Funding for this research was provided by:
1·3·5 project for disciplines of excellence–Clinical Research Incubation Project (2018HXFH052)
Received: 15 March 2019
Accepted: 19 August 2019
First Online: 1 November 2019
Ethics approval and consent to participate
: The study has been approved by The Ethical Committee of the West China Hospital of Sichuan University (2018 approval No. 8) and informed consent will be obtained from all study patients before participating. Our trial was registered at ExternalRef removed (ChiCTR1800014901). We will obtain informed consent in written form from all patients who meet all the inclusion criteria and none of the exclusion criteria before arrival in the operating room.The results of the PROVIO trial will be published in peer-reviewed journals focused on perioperative medicine and presented at national and international conferences.
: Not applicable.
: The authors declare that they have no competing interests.