Track and Teach: Identifying Key Movement Patterns in Endoscopic Transurethral Enucleation of the Prostate.

PURPOSE: We evaluated a system for noninvasive quantitative motion tracking to recognize differences in the movement pattern of experienced surgeons and beginners. Since performing endoscopic procedures requires extensive training, and tissue damage due to disruptive movements with sudden acceleration is possible, the learning curve for beginners is of clinical relevance. Steepening this curve may improve patient outcome. MATERIALS AND METHODS: We used a commercial gyroscope sensor with a wireless data link, which was attached to the resectoscope handle (RH). After recording, orientation was retrieved by application of the calculated rotation matrices to the RH vector relative to the sensor under the boundary condition of rotational movement around and quasi-constant distance to the pivot point at pelvic floor level. Data alignment, normalization, interpolation, and analysis were performed in custom software scripts. RESULTS: Experienced surgeons and beginners were recorded in n = 36 and n = 14 holmium laser enucleation of the prostate (HoLEP), respectively. Prostate size, patient age, and recorded procedure duration were comparable. Mean lever angle of the individual normalized motion patterns was considerably lower (19.28 ± 0.54° [SEM]) in the advanced than in the beginners' group (24.52 ± 1.00°; p = 0.0001). Further parameters such as velocity and motion variation demonstrated additional differences between both groups. CONCLUSIONS: We demonstrate the feasibility of motion tracking in HoLEP. Pronounced differences exist between different stages of surgeon experience with this procedure. The method can easily be adopted to aide young surgeons in resectoscope handling and identification of improvable motion patterns. Damage to the pelvic floor and surrounding tissue may thus be reduced.

"Three horse shoe-like incision" holmium laser enucleation of the prostate: first experience with a novel en bloc technique for anatomic transurethral prostatectomy.

OBJECTIVE: To demonstrate the performance of a novel holmium laser enucleation technique in patients with lower urinary tract symptoms (LUTS). MATERIALS AND METHODS: Between September 2015 and August 2017, 114 consecutive patients underwent modified HoLEP [3 horse shoe-like incision HoLEP (3 HSI HoLEP)] for LUTS performed by an experienced urologist (A.M.). The surgical intervention and short postoperative course were analyzed. International Prostate Symptom Score (IPSS), quality of life score, maximum urinary flow rate (Q max), postvoid residual urine (PVR), and clinical and sociodemographic data were assessed preoperatively. The patient cohort was compared with existing data regarding clinical outcome parameters after surgical LUTS therapy. RESULTS: The mean size of the prostatic gland was 86.3 ± 46.5 mL. The mean total operative time was 49.6 min (15-280 min). IPSS, Q max, and PVR were 20.7, 10.8, and 112.7 mL, respectively, prior to the intervention in the 3 HSI HoLEP group. The complication rate for Clavien category-III complications was 4.4%; no category IV complications were recorded. Seven of 114 patients experienced urinary retention after catheter removal during the hospital stay. CONCLUSIONS: The presented procedure provides several improvements over the standard modality. The prostatic gland is enucleated en bloc in an anatomical manner without longitudinal incisions of the urethra. This method is fast, safe, and may be easier to learn. However, this is the first description recorded. Future multicenter, controlled studies should clarify the long-term outcomes and surgical performance of 3 HSI HoLEP.

Surgical therapy of prostatitis: a systematic review.

PURPOSE: The clinical term "prostatitis" refers to a clinical syndrome defined by the following 4 distinct entities: acute bacterial prostatitis (category 1), chronic bacterial prostatitis (category 2), chronic prostatitis/chronic pelvic pain syndrome (category 3), and asymptomatic prostatitis (category 4) The etiology of the chronic forms is still not fully understood and choice of therapy is often debated. The objective of this systematic review is to collect evidence on the surgical treatment of the chronic form of prostatitis and to evaluate its clinical implication. METHODS: We performed a systematic literature search and identified 6683 relevant publications, of which 16 were included in the review. RESULTS: Transurethral prostate resection was performed in 110 patients; 78 patients (70%) were reported as "cured", 16 patients (15%) as improved, and 16 patients (15%) as unchanged. Radical prostatectomy was performed in 21 patients; a full resolution of prostatitis related symptoms was reported for 20 patients (95%). No increased rates of complications or unusual complications were noted. CONCLUSIONS: Surgical therapy of chronic bacterial prostatitis or chronic pelvic pain syndrome might be a viable option; however, since little evidence is currently available and no randomized controlled trials have been conducted, the presently available data does not provide a base for clinical decisions.