• radiation cystitis;
  • chemical cystitis;
  • haemorrhagic cystitis;
  • sodium hyaluronate;
  • hyperbaric oxygen


  1. Top of page
  2. Abstract
  3. Introduction
  4. Methods
  5. Results
  6. Prevention and Treatment of HC
  7. Discussion
  8. Acknowledgements
  9. Conflict of Interests
  10. Funding
  11. References
  • To review the published data on predisposing risk factors for cancer treatment-induced haemorrhagic cystitis (HC) and the evidence for the different preventive and therapeutic measures that have been used in order to help clinicians optimally define and manage this potentially serious condition.
  • Despite recognition that HC can be a significant complication of cancer treatment, there is currently a lack of UK-led guidelines available on how it should optimally be defined and managed.
  • A systematic literature review was undertaken to evaluate the evidence for preventative measures and treatment options in the management of cancer treatment-induced HC.
  • There is a wide range of reported incidence due to several factors including variability in study design and quality, the type of causal agent, the grading of bleeding, and discrepancies in definition criteria.
  • The most frequently reported causal factors are radiotherapy to the pelvic area, where HC has been reported in up to 20% of patients, and treatment with cyclophosphamide and bacillus Calmette-Guérin, where the incidence has been reported as up to 30%.
  • Mesna (2-mercaptoethane sodium sulphonate), hyperhydration and bladder irrigation have been the most frequently used prophylactic measures to prevent treatment-related cystitis, but are not always effective.
  • Cranberry juice is widely cited as a preventative measure and sodium pentosanpolysulphate as a treatment, although the evidence for both is very limited.
  • The best evidence exists for intravesical hyaluronic acid as an effective preventative and active treatment, and for hyperbaric oxygen as an equally effective treatment option.
  • The lack of robust data and variability in treatment strategies used highlights the need for further research, as well as best practice guidance and consensus on the management of HC.


bone marrow transplant




hyperbaric oxygen


haemorrhagic cystitis


haematopoietic stem cell transplant


Late Effects of Normal Tissue (Subjective, Objective, and Management elements)


2-mercaptoethane sodium sulphonate


radiation therapy/radiotherapy


Radiation Therapy Oncology Group


visual analogue scale


  1. Top of page
  2. Abstract
  3. Introduction
  4. Methods
  5. Results
  6. Prevention and Treatment of HC
  7. Discussion
  8. Acknowledgements
  9. Conflict of Interests
  10. Funding
  11. References

Haemorrhagic cystitis (HC) can be either acute or chronic, and be caused by chemotherapeutic drugs, radiation therapy (RT), or exposure to chemicals, e.g. dyes or insecticides [1]. In transplantation settings, HC is typically associated with haematopoietic stem cell transplant (HSCT), but can also occur, albeit rarely, in solid organ recipients [2]. It is thought that a defect in the glycosaminoglycan (GAG) layer, which coats the uroepithelium and provides the initial barrier for physiological protection, may be the first step in its development [3]. Once injured or defective, the GAG layer loses its barrier properties, becomes permeable, and allows the inflammatory and hypersensitisation cycle to thrive [3].

With a tendency towards more aggressive treatment of cancer, including the use of HSCT, chemical- and RT-induced HC can be considered an increasingly important clinical issue, not least because it is a challenging condition to treat. However, few epidemiological studies have been undertaken and therefore, the exact prevalence is unknown. Treatment can be problematic, especially in elderly patients who may be frail and have comorbidities [4], and because the condition often responds inadequately to the usual symptomatic therapies. In severe cases, HC is associated with significant morbidity, prolonged hospitalisation and occasional mortality, and may require more aggressive measures, e.g. supravesical urinary diversion, vesical artery selective embolization, and cystectomy [5]. Furthermore, as the global burden of cancer is forecast to rise, primarily due to ageing and growth of the world's population [6], it is likely that the incidence of HC will rise too because of the increasing use of RT and chemotherapy. However, there is currently a lack of consensus about the best treatment for patients with chemical- and RT-induced HC, as well as a lack of UK-led guidelines available on how it should optimally be defined and managed.

The aim of the present article is to review the predisposing risk factors for chemical- and RT-induced HC and the evidence for the different therapeutic and preventive measures that have been used to help clinicians better manage this potentially disabling condition.


  1. Top of page
  2. Abstract
  3. Introduction
  4. Methods
  5. Results
  6. Prevention and Treatment of HC
  7. Discussion
  8. Acknowledgements
  9. Conflict of Interests
  10. Funding
  11. References

A comprehensive literature search was undertaken in PubMed to retrieve studies and case reports, published in English, relating to the treatment of chemical- and RT-induced HC from 1980 to September 2012. The search was conducted using a comprehensive search strategy, including the terms ‘haemorrhagic cystitis’, ‘chemical cystitis’, ‘radiation cystitis’ in combination with ‘risk factors’, ‘chemotherapeutic drugs’, ‘hyaluronic acid’, ‘sodium hyaluronate’, ‘hyperbaric oxygen’, ‘mesna’, ‘hyperhydration’, ‘bladder irrigation’, ‘pentosanpolysulphate’, ‘oestrogen’, ‘recombinant factor VII’, ‘formalin’, and ‘prostaglandin’. The search results were supplemented by review of the bibliographies of key articles for additional studies, inclusion of relevant abstracts presented at key meetings, as well as expert input, to help ensure the capture of all pertinent data.


