Ethical Considerations
The study was conducted with patients admitted to the Cardiovascular Center of Kitasato University Hospital after the study protocol was approved by the Ethics Committee of Kitasato University Hospital (C19-298) and published on the University Hospital Medical Information Network (UMIN-CTR, unique identifier: UMIN000043312). This study was conducted entirely in adherence to the Declaration of Helsinki and Ethical Guidelines for Medical and Health Research Involving Human Subjects, promoted by the Ministry of Health, Labor, and Welfare in Japan. All patients included in this study obtained written informed consent about this study information. The content of the informed consent included that the data would be deidentified before analysis, that no honorarium would be given, and that the free will to drop out of the study would be respected.