View clinical trials related to Prostate Biopsy.
Filter by:Prostate biopsy is indicated in patients with suspected prostate cancer and has been traditionally performed through the rectum using antibiotic prophylaxis. Increasing antibiotic resistance of intestinal bacteria is causing a growing number of patients to get post-biopsy infections. Sepsis rate after transrectal biopsies is approximately 4-10%. To reduce the risk of post-biopsy infections, transperineal approach in general anesthesia and antibiotic prophylaxis has been used. The investigators at Oslo University Hospital Aker developed MRI -TURS elastic image fusion guided transperineal prostate biopsy technique in local anesthesia and Bactrim prophylaxis as outpatient procedure. The investigators found 0.4% post-biopsy infection rate. Afterwards a pilot study using the same biopsy technique however without antibiotic prophylaxis was realized in 90 patients. None of these subjects experienced infection. The investigators wish to perform a prospective randomized trial of antibiotic prophylaxis versus none before transperineal MRI-TRUS fusion guided prostate biopsy in local anesthesia in outpatient clinic.
The main purpose of this study is to compare the infectious outcomes of intrarectal povidone-iodine cleansing plus formalin disinfection of needle tip during transrectal ultrasound guided prostate biopsy. The secondary objective is to evaluate predictive factors of infectious complications after prostate biopsy. Data will be prospectively collected from patients who will undergo prostate biopsy in a single high volume urology center. The patients will be randomized to two different groups: group A - rectal cleansing and disinfection of the needle tip vs group B - controls.
In comparison with transrectal prostate biopsy, transperineal prostate biopsy has the advantage of better sampling from the anterior area, low risk of infection, and no rectal bleeding. The main problems associated with the transperineal method are pain control and additional general or spinal anesthesia. Three types of anesthesia have been reported for transperineal prostate biopsy: (1) spinal anesthesia; (2) general anesthesia; and (3) local anesthesia. From the viewpoint of patient selection (general anesthesia is contraindicated in some patients) and medical cost, local anesthesia is the most suitable choice for prostate biopsy. Periprostatic block is the standard method of local anesthesia for this procedure. However, periprostatic block is insufficient for transperineal prostate biopsy due to high pain sensitivity in this region. A number of new methods to eliminate pain have been reported, including (1) periapical triangle (PAT) block, (2) paraprostatic plus sexual nerve block, and (3) periprostatic block plus pudendal block.However, there is no anatomical basis for some of these methods, and there have been no randomized controlled trials to evaluate their effectiveness, and some methods are technically difficult to learn. In the previous perineal nerve autopsy, we found that there are two branches leading into the prostate and anterior lateral prostatic tissue, which is the main site of puncture pain. There is a fixed position where the two branches appear. Therefore, this anatomical position block may be a useful site for local anesthesia. We named this location the 'transperineal prostate biopsy local anesthesia switch' (abbreviated as TPA switch). In order to validate its effect, we organized this clinical trail.
The study is a randomized controlled trial. Subjects are randomly assigned 1:1 to receive either rapid multiplex qPCR (intervention) prior to standard of care prostate biopsy or standard of care (control) prostate biopsy. The subjects will have a rectal culture swab performed prior to the prostate biopsy. One rectal culture swab will be used for rapid multiplex qPCR and the other swab will be sent to microbiology for a standard culture. The subjects randomized to the intervention group will have the qPCR results shared with the physician to determine if additional standard of care antibiotics are needed at time of standard of care prostate biopsy. The subjects randomized to the control group will not have the qPCR results shared with the physician to determine if additional standard of care antibiotics are needed at time of standard of care prostate biopsy. Approximately, 10 days after the prostate biopsy, the research staff will conduct a chart review and/or telephone call to ask about any prostate biopsy infections and complications.