  1. Top of page
  2. Abstract
  3. Introduction
  4. Methods
  5. Results
  6. Prevention and Treatment of HC
  7. Discussion
  8. Acknowledgements
  9. Conflict of Interests
  10. Funding
  11. References

Incidence and Reported Predisposing Risk Factors

HC has multiple potential causes, including chemical toxins and radiation. As well as variability in the propensity of the causative factor to induce HC, differences in definition criteria are in part responsible for the wide range of reported incidences [7], with some degree of HC affecting up to 100% of patients in some studies. The available scoring systems for the severity of toxicity also use variable criteria, further complicating the comparative assessment of agents and studies in which they are used.

HC has a spectrum of manifestations that range from non-visible (or microscopic) haematuria to gross (visible) haematuria with clots, and can be graded as mild, moderate or severe according to the degree of pain and amount of haematuria [8]. A more comprehensive grading system for the severity of HC has been proposed by Droller et al. [9] (Table 1) and is used in many of the clinical trials presented. In rare cases it may be severe and life-threatening, requiring cystectomy [10]. Although most studies focus on severe (grades III–IV) HC, grade I HC can cause disabling symptoms, e.g. frequency, urgency and pelvic pain, often localised to the bladder or urethra.

Table 1. Grading of HC as defined by Droller et al. [9]
INon-visible haematuria
IIMacroscopic haematuria
IIIMacroscopic haematuria with small clots
IVGross haematuria with clots causing urinary tract obstruction requiring instrumentation for clot evacuation

Chemical-induced HC

A wide variety of chemotherapeutic drugs may cause chemical-induced HC (Table 2), most significantly the oxazaphosphorine compounds, cyclophosphamide [11-13] and ifosfamide [14, 15]. Cyclophosphamide is used in the treatment of B cell malignant diseases and some solid tumours, conditioning before bone marrow transplantation, and in the treatment of certain immuno-inflammatory conditions, e.g. Wegener's granulomatosis, rheumatoid arthritis and systemic lupus erythematosus [1, 4]. The cause of bladder damage has been linked to acrolein, a urinary metabolite of cyclophosphamide and ifosfamide [16]. HC can develop weeks or months after treatment in 20–25% of patients who receive high-dose cyclophosphamide [17]. However, ifosfamide has a greater tendency to produce this complication possibly because of the generally higher doses administered, which result in higher amounts of acrolein and the additional excretion of chloroacetaldehyde [14].

Table 2. Frequently reported causes of chemical- and RT-induced HC
Chemotherapeutic agents





Paclitaxel/carboplatin therapy

Intravesical chemotherapy



Mitomycin C

Other therapeutic agents and environmental toxins


Gentian violet

Ketamine hydrochloride

Tiaprofenic acid

Topical agents

RTIncluding brachytherapy

Early-onset HC has been linked to toxic effects of chemo-irradiative agents used in the conditioning regimen for HSCT, e.g. cyclophosphamide and busulfan, and usually starts within 48–72 h after their use [1, 18]. There is a wide range of reported incidence of chemotherapy-induced HC, from <10% to 35% [19-21]. In a retrospective, single-centre survey of 834 patients who underwent allogeneic stem cell transplantation, Grades II–V and III–V HC, according to the NCI Common Terminology Criteria for Adverse Events [22], developed in 13.1% and 3.2% of patients, respectively. HC started on a median (range) of 35 (0-166) days after transplant and persisted for 23 (2–270) days [23]. Clinical data also show that different conditioning regimens [24-26] and type of malignancy [27] may affect the development of HC. In a meta-analysis of 18 comparative studies totalling 3172 patients, the busulfan/cyclophosphamide regimen was associated with higher rates of HC than the total body irradiation-cyclophosphamide regimen [24]. Interestingly, in a multivariate analysis by Tsuboi et al. [19], prophylactic administration of 2-mercaptoethane sodium sulphonate (mesna) (P = 0.01) and bladder irrigation (P < 0.001) increased early-onset HC after stem cell transplantation by an odds ratio of 5.5 (P = 0.01) and 9.5-times (P < 0.001), respectively.

Several other anti-cancer drugs can result in urothelial GAG loss [28]. BCG is currently regarded as the most effective intravesical treatment for superficial TCC, and is also given to reduce recurrence and progression rates after surgical debulking or removal of more extensive tumours. However, cystitis is a common side-effect, occurring in ≈80% of BCG-treated patients [29], while haematuria occurs in an estimated 20%, and LUTS in an estimated 71% of patients receiving maintenance BCG [30]. In a review of the evidence supporting the need for maintenance BCG, cases of cystitis and the perceived risk of adverse events, including cystitis, were both cited as reasons for poor compliance and early discontinuation of therapy [29]. This finding is particularly important for patient management when one considers that patients who fail BCG maintenance therapy will often go on to require radical cystectomy for ultimate management of their bladder cancer [31].

