What you can expect

By Mayo Clinic Staff

TUNA takes less than an hour. It's usually done as an outpatient procedure, which means you will go home the day of the procedure.

You'll be given a local anesthetic to numb the prostate area. The anesthetic may be inserted through the tip of your penis, or given in a shot via your rectum or in the area between your scrotum and anus (perineum). You may also have intravenous (IV) sedation. With IV sedation, you'll be drowsy but remain conscious during the procedure.

In some cases, spinal anesthesia or general anesthesia is used. With spinal anesthesia, you're numb from the waist down. With general anesthesia, you are unconscious during the procedure.

During the procedure

A specially adapted visual instrument (cystoscope) is passed through the opening of your penis into your urethra. Your doctor will insert the cystoscope until it reaches the prostate area.

When the cystoscope is in place, your doctor will insert small needles into your prostate through the end of the cystoscope. Then, radio waves pass through them to heat and destroy prostate tissue blocking urine flow. You may feel a little pain or discomfort.

After the procedure

After TUNA, you'll have a catheter that extends through the tip of penis into your bladder. This allows you to pass urine until you can urinate on your own.

Side effects of TUNA can include:

  • Blood in your urine (hematuria). This shouldn't last for more than a few days after the procedure.
  • Irritating urinary symptoms. You may experience painful urination, difficulty urinating, or an urgent or frequent need to urinate. These symptoms usually improve within a week or so.
  • Temporary difficulty urinating or urinary retention. A number of men have trouble urinating (urinary retention) after the procedure. If this happens, you may need to have a catheter in place for a few days. In some cases, a catheter is needed for a few weeks or longer.
  • Urinary tract infection. Urinary tract infections are a possible complication after any enlarged prostate procedure. An infection is increasingly likely to occur the longer you have a catheter in place and may require antibiotics or other treatment. Some men have recurring urinary tract infections after TUNA.
Jul. 23, 2013