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Assisted reproduction and thromboembolic risk in the COVID-19 pandemic #MMPMID32660814
Fabregues F; Penarrubia J
Reprod Biomed Online 2020[Sep]; 41 (3): 361-364 PMID32660814show ga
The COVID-19 pandemic has significantly increased mortality in many countries, with the number of infected cases increasing exponentially worldwide. One of the main determining factors of the poor prognosis in these patients is the development of coagulopathy. Moreover, it is well known that assisted reproductive technology procedures confer a risk of thromboembolic complications. This commentary analyses specific aspects coexisting between the thrombotic risk described during virus infection and that reported in the context of assisted reproduction treatments. Based on known pathophysiological aspects of virus infection and of ovarian stimulation, there are common elements that deserve to be taken into account. In the present context, any risk of hyperstimulation should be avoided. Gonadotrophin-releasing hormone agonist triggering should be mandatory in high-responder patients and/or those with COVID-19 infection. In both cases, the cycle should be segmented. A proposal is made for the use of prophylactic low molecular weight heparin not only in those cases in which oocyte retrieval has been performed, but also in those in which cancellation has been decided. In addition, endometrial preparation for frozen-thawed embryo transfers should use the transdermal route in order to minimize the higher thrombotic risk associated with the oral route.