Cases of HC have also been reported with the use of other therapeutic agents, recreational drugs and environmental toxins, including intravesical chemotherapy with doxorubicin, epirubicin and mitomycin C [32, 33], tiaprofenic acid [34, 35], gentian violet [36], ketamine [37], and less commonly, with exposure to certain industrial chemicals, e.g. the pesticide chlorodimeform [38], and topical agents [1].

RT-induced HC

Radiation to the pelvic area can result in both acute and chronic bladder injuries [39], and can lead to RT-induced HC, which is a potentially devastating side-effect that develops in a small but significant proportion of the treated population (≈5–10%) [40]. However, the incidence depends on the series, grading system and the method of calculation that have been used [40]. RT-induced HC can occur long after RT has ended, from 2 months to 15 years later [41]. In the BC2001 study, late toxicity was measured with the Radiation Therapy Oncology Group (RTOG) and Late Effects of Normal Tissue (Subjective, Objective, and Management elements) (LENT/SOM) criteria in 360 patients with muscle-invasive bladder cancer, who were treated either with RT, or RT plus chemotherapy (fluorouracil and mitomycin C). Grade 3 or 4 LENT/SOM genitourinary toxicity (excluding sexual dysfunction) occurred in 16.0% of RT- and 16.9% of chemoradiotherapy-treated patients at 1 year [42]. While Grade 3 or 4 RTOG toxicity occurred in only 3.3% and 1.3% of patients, respectively, all these adverse events concerned genitourinary symptoms [42].

The clinical manifestations of late RT HC include urinary frequency, urgency, dysuria, haematuria, reduced bladder capacity, sphincter dysfunction, reduced bladder capacity, and bladder perforation [40]. Severe manifestations of the condition can result in surgical procedures, e.g. urinary diversion, with or without cystectomy [43]. The pathogenesis of RT-induced cystitis originates as a progressive obliteration of the small blood vessels of the bladder wall with consequent development of hypoxia and tissue damage [41].

Prevention and Treatment of HC

  1. Top of page
  2. Abstract
  3. Introduction
  4. Methods
  5. Results
  6. Prevention and Treatment of HC
  7. Discussion
  8. Acknowledgements
  9. Conflict of Interests
  10. Funding
  11. References

Hyperhydration and Continuous Bladder Irrigation

Mesna, hyperhydration and bladder irrigation appear to be the most frequently used prophylactic measures for treatment-related HC, with varying, often disappointing, results [44-52] (Table 3). For continuous bladder irrigation, it is vital that clots are evacuated before therapy as the success of subsequent irrigation often depends upon the thoroughness of this procedure [5].

Table 3. Summary of the key studies for bladder irrigation, hyperhydration and forced diuresis and mesna in the prevention of chemical- and RT-induced cystitis
AuthorStudy designPatients, nTreatmentIncidence of HC,% (P-value)Adverse effects, % (P-value)
  1. NS, not statistically significant. *Patients receiving busulfan + cyclophosphamide + RT or cyclophosphamide + RT; Patients receiving busulfan + cyclophosphamide; Grade III/IV haematuria.

Bladder irrigation     
Hadjibabaie et al. (2008) [44]Non-randomised, controlledHSCT patients, 40Bladder irrigation vs no bladder irrigation32 vs 50 (NS)UTI: 32.5 vs 20.0 (NS)
Turkeri et al. (1995) [45]RetrospectiveHSCT patients, 199Bladder irrigation vs no bladder irrigation23 vs 53 (<0.004)

UTI: 16.0 vs 14.0 (NS)

Moderate to severe discomfort and bladder spasms: 6.0 (NS)

Atkinson et al. (1991) [48]Prospective, randomisedBMT patients, 22Bladder irrigation vs no bladder irrigation

48 vs 29*

52 vs 38 (NS, irrigation vs no irrigation)

Not reported
Hyperhydration and forced diuresis     
Trotman et al. (1999) [49]ProspectiveHSCT or BMT patients, 681Hyperhydration and forced diuresis

HC: 18.2

Grade 3 or 4: 3.4

Not reported
Murphy et al. (1994) [50]RetrospectiveBMT patients, 227Hyperhydration + mesna vs hyperhydration alone16 vs 8 (0.08)One patient receiving hyperhydration alone developed a bladder perforation, requiring surgical repair
Vose et al. (1993) [52]Prospective, randomisedBMT patients, 200Mesna vs bladder irrigation18 vs 18 (NS)UTI: 14 vs 27 (0.03)
Shepherd et al. (1991) [51]RandomisedBMT patients, 100Mesna vs hyperhydration33 vs 20 (NS)No unexpected toxicities

