Low‐Dose Cyclophosphamide Associated with Hemorrhagic Cystitis in a Breast Cancer Patient (original) (raw)
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Journal of Oncology Pharmacy Practice, 2020
Background Cyclophosphamide is an alkylating agent associated with significant toxicities, most importantly hemorrhagic cystitis. Many approaches including mesna use were established to reduce this toxicity. However, data on mesna efficacy are conflicting. Objective To investigate the incidence of hemorrhagic cystitis in patients receiving cyclophosphamide therapy with or without mesna. Methods A retrospective chart review was done on all adult patients receiving cyclophosphamide therapy with or without mesna at the King Saud University Medical City. The incidence of hemorrhagic cystitis was recorded. Patients receiving mesna were compared with those not receiving mesna. Data were reported as numbers and percentages, and appropriate statistical tests of association were used. This step was followed by a comprehensive literature review using appropriate keywords in PubMed from the inception of the database until August 2019. All studies of interest were reported. Results A total of 7...
Prevention and treatment of cyclophosphamide and ifosfamide-induced hemorrhagic cystitis
Journal of Molecular Pathophysiology, 2012
Free radicals and non-radical reactive molecules as well as several cytokines (e.g. tumor necrosis factor-α and interleukin family) and transcription factors (e.g. nuclear factor-κB and activator protein-1) are now known to take part in the pathogenesis of cyclophosphamide (CP) and ifosfamide (IF) induced hemorrhagic cystitis (HC). When these molecular factors are taken into account pathogenesis of bladder toxicity can be summarized in three steps: (1) acrolein rapidly enters into the uroepithelial cells, (2) activates intracellular ROS and NO production (directly or through transcription factors) leading to peroxynitrite production, and (3) finally the elevated peroxynitrite level basically damages lipids (lipid peroxidation), proteins (protein oxidation) and DNA (strand breaks) leading to PARP activation, a DNA repair enzyme. DNA damage causes PARP overactivation, resulting in the depletion of oxidized nicotinamide adenine dinucleotide (NAD+) and adenosine triphosphate (ATP), and consequently in necrotic cell death. There is no doubt that for an effective prevention against CP-and IF-cystitis all pathophysiological mechanisms must be taken into consideration. Experimental works reporting beneficial effects of antioxidants, iNOS inhibitors, cytokine blockers or hyperbaric oxygen (HBO) treatment, against CP-and/or IF-induced HC exist in literature. In this article, we discussed the possible mechanisms and effectiveness of agents used in addition to mesna to prevent CP-and IF-cystitis. In conclusion, antioxidants, iNOS inhibitors, peroxynitrite scavengers, anti-inflammatory agents, as well as HBO therapy may be added to mesna administration in clinical trials in order to obtain the best protocol to improve quality of patients comfort
Journal of Urology, 1997
The aim of this research was to compare the protective effects of mesna, hyperbaric oxygenation (HBO), and their combination in cyclophosphamide-induced hemorrhagic cystitis in guinea pigs. Following one dose of i.p. 21.5 mg./kg. mesna administration 20 minutes before i.p. 68.1 mg./kg. cyclophosphamide, 3 additional doses of mesna were given every three hours. A total of 8 HBO exposures, 5 of which were applied prophylactically before cyclophosphamide, were performed at 2.8 ATA for 90 minutes 2 times a day. Although mesna or HBO provided significant protection for cyclophosphamide-cystitis in animal bladders, there was also significant damage compared with controls. The combination of mesna and HBO, which act through independent mechanisms, resulted in complete protection, since mean histological scores and hematuria levels in this group were not different from controls (p >0.05). Therefore, this combination may be a useful tool in the prophylaxis and treatment of cyclophosphamide-induced hemorrhagic cystitis.
Multiple late complications of therapy with cyclophosphamide, including ovarian destruction
The American Journal of Medicine, 1971
The sudden, late appearance of multiple complications and the autopsy demonstration of a newly recognized side effect, ovarian destruction, are described in a young girl treated for a prolonged period with cyclophosphamide. She suffered the nearly simultaneous appearance of Pneumocystis carinii pneumonia and severe urinary tract hemorrhage in the twenty-ninth month of therapy. At autopsy, the ovaries were found to be totally lacking in ova or follicles, although the child was known to have had a normal XX chromosomal constitution. We believe that the ovarian disease observed in this case is the lesion associated with the amenorrhea which has recently been reported to occur during prolonged cyclophosphamide therapy in adults.
Indian Journal of Cancer, 2006
BACKGROUND: Hemorrhagic cystitis (HC) is a dose limiting side effect of cyclophosphamide (CYP). AIM: In this study, we aimed to investigate the role of amifostine in the protection of CYP-induced HC and compare its efficacy with mesna. SETTING AND DESIGN: This animal study was conducted in the Experimental Animals Breeding and Research Center of the Medical Faculty of Uludag University. MATERIALS AND METHODS: Male Wistar rats (150-200 g; 10 rats per group) were randomly assigned to four groups. Group I (control group) received no drugs, group II received CYP (200 mg/kg, i.p.) alone, group III received amifostine (200 mg/kg, i.p.) and CYP, and group IV received CYP and mesna (40 mg/kg, i.p.) immediately and 4 and 8 h after administration of CYP. Bladders of animals were assessed macroscopically and histologically 24 h later. Gross assessment for presence of edema and hemorrhage and histological evaluation of damage to the bladder were scored according to Gray's criteria. STATISTICAL ANALYSIS USED: For macroscopic and microscopic data, we used statistical evaluation by Kruskal-Wallis nonparametric analysis of variance followed by the Mann-Whitney U-test. RESULTS: All the animals in group II had evidence of HC. Significant histological damage and macroscopic changes were present in this group compared to control group (P<0.001). The median scores for bladder damage in group III and IV were significantly lower compared to group II (P<0.001). When the median scores for bladder damage of group I, III, and IV were compared, there was no significant difference among these groups. CONCLUSION: This study demonstrated the efficacy of amifostine in prevention of cyclophosphamide-induced hemorrhagic cystitis.
Bone Marrow Transplantation, 1999
The role of amifostine in the prevention of cyclophosphamide-induced hemorrhagic cystitis (HC) was evaluated in the rat model. Urinary bladders from control rats that received no drugs (group I) were compared with those from rats receiving cyclophosphamide alone at a dose of 150 mg/kg (group II), and two other groups receiving amifostine at 100 mg/kg (group III) and 200 mg/kg (group IV), 15 min prior to cyclophosphamide. Bladders were assessed macroscopically and histologically at 24 h and after 7 days. All the animals that received cyclophosphamide alone developed severe HC. On the basis of the scores of macroscopic and histologic changes, animals that received amifostine showed excellent uroprotection. Only 2/6 rats in group III and 1/6 rats in group IV developed mild HC at 24 h. None of the rats in either of these groups showed any evidence of HC at 7 days. It is concluded that amifostine protects the urothelium against cyclophosphamide-induced HC.