Sepsis secondary to a misplaced urinary catheter into the ureter.

Misplacement of a urinary catheter in the ureter is a rare phenomenon. The described cases occurred in patients with neurogenic bladder. We describe an unusual case of 58 years old female where the Foley catheter was unintentionally placed in the left ureter. The patient developed sepsis due to complete obstruction of the left ureter treated with antibiotic therapy after repositioning the catheter.

[An update on the most recent mini-invasive surgical and interventional techniques in the management of benign prostatic obstruction]. / Mise au point sur les nouvelles techniques chirurgicales et interventionnelles dans la prise en charge de l'obstruction sous-vésicale liée à l'hyperplasie bénigne de la prostate.

INTRODUCTION: New surgical techniques for the treatment of benign prostatic obstruction (BPO) have emerged in recent years. We sought to give an overview on each of these technologies. MATERIAL: A comprehensive review of the literature between 2013 and 2020 was carried out by a panel of national experts already practicing these interventions. All the data were then discussed among all the co-authors in order to obtain a consensus with regard to the selected articles and their analysis. Finally, an inventory was drawn to provide an overview of these technological advances and their availability in France. RESULTS: The treatment benign prostatic obstruction has diversified greatly over the past 5 years. 5 new technologies have emerged, allowing today a transurethral non-ablative treatment (UROLIFT®, ITIND®), a transurethral ablative treatment (REZUM®), a transurethral ablative treatment with robotic assistance (AQUABEAM®) or an endovascular management by embolization of the prostatic arteries. Only UROLIFT® is considered an established technology in the latest EAU-Guidelines. The other four are under evaluation and recommendations have only been issued for two of them, AQUABEAM® and the embolization of the prostatic arteries. CONCLUSION: These new minimally invasive techniques aim to increase the therapeutic options for the management of BPO in order to offer a management more suited to the wishes of the patient. Some are positioned as an alternative to surgical or medical treatment, others between medical and surgical treatment. These technologies are not all at the same level of development, evaluation and level of proof, but have in common a limited distribution in France, in particular given their cost. Validated studies will allow them to position their subsequent use more precisely.

[Urinary incontinence after HOLEP: Incidence, evolution and predictive factors]. / Incontinence urinaire après énucléation endoscopique de la prostate au laser Holmium : fréquence, évolution, et facteurs prédictifs de survenue.

OBJECTIVE: Assess the early morbidity after HOLEP, the urinary incontinence in particular, and specify its different types, evolution, and predictive factors. PATIENTS AND METHODS: We conducted an observational, analytical, retrospective, monocentric study including all patients undergoing surgery for benign prostatic hypertrophy (HBP) by HoLEP between November 2015 and January 2017. The data were collected pre-, per- and postoperatively. The follow-up was for 6 months. RESULTS: One hundred and seventy one patients were included. 23 patients (14.6%) had a complication according to Clavien-Dindo classification [4]: 19 (83%) Clavien 2, 1 (4%) Clavien 3b et 3 (13%) Clavien 4. At one month of the surgery, 64 (42.7%) patients had urinary incontinence of which 55 (86.1%) presented pure stress urinary incontinence. 18 (32.7%) were still incontinent at 6 months of the surgery. The delivered amount of energy during the surgery and the preoperative IIEF5 score were statistically significantly associated with the occurrence rate of stress urinary incontinence. There was no correlation between the surgeon's learning curve and the occurrence of incontinence. CONCLUSION: The occurrence rate of urinary incontinence post HoLEP might be related to the adopted surgical technique ; It is crucial to keep the patient well informed of the risk of this complication postoperatively. LEVEL OF EVIDENCE: 4.

Perioperative and economic analysis of surgical treatments for benign prostatic hyperplasia: A study of the French committee on LUT.