Turkeri et al. [45] reported that continuous bladder irrigation significantly decreased the frequency of HC in patients receiving busulfan and cyclophosphamide as a preparative regimen for bone marrow transplant (BMT) compared with no bladder irrigation (23% vs 53%, respectively; P < 0.004). Similar findings were reported by Hadjibabaie et al. [44] in a non-randomised, controlled study of HSCT patients who received mesna, hydration, and alkalisation regimens. HC occurred in fewer patients who received continuous bladder irrigation than in those who did not (32% vs 50%, respectively; P = 0.11). Continuous bladder irrigation was also found to significantly reduce the mean duration of HC (10 vs 18 days; P = 0.02) and the duration of hospitalisation (30.2 vs 39.6 days; P < 0.001) [44]. In a study by Trotman et al. [49], the overall incidence of HC in HSCT patients using a prophylactic regimen of hyperhydration and forced diuresis was 18.2%. Grade III or IV HC, based on the system devised by Droller et al. [9], occurred in 3.4% of patients. Of potential significance, a randomised study by Atkinson et al. [48] showed that bladder irrigation did not minimise the risk of HC in patients receiving allogeneic BMT as a treatment for haematological malignancy.


Other routine methods of preventing chemical-induced HC include the use of mesna, which was specifically developed to bind acrolein in the urine. Mesna has been extensively investigated in the management of cyclophosphamide- and ifosfamide-induced HC with variable results [15, 50-57]. It is also unclear whether the addition of mesna therapy to hyperhydration provides greater protection in BMT patients who are exposed to cyclophosphamide. Shepherd et al. [51] concluded that both approaches were equally effective in preventing cyclophosphamide-induced HC in BMT patients. Nevertheless, HC was still seen in 33% of patients who received mesna prophylaxis [51]. Similar findings were reported by Vose et al. [52] in a prospective randomised trial of mesna and continuous bladder irrigation. Whilst the overall incidence of haematuria of any grade was significantly higher in the bladder-irrigation group compared with the mesna group (76% vs 53%; P = 0.007), the incidence of grade III and IV haematuria was the same in both treatment groups (18%; statistically non-significant) [52]. Less convincing data were reported by Murphy et al. [50] who failed to show a benefit in adding mesna to hyperhydration in preventing cyclophosphamide-induced HC. Other authors have also found that mesna prophylaxis does not completely prevent bladder damage [15] and possibly has a toxic effect on bladder mucosa [19].

Intravesical Therapy

Despite prophylactic hyperhydration, continuous bladder irrigation or use of mesna, some BMT patients may have refractory HC and require alternative treatment regimens [58]. Several intravesical therapies have been evaluated including chondroitin sulphate, sodium hyaluronate, prostaglandins (PGE1 PGE2, and PGF), formalin, and alum irrigation (Table 4) [58-68].

Table 4. Summary of the key studies on intravesical therapy used in chemical- and RT-induced cystitis
AuthorStudy designPatients, nTreatmentEfficacyAdverse effects
  1. CT, chemotherapy; CYC, cyclophosphamide; BT, brachytherapy; NS, not statistically significant; *Toxicity assessed using RTOG/EORTC Radiation Toxicity Score; Complete response defined as the day when the symptoms improved.

Chondroitin sulphate     
Hazewinkel et al. (2011) [59]Comparative pilotPatients with gynaecological malignancies undergoing RT, 20Chondroitin sulphate vs no chondroitin sulphateHC not reported. Trend towards less bothersome urogenital symptoms in treatment groupWell tolerated
Sodium hyaluronate     
Shao et al. (2012) [60]RandomisedPatients with pelvic malignancies undergoing RT, 36Sodium hyaluronate vs HBO

Complete response:

6 months: 87.5% vs 75.0%

12 months: 75.0% vs 50.0%

18 months: 50.0% vs 45.0% (all NS)

Decrease in voiding frequency: significant at 6 months in both groups (P < 0.05) and at 12 months for sodium hyaluronate (P < 0.05)

VAS: significant improvement maintained for 18 months in both groups.

UTI: 42.8% vs 10.0% in first 6 months (P = 0.034)

NS at 12 and 18 months

Sommariva et al. (2010) [61]ProspectiveConsecutive patients with cystitis receiving CT for bladder cancer or RT for prostate cancer, 69Sodium hyaluronate

After 4 weeks, bladder capacity increased in all patients, and urgency and pain disappeared.

97% reported complete relief of dysuria and pain

No adverse effects observed
Delgado et al. (2003) [62]RetrospectiveConsecutive patients with cervix/uterine cancer undergoing RT, 90Standard of care vs standard of care alone plus sodium hyaluronate

RT toxicity:*

Week 4: 1.33 vs 0.71 (P < 0.005)

End of RT: 1.24 vs 0.71 (P < 0.004)

Not reported
 Samper Ots et al. (2009) [63]RetrospectivePatients with acute vesical toxicity caused by BT, 95Sodium hyaluronate vs no sodium hyaluronate

Over whole study period, vesical toxicity significantly lower for sodium hyaluronate

(2.08% vs 12.8%; P < 0.05)

No related adverse effects
Ippoliti et al. (1995) [58]Case seriesBMT patients with grade III or IV HC, 24Prostaglandin F

