Introduction
The
male organ or gland which produces a fluidly substance for carrying and
nourishing your sperms during your sex act, is called Prostate gland. Prostate
gland lies just below the urinary bladder and surround the urethra, which
delivers urine from bladder and genital secretions from internal genital
organs. It is very common occurrence for this gland to become enlarge in size
with your advancing age. The most common variety of this increase in size of
your prostate gland is known as Benign prostatic hyperplasia (BPH) or
hypertrophy.
It
is termed benign as it does not spreads even though its size increases like a
tumor. It will keep growing after you get older than 25 years of age. Not
infrequently it starts producing troublesome urinary symptoms after you reach
the age of 50. Your doctor will make rectal examination and inform you that you have developed
BPH(benign prostatic hyperplasia). It may be regarded as one of the effects of
male aging.
Incidence : It is
estimated that if you are 60 years old, your chances of developing BPH is 50%,
which rises to 90% as you age to 70 years.
Symptoms : Your
severely enlarged prostate will cause you urinary complains, as it will press
tight on your urethra. But sometimes, even if your prostate is not much
enlarged it can create all the following troublesome complaints confined to
urinary discharge:
·delayed urine stream: your urethra is clamped by enlarged prostate. That makes you strain for urine stream. Commonly termed hesitancy..
.
· Retention
of urine : At some stage ,due to
straining , bladder becomes
weak and urine is not completely emptied out and remains in your bladder.
· Blood in
urine : This is an indication that either you have infection or some stone formation in your bladder due to retained, concentrated urine.
- Dribbling of urine : you may loose control on your bladder as blockage by enlarged prostate results in left over urine to constantly irritate your bladder. You may constantly leak through urethra or fail to hold urine.
· Weakening of stream of urine : Due to pressure of your hypertrophied prostate on urethra, you fail to attain stream of urine.
.
· Frequency
of micturation at night : retention of urine in your bladder
irritates and cause more frequent desire to urinate during day and night.
The
major reason for your prostate to enlarge is a physiological or normal aging
phenomenon. It keeps growing even after 25 years, but when it produces pressure
symptoms on your urinary tract flow system, it is noticed and diagnosed as BPH.
Testes and BPH : It has been observed that men whose
testes have been removed do not develop benign prostatic hyperplasia. This just
indicates some stimulating effect of your testes on your BPH.(National Kidney
and Urologic information, US department of health.)
Hormones :
With aging you start to loose your male hormone, testosterone. But ,the
small amount of female hormone that is being produced now dominates. This
female hormone, estrogen is secreted
through out your life and is known to enhance the activity of substances
which promote cell growth in animal gland
Dihydrotestosterone : This hormone is produced by your
prostate and with age its concentration lowers . Interestingly, it has been
observed that, while men loose testosterone, some still show higher
concentration of DHT(dihydro-testosterone). This may result in your prostate
growth. Men who do not have high DHT, don’t develop benign prostatic hypertrophy.
Risk
factors
Age : Your age is the main risk
factor in development of enlarge prostate or benign prostattic
hypertrophy(hyperplasia). The more older you get , more likely to chance for you to suffer from BPH, and viz-a viz(other way round). At 50 years
you have 50% greater risk of BPH.
Family history :
Your susceptibility increases if any of your siblings(father or
brothers) have benign prostatic enlargement.
Heart diseases risk and BPH : your chances of getting an enlarged prostate
at later years of your life, if you have risk factor which play major role in
heart disease. They can be, over weight, high cholesterol levels, high blood
pressure, lower concentration of HDL( cardio-protective lipoproteins), diabetes
and disease of peripheral arteries.
Race : If you belong to white race, you are at
higher susceptibility of having benign prostatic hyperplasia with severe
symptoms. You have more on risk of being on surgeon’s list for prostate removal due to
BPH. Asians are least likely to have benign enlargement of prostate.
complications
Your
benign prostatic hyperplasia rarely causes any serious complication. When in
case you start having severe symptoms attributed to your BPH, they are from
pressure of your enlarged gland on urethra. These are entirely due to partial
or complete blockage of your urine flow.
Urinary retention : You
may develop sudden and complete inability to pass urine, called acute urinary
retention(AUR). This situation may cause severe pain at your bladder region(
pubic area), which needs emergency measures like passing urethral catheter or
supra-pubic needle at your bladder to empty your bladder and relieve the severe
pain. If your benign prostatic
hyperplasia is blocking the urethra partially, then slow retention of urine in
your bladder will complicate into CUR( chronic urinary retention).
