Treatment
Men who have BPH with symptoms usually need some kind of treatment at some time. However, a number of recent studies have questioned the need for early treatment when the gland is just mildly enlarged. These studies report that early treatment may not be needed because the symptoms of BPH clear up without treatment in as many as one-third of all mild cases. Instead of immediate treatment, they suggest regular checkups to watch for early problems. If the condition begins to pose a danger to the patient’s health or causes a major inconvenience to him, treatment is usually recommended.
Since BPH may cause urinary tract infections, a doctor will usually clear up any infection with antibiotics before treating the BPH itself. Although the need for treatment is not usually urgent, doctors generally advise going ahead with treatment once the problems become bothersome or present a health risk.
The following section describes the types of treatment that are most commonly used for BPH.
Drug Treatment
Over the years, researchers have tried to find a way to shrink or at least stop the growth of the prostate without using surgery. The Food and Drug Administration (FDA) has approved four drugs to relieve common symptoms associated with an enlarged prostate.
Finasteride (marketed under the name Proscar), FDA-approved in 1992, inhibits production of the hormone DHT, which is involved with prostate enlargement. Its use can actually shrink the prostate in some men.
FDA also approved the drugs terazosin (marketed as Hytrin) in 1993, doxazosin (marketed as Cardura) in 1995, and tamsulosin (marketed as Flomax) in 1997 for the treatment of BPH. All three drugs act by relaxing the smooth muscle of the prostate and bladder neck to improve urine flow and to reduce bladder outlet obstruction. Terazosin, doxazosin, and tamsulosin belong to the class of drugs known as alpha blockers. Terazosin and doxazosin were developed first to treat high blood pressure. Tamsulosin is the first alpha blocker developed specifically to treat BPH.
NIDDK’s Medical Therapy of Prostatic Symptoms (MTOPS) Trial recently found that using finasteride and doxazosin together is more effective than either drug alone to relieve symptoms and prevent BPH progression. The two-drug regimen reduced the risk of BPH progression by 67 percent, compared to 39 percent for doxazosin alone and 34 percent for finasteride alone.
Nonsurgical Treatment
Because drug treatment is not effective in all cases, researchers in recent years have developed a number of procedures that relieve BPH symptoms but are less invasive than surgery.
Transurethral microwave procedures. In May 1996, FDA approved the Prostatron, a device that uses microwaves to heat and destroy excess prostate tissue. In the procedure called transurethral microwave thermotherapy (TUMT), the Prostatron sends computer-regulated microwaves through a catheter to heat selected portions of the prostate to at least 111 degrees Fahrenheit. A cooling system protects the urinary tract during the procedure.
A similar microwave device, the Targis System, received FDA approval in September 1997. Like the Prostatron, the Targis System delivers microwaves to destroy selected portions of the prostate and uses a cooling system to protect the urethra. A heat-sensing device inserted in the rectum helps monitor the therapy.
Both procedures take about 1 hour and can be performed on an outpatient basis without general anesthesia. Neither procedure has been reported to lead to impotence or incontinence.
While microwave therapy does not cure BPH, it reduces urinary frequency, urgency, straining, and intermittent flow. It does not correct the problem of incomplete emptying of the bladder. Ongoing research will determine any long-term effects of microwave therapy and who might benefit most from this therapy.
Transurethral needle ablation. In October 1996, FDA approved Vidamed’s minimally invasive Transurethral Needle Ablation (TUNA) System for the treatment of BPH.
The TUNA System delivers low-level radiofrequency energy through twin needles to burn away a well-defined region of the enlarged prostate. Shields protect the urethra from heat damage. The TUNA System improves urine flow and relieves symptoms with fewer side effects when compared with transurethral resection of the prostate (TURP). No incontinence or impotence has been observed.
Surgical Treatment
Most doctors recommend removal of the enlarged part of the prostate as the best long-term solution for patients with BPH. With surgery for BPH, only the enlarged tissue that is pressing against the urethra is removed; the rest of the inside tissue and the outside capsule are left intact. Surgery usually relieves the obstruction and incomplete emptying caused by BPH. The following section describes the types of surgery that are used.
Transurethral surgery. In this type of surgery, no external incision is needed. After giving anesthesia, the surgeon reaches the prostate by inserting an instrument through the urethra.
A procedure called TURP (transurethral resection of the prostate) is used for 90 percent of all prostate surgeries done for BPH. With TURP, an instrument called a resectoscope is inserted through the penis. The resectoscope, which is about 12 inches long and 1/2 inch in diameter, contains a light, valves for controlling irrigating fluid, and an electrical loop that cuts tissue and seals blood vessels.
During the 90-minute operation, the surgeon uses the resectoscope’s wire loop to remove the obstructing tissue one piece at a time. The pieces of tissue are carried by the fluid into the bladder and then flushed out at the end of the operation.
Most doctors suggest using TURP whenever possible. Transurethral procedures are less traumatic than open forms of surgery and require a shorter recovery period.
Another surgical procedure is called transurethral incision of the prostate (TUIP). Instead of removing tissue, as with TURP, this procedure widens the urethra by making a few small cuts in the bladder neck, where the urethra joins the bladder, and in the prostate gland itself. Although some people believe that TUIP gives the same relief as TURP with less risk of side effects such as retrograde ejaculation, its advantages and long-term side effects have not been clearly established.
Open surgery. In the few cases when a transurethral procedure cannot be used, open surgery, which requires an external incision, may be used. Open surgery is often done when the gland is greatly enlarged, when there are complicating factors, or when the bladder has been damaged and needs to be repaired. The location of the enlargement within the gland and the patient’s general health help the surgeon decide which of the three open procedures to use.
With all the open procedures, anesthesia is given and an incision is made. Once the surgeon reaches the prostate capsule, he scoops out the enlarged tissue from inside the gland.
Laser surgery. In March 1996, FDA approved a surgical procedure that employs side-firing laser fibers and Nd: YAG lasers to vaporize obstructing prostate tissue. The doctor passes the laser fiber through the urethra into the prostate using a cystoscope and then delivers several bursts of energy lasting 30 to 60 seconds. The laser energy destroys prostate tissue and causes shrinkage. Like TURP, laser surgery requires anesthesia and a hospital stay. One advantage of laser surgery over TURP is that laser surgery causes little blood loss. Laser surgery also allows for a quicker recovery time. But laser surgery may not be effective on larger prostates. The long-term effectiveness of laser surgery is not known.
Your Recovery After Surgery in the Hospital
If you have surgery, you’ll probably stay in the hospital from 3 to 10 days depending on the type of surgery you had and how quickly you recover.
Foley catheter
At the end of surgery, a special catheter is inserted through the opening of the penis to drain urine from the bladder into a collection bag. Called a Foley catheter, this device has a water-filled balloon on the end that is placed in the bladder, which keeps it in place.
This catheter is usually left in place for several days. Sometimes, the catheter causes recurring painful bladder spasms the day after surgery. These may be difficult to control, but they will eventually disappear.
You may also be given antibiotics while you are in the hospital. Many doctors start giving this medicine before or soon after surgery to prevent infection. However, some recent studies suggest that antibiotics may not be needed in every case, and your doctor may prefer to wait until an infection is present to give them.
After surgery, you will probably notice some blood or clots in your urine as the wound starts to heal. If your bladder is being irrigated (flushed with water), you may notice that your urine becomes red once the irrigation is stopped. Some bleeding is normal, and it should clear up by the time you leave the hospital. During your recovery, it is important to drink a lot of water (up to 8 cups a day) to help flush out the bladder and speed healing.