Transurethral microwave therapy (TUMT) is a procedure to treat
symptoms of prostate enlargement (benign prostatic hyperplasia [BPH]). The
procedure uses high temperature to kill tissue inside the prostate.
An instrument called an antenna is inserted into
the urethra and guided to a location inside the prostate. The antenna sends out
microwave energy to heat the inside of the prostate. Cooling fluid circulates
around the microwave antenna to protect the wall of the urethra from heat
As the treated tissue 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 regional (spinal)
anesthetic is needed during the procedure.
This therapy is also known as cooled thermal therapy or by the name
of the equipment that is used.
E. Gregory Thompson, MD - Internal Medicine & J. Curtis Nickel, MD, FRCSC - Urology
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