Therapeutics Exam 2 Pt. 2 (Weddle) Flashcards
(217 cards)
Prostate Cancer: Main etiologies? Hormonal:\_\_\_\_\_\_\_\_ \_\_\_\_\_\_\_ receptor alterations Enzyme \_\_\_\_\_\_\_ is key to synthesis of the hormone can be genetic (small % tho)
testosterone hormone….
Androgen receptor alterations (amplification/overexpression; mutations; splice variants)
enzyme: CYP17A1
Prostate Cancer: Risk Factors:
Age: increases with increasing age
Race: more common in ______ (thought to be due to differences in androgen receptors and testosterone production)
Family Hx: increased risk with first degree relative
Others: ?
race: African Americans
Others:
Diet - high fat = higher risk
Occupation - textile and other industrial workers = increased risk
(long term vasectomy– but like no because maybe they are been screened more/have an urologist)
Prostate Cancer:
what things may have a Protective effect?
Vit. E
selenium
soy
lycopenes
screening options for Prostate Cancer?
DRE (direct rectal exam) (nose feeling = normal; chin = more of concern)
PSA (prostate specific antigen)
(TRUS - transrectal ultrasonography = bad specificity and sensitivity)
PSA levels:
normal: ______
needs evaluation: ______
Highly suspicious of malignancy: _______
OR is PSA velocity (change in a year) is _______
normal: 0 - 4 ng/mL
eval: > 4
suspic for malignancy: > 10
PSA velocity: > 0.75
Factors of PSA levels:
what will decrease PSA
finasteride and dutasteride
Factors of PSA levels:
what will increase it
ejaculation/prostatic manipulation or biopsy
BPH
prostatitis
ACS Screening Guidelines for Prostate Cancer:
Men > _____ y.o should get a PSA +/- DRE
50 years old!
ACS Screening Guidelines for Prostate Cancer:
once a man gets a PSA:
if his PSA is < _____ they should get the PSA checked every 2 years
or
if his PSA is > _____ they should get the PSA checked every annually
if < 2.5 - Q 2 years
if > 2.5 - then yearly
Discussion of screening of prostate cancer should happen earlier in high risk patients —
who is high risk and when to start screening
if african american - higher chance - start at age 45
if several first degree relatives - maybe start at 40 y.o
T or F: Finasteride but not dutasteride is approved for prostate cancer prevention
FALSE! neither of them are
there were trials for them but like not FDA approved
Finasteride trial finding in relation to prostate cancer prevention?
did reduce risk BUT people who did get prostate cancer had disease with a higher GLEASON score (aka more aggressive and less differentiated)
but maybe because prostate had shrunk – they could get better biopsies and diseases looked worse..?
what is the current recommendation for prostate cancer prevention?
there is not one :’(
Prostate Cancer Pathophys:
the _______ passes through the prostate and prostatic hypertrophy may compress it
urethra
Prostate Cancer Pathophys:
compressing on the urethra may lead to what things related to urination?
increaesd frequency inability to start and stop flow dysuria hematuria nocturia incomplete bladder emptying dribbling
Signs and Symptoms of Prostate Cancer:
asymptomatic early on... but advanced disease: alterations in urinary habits impotence lower extremity edema weight loss anemia
Prostate Cancer:
Metastasis to the ______ is most common but can also go to liver and lung
bone
99% of Prostate Cancer is ______
what kind of histology
adenocarcinoma
Explain Gleason Score
can be 2 - 10
get 2 diff scores (1 -5) from the primary and secondary growth patterns then add them together
higher score = higher risk of exracapsular spread
Gleason Score:
scores of _____ = slow growing and well differentiated
scores of ____ = aggressive and poorly differentiated
2 - 4 = slow
8 - 10 = aggressive
TNM staging for prostate:
T is referring to the _____ of the tumor
the spread of it/how extended it is (like if on both lobes or not)
T is not referring to size per se
what are the overall possible treatment options for prostate cancer
observation
active surveillance
Radiation therapy - external beam = ERBT
brachytherapy - implantable radiation therapy
Radical Prostatectomy + PLND (pelvic lymph node dissection)
ADT (androgen deprivation therapy)
How to do observation treatment for prostate cancer pts
PSA and DRE Q 6 mos
just monitor the course of disease - expect to deliver palliative therapy for development of sxs or change in the monitoring
(usually someones heart will kill them before prostate cancer will…. so like we dont have to freak if we suspect something)
Pros and Cons of observation therapy of prostate cancer pts
pros: avoids immediate morbidity assoc. w/ treatment
cons: risk of disease complications such as urinary retention or fractures