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Typically BHP like Diabetes II is the disease of old age, Probably half of men over 65 experience some symptoms. Kind of free gift that comes with the eligibility for Social Security ;-) For heavily affected this disease represent dramatic lowering of quality of life.
Like Diabet II some affects can be achieved by changing life style and paying more attention to your health. Some topical medicines like certain herbs produce some effect (or at least help psychologically; placebo effect is real and should not be underestimated. In this case it is highly positive as the decease is very unpleasant).
There are several good books on th subject that you buy on Amazon for self-education. That demystify the disease adn also serve as a kind of treatment: knowledge is power.
The first step is to determine the severity of symptoms and understand that this is the disease that strike most men, who manage to live more then 70 years sooner or later. Previously this disease was far lesser problem as lifespan of most men was shorter.The International Prostate Symptom Score (IPSS) is an 8 question (7 symptom questions + 1 quality of life question) written screening tool used to screen for, rapidly diagnose, track the symptoms of, and suggest management of the symptoms of the disease benign prostatic hyperplasia (BPH). Created in 1992 by the American Urological Association, it originally lacked the 8th QOL question, hence its original name: the American Urological Association symptom score (AUA-7).
The 7 symptoms questions include feeling of incomplete bladder emptying, frequency, intermittency, urgency, weak stream, straining and nocturia, each referring to during the last month, and each involving assignment of a score from 1 to 5 for a total of maximum 35 points. The 8th question of quality of life is assigned a score of 1 to 6.
The IPSS was designed to be self-administered by the patient, with speed and ease in mind. Hence, it can be used in both urology clinics as well as the clinics of primary care physicians (i.e. by general practitioners) for the diagnosis of BPH. Additionally, the IPSS can be performed multiple times to compare the progression of symptoms and their severity over months and years.
In addition to diagnosis and charting disease progression, the IPSS is effective in helping to determine treatment for patients.
From Wikipedia, the free encyclopedia
|Benign prostatic hyperplasia|
Diagram illustrating normal prostate (left) and benign prostatic hyperplasia (right).
|Classification and external resources|
|Patient UK||Benign prostatic hyperplasia|
Benign prostatic hyperplasia (BPH), also called benign enlargement of the prostate (BEP), adenofibromyomatous hyperplasia and benign prostatic hypertrophy (technically incorrect usage), is a benign increase in size of the prostate.
BPH involves hyperplasia of prostatic stromal and epithelial cells, resulting in the formation of large, fairly discrete nodules in the transition zone of the prostate. When sufficiently large, the nodules impinge on the urethra and increase resistance to flow of urine from the bladder. This is commonly referred to as "obstruction," although the urethral lumen is no less patent, only compressed. Resistance to urine flow requires the bladder to work harder during voiding, possibly leading to progressive hypertrophy, instability, or weakness (atony) of the bladder muscle. Although prostate specific antigen levels may be elevated in these patients because of increased organ volume and inflammation due to urinary tract infections, BPH does not lead to cancer or increase the risk of cancer.
BPH involves hyperplasia (an increase in the number of cells) rather than hypertrophy (a growth in the size of individual cells), but the two terms are often used interchangeably, even amongst urologists.
Adenomatous prostatic growth is believed to begin at approximately age 30 years. An estimated 50% of men have histologic evidence of BPH by age 50 years and 75% by age 80 years; in 4050% of these men, BPH becomes clinically significant. BPH was one of the ten most prominent and costly diseases in men older than 50 years of age in a study in the United States.
Benign prostatic hyperplasia symptoms are classified as storage or voiding.
Lower urinary tract symptoms
Complications of bladder outlet obstruction
Features of uremia
Storage symptoms include urinary frequency, urgency (compelling need to void that cannot be deferred), urgency incontinence, and voiding at night (nocturia). Urinary incontinence may occur, and nocturia may contribute to insomnia.
Voiding symptoms include urinary hesitancy (difficulty initiating the stream), straining to void, weak or intermittent stream (starts and stops), and incomplete bladder emptying. Pain and dysuria are usually not present. These storage and voiding symptoms are evaluated using the International Prostate Symptom Score (IPSS) questionnaire, designed to assess the severity of BPH.
