tetano
Editor, Senior Moderator
Int J Hematol Oncol Stem Cell Res
. 2024 Jul 1;18(3):297-305.
doi: 10.18502/ijhoscr.v18i3.16111. Aplastic Anemia Following COVID-19 Vaccination: A Systematic Review of Case Reports and Case Series
Nelson Luis Cahuapaza-Gutierrez[SUP] 1 2 [/SUP], Tsuriel Sofía Campos-Escalante[SUP] 1 [/SUP]
Affiliations
Background: Aplastic anemia (AA) is the prototypical bone marrow failure syndrome due to the destruction of hematopoietic stem cells by cytotoxic T cells. According to case reports, vaccines could lead to the development of AA. We conducted the present systematic review to evaluate cases of AA following vaccination against coronavirus disease (COVID-19). Materials and Methods: We searched the following databases: PubMed, Scopus, and EMBASE in English, Portuguese, and Spanish languages until April 24, 2023. Published reports and case series on AA following vaccination against COVID-19 were included. The Joanna Brigs Institute (JBI) was used to assess study quality and risk of bias. Results: Six studies were selected from 102 research studies, and data were extracted according to the inclusion criteria. All case reports and case series reported the occurrence of AA following COVID-19 vaccination. AA events were mainly observed in vaccines with messenger ribonucleic acid technology (Moderna; Pfizer-BioNTech). AA was diagnosed by bone marrow biopsy, and severity was determined by Camitta criteria. Conclusion: All cases of AA were properly diagnosed. The sample size was small; therefore, further investigations are required to demonstrate and elucidate the complete pathophysiological mechanisms of AA development after receiving COVID-19 vaccination.
Keywords: Anemia; Aplastic; Aplastic anemia; COVID-19 Vaccines; SARS-CoV-2 Vaccines.
. 2024 Jul 1;18(3):297-305.
doi: 10.18502/ijhoscr.v18i3.16111. Aplastic Anemia Following COVID-19 Vaccination: A Systematic Review of Case Reports and Case Series
Nelson Luis Cahuapaza-Gutierrez[SUP] 1 2 [/SUP], Tsuriel Sofía Campos-Escalante[SUP] 1 [/SUP]
Affiliations
- PMID: 39257704
- PMCID: PMC11381666
- DOI: 10.18502/ijhoscr.v18i3.16111
Background: Aplastic anemia (AA) is the prototypical bone marrow failure syndrome due to the destruction of hematopoietic stem cells by cytotoxic T cells. According to case reports, vaccines could lead to the development of AA. We conducted the present systematic review to evaluate cases of AA following vaccination against coronavirus disease (COVID-19). Materials and Methods: We searched the following databases: PubMed, Scopus, and EMBASE in English, Portuguese, and Spanish languages until April 24, 2023. Published reports and case series on AA following vaccination against COVID-19 were included. The Joanna Brigs Institute (JBI) was used to assess study quality and risk of bias. Results: Six studies were selected from 102 research studies, and data were extracted according to the inclusion criteria. All case reports and case series reported the occurrence of AA following COVID-19 vaccination. AA events were mainly observed in vaccines with messenger ribonucleic acid technology (Moderna; Pfizer-BioNTech). AA was diagnosed by bone marrow biopsy, and severity was determined by Camitta criteria. Conclusion: All cases of AA were properly diagnosed. The sample size was small; therefore, further investigations are required to demonstrate and elucidate the complete pathophysiological mechanisms of AA development after receiving COVID-19 vaccination.
Keywords: Anemia; Aplastic; Aplastic anemia; COVID-19 Vaccines; SARS-CoV-2 Vaccines.