[Neurogenic bladder and continent cystostomy: Results of a monocentric cohort in a French university hospital]. / Vessies neurologiques et cystostomie continente : résultats d'une cohorte monocentrique dans un centre hospitalier français.

OBJECTIVE: The main objective was to evaluate the complications of continuous urinary shunts in a French university hospital according to surgical technique and functional results especially on continence. The secondary objective was to evaluate the management of complications. METHODS: A retrospective study was conducted between January 2008 and August 2017. Patients who had a continent cystostomy with or without bladder augmentation were included. Diversions for non-neurological causes were excluded. Cystostomy was performed using the appendix or a Monti's artifice. Data collected included complications and their management, functionality of the diversion and of the bladder reservoir, cystostomy continence, and urethral continence. RESULTS: Nineteen patients were included. The median follow-up time was 46 months. The majority of early postoperative complications were classified as grade II Clavien-Dindo. No postoperative deaths occurred. Late complications most frequently involved cystostomy duct stenosis (n=5), cystostomy incontinence (n=5), and urethral incontinence (n=8). Thirteen patients had revision surgery for late complications. Late complications on continence evolved favorably after revision surgery or medical treatment in all, but one case. CONCLUSION: Our results are consistent with the literature. Complications and the re-interventions are frequent and should lead to a multidisciplinary information and evaluation of the patient in preoperative care. LEVEL OF PROOF: 3.

Reliability and reproducibility of the American Association for the Surgery of Trauma scaling for renal injury and impact on radiologic follow-up.

INTRODUCTION: The American Association for the Surgery of Trauma (AAST) Organ Injury Scale (OIS) is the most used classification for renal trauma. It determines the radiologic monitoring, only recommended for high-grade injuries. The aim of this study was to assess the subjectivity of AAST scaling and its impact on short-term follow-up. METHODS: We retrospectively reviewed all patients with blunt renal injuries admitted at a university hospital between 2010 and 2015. Computed Tomography (CT) scan were analyzed and injuries graded according to AAST OIS independently by a senior radiologist, a senior urologist who was blind to clinical data and a resident urologist. Grading disagreements were analyzed collegially to obtain a final rating. The agreement of AAST scaling was evaluated through the Cohen's Kappa coefficient. RESULTS: Ninety-seven patients had 101 renal injuries: low grade in 58.4% (11.9% grade I, 17.8% grade II, 28.7% grade III) and high grade in 41.6% of cases (23.6% grade IV and 17.8% grade V). The agreement was fair with Kappa coefficient at 0.36. The agreement was moderate in severity sub-division analysis (low or high grade): Kappa coefficient at 0.59. There was a disagreement in 49.5% between the senior urologist's and the senior radiologist's ratings. Those differences brought to a severity group change and radiologic follow-up modification in 34% (n=17). CONCLUSION: AAST OIS for renal trauma suffers from subjectivity but is improved by severity sub-group analysis. This subjectivity influences the radiologic follow-up but could be reduced by collegiate rating. LEVEL OF EVIDENCE: 4.

[Botulinium toxin and idiopathic overactive bladder: Multicentric contempory management in Bourgogne]. / Toxine botulique et hyperactivité vésicale idiopathique : évaluation multicentrique des pratiques en Bourgogne.

INTRODUCTION: Since 2014, OnabotulinumtoxinA Botox® (Allergan, Inc., Irvine, USA) represents a new therapeutic option for second-line treatment of idiopathic overactive bladder. The purpose of the current study was to evaluate practices of surgeons using onabotulinium toxin (BoNTA) in this indication. MATERIAL AND METHODS: All urogynecology centers of the country were asked in order to list all patients who were treated since marketing autorisation. Patient symptoms, previous treatments, paraclinic evaluations, data of surgery and the characteristics of the follow up were collected and analyzed. RESULTS: Six centers used BoNTA and five have accepted to participate. Ninety-seven patients have been identified. Sixty-eight first injections (70 %) were carried out with the strict frameworf of the marketing autorisation (urinary frequency, urinary urgency, urinary incontinence). All patients had at least two symptoms. In 69 %, Botulinum toxin was a second-line treatment after the failure of tibial neuromodulation or sacral neuromodulation. Urodynamic evaluation was carried out for 91 % of patients. The search for a post-void residual volume was observed for 59 % of patients during the follow up. CONCLUSION: In our country, BoNTA injections for idiopathic overactive bladder are mainly effected after tibial neuromodulation or sacral neuromodulation failure. Diagnostic, operating and outcome evaluation practices are still very heterogeneous pleading for a greater standardization of this new therapy in this indication. LEVEL OF EVIDENCE: 3.