BPH can be a progressive disease, especially if left untreated. Incomplete voiding results in stasis of bacteria in the bladder residue and an increased risk of urinary tract infection. Urinary bladder stones are formed from the crystallization of salts in the residual urine. Urinary retention, termed acute or chronic, is another form of progression. Acute urinary retention is the inability to void, while in chronic urinary retention the residual urinary volume gradually increases, and the bladder distends. This can result in bladder hypotonia. Some patients who suffer from chronic urinary retention may eventually progress to renal failure, a condition termed obstructive uropathy.
Most experts consider androgens (testosterone and related hormones) to play a permissive role in the development of BPH. This means that androgens have to be present for BPH to occur, but do not necessarily directly cause the condition. This is supported by evidence suggesting that castrated boys do not develop BPH when they age. In an unusual study of 26 eunuchs from the palace of the Qing dynasty still living in Beijing in 1960, the prostate was impalpable (could not be felt) in 81%. The average time since castration was 54 years (range, 4165 years). On the other hand, some studies suggest that administering exogenous testosterone is not associated with a significant increase in the risk of BPH symptoms, so the role of testosterone in prostate cancer and BPH is still unclear. Further randomized controlled trials with more participants are needed to quantify any risk of giving exogenous testosterone. Dihydrotestosterone (DHT), a metabolite of testosterone, is a critical mediator of prostatic growth. DHT is synthesized in the prostate from circulating testosterone by the action of the enzyme 5α-reductase, type 2. This enzyme is localized principally in the stromal cells; hence, those cells are the main site for the synthesis of DHT.
DHT can act in an autocrine fashion on the stromal cells or in paracrine fashion by diffusing into nearby epithelial cells. In both of these cell types, DHT binds to nuclear androgen receptors and signals the transcription of growth factors that are mitogenic to the epithelial and stromal cells. DHT is 10 times more potent than testosterone because it dissociates from the androgen receptor more slowly. The importance of DHT in causing nodular hyperplasia is supported by clinical observations in which an inhibitor of 5α-reductase such as finasteride is given to men with this condition. Therapy with a 5α-reductase inhibitor markedly reduces the DHT content of the prostate and, in turn, reduces prostate volume and BPH symptoms.
Testosterone promotes prostate cell proliferation, but relatively low levels of serum testosterone are found in patients with BPH. One small study has shown that medical castration lowers the serum and prostate hormone levels unevenly, having less effect on testosterone and dihydrotestosterone levels in the prostate.
While there is some evidence that estrogen may play a role in the etiology of BPH, this effect appears to be mediated mainly through local conversion of androgens to estrogen in the prostate tissue rather than a direct effect of estrogen itself. In canine in vivo studies castration, which significantly reduced androgen levels but left estrogen levels unchanged, caused significant atrophy of the prostate. Studies looking for a correlation between prostatic hyperplasia and serum estrogen levels in humans have generally shown none.
In 2008, Gat et al. published evidence that BPH is caused by failure in the spermatic venous drainage system resulting in increased hydrostatic pressure and local testosterone levels elevated more than 100 fold above serum levels. If confirmed, this mechanism explains why serum androgen levels do not seem to correlate with BPH and why giving exogenous testosterone would not make much difference. This also has implications for treatment (see Minimally invasive therapies below).
Studies indicate that dietary patterns may affect development of BPH, but further research is needed to clarify any important relationship. Studies from China suggest that greater protein intake may be a factor in development of BPH. Men older than 60 years in rural areas had very low rates of clinical BPH, while men living in cities and consuming more animal protein had a higher incidence of BPH. On the other hand, a study in Japanese-American men found a strong association with alcohol intake, but a weak association with beef intake. In a large prospective cohort study in the US (the Health Professionals Follow-up Study), investigators reported modest associations between BPH (men with strong symptoms of BPH or surgically confirmed BPH) and total energy and protein, but not fat intake. There is also epidemiological evidence linking BPH with metabolic syndrome (concurrent obesity, impaired glucose metabolism and diabetes, hypertriglyceridemia, low-density cholesterol and hypertension).
