BackgroundPostoperative delirium (POD) is a common complication following transcatheter aortic valve replacement (TAVR) and is associated with adverse outcomes in older patients. Frailty, a multidimensional geriatric syndrome, has been increasingly recognized as a potential risk factor for POD. However, existing evidence remains inconsistent. This meta-analysis aimed to evaluate the association between frailty and POD after TAVR.MethodsA systematic search of PubMed, Embase, and Web of Science wa