This National Science Foundation (NSF) Technology, Innovation, and Partnerships (CFDA 47.084) Project Grant award for $275,000 aims to develop an automated method for continuous and accurate post-operative cardiac rhythm diagnosis. The project, led by Atrility Medical, Inc., a small business in Madison, WI, seeks to address the limitations of current surface-based electrocardiogram (ECG) monitoring for detecting cardiac arrhythmias after surgery. The proposed solution will utilize advanced signal processing to analyze high-quality atrial electrograms and provide real-time, continuous rhythm diagnosis to improve post-operative cardiac care. This innovation has the potential to substantially reduce healthcare costs and improve patient outcomes associated with missed or delayed arrhythmia detection following cardiac surgeries. The award runs from September 2024 through August 2025 and includes plans for subawards as part of the technology development and validation process.