Both the glandular epithelial cells and the stromal cells (including muscular fibers) undergo hyperplasia in BPH.:694 Most sources agree that of the two tissues, stromal hyperplasia predominates, but the exact ratio of the two is unclear.:694
Anatomically, BPH is most strongly associated with the posterior urethral glands (PUG) and transitional zone (TZ) of the prostate. The earliest microscopic signs of BPH usually begin between the age of 30 and 50 years old in the PUG, which are posterior to the proximal urethra.:694 In BPH, the majority of growth occurs in the TZ.:694 In addition to these two classic areas, the peripheral zone (PZ) of the prostate is also involved to a lesser extent.:695 Prostatic cancer typically occurs in the PZ. However, BPH nodules, usually from the TZ are often biopsied anyway to rule out cancer in the TZ.:695 However, cancers of the prostate most frequently occur in the PZ rather than the TZ, thus, chippings taken from the PZ are of limited use.
Urinary bladder (black butterfly-like shape) and hyperplastic prostate (BPH) visualized by sonography
Micrograph showing nodular hyperplasia (left off center) of the prostate from a transurethral resection of the prostate (TURP). H&E stain.
Microscopic examination of different types of prostate tissues (stained with immunohistochemical techniques): A. Normal (non-neoplastic) prostatic tissue (NNT). B. Benign prostatic hyperplasia. C. High-grade prostatic intraepithelial neoplasia (PIN). D. Prostatic adenocarcinoma (PCA).
Prostate with a large median lobe bulging upwards. A metal instrument is placed in the urethra (which passes through the prostate). This specimen was almost 7 centimeters long with a volume of about 60 cubic centimetres on transrectal ultrasound and was removed during a Hryntschak procedure or transvesical prostatectomy (removal of the prostate through the bladder) for benign prostatic hyperplasia.
Rectal examination (palpation of the prostate through the rectum) may reveal a markedly enlarged prostate, usually affecting the middle lobe.
Often, blood tests are performed to rule out prostatic malignancy: elevated prostate specific antigen (PSA) levels needs further investigations such as reinterpretation of PSA results, in terms of PSA density and PSA free percentage, rectal examination and transrectal ultrasonography. These combined measures can provide early detection.
Ultrasound examination of the testicles, prostate, and kidneys is often performed, again to rule out malignancy and hydronephrosis.
Screening and diagnostic procedures for BPH are similar to those used for prostate cancer. Some signs to look for include:
Lifestyle alterations to address the symptoms of BPH include decreasing fluid intake before bedtime, moderating the consumption of alcohol and caffeine-containing products, and following a timed voiding schedule. Patients can also attempt to avoid products and medications that may exacerbate symptoms of BPH, including antihistamines, diuretics, and decongestants, opiates, and tricyclic antidepressants, however this should be done with input from a medical professional.
Another influencing factor is the position patients used when urinating, in particular sitting down. A meta-analysis found that, for elderly males with lower urinary tract symptoms (LUTS):
This urodynamic profile is related to a lower risk of urologic complications, such as cystitis and bladder stones.
The two main medications for management of BPH are alpha blockers and 5α-reductase inhibitors.
Alpha blockers are the most common choice for initial therapy. They include doxazosin, terazosin, alfuzosin, tamsulosin, and silodosin. They have a small to moderate benefit. All five are equally effective but have slightly different side effect profiles. The older drugs phenoxybenzamine and prazosin are not recommended. Alpha blockers relax smooth muscle in the prostate and the bladder neck, thus decreasing the blockage of urine flow. Common side effects of alpha blockers include orthostatic hypotension, (a head rush or dizzy spell when standing up or stretching), ejaculation changes, headaches, nasal congestion, and weakness. Non-selective alpha blockers such as terazosin and doxazosin may also require titration as they can cause syncope if the dose is too high. Side effects can also include erectile dysfunction.
The 5α-reductase inhibitors finasteride and dutasteride are another treatment option. These medications inhibit 5a-reductase, which in turn inhibits production of DHT, a hormone responsible for enlarging the prostate. Effects may take longer to appear than alpha blockers, but they persist for many years. When used together with alpha blockers, a reduction of BPH progression to acute urinary retention and surgery has been noted in patients with larger prostates. Side effects include decreased libido and ejaculatory or erectile dysfunction.
