Failure-to-rescue is a research area in healthcare that focuses on identifying and analyzing cases where patients experience complications or adverse events during their hospital stay, but medical staff fail to recognize the signs of deterioration or provide the necessary interventions in a timely manner, leading to poor patient outcomes. This research area aims to understand the factors that contribute to these failures in healthcare systems, such as communication breakdowns, lack of resources, or inadequate training, in order to develop strategies for improving patient safety and reducing preventable deaths. Failure-to-rescue research typically involves studying trends and patterns in patient outcomes, analyzing the effectiveness of response protocols, and implementing quality improvement initiatives to enhance the overall quality of care.