Received: 17 November 2021
Accepted: 21 March 2022
First Online: 12 April 2022
: This study was approved by the Institutional Review Board (Comité d’Ethique de la Recherche en Anesthésie-Réanimation – CERAR, ID-IRB 2019–173). According to French law and due to the non-interventional design of the study, parturient women’s consent was waived by the ethical committee. Thus, oral and written information was given to women, who could then decline inclusion in the study.
: Not applicable.
: M. Garnier declares that he is an associate editor of BMC Anesthesiology. The other authors declare that they have no competing interests.