Vol 7, No 2 (2022)
Research paper
Published online: 2022-06-24

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Systematic review and meta-analysis of serum amyloid a prognostic value in patients with COVID-19

Bartosz Fialek1, Olha Yanvarova2, Michal Pruc3, Aleksandra Gasecka4, Alicja Skrobucha4, Maria Boszko4, Czeslaw Ducki5, Maciej Cyran6, Lukasz Szarpak7
Disaster Emerg Med J 2022;7(2):107-113.


INTRODUCTION: This study was designed to assess the levels of human serum amyloid A (SAA) among COVID-19 patients.
MATERIAL AND METHODS: A systematic review and meta-analysis were conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis. A comprehensive literature search was performed (PubMed, Web of Science, Scopus, and Cochrane network), and studies comparing SSA levels in: (A) with non-severe vs severe COVID-19; (B) severe vs critical COVID-19 condition; (C) survived vs died due to COVID-19 in-hospital treatment period — were included. Random-effects meta-analyses were performed to obtain pooled estimates.
RESULTS: Thirty studies met the criteria and were included in the meta-analysis. Pooled analysis showed that SAA levels were statistically significantly lover in non-severe group 58.7 ± 53.9 mg/L compared to 154.5 ± 169.6 mg/L for patients with severe condition (MD = –120.29; 95% CI: –135.35 to –105.22; p < 0.001). SAA levels among patients with critical condition were 89.5 ± 90.4 mg/L compared to 195.3 ± 206.2 mg/L (MD = –56.66; 95% CI: –101.81 to –11.51; p = 0.01). SAA levels in patient who survived were 108.7 ± 157.3 mg/L, and 206.8 ± 58.8 mg/L for patients who not survived (MD = –85.04; 95% CI: –145.78 to –24.29; p = 0.006).
CONCLUSIONS: In conclusion, this updated meta-analysis suggests that SAA concentrations are positively correlated with the severity of the COVID-19. Therefore, SAA can be considered a biomarker for predicting the severity and prognosis of COVID-19. Measurement of this parameter might assist clinicians in monitoring and evaluating the severity and prognosis of COVID-19.

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