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Lookup NU author(s): Dr Fiona Jenkinson
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© 2024 Elsevier B.V.Background and aims: Prognosis and management differ between familial chylomicronaemia syndrome (FCS), a rare autosomal recessive disorder, and multifactorial chylomicronaemia syndrome (MCS) or severe mixed hyperlipidaemia. A clinical scoring tool to differentiate these conditions has been devised but not been validated in other populations. The objective of this study was to validate this score in the UK population and identify any additional factors that might improve it. Methods: A retrospective validation study was conducted using data from 151 patients comprising 75 FCS and 76 MCS patients. All participants had undergone genetic testing for genes implicated in FCS. Validation was performed by standard methods. Additional variables were identified from clinical data by logistic regression analysis. Results: At the recommended FCS score threshold ≥10 points, the sensitivity and specificity of the score in the UK population were 96% and 75%, respectively. The receiver operating characteristic (ROC) curve analysis yielded an area under the curve (AUC) of 0.88 (95% CI 0.83–0.94, p < 0.001). This study identified non-European (predominantly South Asian) ethnicity, parental consanguinity, body mass index (BMI) < 25 kg/m2, and recurrent pancreatitis as additional positive predictors, while BMI >30 kg/m2 was found to be a negative predictor for FCS. However, inclusion of additional FCS predictors had no significant impact on performance of standard FCS score. Conclusions: Our study validates the FCS score in the UK population to distinguish FCS from MCS. While additional FCS predictors were identified, they did not improve further the score diagnostic performance.
Author(s): Bashir B, Kwok S, Wierzbicki AS, Jones A, Dawson C, Downie P, Jenkinson F, Delaney H, Mansfield M, Datta D, Teoh Y, Hamilton P, Forrester N, O'Sullivan D, Ferdousi M, Durrington PN, AbdelRazik A, Gallo A, Moulin P, Soran H
Publication type: Article
Publication status: Published
Journal: Atherosclerosis
Year: 2024
Volume: 391
Print publication date: 01/04/2024
Online publication date: 09/02/2024
Acceptance date: 02/02/2024
ISSN (print): 0021-9150
ISSN (electronic): 1879-1484
Publisher: Elsevier Ireland Ltd
URL: https://doi.org/10.1016/j.atherosclerosis.2024.117476
DOI: 10.1016/j.atherosclerosis.2024.117476
PubMed id: 38447437
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