Hemorrhagic cystitis: a retrospective single-center survey

Area of Science:

• Hematology
• Transplantation Medicine
• Oncology

Background:

• Severe hemorrhagic cystitis (HC) is a potentially fatal complication following allogeneic stem cell transplantation (SCT).
• Effective prophylaxis and treatment strategies are essential for improving patient survival rates.

Purpose of the Study:

• To retrospectively analyze patient data to identify risk factors for HC post-SCT.
• To evaluate the incidence and outcomes of HC in SCT patients over a 16-year period.

Main Methods:

• Retrospective analysis of SCT patient data from 1990-2005.
• Identification of HC cases through a dedicated database and review of medical charts.
• Multivariate analysis to determine risk factors for HC development and severity.

Main Results:

• HC (grades 2-5) occurred in 13.1% of patients, with a decreasing frequency over time.
• Transplant-related mortality significantly increased with HC severity (71% for grades 4-5).
• Key risk factors for HC included myeloablative conditioning, busulphan, cytomegalovirus infection, hematological malignancy, and acute graft-versus-host disease (aGVHD).

Conclusions:

• HC is a significant risk factor for mortality after SCT.
• aGVHD and bacteremia are identified as risk factors for severe HC (grades 3-5).
• Understanding these risk factors can guide improved strategies for HC prevention and management in SCT recipients.