62% had total response with doses ≥0.8 mg/dL

9 (37.5%) patients relapsed at median of 7 days

95.8% had bladder spasms
Levine et al. (1993) [64]Case series

BMT patients, 16

and patients with cancer, 2

with HC after CYC treatment

Prostaglandin F

50% had complete reduction in gross haematuria

3 cases of recurrent haematuria

78.0% had bladder spasms
Lojanapiwat et al. (2002) [65]Case seriesPatients with pelvic malignancies and intractable haemorrhage secondary to RT-induced cystitis, 114% formalin82% had complete response4 major complications (e.g. anuria, fistula) and several minor (e.g. fever, tachycardia) complications
Dewan et al. (1993) [66]Retrospective reviewPatients with cervical cancer with HC after RT, 351% formalin89% had complete response and 8% partial responseMajor complications in 11%, with 5 requiring subsequent urinary diversion. Probable formalin toxicity in 1 patient
Vicente et al. (1990) [67]Retrospective reviewPatients with HC after CYC or RT, 254% formalin88% had good result1 case of upper urinary tract dilatation
Alum irrigation     
Ho et al. (2009) [68]Case reportPatient with ovarian cancer and HC after RT1% alumHaematuria stopped after 24 hWell tolerated
Chondroitin sulphate

Most of the published studies on the use of chondroitin sulphate have evaluated its use in the treatment of interstitial cystitis/painful bladder syndrome. Based on animal studies, Hazewinkel et al. [59] hypothesised that prophylactic installation of chondroitin sulphate in patients undergoing RT for gynaecological malignancies may limit the risk of RT cystitis symptoms. In their pilot study, the efficacy of chondroitin sulphate was evaluated in 20 patients; 10 received weekly intravesical installations and 10 were controls. The acceptability of instillations and bladder pain were evaluated using a visual analogue scale (VAS). The patients receiving chondroitin sulphate reported less bothersome symptoms and the treatment was well tolerated. The instillations also appeared to reduce overactive bladder symptoms during the period of RT. These findings support those of an earlier multi-national, multicentre, prospective observational clinical trial of patients with chronic forms of cystitis associated with a possible GAG layer deficit, including RT-induced cystitis [69]. However, larger trials are required to specifically assess the evidence in support of the prophylactic use of chondroitin sulphate in patients undergoing RT.

Sodium hyaluronate

Sodium hyaluronate, a derivative of hyaluronic acid, has been developed to temporarily replenish the deficient GAG layer [7] and has been used successfully in the treatment of refractory interstitial cystitis [70, 71] and more recently in preventing and treating chemical- and RT-induced HC [7, 60-63, 72-74]. Data from a retrospective study by Delgado et al. [62], which assessed toxicity using the RTOG/European Organisation for the Research and Treatment of Cancer (EORTC) Radiation Toxicity Score show that weekly instillations of sodium hyaluronate in patients receiving RT for gynaecological tumours decreased RT-induced toxicity. In a 5-year follow-up study, Samper Ots et al. [63] also found that, compared with no sodium hyaluronate, intravesical installation of hyaluronic acid before each brachytherapy session significantly reduced the incidence of RT-induced cystitis in patients with cervical and endometrial cancer after the second (20.8% vs 40.4%) and fourth session (10.9% vs 31.9%) (P < 0.05, for both comparisons). Over the whole study period, the percentage of patients presenting vesical toxicity of grade ≥2 was significantly lower in the sodium hyaluronate group (2.08% vs 12.8%; P < 0.05).

Further data from a prospective study by Sommariva et al. [61] show that sodium hyaluronate also relieves the symptoms of chemo- or RT-induced cystitis. In all, 69 consecutive patients who had symptoms of cystitis after RT for prostatic cancer or after intravesical BCG or mitomycin C were given intravesical instillations of sodium hyaluronate and cortisone. Overall, 67 (97%) patients reported complete relief of dysuria and pain, which was assessed using a VAS. Patients with chemical-induced cystitis were found to respond slightly better than those who had RT-induced cystitis. Shao et al. [60] have also shown that intravesical instillation of sodium hyaluronate is as effective as hyperbaric oxygen (HBO) therapy in the treatment of RT-induced cystitis. In this randomised study of 36 patients with pelvic malignancies, there was no statistical difference between the two groups in the improvement rate (complete response and partial response) at 6, 12 and 18 months after treatment. However, whilst the decrease in frequency vs baseline was significant in both groups 6 months after treatment, it was significant only in the sodium hyaluronate group 12 months after therapy. This treatment strategy was well tolerated and resulted in a sustained decrease of bladder bleeding, pelvic pain and frequency of voiding for ≥12 months [60].


Data from several published case series [58, 64] and case reports [75-78] suggest that intravesical prostaglandins (PGE1 PGE2, and PGF) may be useful to prevent or treat HC secondary to RT or cyclophosphamide therapy. Although the exact mechanism of action is unclear, the prostaglandins may work by causing smooth muscle contraction of the blood vessels in the mucosa and submucosa, through membrane stabilisation, or by induction of haemostasis with platelet aggregation [58].

