Impact of Remimazolam on Prognosis After Bladder Cancer Surgery

Inclusion Criteria: 1. Age ≥50 years and \<90 years; 2. Preoperative diagnosis is non-muscle-invasive bladder cancer(Ta-T1); 3. Scheduled to undergo transurethral resection of bladder tumor; 4. Agree to participate, and provide written informed consent. Exclusion Criteria: 1. Refuse to participate; 2. Emergent surgery; 3. Combined with other malignant tumors; 4. Use of benzodiazepines for 1 week within the last month before surgery; 5. Preoperative history of schizophrenia, epilepsy, parkinsonism or myasthenia gravis; 6. Inability to communicate in the preoperative period due to coma, profound dementia, language barrier, or end-stage disease; 7. Critical illness (preoperative American Society of Anesthesiologists physical status classification ≥IV), severe hepatic dysfunction (Child-Pugh class C), or severe renal dysfunction (undergoing dialysis before surgery); 8. The purpose of surgery is to make a diagnosis or preoperative judgement is that tumor cannot be completely removed.