Blood Transfusion/*mortality Combined Modality Therapy Cystectomy/*mortality Humans *Perioperative Care Prognosis Survival Rate Urinary Bladder Neoplasms/pathology/*therapy Bladder cancer Blood transfusion Cystectomy Meta-analysis Oncology Systematic review

Antineoplastic Combined Chemotherapy Protocols/*therapeutic use Carcinoma Transitional Cell/*drug therapy/pathology Clinical Trials Phase II as Topic Clinical Trials Phase III as Topic Humans Neoplasm Metastasis Neoplasm Staging Practice Guidelines as Topic Randomized Controlled Trials as Topic Urinary Bladder Neoplasms/*drug therapy/pathology Immune checkpoint inhibitors Platinum-based chemotherapy Survival outcomes Treatment guidelines Urothelial carcinoma funded this work. MK PK and SD are employees of Evidera.