Timing of Renal Replacement Therapy Initiation in Tumor Lysis Syndrome

This is a retrospective study (analyzing past medical records) looking at the best timing for starting dialysis (kidney replacement therapy) in patients who developed tumor lysis syndrome — a dangerous condition where chemotherapy breaks down cancer cells so quickly that the kidneys and blood chemistry are overwhelmed. The study covers ICU patients treated between 2013 and 2023. **You may be eligible if...** - You were a patient in an ICU between January 2013 and December 2023 (data reviewed retrospectively) - You have a blood cancer or solid tumor that required chemotherapy - You were diagnosed with tumor lysis syndrome during that admission **You may NOT be eligible if...** - You or your family objected to research use of your medical data - You did not develop tumor lysis syndrome during your ICU stay Talk to your doctor to see if this trial is right for you.