What is a biopsy of the prostate ( prostate ) ?

Contents:

1. When appointed?

2. Contraindications

3. How to prepare?

prostate biopsy is widely used throughout the world and is the most effective method for diagnosing prostate cancer.This method provides a histological verification of diagnosis and at the same time allows us to estimate the prevalence of tumor, the nature of its growth and the degree of differentiation, which allows to determine its stage and select the appropriate treatment.

Previously prostate biopsy was carried out under the control of the finger, it is now used ultrasonic testing, making the procedure safer.Biopsy through the rectum wall special gun biopsy and biopsy needles.When stenosis anus or after resection of the rectum, when you can not enter the tool in the usual way, using perineal access.

basic principle biopsy - consistency.This means that samples taken from different areas of the prostate, and not only the suspicious area.Specimen of the 18/12/10 points increases the cancer detection rate by one-thi

rd.In recent years gained popularity biopsy of the prostate of 24 points.Number of sampling points required is determined based on the volume of the gland itself and the PSA level.

To perform a prostate biopsy the patient should take a position lying on its side and pull up his legs to his chest or else take the lithotomy position.The procedure is performed under anesthesia, it uses a gel with lidocaine or periprostatic injection of local anesthetic.Typically biomaterial sampling needle enters the patient's tissue to a depth of 20-22 mm.This yields a bar approximately 17 mm tissue, and if it is less than 10 mm, it is recommended to repeat the puncture in the same direction.

Sometimes biopsy leads to undesirable consequences.Although the procedure is considered safe, it sometimes leads to complications such as hematuria, pain in the perineum and rectum, gemospermiya, acute prostatitis, rectal bleeding, urine retention, acute orchiepididymitis, loss of consciousness during the procedure.

The most dangerous complication is bacteremia, and the threat of the development of septic shock.But, fortunately, is a consequence of the biopsy is extremely rare.

When he appointed?

biopsy of the prostate gland is recommended to go with an increase in the level of total PSA, as well as with a decrease in the ratio of: free PSA / total PSA.It is also needed in case of suspicion of prostate cancer after a finger examination of any suspicious areas in the US.In addition, it is required for diagnosing prostate cancer for clarification stage.

Contraindications

There are also a number of contraindications to this procedure: it is a serious condition of the patient, the presence of his acute infectious diseases and disorders of uncontrolled blood coagulation, inflammation of the rectum, hemorrhoids, acute prostatitis.

Sometimes it is also required to re prostate biopsy, for example, in the presence of prostatic intraepithelial neoplasia high degree, or detecting portions melkoatsinarnoy atypical proliferation.Also, it is performed in patients with a tendency to increase in PSA of more than 0.75 ng / ml / year, suspected non-radical radiation therapy for cancer, appears suspicious areas not seen before, when the tumor relapse after prostatectomy.

How to prepare?

Before the biopsy for a few days patients forbidden to take aspirin and any drugs that may affect blood clotting.On the eve of the procedures necessary to carry out a cleansing enema.A few hours before the procedure begins antibiotic prophylaxis is carried out for 3-5 days.

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