Ippoliti et al. [58] evaluated the use of a F analogue in 24 adult BMT recipients with grade 3 or 4 HC who had received a conditioning regimen of cyclophosphamide administered with hyperhydration and mesna. Overall, 15 (63%) patients responded to treatment, with a median time to response of 3 days. However, nine of these patients (37.5%) had a recurrence of HC at a median of 7 days later. These results were comparable to other small series [64]. The main reported side-effect of prostaglandins appears to be the occurrence of bladder spasm [58, 64].


Intravesical formalin installation has been evaluated for the treatment of HC secondary to RT-induced cystitis [65-67] and cyclophosphamide therapy [67], and has been shown to be effective in controlling severe bladder haemorrhage after RT of the pelvis [65, 67]. In a retrospective review of 35 patients with RT-induced HC, formalin therapy resulted in a complete response in 89% of patients [66]. However, treatment is dose-dependent [65]. There have also been reports of major complications (e.g. anuria, vesicle fistula) and minor complications (e.g. fever, transient tachycardia) after treatment, and recurrent haematuria, as well as probable fatal toxicity [65, 66].

Alum irrigation

Alum irrigation was first reported in 1982, when it was successfully used to treat six patients with massive bladder haemorrhage secondary to RT cystitis, bladder carcinoma and HC [79]. Since then, there have been several reports on the use of alum irrigation in the management of cyclophosphamide- and RT-induced HC with varying degrees of success [68, 80, 81]. There have also been several case reports of aluminium toxicity after intravesical alum irrigation for HC in children [82-84]; therefore, vigilance is needed to avoid these toxic effects [68].

Systemic Treatments

Systemic treatments, e.g. HBO, oestrogen, sodium pentosanpolysulphate, recombinant factor VII or VIII, and aminocaproic acid have been used with some success in the treatment of HC (Table 5) [39, 41, 85-92].

Table 5. Summary of the key studies on systemic treatments used in chemical- and RT-induced cystitis
ReferenceStudy designPatients, nTreatmentEfficacyAdverse effects
  1. CYC, cyclophosphamide; rFVIIa, recombinant factor VII; SPP, sodium pentosanpolysulphate.

Nakada et al. (2012) [85]ProspectivePatients with prostate cancer with CYC-induced HC, 38HBOHigh efficacy ratios of objective and subjective findings obtained at 2 and 4 (79–95%) years, respectivelySome patients complained of occasional otalgia during follow-up.
Vilar et al. (2011) [41]ProspectivePatients with cancer with RT-induced HC, 38HBO

75% response rate for patients presenting with severe haematuria.

94% global response rate after average follow-up of 36.3 months

Well tolerated

1 patient had an episode of barotrauma.

Oliai et al. (2012) [86]RetrospectivePatients with RT-induced HC and proctitis, 19HBO

81% complete response.

18% partial response.

36% recurrence after median 10 months.

Otalgia in 33%.

No major adverse effects observed.

Davis et al. (2011) [87]Retrospective reviewPatients with CYC-induced HC, 6HBOAll 6 responded after 14–40 HBO therapy sessions1 patient had bilateral myringotomies to equalise pressure in middle ear.
Ajith Kumar et al. (2011) [88]Case reportsPatients with CYC-induced HC, 2HBOBoth patients responded after 19–36 sessionsNo side-effects observed.
Mohamad Al-Ali et al. (2010) [89]Retrospective reviewPatients with different pelvic organ malignancies and RT-induced HC, 14HBO vs no HBO20% (3 of 14) response rateNo adverse effects observed.
Heath et al. (2006) [90]Case seriesHSCT children/adolescents with HC, 10Conjugated oestrogen

80% significant improvement in haematuria

60% resolution of macroscopic haematuria

Generally well tolerated. Treatment interrupted in one patient (hepatotoxicity)
Ordemann et al. (2000) [91]Case reportsHSCT and cancer patients with HC, 10Conjugated oestrogen

50% resolution in patients with mild HC.

80% resolution in patients with severe HC

Generally well tolerated. Treatment interrupted in one patient (hepatotoxicity)
Sodium pentosanpolysulphate     
Sandhu et al. (2004) [39]RetrospectivePatients with RT- or CYC-induced HC, 51SPP

19.6% resolution of haematuria.

41% dose reduced to a maintenance dose.

No side-effects requiring discontinuation
Ashrani et al. (2006) [92]PilotPatients with refractory chemotherapy-induced HC, 7rFVIIa

85.7% response rate (57.1% complete; 28.6% partial).

Response duration temporary

No serious adverse effects
HBO therapy

HBO therapy promotes capillary angiogenesis and the healing process in damaged tissue and has been extensively evaluated in the management of adults with RT-induced [41, 85, 86, 93-97] and cyclophosphamide-induced [87, 88, 98] HC. Nakada et al. [85] and Oliai et al. [86] recently reported favourable outcomes in patients treated with HBO therapy for RT-induced HC. Similar findings were also reported in a prospective study by Vilar et al. [41]. In all, 14 patients received HBO treatment for the first time, whereas 24 had received previous treatment with HBO. After a mean (range) follow-up of 36.3 (12–60) months, haematuria was completely resolved in 36 (94.7%) patients [41]. Conversely, Mohamad Al-Ali et al. [89] found that few patients recovered from HC after HBO therapy. Furthermore, patients treated with HBO had a significantly lower cure rate of post-RT HC in comparison with patients who did not receive HBO.