PURPOSE: To evaluate perioperative cost related to surgical treatments of benign prostatic obstruction (BPO): photoselective vaporization of the prostate (pvp), holmium/thullium laser enucleation (HoLEP/ThuLEP), transurethral resection of the prostate (TURP) and open prostatectomy (OP). MATERIAL AND METHODS: We retrospectively collected data from 237 patients who consecutively underwent a surgical treatment for BPH between January 2012 and June 2013 at nine institutions in France. An economic simulation model was constructed to estimate the cost of hospitalization related to surgical procedure from the hospital perspective and a cost minimization analysis was performed. RESULTS: TURP, OP, HoLEP/ThuLEP and PVP were performed in 99 (42%), 23 (10%), 64 (27%) and 51 (21%) patients, respectively. For men with prostate size<80mL: mean operative time was shorter with mTURP and PVP than HoLEP/thuLEP (P<0.001); Mean postoperative length of stay were 1.9, 3 vs. 3.4 days, for HoLEP/Thulep, PVP and TURP respectively (P=0.006); Costs of first hospitalization were comparable between HoLEP/ThuLEP and TURP but higher with PVP (P<0.001). For men with prostate size≥80mL: Compared to PVP and HoLEP/ThuLEP, OP was associated with shorter operative time (P<0.001) but longer length of stay (2.4, 4.2 vs. 7.8 days, respectively, P<0.0001); Costs of first hospitalization were significantly higher with OP than HoLEP/ThuLEP or PVP (P<0.001). CONCLUSIONS: PVP and HoLEP/ThuLEP were associated with a shorter LOS than TURP and OP. This benefit suggests these procedures could be more cost effective than OP, but still not cheaper alternatives to TURP. LEVEL OF EVIDENCE: 5.

[Negative prognostic impact of female gender on oncological outcomes following radical cystectomy]. / Impact pronostique du genre féminin sur le devenir oncologique des patients traités par cystectomie totale.

OBJECTIVE: To confirm gender specific differences in pathologic factors and survival rates of urothelial bladder cancer patients treated with radical cystectomy. PATIENTS AND METHODS: We conducted a retrospective monocentric study on 701 patients treated with radical cystectomy and pelvic lymphadenectomy for muscle invasive bladder cancer. Impact of gender on recurrence rate, specific and non-specific mortality rate were evaluated using Cox regression models in univariate and multivariate analysis. RESULTS: We collected data on 553 males (78.9%) and 148 females (21.1%) between 1998 and 2011. Both groups were comparable at inclusion regarding age, pathologic stage, nodal status and lymphovascular invasion. Mean follow-up time was 45 months (interquartile 23-73) and by that time, 163 patients (23.3%) had recurrence of their tumor and 127 (18.1%) died from their disease. In multivariable Cox regression analyses, female gender was independently associated with disease recurrence (RR: 1.73; 95% CI 1.22-2.47; P=0.02) and cancer-specific mortality (RR=2.50, 95% CI=1.71-3.68; P<0.001). CONCLUSION: We confirmed female gender to be an independent negative prognosis factor for patients following a radical cystectomy and lymphadenectomy for an invasive muscle bladder cancer.

[Medicoeconomic aspects of benign prostatic hyperplasia medical treatment]. / Aspects médicoéconomiques des traitements médicamenteux de l'hypertrophie bénigne de la prostate : une revue de la littérature du Comité des troubles mictionnels de l'homme de l'Association française d'urologie.

INTRODUCTION: The medicoeconomic issues of drug management of benign prostatic hyperplasia (BPH) are essential due to the aging population and the increasing number of therapeutic options. It is thus essential to assess the cost-effectiveness in order to define the most appropriate therapeutic strategies economically. The objective of this work was to conduct a literature review on the medicoeconomic studies on the drug therapy of BPH. METHOD: After analyzing the literature, 43 articles were found and 9 were selected for their relevance. RESULTS: Based on Markov models, we observed that: combination therapy and combined treatments (alphablockers and inhibitors of 5-alpha reductase [5ARI]) seemed to have the best cost-effectiveness. Then came the alphablockers, less expensive but exposing to a greater risk of progression and to the necessity of surgical treatments. Then came the 5ARI monotherapy and finally simple monitoring. CONCLUSION: The Markov models are imperfect tools, and resources invested in care depend on both the economic model and the value that individuals and society give to efficiency and cost.

