Staging of Prostate Cancer
1. Procedures & Tests 2. Staging 3. Procedures and Risks:
Radical Retropubic Prostatectomy and Pelvic Lymph Node dissection Laparoscopic Prostatectomy Brachytherapy Cryotherapy Focal and Partial Cryotherapy External Beam Irradiation HIFU (high intensity focused ultrasound) Hormone Therapy Chemotherapy
1) Procedures and tests that I commonly use:
TRUS and Biopsy (trans-rectal Ultrasound and biopsy of the prostate)- done to identify and localize the cancer, usually the prostate is divided into 6 areas (sextants) and the biopsies are accomplished in each of the areas.
PSA- (prostatic specific antigen)- a blood test that checks the amount of a protein made by prostate cells
Prostatic Acid Phosphatase- PAP- a blood test that looks for metastatic disease in any location.
Alkaline Phosphatase- a blood test that looks for disease in the liver or bones. If this is abnormal, a bone scan is performed.
Bone Scan- a test where a nuclear agent is injected into the vein, is absorbed by the bones and shows if prostate cancer has metastasized into the bones
MRI with endorectal coil- a scan where a balloon catheter is placed into the rectum and a scan is performed to show if the cancer has grown through the capsule of the prostate, into the adjoining seminal vesicles or into the lymph glands.
Back to Top
2) Staging
T1a – unsuspected cancer after a TURP <5% of the specimen
T1b - unsuspected cancer after a TURP >5% of the specimen
T1c – elevated PSA with a normal exam
T2a – palpable cancer < or = 50% one side
T2b - palpable cancer > or = 50% one side
T2c - palpable cancer > both sides
T3a – palpable cancer one side growing through the capsule
T3b - palpable cancer both sides growing through the capsule
T3c – cancer invading the seminal vesicles
T4a – cancer that involves the bladder neck, rectum, or external sphincter
T4b – cancer that involves other areas near the prostate
N0 – no cancer in the lymph nodes
N1 – 1 or more lymph nodes <2 cm
N2 - 1 or more lymph nodes 2 – 5 cm
N3 - 1 or more lymph nodes >5 cm
M0 – cancer confined to the prostate
M1 – cancer that has distant spread to other organs
Back to Top
3) Procedures and Risks:
Radical Retropubic Prostatectomy and Pelvic Lymph Node dissection:
2-3 hospital days, full recovery over 4-6 weeks
a) incontinence- significant improvement in 3 –6 months, 7% severe long term incontinence; treatment- Kegels exercises, adult diapers or pads, condom catheter, penile clamp, avoid caffeine
after 6 months if severe may consider the surgical placement of an artificial sphincter or a surgical sling procedure
b) blood loss requiring transfusion
c) impotence 50% if normal preop, early use of Viagra tends to improve the impotence rate, late treatment consists of vacuum devices, injection of medications into the shaft of the penis, medications placed up the urethra, or a surgical implant
d) bowel urgency generally resolves in 3 months
e) stricture or bladder neck contraction- a scar in the urinary tract
f) heart attack, stroke, blood clots, death
Back to Top
Laparoscopic Prostatectomy
1-2 hospital days, faster recovery
has not been preformed as long as Radical Prostatectomy
still trying to prove that it is equal or better surgery than Rad Prostatectomy
same potential side effects as Open Radical Prostatectomy
not preformed at all institutions
if having difficulties during surgery may have to change to open Radical Prostatectomy
Back to Top
Brachytherapy
Seeds (low dose radiation) needles placed between the scrotum and the rectum
Iodine-125- half life 2 months, Paladium-103- half life 17 days
HDR (high dose radiation) overnight stay where needles are placed into the prostate and radiation is delivered through them on the 1st post op day and then they are removed
Side effects: frequency and urgency of the bladder and bowels,
difficulty to empty bladder, retention at 6 months-1%
oral medications post op- Flomax/Hytrin/Cardura
Impotence: if no problems pre-op- difficulty maintaining erections post op
if problems maintaining erections pre-op- impotence post op
meds given- Viagra/Levitra/Cialis
Late impotence (3-5 years)- 50%
Fullness in the perineum- use an inflatable or sponge doughnut to sit upon
heart attack, stroke, blood clots, death- rare
Back to Top
Cryotherapy
Usually an overnight stay
8 and 10 year data same as surgery for cure, unknown 15 year data, may be repeated if not completely successful
6-8- needles placed between the scrotum and the rectum with an ultrasound in the rectum, use Argon to freeze to –40 and Helium to heat, a warming catheter is in the urethra to maintain the urethra
Generally a foley catheter in the urethra or a suprapubic tube for 1-2 weeks
Urinary urgency and urge incontinence generally resolve in a month
Long term urinary flow and urinary symptoms are generally the same or improved postop
Bladder spasms generally resolve in 12 hours
By the 1st post op day, pain is usually mild needing Tylenol or Advil
Fullness in the perineum- use an inflatable or sponge doughnut to sit upon
Scrotal and penile edema can be severe in 25%- resolves in 2-6 weeks
Rx Jockstrap/ice
Impotence- 100%, 40% return of potency within 4 years
Heart attack, stroke, blood clots, death- rare
Recto-urinary fistula- 1%, incontinence – 1%
Urethral slough may cause cloudy urine, urinary frequency and urgency
Back to Top
Focal and Partial Cryotherapy
This is done to preserve potency
Controversial because Prostate Cancer is usually a multifocal disease
We leave live prostate tissue which could either contain live, undiagnosed prostate cancer, or may develop it in the future,
Less swelling, urinary urgency, retention
For patients considering watchful waiting, focal therapy is an option
Back to Top
External Beam Irradiation
Given 5 days a week for 6 weeks
3 gold seeds are placed in the same manner as the prostate biopsy to localize the prostate
during irradiation there is a loss of energy
frequency and urgency of the bladder and bowels may be short or long term
blood in the urine and bowel movements
impotence is possible long term
Back to Top
HIFU (high intensity focused ultrasound)
Not FDA approved, treatments take place in Mexico or the Dominican Republic
Results and side effects look promising, still not well known
Prostate must be < 50 cc’s
Urethral stricture
Impotence 28-100%, partial HIFU can be done to maintain potency
Incontinence 0-23%
Fistula <0.5-7.5%
Short term urinary retention 80%
Frequency, urgency, difficulty voiding resolve in 2 months
Back to Top
Hormone Therapy
Lupron / Goserlin – injections every 1 or 3 or 4 months or a 1 year implant
Flutamide / Casodez / Nilandron pills
Proscar
Hormone therapy given to people with metastatic disease, elderly who are not candidates for curative therapy, brachytherapt/cryotherapy/HIFU to decrease the size of the prostate to improve the ability to treat it
Back to Top
Chemotherapy
This is reserved for hormonally resistant tumors and for late stage disease. It is generally given by Oncologists
Back to Top
|
|