSS patients in steady state and a comparison group of 40 healthy HbAA age and sex-matched children. Demographic and medical data were obtained using a structured proforma. Haemoglobin concentration was estimated for all participants. TCD ultrasound was performed for all participants using the Stroke Prevention Trial in Sickle Cell Anaemia (STOP) protocol. Data was analysed in Statistical Package for Social Science version 22.0 (SPSS Inc., IL, USA). Results: The mean and standard deviation (Mean±SD) age of HbSS patients was 9.1 ± 4.4 years. The majority (42.5%) of the HbSS children were in the 10-14 years age group. The HbSS patients had a consistently lower mean Hb than the HBAA participants across all age groups and this was statistically significant. (p=
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