[Evaluation of the impact of CTMH guidelines on the management of benign prostatic hyperplasia]. / Évaluation de l'impact des recommandations du Comité des troubles mictionnels de l'homme sur la prise en charge de l'hypertrophie bénigne de prostate.

INTRODUCTION: The French guidelines on the management of benign prostatic hyperplasia (BPH) have been published in 2012 by the LUTS committee of the French Urological Association. The aim of this study was to evaluate the impact of these guidelines on the BPH management by French urologists. MATERIAL AND METHODS: A questionnaire has been distributed by email to 1141 urologists members of the French Association of Urologists in November 2013. RESULTS: We collected 222 responses (response rate: 19%). The guidelines have been read by 73% of the urologists. The guidelines were followed most of the time by 76% of them, 11% followed them systematically and 4.5% did not follow them. The new terminology was used by 28 to 52% according to the items. The symptoms were evaluated by the IPSS score (33%), by interrogatory alone (64%) or by neither of them (3%). Prostate volume was not systematically taken for account in the treatment strategy by 57% of the urologists. Sexual function was assessed systematically by 28% of the urologists, 11% used a questionnaire (IIEF: 92%). PSA was tested respectively by 70 and 51% of the urologists at the initial evaluation and the follow-up. After introduction of a monotherapy, 56% of the urologists evaluated the efficacy at 3 months. CONCLUSION: The French guidelines for the management of benign prostatic hyperplasia (BPH) by the LUTS committee of the French Urological Association were well known and used by French urologists. Some improvements can be expected for the use of the IPSS score, the evaluation of the sexual function, and the use of the new terminology. LEVEL OF EVIDENCE: 4.

[Conservative treatment of male non-neurologic urinary incontinence: a review by the LUTS committee of the French Urological Association]. / Traitements palliatifs et conservateurs de l'incontinence urinaire masculine non neurologique: une revue de littérature du CTMH de l'AFU.

PURPOSE: To perform an update on the conservative treatment of male non-neurologic urinary incontinence. METHOD: A systematic review was conducted using PubMed/MEDLINE with the following keywords: "incontinence", "male stress urinary incontinence", "pelvic floor training", "biofeedback", "absorbant products", "life style", "penile clamp". RESULTS: Palliative devices like penile clamps, penile sheaths and absorbent products were transitory options that were poorly evaluated. Life style modifications (scheduled voiding, controlled hydric absorption, decreased caffeine and spice intake) were useful in complement of other treatments especially in case of overactive bladder. Pelvic floor training (PFT) was useful after radical prostatectomy but remained optional for other types of incontinence. It accelerated the continence recovery postoperatively but it results at 1 year were uncertain. These results were maintained 1 year. Conservative treatments were useful postoperatively especially early supervised PFT. The benefit of biofeedback and perineal stimulation was controversial. Balder catheterization was a last resort option. Penile sheaths were better than urethral catheterization if there were no post-voiding residual urines. CONCLUSIONS: Palliative options have a limited efficacy but are mini-invasive and might be helpful complementary options.

[Initial assessment of male non-neurogenic incontinence: systematic review of the literature by the LUTS committee of the French Urological Association]. / Bilan initial d'une incontinence urinaire masculine (non neurologique): revue de la littérature du CTMH de l'AFU.

PURPOSE: To perform an update on the initial evaluation of male urinary incontinence (MUI). METHOD: A systematic review was conducted using Pubmed/Medline from 1995 to 2013. RESULTS: Definition of MUI and its prevalence is variable according its definition and the population. Tools for its evaluation have been mainly studied in female population or only in patients with UI after radical prostatectomy. Objectives of the initial evaluation are to assess the type of incontinence, to evaluate its severity and the bother associated, and define the choice of treatment. Medical history, clinical assessment, and urine analysis are the first steps of the evaluation. Bladder diary, questionnaires and pad test can be useful to evaluate MUI. Post-void residual volume assessment is necessary if lower urinary tract symptoms are associated. Imaging is not routinely used in MUI. A specialist referral and further investigations such as urethrocystoscopy and urodynamics should be considered in case of invasive treatment, recurrent incontinence and specific situations. CONCLUSIONS: Initial assessment of MUI should be sequential with systematic investigations and optional ones.

