Remifentanil improves left ventricular diastolic parameters in patients with impaired diastolic function: a prospective clinical study.

"Declarations Ethics approval and consent to participateFollowing ethics committee approval (Yeditepe University Hospitals Ethical Committee, İstanbul, Turkey; 15.05.2019-no 1018, chairperson Prof Turgay Çelik, MD, and NCT 04117009) and obtaining written informed consent, 30 individuals undergoing surgical procedures under general anesthesia were enrolled. The research was performed in accordance with the Ethical Principles for Medical Research Involving Human Subjects, outlined in the Helsinki Declaration-2013. Financial support and sponsorshipNot applicable. PresentationPreliminary data were not presented previously: none declared. Consent for publicationNot applicable. Competing interestsNot applicable. Competing interests Not applicable."

"Funding Not applicable. Financial support and sponsorship Not applicable."