[High-risk prostate cancer surgical margins during robot-assisted radical prostatectomy]. / Marges chirurgicales des cancers de prostate à haut risque en prostatectomie totale robot-assistée.

OBJECTIVE: To evaluate the feasibility of robot-assisted radical prostatectomy (RARP) in high risk prostate cancer (HR). The rate of positive surgical margins (PSM) was compared between anticipated HR cancer according to D'Amico risk classification and discovered postoperative HR cancer. MATERIALS AND METHODS: A retrospective study was conducted between 2006 and 2013 on patients who underwent RARP. Before surgery, patients were divided according to the D'Amico risk classification. After surgery, HR was defined as pT3a or pT3b, or Gleason score≥8 or positive lymph nodes. The rate of PSM was compared according to the D'Amico risk classification and postoperative HR. RESULTS: During the study, 485 patients were reviewed. Before surgery, 10 % of cancers were classified as D'Amico 3 (49/485). After surgery, 27.6 % (134/485) were classified as HR. There was a significant difference between the rate of PSM in HR/D'Amico 3 and HR/non D'Amico 3 cancer, respectively 22.9 % and 34.3 % (P<0.001). CONCLUSION: The RARP is feasible in HR with an average of 30 % of PSM as in open surgery. However, the accurate assessment of preoperative HR will allow a more adapted dissection and a decrease of rate of PSM. So it is necessary to improve the detection of HR and so to select the most suitable cancer for surgery. LEVEL OF EVIDENCE: Level 5.

Is there a volume-outcome relationship for partial nephrectomy?

OBJECTIVE: To investigate the impact of hospital volume on partial nephrectomy indications and outcomes. MATERIALS AND METHODS: Data were extracted from the National Observational Registry on the Practice and Hemostasis in Partial Nephrectomy registry. Four groups were created according to the number of partial nephrectomy (PN) performed: very high (VH, ≥ 19 PN), high (H, 10-18 PN), moderate (M, 4-9 PN) and low (L, <4 PN) PN activity. Indications and surgical outcomes were compared among all groups. The effect of hospital volume on postoperative complications and positive margin rate was examined by a multivariable analysis. RESULTS: Fifty-three centers included a total of 570 PN. There were 9 VH, 13 H, 12 M and 19 L volume centers which performed 270 (47.4 %), 179 (31.4 %), 74 (13 %) and 47 (8.2 %) PN, respectively. Patients in higher volume centers were significantly younger (p = 0.008), had a lower BMI (p = 0.002) and decreased ASA score (p < 0.001). PN was more frequently performed in higher volume centers (p = 0.006) particularly in case of renal masses <4 cm (p = 0.005). Open surgery was the most common approach in all groups, but laparoscopic PN was more frequent in M volume hospitals (p < 0.001). Positive margin (p = 0.06) and complications (p = 0.022) rates were higher in M group. In multivariable analysis, renal chronic disease was an independent predictor of positive margin rate (p < 0.001, OR 3.91). CONCLUSIONS: PN is more frequently performed in high volume institutions particularly for small renal masses. We observed increase positive margin and complication rates in moderate volume centers that might be explained by an increased use of laparoscopy.

[Does robotics improve laparoscopic radical prostatectomy in complex surgical cases?]. / Le robot améliore-t-il la prostatectomie totale laparoscopique dans les cas complexes?

UNLABELLED: The radical prostatectomy is the main treatment prostate cancer in young men. However in difficult cases, another therapeutic option is often suggested. OBJECTIVE: Evaluation of the quality of the anastomosis in complex surgical cases by comparing laparoscopic radical prostatectomy (LRP) to robotic assisted radical prostatectomy (RLRP). MATERIAL: From March 2004 to August 2009, 397 patients underwent radical prostatectomy: 176 LRP and 221 RLRP consecutively by the same surgeon. Antecedents that might have complicated dissection were analyzed: prostatic volume over 80 cc, previous inguinal hernia repair with mesh, previous pelvic surgery, body mass index over 30 and previous trans-urethral resection of prostate. RESULTS: In a preoperative mode, there was no significant difference between the two groups. A multivariable analysis of the quality of the anastomosis turned to the advantage of the robot (OR=2.56 [95 %CI: 1.28-5.25]), specifically for difficult cases (Odd Ratio=7.736 [95 %CI: 2.689-22.254]). CONCLUSION: The use of the robot improved the quality of the anastomosis for patients that might have raised technical issues.

[Urinary lithotripsy in children. Multicenter study of the Pediatric Urology Study Group]. / Lithotritie urinaire de l'enfant. Etude multicentrique du Groupe d'Etudes en Urologie Pédiatrique (GEUP).