[Treatment of non-neurogenic masculine urinary incontinence due to overactive bladder: a review by the LUTS committee of the French Urological Association]. / Traitement de l'incontinence urinaire masculine non neurologique par hyperactivité vésicale : une revue de la littérature du CTMH de l'AFU.

PURPOSE: To perform an update on the treatment of masculine urinary incontinence due to idiopathic overactive bladder. METHOD: A systematic review was conducted using PubMed/MEDLINE with the following keywords: "overactive bladder", "male urinary incontinence", "urgency", "antimuscarinic", "onabotulinumtoxinA", "neurostimulation", "cystoplasty". RESULTS: Antimuscarinic treatments were the first line option for overactive bladder incontinence (decreased incontinence under tolterodine versus placebo respectively -71% vs. -40%, P < 0.05). Their main side effects were dry mouth (16-29.6%) and constipation (4%), which might decrease the observance. In case of failure, neuromostimulation could be prosed with a 67% efficacy rate. Intra-detrusorian injections of onabotulinumtoxinA were an option, however there were still not validated for this indication and their efficacy decreases with time and after repeated injections. The ultimate option in case of refractory major over-activity was cystoplasty, which involves major morbidity for inconstant efficacy. CONCLUSIONS: The same treatments are available for non-neurologic urinary incontinence by bladder over-activity for men and women: antimuscarinic drugs, neurostimulation, onabotulinumtoxinA. However, only few data is available for masculine population exclusively.

[Prognostic factors of upper tract urothelial carcinoma]. / Facteurs pronostiques des tumeurs de la voie excrétrice urinaire supérieure.

INTRODUCTION: Upper urinary tract urothelial carcinoma (UTUC) is a rare disease. Thus, little evidence-based data are available to guide clinical decision-making. The aim of the study was to provide an overview of the currently available prognostic factors for UTUC. MATERIAL AND METHODS: A systematic literature search was conducted using the PubMed databases to identify original articles regarding prognostic factors in patients with UTUC. RESULTS: We divided the prognostic factors for UTUC in four different categories: clinical factors, preoperative characteristics, intraoperative/surgical factors and postoperative/pathologic factors. Prognostic factors described in order of importance are: tumor stage and grade, lymph node involvement, a concomitant cis, age at the diagnostic, lymphovascular invasion, tumor architecture and necrosis, tumor location and multifocality, gender. The impact of obesity, smoking and other comorbidities (ECOG, ASA) on outcomes has been recently reported but needs to be validated. The endoscopic approach of distal ureter management during radical nephroureterectomy has been shown to be at higher risk of bladder recurrence. CONCLUSION: The incorporation of such prognosticators into clinical prediction models might help to guide decision-making with regard to timing of surveillance, type of treatment, performance of lymphadenectomy, and consideration of neoadjuvant or adjuvant systemic therapies.

Value of multiparametric MRI in the work-up of prostate cancer.

The role of magnetic resonance imaging (MRI) in prostate cancer evaluation is controversial and likely underestimated. Technological advances over the past 5 years have demonstrated that multiparametric MRI, including diffusion-weighted imaging (DWI) and dynamic contrast-enhanced MRI, can evaluate the actual tumor burden of a newly diagnosed prostate cancer more accurately than sextant biopsy protocols. Tumor risk, defined by the D'Amico criteria, hence can be re-evaluated by multiparametric MRI. As a result, there is increasing evidence that MRI before repeat or even initial biopsy can accurately select patients who require immediate biopsies and those in whom biopsy could be deferred. Also, a relationship between apparent diffusion coefficient (ADC), calculated from DWI, and Gleason score was found. Thus, MRI before biopsy helps to detect high-grade tumors to target biopsies within areas of low ADC values. To achieve good targeting accuracy, transrectal ultrasound (TRUS)-MRI image registration is necessary. Three-dimensional deformable registration is sufficiently accurate to match TRUS and MRI volumes with a topographic precision of 1 mm. Real-time MRI-guided biopsy is another technique under evaluation. Both approaches will allow for increasing acceptance of focal therapies, should these techniques be validated in the future.

