key: cord-0722933-2razjkit authors: Giorgione, Veronica; Thilaganathan, Basky title: SARS-COV-2 related myocardial injury might explain the predisposition to preeclampsia with maternal SARS-COV-2 infection date: 2021-10-05 journal: Am J Obstet Gynecol DOI: 10.1016/j.ajog.2021.09.043 sha: a02225d2447d396601b379292ef73ae07fc2e3f9 doc_id: 722933 cord_uid: 2razjkit nan This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. analysis showed that SARS-CoV-2 infection during pregnancy increases the risk of 26 preeclampsia by 62% and that this association remained significant even after adjusting for 27 confounding risk factors, such as maternal age, body mass index, pre-existing comorbidities 28 and ethnicity. Their meta-analysis effectively demonstrates that the latter pre-existing 29 maternal cardiovascular risk factors cannot entirely explain the nature of the relationship 30 between SARS-CoV-2 infection and preeclampsia. Furthermore, the authors demonstrated 31 a bi-directional "dose-response" effect with SARS-CoV-2 infected pregnancies having a 2-32 fold higher risk of severe preeclampsia and secondly, that the association between infection 33 and preeclampsia is stronger in symptomatic than in asymptomatic cases with COVID-19. 34 Put together, these results suggest that maternal COVID-infection predispose to and trigger 35 the development of preeclampsia. Although the mechanism underlying COVID-19-related 36 multi-organ manifestations are not completely understood, cardiovascular dysfunction is 37 typical, and we believe that the possibility of an association between the latter finding and 38 preeclampsia should be explored further. 39 Maternal cardiovascular dysfunction predisposes to preeclampsia, predominates at 40 presentation of the disorder and persists as a cardiovascular legacy for decades following 41 birth. 2 It is entirely plausible that the complex relationship between COVID-19 infection and 42 acute, severe cardiovascular dysfunction that has been described outside pregnancy may 43 also occur during SARS-CoV-2 infection in pregnancy. 3 Indeed, cardiovascular risk factors, 44 such as hypertension, diabetes mellitus and obesity, are also pre-disposing factors for 45 COVID-19 infection. And COVID-19 infection itself is known to cause acute myocardial infection, myocardial injury and subclinical cardiovascular dysfunction leading to acquired 58 utero-placental malperfusion and ischemia may lead to an angiogenic imbalance and the 59 subsequent development of preeclampsia (Figure 1 ). 2 Further studies on the assessment of 60 maternal cardiovascular system by non-invasive imaging techniques and cardiac 61 biomarkers in pregnancies complicated by SARS-CoV-2 infection could be beneficial to 62 improve, first of all, the prenatal and postnatal care of these women considering the worse 63 prognosis related to the myocardial injury and, also, to prove this hypothesis. SARS-COV-2 infection during pregnancy and risk of 70 preeclampsia: a systematic review and meta-analysis The placenta and preeclampsia: 72 villain or victim? COVID-19 and cardiovascular 74 disease: from basic mechanisms to clinical perspectives