Although much of the research has focussed on RT-induced cystitis, there have been several recent case reports on the use of HBO in the management of cyclophosphamide-induced HC. Davis et al. [87] reviewed the case records of six patients with life-threatening haemorrhage and reported that bleeding ceased in all patients after 14–40 treatments without complications. Similarly, Ajith Kumar et al. [88] retrospectively reviewed the case notes of two patients with drug-induced HC and reported that HBO therapy resulted in complete cessation of bleeding in both cases, with no side-effects noted during the course of therapy. There are also case reports concerning the successful use of HBO for intractable, refractory HC in patients with systemic lupus erythematosus [99] and Wegener's granulomatosis [100]


Several small series and case reports have reported that HC secondary to RT or cyclophosphamide therapy has been successfully treated with oestrogen [90, 91, 101, 102]. Heath et al. [90] reported that eight out of 10 children and adolescents treated initially with intravenous oestrogen and then oral oestrogen after 2 or 3 days had a significant reduction in their symptoms after commencing therapy. In another series, Ordemann et al. [91] reported that, after treatment with oral oestrogen, haematuria resolved in two of four adult patients with mild HC and four of five patients with severe HC. In all the case reports, oestrogen therapy appeared to be generally well tolerated [90, 91, 101, 102]. Potential adverse effects of long-term exposure to oestrogens include an increased risk of cancer [91].

Sodium pentosanpolysulphate

Sodium pentosanpolysulphate is a semi-synthetic GAG similar to heparin with anticoagulant properties and fibrinolytic effects [5]. This treatment has had some success in small series and case reports in treating patients who have developed HC secondary to RT or cyclophosphamide therapy [103-105], but the patient series have been limited in size. In a larger study, Sandhu et al. [39] retrospectively reviewed the pharmacy records of 60 patients with HC; of these patients, 53 had received radical RT for pelvic malignancy and seven had received systemic cyclophosphamide. After treatment with sodium pentosanpolysulphate, the dose was gradually reduced in 21 patients and treatment was discontinued in a further 10 patients because the haematuria stopped completely. Although the safety and efficacy of sodium pentosanpolysulphate has not been established in paediatric patients [5], a recent retrospective case note review of children with HC after stem cell transplant/chemotherapy reported that early identification, avoidance of urethral catheterisation, and use of sodium pentosanpolysulphate significantly reduces blood transfusion requirements and mortality from HC [103].

Recombinant factor VIIa/factor XIII

Several case reviews and case reports have suggested a potential role for recombinant factor VII or XIII in the treatment of cyclophosphamide- and RT-induced HC [106-109]. Ashrani et al. [92] reported the results of a pilot study using high-dose activated recombinant factor VII in seven adult patients with severe refractory HC and prior exposure to cyclophosphamide or ifosfamide. Six of the seven patients achieved a response: four complete responses and two partial responses. Although there was no serious adverse event, the response duration was found to be only temporary. In a multicentre, randomised trial, Pihusch et al. [110] reported no aggregate benefit in the treatment of various haemorrhagic complications, including HC, with recombinant factor VII after HSCT, although post hoc analysis showed an improvement in the control of bleeding with increased dose.

Aminocaproic acid

Aminocaproic acid has proved to be successful in one small study of 37 patients with intractable bladder haemorrhage, most of whom had RT- or cyclophosphamide-induced cystitis. No side-effects were observed [111].

Other Therapeutic Approaches

Anecdotally, patients with chemical or RT-induced cystitis are often advised to try cranberry juice, and in some centres, it is considered the ‘gold standard’ of treatment. A recent systematic review and meta-analysis of 13 randomised controlled trials showed that cranberry-containing products are associated with a protective effect against UTIs [112]. The mechanism is thought to be the adhesion of bacteria to uroepithelial cells by proanthocyanidins, a compound present in cranberry [113]. Although earlier studies showed statistically insignificant or negative results [114, 115], data from a recent study show that the beneficial effects of cranberry extract in prevention of LUTS can be seen in patients with prostate cancer with acute bladder damage associated with high-dose RT [113]. The authors propose that because of its strong antioxidant properties, it is possible that cranberry could attenuate actinic damage to the bladder mucosa, reducing the inflammatory process and, as a consequence, its symptoms. However, further studies are warranted [113].

Over the last 15 years, numerous other therapeutic approaches have been tried and have shown some benefit in the treatment of HC. These include: botulinum toxin A bladder injections in patients with refractory RT-induced cystitis and BCG-induced chemical cystitis [116], intravesical recombinant human granulocyte-macrophage colony-stimulating factor [117], neodymium:YAG (yttrium-aluminium-garnet) laser therapy [118, 119], and WF10 (tetrachlorodecaoxide i.v. solution) therapy [120]. However, the role of many of these treatment methods remains investigational.

