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Hemorrhagic cystitis: a retrospective single-center survey
Zuzana Hassan1, Mats Remberger, Petter Svenberg
1Center for Allogenic Stem Cell Transplantation, Karolinska University Hospital Huddinge, Stockholm, Sweden. Zuzana.Hassan@ki.se
Insights
Severe hemorrhagic cystitis (HC) is a serious complication after stem cell transplantation (SCT). Identifying risk factors like acute graft-versus-host disease (aGVHD) is crucial for improving patient outcomes and reducing transplant-related mortality.
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.
Abstract:
Severe hemorrhagic cystitis (HC) may be a life-threatening complication in allogeneic stem cell transplantation (SCT). In order to improve the strategies for prophylaxis and treatment, we retrospectively analyzed data on patients who underwent SCT at our center from 1990 through 2005. Patients with HC were identified through our database and their medical charts were reviewed. Grades 2-5 and 3-5 HC developed in 109/834 patients (13.1%) and 27/834 patients (3.2%), respectively. The frequency of HC decreased over the time from 18.0% in 1990-1992 to 9.5% in 2002-2005 (p = 0.005). HC started on a median of 35 (0-166) days post-transplant and persisted for a median of 23 (2-270) days. Transplant-related mortality was 21% in patients without HC, 15% in those with HC of grade 2, 55% in those with grade 3, and 71% in patients with HC of grades 4-5 (p < 0.001). In multivariate analysis, the risk factors for HC were myeloablative conditioning, busulphan, cytomegalovirus infection, hematological malignancy, and acute graft-versus-host disease (aGVHD). With four risk factors, the risk of HC development was 31%. Risk factors for severe HC of grades 3-5 were aGVHD and bacteremia.
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