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Cooled Transurethral Microwave Thermotherapy "Cooled" (TUMT)

Last Updated Monday, August 01, 2011 1:14:38 PM


The following information is provided to help you better understand what to expect from your Transurethral Microwave Thermotherapy treatment.

Cooled Transurethral Microwave Thermotherapy "Cooled" (TUMT) is a single, nonsurgical treatment that uses microwave heating to destroy excess tissue in the prostate. The heat is delivered to the prostate using a special catheter which is inserted in the urethra. The microwaves travel a short distance, which limits the heating to only the prostate. The special catheter also has a water circuit that cools and protects the urethra from heating and minimizes treatment discomfort. A rectal thermometer that measures three different temperature points is used to ensure proper heat propagation. In 6 to 16 weeks after the treatment, your body gradually reabsorbs the prosthetic tissue treated with the microwaves. As the obstructing portion of prostate tissue shrinks, the pressure on you urethra decreases and your symptoms of BPH will reduce.

If you have any questions about this information or any other aspect of the treatment please consult your urologist.

Treatment Instructions
The following guidelines are suggested for the day before and the day of your treatment. Your urologist may have additional instructions.

  • Reduce your fluid intake the day before treatment, but do not stop drinking fluids altogether.
  • Avoid coffee and other caffeinated beverages 48 hours prior to your procedure.
  • The night before treatment, eat a light meal instead of a big dinner.
  • Ask your urologist if you should not eat or drink from midnight the night before therapy.
  • Continue taking all prescription medications, except aspirin and blood thinners.
  • Give yourself an enema 1 - 3 hours before the procedure.

Please plan to arrive about 90 minutes before the procedure. This will allow enough time to prepare for the treatment, including pretreatment medication, as needed, to help you relax.

What to Expect During The Treatment
Cooled Transurethral Microwave Thermotherapy is generally performed on an outpatient basis, and the procedure itself usually takes about 30 minutes. Although you should allow two to four hours for your visit

You will be positioned on a treatment bed in a comfortable position. Depending on your individual circumstance you will receive pain medication and mild sedation or a light anesthetic before beginning the treatment. If you are sedated for the procedure you will need to have a ride home as you should not drive for 36 hours after your sedation.

First an anesthetic jelly will be delivered in the urethra for urethral anesthesia.

Your urologist will then insert the flexible catheter into your urethra and position it in the prostate. A soft balloon catheter will then be placed in the rectum to monitor rectal temperatures during the procedure

During the procedure you may experience some discomfort related to bladder spasms, the urge to void, or to a warm burning sensation in the abdomen and penis. Your physician will administer appropriate medicines to reduce these discomforts.

What to Expect After The Treatment
Although Cooled TUMT treatment does not require anesthesia or a hospital stay, you will need to arrange in advance for someone to drive you home. In the days following your treatment:

  • The tissue surrounding the urethra will be irritated after the procedure, so you will probably go home with a urinary catheter. This allows urine to drain from your bladder while any swelling subsides. Generally, the catheter is in place for 2 - 5 days. In some cases, a catheter may be needed for more than 7 days. Arrange a follow up visit with your urologist.
  • You may notice a small amount of blood in your urine-this is normal. If the bleeding seems excessive, call your urologist.
  • You may pass urine around the catheter instead of through it, this is normal.
  • Drink plenty of fluids. Try to drink a glass of water every 2 hours during the day, while the catheter is in place.
  • Avoid excessive activity while the catheter is in place.
  • Avoid lifting objects heavier than 10 pounds until the catheter is removed.
  • Take medication as prescribed by your physician.
  • In 6 to 16 weeks after the treatment, your body gradually reabsorbs the prosthetic tissue treated with the microwaves. As the obstructing portion of prostate tissue thrinks, the pressure on your urethra decreases and your symptoms of BPH will reduce.

El Camino Hospital
Los Gatos

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El Camino Hospital Los Gatos
Urology Services
815 Pollard Road
Los Gatos, CA 95032

Phone: 408-866-7331

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