Illnesses & Conditions
Information on diseases and health concerns, including symptoms, treatment options, and prevention.

Transurethral microwave therapy (TUMT) for benign prostatic hyperplasia

Surgery Overview

In transurethral microwave therapy (TUMT), an instrument (called an antenna) that sends out microwave energy is inserted through the urethra to a location inside the prostate. Microwave energy is then used to heat the inside of the prostate. Cooling fluid is circulated around the microwave antenna to prevent heat from damaging the wall of the urethra. To prevent the temperature from getting too high outside the prostate, a temperature sensor is inserted into the man's rectum during the procedure. If the temperature in the rectum increases too much, the treatment is turned off automatically until the temperature goes back down.

The temperature becomes high enough inside the prostate to kill some of the tissue. As this part of the prostate heals, it shrinks, reducing the blockage of urine flow.

This treatment is done in a single session. It usually does not require an overnight stay in the hospital. A general or spinal anesthetic is needed during the procedure.

Microwave therapy is also known as cooled thermal therapy or by the name of the equipment (Targis or Prostatron).

© 1995-2009, Healthwise, Incorporated, P.O. Box 1989, Boise, ID 83701. ALL RIGHTS RESERVED.