Use of a combination of diaphragmatic ultrasound and muscle relaxation monitoring in predicting post-extubation adverse respiratory events among elderly patients in an anesthesia intensive care unit.

"Declarations Ethics approval and consent to participateThis study was conducted with approval from the Ethics Committee of the Lu’an People’s Hospital [Approval No: 2022LL (research) 001]. This study was conducted in accordance with the declaration of Helsinki. Written informed consent was obtained from all participants. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study was funded by the Anhui Provincial Key Research and Development Project (Grant Number: 2022e07020045) and New technology and new project of Lu’an Hospital of Anhui Medical University (Grant Number: 2022xjs04). The funding body had no role in the design of the study and collection, analysis, and interpretation of data and in writing the manuscript."