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Article History

Received: 3 April 2021

Accepted: 21 May 2021

First Online: 3 June 2021

Declarations

: Dräger company had no role in the conception and design of the study and in the enrolment of the patients. Drager supported the study by collaboration on the development of the software for perfusion data analysis and by assistance for explanation of technical aspects. Dräger had no access to demographic and clinical patient data. Dräger had no role in the decision to publish the results. However, all authors collaborated to drafting the manuscript, reviewed it for important intellectual content and agreed on the final version.

: The study was approved by the Ethical Committee of the Policlinico Hospital (reference number 513_2019) and informed consent was obtained according to local regulations.

: Not applicable.

: Dr. Kircher reports grants from Drager, outside the submitted work. Dr. Pesenti reports personal fees from Maquet, Novalung/Xenios, Baxter, Boehringer Ingelheim, outside the submitted work. Dr Mauri received personal fees from Drager, Fisher and Paykel, BBraun and Mindray, outside the submitted work. Dr Stender is an employee at Drager. Dr. Grasselli reports personal fees from Draeger Medical, Getinge, Fisher & Paykel, Biotest, Thermofisher, outside the submitted work. All other authors have nothing to disclose.