Antimuscarinics such as tolterodine may also be used, especially in combination with alpha blockers. They act by decreasing acetylcholine effects on the smooth muscle of the bladder, thus helping control symptoms of an overactive bladder.
Sildenafil citrate shows some symptomatic relief, suggesting a possible common cause with erectile dysfunction. Tadalafil was considered then rejected by NICE in the UK for the treatment of symptoms associated with BPH. In 2011, the U.S. Food and Drug Administration approved tadalafil to treat the signs and symptoms of benign prostatic hyperplasia, and for the treatment of BPH and erectile dysfunction (ED), when the conditions occur simultaneously.
Intermittent urinary catheterization is used to relieve the bladder in patients with urinary retention. Catheterization has been practiced since antiquity, but was first mentioned in modern medicine in 1880 and then reintroduced by Lapides and colleagues in 1972. Self-catheterization is an option in BPH when the bladder is difficult or impossible to completely empty. Urinary tract infection is the most common complication of intermittent catheterization. Several techniques and types of catheter are available, including sterile (single-use) and clean (multiple use) catheters, but none is superior to others in reducing the incidence of urinary tract infection based on current information.
Although medication is often prescribed as the first treatment option, many patients do not achieve success with pharmacotherapy. They may not achieve sustained improvement in symptoms or may stop taking the medication because of side-effects. There are options for treatment in a urologist's office before proceeding to surgery. The two most common types of office-based therapies are transurethral microwave thermotherapy (TUMT) and transurethral needle ablation (TUNA). Both of these procedures rely on delivering enough energy to create sufficient heat to cause cell death (necrosis) in the prostate. The goal is to cause enough necrosis so that, when the dead tissue is reabsorbed by the body, the prostate shrinks, relieving the obstruction of the urethra. These procedures are typically performed with local anesthesia, and the patient returns home the same day. Some urologists have studied and published long-term data on the outcomes of these procedures, with data out to five years. The most recent American Urological Association (AUA) Guidelines for the Treatment of BPH in 2003 lists minimally invasive therapies including TUMT and TUNA as acceptable alternatives for certain patients with BPH.
Transurethral microwave therapy (TUMT) was originally approved by the United States Food and Drug Administration (FDA) in 1996, with the first generation system by EDAP Technomed. Since 1996, other companies have received FDA approval for TUMT devices, including Urologix, Dornier, Thermatrix, Celsion, and Prostalund. Multiple clinical studies have been published on TUMT. The general principle underlying all the devices is that a microwave antenna that resides in a urethral catheter is placed in the intraprostatic area of the urethra. The catheter is connected to a control box outside of the patient's body and is energized to emit microwave radiation into the prostate to heat the tissue and cause necrosis. It is a one-time treatment that takes approximately 30 minutes to 1 hour, depending on the system used. It takes approximately 4 to 6 weeks for the damaged tissue to be reabsorbed into the patient's body. Some of the devices incorporate circulating coolant through the treatment area with the intent of preserving the urethra while the microwave energy heats the prostatic tissue surrounding the urethra.
Transurethral needle ablation (TUNA) operates with a different type of energy, radio frequency (RF) energy, but is designed along the same premise as TUMT devices, that the heat the device generates will cause necrosis of the prostatic tissue and shrink the prostate. The TUNA device is inserted into the urethra using a rigid scope much like a cystoscope. The energy is delivered into the prostate using two needles that emerge from the sides of the device, through the urethral wall and into the prostate. The needle-based ablation devices are very effective at heating a localized area to a high enough temperature to cause necrosis. The treatment is typically performed in one session, but may require multiple sticks of the needles depending on the size of the prostate.
In 2009, Israeli physicians reported the discovery that BPH develops as a result of an impairment in the venous drainage system of the testicles and prostate in elderly males. As a result, the prostate is exposed to high concentrations of testosterone. They reported statistically significant declines in prostate volume and nocturia using an interventional radiological technique that involves percutaneous venography and sclerotherapy of the internal spermatic vein network, including associated venous bypasses and retroperitoneal collaterals. The nonsurgical method, known as "super-selective intraprostatic androgen deprivation therapy" reversed the size of the gland and improved symptoms without the potential side effects and complications of classic surgery.
