Management of Resolved Gross Hematuria
Patients with resolved gross hematuria require a complete urologic evaluation including risk stratification, cystoscopy, and appropriate imaging to rule out underlying malignancy, regardless of resolution of symptoms. 1
Initial Assessment
After resolution of gross hematuria on continuous bladder irrigation (CBI), the following steps should be taken:
Risk stratification based on:
- Age (>60 years increases risk)
- Sex (male gender increases risk)
- Smoking history
- Exposure to industrial chemicals
- Family history of urologic malignancy
- History of pelvic radiation 1
Laboratory evaluation:
- Repeat urinalysis to confirm resolution of hematuria
- Urine culture to rule out infection
- Serum creatinine and BUN to assess renal function
- Complete blood count 1
Diagnostic Workup
Imaging
- CT urography is the primary recommended imaging modality (sensitivity 92%, specificity 93%) 1
- MR urography for patients with contrast allergy or renal insufficiency
- Renal ultrasound may be used as an alternative in young, low-risk patients 1
Cystoscopy
- Mandatory for all patients with gross hematuria regardless of resolution, with sensitivity ranging from 87% to 100% for detecting bladder cancer 1
- Should be performed even if imaging is normal, as small bladder lesions may not be visible on imaging studies
Follow-up Protocol
If evaluation is negative but risk factors exist:
- Repeat urinalysis at 6,12,24, and 36 months 1
- Immediate re-evaluation if recurrent gross hematuria, abnormal urinary cytology, or new irritative voiding symptoms occur
If a non-malignant cause is identified:
Important Considerations
Anticoagulation status does not change the evaluation protocol - patients on antiplatelet agents or anticoagulants require the same evaluation as those not on these medications 2
Do not assume resolution means benign etiology - gross hematuria carries a >10% risk of underlying malignancy even if it resolves spontaneously 1, 3
Do not delay evaluation - prompt and thorough investigation is essential, as delaying may permit a significant disease process to become more extensive 4
Common Pitfalls to Avoid
Assuming resolution equals no pathology - gross hematuria requires complete evaluation even after resolution 1, 4
Inadequate follow-up - failing to monitor patients after initial negative workup 5
Incomplete evaluation - not performing both cystoscopy and appropriate imaging in high-risk patients 1
Attributing hematuria solely to anticoagulation - anticoagulation may exacerbate bleeding but rarely causes it without underlying pathology 1