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. 2013 Jul;23(3):253-7.
doi: 10.4103/0971-3026.120262.

Transrectal ultrasound-guided aspiration in the management of prostatic abscess: A single-center experience

Jigish B Vyas  1 , Sanika A Ganpule  2 , Arvind P Ganpule  1 , Ravindra B Sabnis  1 , Mahesh R Desai  1
Affiliations

Transrectal ultrasound-guided aspiration in the management of prostatic abscess: A single-center experience

Jigish B Vyas et al. Indian J Radiol Imaging. 2013 Jul.

Abstract

Objectives: The safety and efficacy of transrectal ultrasound (TRUS) guided aspiration of prostatic abscess (PA) is known. The objective of this study is to describe a treatment algorithm for management of PA with TRUS-guided aspiration, emphasizing on indications and factors predicting the treatment outcome.

Materials and methods: After the institutional review board approval was obtained, a retrospective study was done of all patients suspected with PA on digital rectal examination (DRE) and confirmed on TRUS. An 18-gauge two-part needle was used for aspiration. The real-time TRUS-guided aspiration of PA was done in the longitudinal axis. The aspiration of pus and the sequential collapse of cavity was seen "real time." A suprapubic catheter was placed, if the patient had urinary retention, persistent dysuria, and/or severe lower urinary tract symptoms (LUTS). Success was defined as complete resolution of the abscess and/or symptoms.

Results: Forty-eight patients were studied with PA, with a mean age of 54.6 ± 14.6 (range 26-79) years. The DRE diagnosed PA in 22 (45.83%) patients, while abdominal sonography diagnosed PA in 13 (27.08%) patients. TRUS revealed a hypoechoic area with internal echoes in all 48 (100%) patients. The diagnosis was confirmed in all 48 cases with aspiration. The mean size of the lesion was 3.2 ± 1.2 (range 1.5-8) cm. Mean volume aspirated was 10.2 ml (range 2.5-30 ml). Complete resolution after first aspiration was observed in 20 (41.66%) patients. An average of 4.1 (range 1-7) aspirations was required for complete resolution which was seen in 41 patients (85.42%). Seven (14.58%) patients required transurethral resection (deroofing) of the abscess cavity. We formulated a treatment algorithm based on the above findings.

Conclusion: The proposed algorithm based on our experience suggests that patients with PA larger than 2 cm with severe LUTS and/or leukocytosis benefit from TRUS-guided aspiration. In addition, these patients are benefitted from urinary drainage (either perurethral or suprapubic). The algorithm also suggests that if two attempts of TRUS aspiration fail, these patients benefit from transurethral drainage.

Keywords: LUTS; TRUS; prostate imaging; prostatic abscess.

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Conflict of interest statement

Conflict of Interest: None declared.

Figures

Figure 1
Figure 1
TRUS (BK Medical, Denmark 7.5 MHz probe) guided aspiration was done in the left lateral decubitus position
Figure 2(A-D)
Figure 2(A-D)
The TRUS image of needle aspirating PA (A) The size, shape, location of the PA (hypoechoic lesion) was noted (B) An 18-gauge two-part needle was used for aspiration. The assembly involves a stylet with an 18-gauge needle. The needle is attached to a 20-cc syringe. The real-time TRUS-guided aspiration of PA was done in the longitudinal axis. The trajectory of the needle was ascertained using the electronic dotted line inbuilt in the probe (C) The aspirated fluid was analyzed for culture, fungus, acid-fast bacilli (AFB) staining (D) A follow-up TRUS shows resolution of abscess
Figure 3(A-D)
Figure 3(A-D)
(A) Prostatic abscess in longitudinal section (B) Prostatic abscess in transverse section (C) TRUS-guided aspiration in longitudinal section (D) TRUS-guided aspiration in transverse section
Figure 4
Figure 4
A proposed algorithm for management of prostatic abscess using TRUS as a tool
See this image and copyright information in PMC

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