[Intra-prostatic UroLift(®) implants for benign prostatic hyperplasia: preliminary results of the four first cases performed in France]. / Pose d'implants UroLift(®) intra-prostatiques pour hyperplasie bénigne de la prostate : résultats préliminaires des quatre premiers cas réalisés en France.

OBJECTIVES: To evaluate the feasibility, tolerance and short-term efficacy of intra-prostatic UroLift(®) implants in four patients with symptomatic benign prostatic hyperplasia. PATIENTS AND METHOD: Four patients with symptomatic BPH, already treated with alpha-blockers, were consecutively treated with intra-prostatic UroLift(®) implants under general anaesthesia. A bladder catheter was placed postoperatively. Alpha-blocker therapy was withdrawn 7 days postoperatively. The clinical and morphological characteristics of the patients were noted. Low urinary tract (IPSS) and sexual symptoms (IIEF5, MSHQ-EjD), maximum urinary flow rate and post voiding residual volume were evaluated preoperatively and at 1 month. RESULTS: Median age was of 69 [52-74] years old and median prostatic volume of 50 cm(3) [40-80]. Median procedure time was of 11 minutes [6-15]. Intra- and postoperative outcomes were uneventful. At 1 month, the mean IPSS and IPSS-QOL improvement were of 46 % and 58 %, respectively. One patient reported no improvement in his urinary and sexual symptoms. In the other three patients, the maximum urinary flow rate was improved, the post voiding residual improved in two patients and similar in one. No alteration in erection or ejaculation functions was reported. CONCLUSIONS: In our initial experience, intra-prostatic UroLift(®) implant procedure seemed feasible, efficacious for LUTS and well tolerated, especially concerning sexual outcomes. Further study of the UroLift(®) implant in France is currently being planned.

[Prebiopsy multiparametric MRI of the prostate: the end of randomized biopsies?]. / IRM mutiparamétrique de la prostate avant biopsies : la fin des biopsies systématisées ?

OBJECTIVE: To evaluate the value of multiparametric MRI-targeted prostate biopsies in patients with suspected low-risk prostate cancer. PATIENTS AND METHOD: Patients with normal digital rectal examination and a PSA level between 4 and 10 ng/mL were prospectively included. A multiparametric MRI of the prostate was performed prospectively before the biopsies. 12-core randomized biopsies were performed, with additional targeted samples in each suspicious area identified on MRI. Detected cancers and their histological characteristics were compared between those two biopsy protocols. A micro focal cancer (MFC) was defined by the presence of less than 4mm of Gleason score 3+3 cancer on a single core. RESULTS: Seventy-one consecutive patients were included. The overall detection rate was of 53% (38/71). It was of 70% (26/37) in the presence of suspicious area on MRI versus 35% (12/34) in the absence of any suspicious area (P=0.004). MRI-targeted biopsies alone detected three cancers, none of which was a MFC. 12-core biopsies alone detected 14 cancers, including ten MFC (71%). In 21 patients, prostate cancer was detected by both the MRI-targeted and 12-core biopsies. The Gleason score in the MRI-targeted area was the highest Gleason score in 90% of the cases. It was high (>6) in 76% (16/21) of the patients. CONCLUSIONS: MRI-targeted biopsies detected less micro focal cancers than randomized 12-core biopsies. They did not seem however to decrease the detection of clinically significant cancers.

[Initial assessment, follow-up and treatment of lower urinary tract symptoms related to benign prostatic hyperplasia: guidelines of the LUTS committee of the French Urological Association]. / Bilan initial, suivi et traitement des troubles mictionnels en rapport avec hyperplasie bénigne de prostate : recommandations du CTMH de l'AFU.

