How is a transurethral microwave thermotherapy (TUMT) performed?

Marc B. Garnick, MD
Hematology & Oncology
In the treatment of benign prostatic hyperplasia (BPH), transurethral microwave thermotherapy (TUMT) is one of a group of techniques known as "heat therapies," which use heat to destroy prostate tissue, achieving results similar to transurethral resection of the prostate (TURP), an incision-free surgical procedure that cuts away excess prostate tissue with an electrical loop. In TUMT, the doctor guides a thin catheter carrying a miniature microwave generator through the penis to the prostate. There, microwaves destroy some of the prostate tissue and relieve pressure on the urethra. A cooling jacket around the generator protects the urethra. The procedure takes about an hour and can be performed on an outpatient basis.

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