Article History
Received: 25 June 2020
Accepted: 21 October 2020
First Online: 6 November 2020
Compliance with ethical standards
:
: Emmanuel Boselli has received honoraria and travel grants from MDoloris Medical Systems. The other authors have no conflict of interest to declare.
: This study was approved by the Ethics Committee of the French Society of Anesthesia and Intensive Care, CERAR (<i>Comité d’Éthique pour la Recherche en Anesthésie</i>-<i>Réanimation</i>), Paris, France (Approval No. IRB 00010254-2020-076).
: The Ethics Committee waived the requirement for written informed consent because of the retrospective nature of this study.
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