Surgical Approaches to HC

In cases where medical treatment has failed to control HC, surgical intervention may be the treatment of last resort [1, 121]. Several options have been used, including cutaneous ureterostomy [121], cystoscopy and diathermy [122], vesical artery embolization [123-125], and supravesical urinary diversion with, or without, radical cystectomy [43, 126]. Although successful resolution after the various interventions has been reported in a limited number of case studies [10, 121-125], major surgical procedures in these cases can be associated with high morbidity and mortality [125], as well as leading to permanent changes to the anatomy and function of the genitourinary system [10, 127].


  1. Top of page
  2. Abstract
  3. Introduction
  4. Methods
  5. Results
  6. Prevention and Treatment of HC
  7. Discussion
  8. Acknowledgements
  9. Conflict of Interests
  10. Funding
  11. References

HC remains a significant complication after high-dose chemo-RT, especially in conjunction with HSCT [7]. However, there is a wide range of reported incidence due to several factors including: the type of causal agent, the grading of bleeding, and discrepancies in definition criteria [7, 23]. Although HC is a potentially severe complication, which can cause significant morbidity and considerable expense due to prolonged hospitalisation [18], there is no published national or international consensus on the optimal therapeutic strategy. The present review has highlighted that the evidence base is currently limited for the various treatment methods used to prevent and/or treat HC. Most of the reported studies are either uncontrolled, non-randomised studies, or small case series or case reports, and involve few patients who have had several different treatment methods. The two therapeutic approaches with seemingly the best available evidence are HBO therapy in the treatment of HC and sodium hyaluronate in the prevention and treatment of HC.

Several studies have evaluated the use of standard prophylactic measures, including bladder irrigation and the use of mesna, to reduce the risk of HC, but the results have been variable. While bladder irrigation and mesna have been shown to be effective in preventing HC [44, 45], Tsuboi et al. [19] unexpectedly found that both these prophylactic measures increased the frequency of HC after HSCT, particularly when mesna was administered with busulfan. Therefore, it appears that the standard preventive protocols do not always satisfactorily protect the patient from bladder injury [128].

HBO therapy has been shown to have efficacy in the treatment of patients in whom other forms of management have failed, with few side-effects [39, 86, 87, 97]; although the number of HBO treatments administered and characteristics of hyperbaric exposure differs among the various reports. A randomised controlled study on the use of HBO for the treatment of RT-induced HC is currently recruiting patients [129]. Whilst HBO therapy appears an effective treatment method for HC, the practicalities of longer-term administration and access/availability issues are potential barriers to its more widespread use.

In recent years, GAG-replenishment therapy has widened the therapeutic options for patients with HC [130]. Intravesical installation of sodium hyaluronate has been used successfully in the prevention and treatment of chemical- and RT-induced HC. Studies have shown that sodium hyaluronate can significantly relieve bleeding, pain and dysuria and is well tolerated [61-63, 72]. Data from a small randomised study have shown that it is at least as effective as HBO at treating RT-induced HC [60]. The positive efficacy results and apparent lack of side-effects make sodium hyaluronate a potentially attractive option for the prevention and treatment of HC secondary to RT and chemotherapy, particularly in patients already catheterised.

Several other therapeutic and preventive measures have also been used in the treatment of HC, e.g. intravesical prostaglandins, chondroitin sulphate, oestrogen therapy, and sodium pentosanpolysulphate. Whilst there has been some reported success with these therapies [39, 58, 59, 91], it is difficult to draw any firm conclusions due to the generally poor quality of the available evidence.

A systematic review and meta-analysis of interventions for preventing HC in patients undergoing HSCT is currently being undertaken by the Cochrane Collaboration and it is hoped that this will provide more conclusive evidence on the optimum treatment [131]. The lack of robust data and variability in treatment strategies used highlights the need for further research, as well as best practice guidance and consensus on the management of this complication, which can often be challenging to treat.


  1. Top of page
  2. Abstract
  3. Introduction
  4. Methods
  5. Results
  6. Prevention and Treatment of HC
  7. Discussion
  8. Acknowledgements
  9. Conflict of Interests
  10. Funding
  11. References

Writing and editorial support was provided by Strategen Limited, Basingstoke, UK.

Conflict of Interests

  1. Top of page
  2. Abstract
  3. Introduction
  4. Methods
  5. Results
  6. Prevention and Treatment of HC
  7. Discussion
  8. Acknowledgements
  9. Conflict of Interests
  10. Funding
  11. References

The authors received no financial support. All authors have previously served as advisors, speakers and/or investigators for Teva UK Limited and have received honoraria/research grants in this regard.


  1. Top of page
  2. Abstract
  3. Introduction
  4. Methods
  5. Results
  6. Prevention and Treatment of HC
  7. Discussion
  8. Acknowledgements
  9. Conflict of Interests
  10. Funding
  11. References

Teva UK Limited has provided arm's length funding to support the production of this article. Teva UK Limited did not initiate this article, and has had no input into the editorial content or the final article.


  1. Top of page
  2. Abstract
  3. Introduction
  4. Methods
  5. Results
  6. Prevention and Treatment of HC
  7. Discussion
  8. Acknowledgements
  9. Conflict of Interests
  10. Funding
  11. References
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