AIM: To elaborate guidelines for the diagnosis, the follow-up, and the treatment of benign prostatic hyperplasia (BPH). METHOD: A systematic review of the literature was conducted to select more relevant publications. The level of evidence was evaluated. Graded recommendations were written by a working group, and then reviewed by a reviewer group according to the formalized consensus technique. RESULTS: Terminology of the International Continence Society was used. Initial assessment has several aims: making sure that lower urinary tract symptoms (LUTS) are related to BPH, assessing bother related to LUTS and checking for a possible complicated bladder outlet obstruction (BOO). Initial assessment should include: medical history, LUTS assessment using a symptomatic score, physical examination including digital rectal examination, urinalysis, flow rate recording, and residual urine volume. Frequency volume chart is recommended when storage symptoms are predominant. Serum PSA should be done when the diagnosis of prostate cancer can modify the management. When a surgical treatment is discussed, serum PSA, serum creatinine and ultrasonography of the urinary tract are recommended. BPH patients should be informed of the benign and possibly progressive patterns of the disease. When LUTS cause no bother, annual follow-up should be planned. Medical treatment includes some phytotherapy agents, alpha-blockers and 5-alpha reductase inhibitors. The last two can be associated. The association of antimuscarinics and alpha-blockers can be offered to patients with residual storage symptoms when already under alpha-blockers therapy, after checking for the absence of severe BOO (residual volume more than 200mL or max urinary flow less than 10mL/s). Phosphodiesterase-5 inhibitors could be used in patients complaining for both LUTS and erectile dysfunction. In case of complication, or when medical treatment is inefficient or not tolerated, then a surgical treatment should be discussed. Treatment decision should be done according to type of LUTS and related bother, prostate anatomy, level of obstruction and its consequences on urinary tract, patient co-morbidities, experience of practitioner, and choice of patient. Surgical treatments with the higher level of evidence of efficacy include monopolar or bipolar transurethral resection of the prostate, open prostatectomy, transurethral incision of the prostate, photoselective vaporization of the prostate, and Holmium laser enuclation of the prostate. CONCLUSION: Here are the first guidelines of the French Urological Association for the initial assessment, the follow-up and the treatment of urinary disorders related to BPH.

[Initial assessment and follow-up of benign prostatic hyperplasia: systematic review of the literature by the LUTS committee of the French Urological Association]. / Bilan initial et suivi de l'hyperplasie bénigne de prostate: revue de littérature du CTMH de l'AFU.

PURPOSE: To perform an update on the initial evaluation and follow-up of benign prostatic hyperplasia (BPH). METHOD: A systematic review of recent literature was performed. Level of evidence of publications was evaluated. RESULTS AND CONCLUSIONS: Objectives of the initial evaluation are to assess the link between low urinary tract symptoms (LUTS) and BPH, to evaluate the bother associated to LUTS, assess a complicated bladder outlet obstruction (BOO), diagnose an adenocarcinoma of the prostate if it modifies the therapeutic strategy, and establish an evolutive profile of the disease. Clinical assessment with digital rectal examination, evaluation of symptoms by a dedicated questionnaire and urine analysis are the first steps of BPH evaluation. Bladder diary is useful to objective storage symptoms. Uroflowmetry and post-void residual volume assessment are useful if BOO is suspected. Measure of serum creatinine and ultrasound exam of the urinary tract are second line explorations. Urine cytology, neurological evaluation, urethrocystoscopy, urodynamics with pressure-flow studies are useful if the link between LUTS and BPH is unclear. PSA dosage is used for prostate cancer screening or as a prognostic marker of BPH evolution.

[Surgical management of benign prostatic hyperplasia by endoscopic techniques using electricity and open prostatectomy: A review of the literature by the LUTS committee of the French Urological Association]. / Traitement de l'hyperplasie bénigne de prostate par techniques endoscopiques électriques et adénomectomie voie haute : revue de littérature du CTMH de l'AFU.

PURPOSE: To perform an update on the surgical treatment of benign prostatic hyperplasia (BPH) by endoscopic electric resection and vaporization, and by open prostatectomy. METHOD: A systematic review of recent literature was performed. The level of evidence of each report was evaluated, and only recent publications of high level of evidence were included. RESULTS AND CONCLUSIONS: Both monopolar transurethral resection of the prostate (TURP) and open prostatectomy remain the gold standards. Endoscopic electric alternatives are monopolar and bipolar prostate vaporisation as well as bipolar resection. These techniques seem to show similar functional results than TURP and open prostatectomy, as well as an advantage in terms of bleeding.

