Nonablative minimally invasive thermal therapies in the treatment of symptomatic benign prostatic hyperplasia:

Acute epididymo-orchitis: staging and treatment

Introduction

Acute epididymo-orchitis (AEO) is an acute inflammatory disease of the epididymis and ipsilateral testis. Treatment should be started immediately after diagnosis and includes antibiotics, analgesics, and, if necessary, surgery.

Materials and methods

After AEO diagnosis, patients were treated conservatively with analgesics and antibiotics. If no clinical improvement was observed within the first 48-72 hours of conservative treatment, patients underwent surgery. Depending on examination results, 254 patients (pts.) were divided into three groups: 1) with palpable differences between the epididymis and testis (E/T+), and without neither hydrocele, local softening (malacia), nor abscess of the epididymis or testis; 2) with E/T+, absence of malacia, presence of hydrocele, and none, one, or a few small abscesses within the epididymis/testis and 3) without palpatory differentiation between the epididymis and testis, with or without malacia, with hydrocele, and none, one, or more abscesses of any size. We analyzed the clinical outcomes in each group.

Results

All of patients from the first group were successfully treated with antibiotics. In the second group, conservative treatment was effective in 70 pts. (85.4% of this group), but the other 12 pts. (14.6%) did not show clinical improvement and underwent organ-sparing surgery. The majority of patients from the third group did not demonstrate an objective response to antibacterial treatment during the first 48-72 hours and, therefore, underwent surgery. Based on examination results and clinical outcomes we developed a classification system for AEO, which divides AEO into three stages and recommends an approach to its treatment.

Conclusions

Our classification is able to systematize treatment approaches in patients with AEO.

MR imaging-guided cryoablation for the treatment of benign prostatic hyperplasia

A patient with benign prostatic hyperplasia presented with chronic lower urinary tract symptoms despite prior surgery and continued medical therapy. Using a magnetic resonance imaging-guided transperineal approach, two cryoprobes were placed into the transition zone of the prostate gland, and two cryoablation freeze-thaw cycles were performed. At 10 weeks after treatment, the frequency of nocturia had decreased from once every 1.5 hours to once per night, urinary peak flow rates had increased from 5.1 mL/s to 10.3 mL/s, and postvoid residual urinary bladder volume had decreased from 187 mL to 58 mL. Improved flow rates and symptoms remained stable 16 weeks after treatment.

Ablation of benign prostatic hyperplasia using microbubble-mediated ultrasound cavitation

Benign prostatic hyperplasia (BPH) is a world-wide common disease in elderly male patients. A number of invasive physiotherapies have been used to replace prostatectomy. In this article we report our hypothesis of using microbubbles-mediated ultrasound cavitation effects to ablate prostatic tissues. Microbubble ultrasound contrast agent is widely used contrast media in ultrasonography, yet it is also found to act as cavitation nuclei or enhancer. Once excited by a high peak pressure ultrasound pulse, the mechanical effects, like shock wave and microstream, released from cavitation could produce a series of bioeffects, contributing to sonoporation, microvascular rupture and hematoma. BPH is known to have hyperplastic neovasculature and this make it possible to be disrupted by the physical effects of cavitation under existing microbubbles in circulation. Mechanical ablation of prostatic capillary or small vessels could result in pathological alterations such as thrombosis, micro-circulation blockage, prostatic necrosis and atrophia. Thereupon it could effectively treat BPH by nontraumatic ways.