[Assessment of energy density during laser photoselective vaporisation of the prostate: A retrospective monocentric study]. / Évaluation de l'effet de la densité d'énergie délivrée lors d'une photovaporisation prostatique laser : étude rétrospective monocentrique.

INTRODUCTION: Greenlight XPS-180W® (AMS, San José, USA) photoselective vaporisation of the prostate (PVP) is considered as an alternative to transurethral resection of the prostate. The objective of this study was to assess the effect of energy density applied on adenoma during PVP treatment for benign prostate hyperplasia (BPH) on postoperative outcomes. METHODS: A single-centre retrospective study has been conducted in the department of Urology of Colmar Hospital, in patients with symptomatic BPH, treated by PVP, between January 2016 and January 2019. Patients were stratified into two groups according to energy delivered and prostate volume as determined preoperatively: Low density (<4kJ/mL) and high density (>4kJ/mL). Perioperative complications, PSA evolution and functional outcomes (International Prostate Symptom Score, quality of life, maximum urinary flow rate, post-void residual urine volume) were compared with a minimal delay of 6 months. The retreatment rate was similar in the two groups. RESULTS: A total of 215 patients were included with median follow-up of 25 months. High energy density was associated with less glandular volume. There were no statistically significant differences between the two groups concerning the perioperative complications and the functional outcomes. The postoperative reduction of the PSA level was more significant in the high-energy group (41% vs. 28%, P=0.03). CONCLUSION: The perioperative complications and functional outcomes of PVP with Greenlight XPS-180W® laser are equivalent depending on the energy density delivered. The greater decrease in postoperative PSA for high-energy density could nevertheless suggest better quality tissue destruction. LEVEL OF PROOF: 3.

[Vaginal prolapse. What dynamic pelvic MRI adds to clinical examination?]. / Prolapsus vaginal. Comment l'IRM pelvienne dynamique vient-elle compléter l'examen clinique ?

OBJECTIVE: We wanted to study the role of dynamic pelvic MRI (D-MRI) in the surgical management of patients with genito-urinary prolapse. PATIENTS: A routine D-MRI examination before and after laparoscopic double promontofixation was performed in 15 cases with symptomatic vaginal prolapse in need of surgical treatment. The review included also three self-administered questionnaires of symptoms and quality of life. We compared the preoperative clinical evaluation of the studied cases with D-MRI data. Changes after the surgical treatment were also studied. RESULTS: The D-MRI provides an accurate diagnostic evaluation of the pelvis, which is both objective and reproducible. The correlation between clinical scores and radiological magnetic resonance was 53.3% only. In cases with absence of previous pelvic surgery, there was a radio-clinical discrepancy of 40% of cases, while in cases with history of a previous pelvic surgery we found a discrepancy of 60% of cases. This was due to clinical difficulty in differentiating between peritoneocele and rectocele, or due to under-diagnosis of complex prolapse. The sensitivity of MRI in the diagnosis of cystocele, hysterocele and rectocele were respectively 100, 100 and 83%. The gain in sensitivity provided by the MRI was significant for the diagnosis of peritoneocele: 100% against 33%. The specificity was 100%. Static images allowed a detailed study of damaged connective tissues and pelvic muscles. CONCLUSION: The D-MRI seems an appropriate tool in pre-operative assessment of cases with vaginal prolapse. It will help in focusing our surgical strategy, especially in cases that present post-hysterectomy and in cases with residual or recurrent prolapse.