Introduction: Chimeric antigen receptor (CAR) T‐cell therapy is an effective new treatment for hematologic malignan‐ cies. In this study, we aimed to characterize the acute kidney injury (AKI) and electrolyte disorders among adults with refractory and relapsed haematological malignancies treated with CAR‐T therapy and explore clinical outcomes. Methods: A retrospective, observational study was performed. Adult ...