Urinary tract infection :
The residual urine in your bladder may become seat of infection. This
may produce some worrying symptoms of blood in your urine, and painful micturation. It may cause
ascending infection to your kidneys, resulting in its functional disturbances
and damage. If untreated, this kidney
infection may cause waste products of protein metabolism to accumulate, which
can make your health to get worse.
Urolithiasis (stone in urinary
tract) : The retained urine in your
bladder because of BPH, is concentrated. The crystals of mineral present in
this residual urine clump to form bladder stones. The stone may travel down to
your urethra and block passage of urine. It is considered an emergency and
needs immediate bladder relief via catheter.
Kidney damage : benign
prostatic hyperplasia and its blocking effect on your urine outflow passage
secondarily causes damage to your kidneys. This is due to chronic(of long
standing) back pressure of residual urine, on kidney’s normal filtration process.
You
should keep this in mind, that, your benign prostatic hyperplasia will not
effect your sexual ability nor it will become cancerous( progress to cancer).
It will also not rreduce your fertility.
Pharmaceutical therapies
It has been
observed that you will consult your doctor not before you have urinary symptoms
start bothering you. Your health care provide will not only take into account
the extent and severity of your urinary complaints, but he will also have a
physical examination done to make an initial assessment of your prostatic
enlargement. He may advise test which will give a more confirm clue to diagnose
your BPH.
If your symptoms are
milder and not bothering(American Urological Association score 0-7), all you will
be advised is to make few changes in your daily routine, such as fluid intake,
self controlling bladder urge, and avoiding night hours of tea, coffee or any
liquid etc. you will not be given any medication or surgical options. All you
will be asked is to keep regular follow up to your doctor. In case your
symptoms get worse report.
If your symptoms
associated with BPH are not bothering you much (AUA score 8 or more) , your
doctor advises you watchful waiting with or without medication. If symptoms get
severe, specially night time visit or painful urination you will be given
options for either surgery or transurethral prostate ablation(removal).
In case you are unable to
pass urine, or have blood in urine or stone in your bladder you will be cured
of your symptoms by surgical means only.
Medicine
you will commonly be prescribed are following ;
Alpha (sympathetic)
blockers : They will make easier flow of your urine from
blocked urethra due to BPH. This effect is exerted by relaxation of smooth
muscle of your enlarged prostate in BPH and bladder neck, loosening its grip on
your urethra. They are given when you symptoms are moderate and bothersome. You
will feel much better when the alpha blocker is given to you in combination
with 5-alpha reductase. They give good result in improving symptoms in nearly
2-3 weeks. Commonly used alpha blockers are;
Alphazosin
Doxazosin
Silodozosin
Tamsulosin
Terazosin
Side
effects of these alpha blockers you may face are, dizziness, fatigue and
weakness, fainting due postural hypotension( lowering of BP after sudden
standing from sitting position), headcahes, nausea, and upward semen discharge
into bladder( retrograde ejaculation).
5-alpha reductase
inhibitors : The mode of action of these agents work
through inhibition of testosterone conversion to dihydrotestosterone(DHT). DHT
is shown in studies to be responsible for growth of your prostate. Hence by
this action 5-alpha reductase reduces the size of your benign prostatic hyperplasia to nearly
25% in about a year time. As mentioned their effects are better taken advantage
of when given with alpha receptor blocking medicines.
Following
are common drugs of this group ;
Finasteride
Dutasteride
Side
effects of 5-alpha reductase inhibitors may cause , loss of sexual desire(
libido), difficulties in ejaculation,
erection problems, and enlargement and tenderness of your breasts.
Tedalafil : This medicine has been in use for some
years for erectile dysfunction. It has been approved recently for your benign
prostatic hyperplasia. It is a phosphodiasterase-5(PDE5) inhibitor. Tedalafil
has proven efficacy in relieving or minimizing your BPH related urinary
symptoms. It is not prescribed with nitrites(nitroglycerine) or alpha blockers,
as sudden and severe drop of your blood pressure may occur.
Side
effects of tedalafil use are, headache, dyspepsia, back pain, muscular pain,
nasal congestion, flushing and painful limbs. Loss in hearing and visual
impairment have also been reported. In
such cases your doctor should immediately be informed for further advise.