If medical treatment fails, and the patient elects not to try office-based therapies or the physician determines the patient is a better candidate for transurethral resection of prostate (TURP), surgery may need to be performed. In general, TURP is still considered the gold standard of prostate interventions for patients who require a procedure. This involves removing (part of) the prostate through the urethra. However after this endoscopic surgery the ejaculations are dry and the person becomes sterile. For a male who wishes to father a child this is not the procedure of choice. Over the past couple of decades efforts to find newer surgical methods have resulted in newer approaches and different types of energies being used to treat the enlarged gland. However some of the newer methods for reducing the size of an enlarged prostate, have not been around long enough to fully establish their safety or side-effects. These include various methods to destroy or remove part of the excess tissue while trying to avoid damaging what remains. Transurethral electrovaporization of the prostate (TVP), laser TURP, visual laser ablation (VLAP), ethanol injection, and others are studied as alternatives.
Newer techniques involving lasers in urology have emerged in the last 510 years, starting with the VLAP technique involving the Nd:YAG laser with contact on the prostatic tissue. A similar technology called Photoselective Vaporization of the Prostate (PVP) with the GreenLight (KTP or LBO crystal) laser have emerged very recently. This procedure involves a high-power 180-watt 532 nm wavelength laser with a 650-micrometre laser fiber inserted into the prostate. This fiber has an internal reflection with a 70-degree deflecting angle. It is used to vaporize the tissue to the prostatic capsule. GreenLight 532 nm lasers target haemoglobin as the chromophore and typically have a penetration depth of 0.8mm (two times deeper than holmium).
Another procedure termed Holmium Laser Ablation of the Prostate (HoLAP) has also been gaining acceptance around the world. Like KTP, the delivery device for HoLAP procedures is a 550 um disposable side-firing fiber that directs the beam from a high-power 100-watt laser at a 70-degree angle from the fiber axis. The holmium wavelength is 2,140 nm, which falls within the infrared portion of the spectrum and is invisible to the naked eye. Whereas GreenLight relies on haemoglobin as a chromophore, water within the target tissue is the chromophore for Holmium lasers. The penetration depth of Holmium lasers is <0.4 mm, avoiding complications associated with tissue necrosis often found with the deeper penetration and lower peak powers of Nd:YAG lasers used in the 1990s.
HoLEP, Holmium Laser Enucleation of the Prostate, is another Holmium laser procedure reported to carry fewer risks compared with either TURP or open prostatectomy. HoLEP is largely similar to the HoLAP procedure; the main difference is that this procedure is typically performed on larger prostates. Instead of ablating the tissue, the laser cuts a portion of the prostate, which is then cut into smaller pieces and flushed with irrigation fluid. As with the HoLAP procedure, there is little bleeding during or after the procedure.
Both wavelengths, GreenLight and Holmium, ablate approximately one to two grams of tissue per minute.
Post surgery care often involves placement of a Foley catheter or a temporary prostatic stent to permit healing and allow urine to drain from the bladder.
In summary, the surgical techniques used are:
Herbal remedies are a commonly used treatment, and several are approved in European countries, and available in the USA. Saw palmetto extract from Serenoa repens is one of the most commonly used and studied, having showed some promise in early studies. Later trials of higher methodological quality have shown it to be no better than placebo in both symptom relief and decreasing prostate size. Other herbal medicines include beta-sitosterol from Hypoxis rooperi (African star grass) and pygeum (extracted from the bark of Prunus africana), while there is less substantial support for the efficacy of pumpkin seed (Cucurbita pepo) and stinging nettle (Urtica dioica) root.
Disability-adjusted life year for benign prostatic hyperplasia per 100,000 inhabitants in 2004.
no dataless than 20
more than 100
Globally, benign prostatic hyperplasia affects about 210 million males as of 2010 (6% of the population).
The prostate gets larger in most men as they get older. For a symptom-free man of 46 years, the risk
of developing BPH over the next 30 years is 45%.
rates increase from 3 cases per 1000 man-years at age 4549 years, to 38 cases per 1000 man-years by
the age of 7579 years. While the
prevalence rate is 2.7% for
men aged 4549, it increases to 24% by the age of 80 years.
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