An unusual presentation of penile Mondor's disease in an HIV-positive patient.

Penile Mondor's disease (PMD), or thrombosis of the dorsal vein, is an under-reported benign condition. Its aetiology is poorly understood. Clinically, it presents as a palpable cord in the dorsal vein of the penis, with pain or local discomfort, especially during erection. PMD may be diagnosed based on the medical history and physical examination. Management of the condition is conservative, with practitioners opting for various strategies including sexual/masturbatory abstinence, localised anticoagulant topical therapy and oral nonsteroidal anti-inflammatory drugs. In many cases, PMD will resolve within 4-8 weeks of presentation. Thrombectomy and resection of the superficial penile vein are applied surgically in patients refractory to the medical treatment. We describe the case of a 33-year-old patient known to have HIV who presented for severe painful dorsal induration and swelling of the proximal third of the penis. The patient had no recent history of sexual intercourse, penile trauma or other well-known risk factors for PMD. The physical examination was unequivocal, so a Doppler ultrasound was performed. A diagnosis of PMD was made and conservative treatment was prescribed. During a follow-up visit after 6 weeks, the patient had no symptoms and physical examination did not reveal anything pathological.

[Hybrid renal tumors: a report of two patients]. / Tumeurs rénales hybrides: à propos de deux patients.

PURPOSE: Renal hybrid tumors (HT) are characterized by the association of both oncocytes- and chromophobe-cells within the same tumor. They have been reported in patients with Birt-Hogg-Dube (BHD) syndrome. The aim of this report was to describe two cases of HT and summarize recent literature. PATIENT AND METHOD: Case study was summarized from the patient's medical chart. Review of literature was performed using the National Center for Biotechnology Information (NCBI) database. RESULTS: Two patients were diagnosed with multiple but small tumors of the kidney, and were treated with partial nephrectomy. Pathological analysis of these tumors showed oncocytoma-like and chromophobe-like cells intermixed in the same stroma. CONCLUSIONS: HT may constitute a spectrum of tumors between renal oncocytoma and chromophobe renal cell carcinoma. From a pragmatic management perspective, it would be appropriate to consider such tumors as chromophobe carcinoma. In case of HT, a genetic study for BHD syndrome can be proposed to family relatives.

[Laparoscopic partial nephrectomy: urology resident learning curve on a porcine model]. / Néphrectomie partielle laparoscopique: courbe d'apprentissage d'un interne en urologie sur un modèle porcin.

INTRODUCTION: Several teams have recently confirmed the technical feasibility of laparoscopic partial nephrectomy (LPN). However, this procedure is not widely performed because it is technically difficult and associated with a high rate of bleeding complications, even for experienced teams. The authors studied the LPN learning curve for urology residents using a porcine model based on analysis of the following criteria: operating time, warm ischaemia time and intraoperative and postoperative bleeding. MATERIALS AND METHODS: Forty LPN were performed by the same operator. All operations were performed after arterial clamping and heparinisation of the animal. The renal section was always the same, removing 40% of the kidney and always comprised the excretory tract. A continuous running suture on the excretory tract and interrupted sutures on the parenchyma were performed. Operating time and warm ischaemia time were recorded. Animals were monitored for ten days. Intraoperative and postoperative bleeding via drains was recorded and retrograde urography was performed on the 10th day to confirm the absence of excretory tract leaks. Linear regression statistical tests investigated a correlation between these various criteria and the number of cases performed. RESULTS: The mean total operating time, warm ischaemia time and total bleeding (intraoperative and postoperative) were 108 minutes (70-140 minutes), 38 minutes (22-50 minutes) and 95 ml (10-300 ml), respectively. Linear regression analysis revealed a direct correlation between the number of cases performed and intraoperative bleeding (p<0.001) and warm ischaemia time (p<0.001). These parameters became stable after the 10th operated case. Two cases of urine leaks were observed on D10 out of a series of 40 operations, with no correlation with the number of cases performed. CONCLUSION: The operating time and warm ischaemia time are directly correlated with the number of cases performed. Training on a porcine model appears to be a good way to reduce the learning curve in man. Ten operations are necessary to acquire the various steps of the procedure.