The authors present the results of a survey conducted among French paediatric urologists belonging to the Groupe d'Etudes en Urologie Pédiatrique (GEUP) (Paediatric Urology Study Group). This study, based on 122 cases observed in 13 centres, is not exhaustive, but is nevertheless statistically significant. The preoperative assessment confirms the usual findings of urinary stones in children: pyelonephritis, haematuria and abdominal pain, the usual presenting complaint, concomitant malformative uropathy (10% of cases) and a predominance of calcium stones. More than 200 stones were treated, larger than 10 millimeters in diameter in one-third of cases. Renal stones, mainly caliceal (more than 50%), included 11 staghorn calculi. This study also included 22 ureteric stones, mainly in the pelvic ureter, and 2 bladder stones. Lithotripsy was ultrasound-guided in 2/3 of cases and required general anaesthesia in about 3/4 of cases. Ureteric catheterization was required in 19 infants preoperatively, but in only 2 infants (stein strasse) postoperatively. One or two lithotripsy sessions were sufficient in most cases, but 4 sessions were necessary in 5 patients, to the same kidney in 1 case. The mean hospital stay was 2 to 3 days, but the procedure was performed on an outpatient basis in 15 cases. The immediate postoperative course was uneventful and asymptomatic. This survey revealed about 10% of complete failures, corresponding to solitary caliceal stones in 2/3 of cases; 29 partial failures were essentially due to lower caliceal stones and staghorn calculi; 84 successes (stone-free), mainly pelvic or simple caliceal stones. Scintigraphy did not reveal any immediate postoperative impairment of renal function. This study reported a success rate of about 70%, regardless of the type of apparatus used. Assessment of the results of ESWL requires sufficient follow-up both concerning the outcome of fragmented stones and evaluation of possible functional repercussions. This survey defines the main indications: although ESWL can be applied to most stones, some stones constitute poor indications (cystine stones, stenotic malformative uropathy) or dubious indications: small lower caliceal stones, densely calcified staghorn calculi in older children. This study confirmed the efficacy and low morbidity of ESWL in children. A prospective study needs to be conducted according to a rigorous protocol in order to refine the technique and indications while reducing the possible long-term risks.

Single percutaneous access for endoscopic extraction of lithiasis after intestinocystoplasty.

PURPOSE: Bladder-stone formation is a common problem following augmentation cystoplasty. Urological management is controversial. We describe a minimally invasive technique using electrohydraulic vesicolithotripsy via a single percutaneous access. MATERIAL AND METHODS: Between 1998 and 2004, 10 percutaneous extractions of bladder calculi were performed in seven patients with bladder augmentation. Prior bladder enlargement was performed for neuropathic bladder dysfunction in four cases and bladder exstrophy in three cases. The procedure involved percutaneous placement of a 10- or 12-mm laparoscopic trocar, after which the airtightness valve of the trocar was removed. A rigid nephroscope allowed direct visualization of calculi. Stones were fragmented with electrohydraulic lithotripsy when necessary. Removal of the fragments was by grasping forceps or basket. Vigorous, warmed-saline bladder irrigation eliminated residual fragments. RESULTS: The technique was successful in all cases, resulting in controlled bladder-stone-free status and no surgical complications. The only complication was hypothermia linked to prolonged operation time, inadequate warmed-saline irrigation and lack of waterproof sheets. CONCLUSIONS: Percutaneous vesicolithotripsy was highly successful and easy to perform, without being restricted by size and number of calculi. The continence mechanism of a reconstructed urethra or Mitrofanoff conduit should not be compromised. As recurrent stone formation is expected in children with augmented bladder, this technique appears to be suitable for bladder calculi removal during the long-term follow-up of multioperated patients.

Water-jet dissection in renal surgery: experimental study of a new device in the pig.

The pig model was used for experiments with a new type of water-jet dissector, which produces high-pressure water by application of a gas and maintains the water fully sterile in a single-use delivery apparatus. The experiment was conducted ex vivo (14 kidneys) and in vivo to compare electric cautery section with water-jet dissection (5 vs 11 partial nephrectomies). Ex vivo study confirmed sparing of blood vessels and pelvicaliceal system. In vivo study did not show significant differences in blood loss but, the water-jet allowed precise dissection and tight closure of the excretory system. More frequent haemorrhages were noted on histological examination of the WJ group, but no coagulation necrosis. These are preliminary findings and further studies of long-term results may confirm the benefits of the absence of parenchymal necrosis and the definite advantage of precise closure of the pelvicaliceal system, as morbidity of partial nephrectomy is often related to secondary haemorrhages and urinary fistulae.