the past decade, a number of minimally invasive techniques
have been developed to treat benign prostatic hyperplasia
(BPH). Transurethral ablation (TUNA®) of
the prostate is a minimally invasive treatment that
has fewer side effects than
other minimally invasive laser or microwave treatments.
It also compares favorably to TURP.
The TUNA® System delivers low-level radiofrequency
energy directly into hyperplasic prostate tissue while
preserving the urethra and adjacent structures from
harm. Twin needles deliver the RF energy, heating a
well-defined area of tissue to produce significant
coagulative necrosis. Adjustable shields covering the
needles are used to localize the lesions within the
prostate and protect the urethra from thermal damage.
The TUNA procedure can be performed in an office or
hospital outpatient center in less than 1 hour using
minimal anesthesia, some preparation is required prior
to the procedure. Catheterization is needed in about
40% of the patients--on average not more than 2 days.
Patients are able to return to most normal activities
within 24-48 hours. TUNA Therapy is associated with
few side effects and adverse events, including few
reports of sexual dysfunction. The TUNA procedure is
covered by Medicare in all 50 states as well as by
many private pay insurance companies.
Key Benefits of TUNA Therapy
Frequently Asked Questions
About TUNA Therapy
from BPH symptoms
performed in an office or outpatient setting
covered by Medicare and most other insurance
recovery (usually within 48 hours)
side effects and adverse events¹
How do I know if TUNA Therapy
is right for me?
If you are experiencing symptoms of BPH,
you should consult your physician. Your physician will
run a series of tests to determine if you indeed have
BPH. The decision of how to treat your BPH should then
be decided in conjunction with your physician.
How does the procedure work?
TUNA Therapy is a nonsurgical treatment. You will be
given a mild sedative to take orally, and local anesthesia
is delivered to the prostate via a small catheter inserted
into the urethra. Your physician will then insert the
TUNA device, which delivers low-level radio frequency
energy directly into the prostate. This energy shrinks
and destroys the prostate tissue. It then relieves
the constriction on the urethra and improves the symptoms
of BPH. After the procedure is complete, you will be
given fluids to drink and will be asked to remain in
the office until you urinate. In some cases your doctor
may elect to insert a catheter to ensure your comfort.
Will I have to spend the night in the hospital?
This procedure was designed for use in an office or
a hospital outpatient setting. Most men are able to
go home safely the same day.
Is the procedure safe in the office?
Yes, the procedure is safe. The instruments used in the procedure contain several
important safety features. For example, the instrument constantly measures temperature
in the treatment area and automatically shuts off if it detects that it is getting
How long will it be before I can return to my normal activities?
Most TUNA Therapy patients return to their normal activities quickly after the
procedure, while some patients may require a day or two.
Will there be any sexual side effects?
The ability to have normal and natural sexual relations is important at any age.
During the clinical study, less than 2% of TUNA Therapy patients experience impotence
and less than 1% of patients experience retrograde ejaculation.²
How soon can I expect my BPH symptoms to go away?
Generally you will see improvement in your symptoms two to six weeks after
the procedure and symptoms may continue to improve over two to three months.³
Individual results vary.
Is catheterization required after the procedure?
Catheterization is required as needed, usually 0-7 days.
What is the risk of incontinence?
There were no reported cases of incontinence in the clinical study.
Are there other side effects associated with TUNA Therapy?
Possible side effects from the TUNA procedure include
obstruction, bleeding, pain/discomfort, urgency, frequency
and urinary tract infection.
¹ Precision System User Guide
² Roehrborn, Issa, Bruskewitz, et al. Transurethral
Needle Ablation for BPH: 12-Month Results of a Prospective
Multicenter US Study, Urology 1998; 51:415-421.
³ Naslund. Transurethral Needle Ablation of the Prostate,
Urology 1997; 50:167-172.
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should not use the information on this web site for diagnosing or treating
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