CUA GL management of NMIBC- 2015 Flashcards
what are risk factors for bladder cancer?
smoking, chronic inflammatory changes( due to infection, stones, indwelling catheter, shisto), chemotherapeutic exposure( cyclophosphamide) , pelvic radiation, occupational exposure to aromatic amines, chronic phenacetin use. lynch syndrome
what percentage of bladder cancer is NMIBC?
75-80%, Ta>T1>CIS, bladder cancer is the most expensive human cancer to treat
what are prognostic factors for recurrence and progression of bladder cancer
grade(very important) , stage, multifocality, presence of LVI, presence of CIS, size, recurrence, number of tumors, Others: variant histology
WHAT IS THE OVERALL recurrence rate of NMIBC?
60-70%
Based on the EORTC what is low risk and high risk NMIBC?
low risk: Ta low grade, solitary, <3cm high risk: T1, high grade or CIS– also treat Ta and >3cm and multifocal and multi recurrent like high risk
what is intermediate risk NMIBC per EORTC?
multifocal, or multi-recurrent TaLG, >3cm
algorithm for manamgent of NMIBC
What are key elements of TURBT to keep in mind?
Complete resection of all visible tumor (including CIS) with adequate depth to include muscularis propia
bimanual examination should be performed under GA at the begining and at the end
How do HAL Photodynamic diagnosis and NBI help with NMIBC ?
improve tumor detection and early recurrences. not known if this benefit keeps with post-op instilation of mitomycin C.
the impact on long term is not known( per 2015 GL)
what is the fluoroscent diet used for fluroscent cysto?
Hexyl-aminolevulunate (HAL) - given in bladder an hour before - which is a derivative of 5-ALA( given in bladder 2-4 hours before). works for patients who have had BCG too.
When patients were given a single dose of post op mitomycin C there was no difference in recurrence rate
what can cause false positive findings for fluoroscent cystoscopy?
inflammation, recent TUR, recent intravesical therapy
what are the wavelength for NBI?
415nm(Blue) to 540(green)
this light is strongly absorbed by hgb making it easier to see the tumor. Tumor tissue is usually more vascular
when is prostatic urethral biopsy recommended in the context of NMIBC?
tumor of the trigone or bladder neck, visible abnormality of the prostate, extensive CIS, positive cytology wihtout a source,
how should prostate urethra biopsies be performed?
suspicious areas + 5 and 6 oclock(precollicular area) esp at the level of veromonatnum. why? bc this has the most prostatic ducts. make sure to take a good bite to have stroma in it too
how do you treat CIS of prostatic urethra?
TURP and then BCG as usual. rebiopsy after induction to reassess
if prostatic ducts are involved it is controversial( bc of high risk of invasion)
what are indicaitons for cystectomy and urethrectomy?
high grade recurrence POST BCG, prostatic stromal involvment