Assessing returns to research investments in rice varietal development: Evidence from the Philippines and Bangladesh.

•This study estimates economic returns to investments in rice varietal development in the Philippines and Bangladesh.•The net returns to IRRI and national partners' investments remain strongly positive.•However, the returns are decreasing at a faster rate in the Philippines (24%) than in Bangladesh (6%).•IRRI and national partners should continue investing in rice R&D, especially to develop superior rice varieties.

Helping feed the world with rice innovations: CGIAR research adoption and socioeconomic impact on farmers.

Rice production has increased significantly with the efforts of international research centers and national governments in the past five decades. Nonetheless, productivity improvement still needs to accelerate in the coming years to feed the growing population that depends on rice for calories and nutrients. This challenge is compounded by the increasing scarcity of natural resources such as water and farmland. This article reviews 17 ex-post impact assessment studies published from 2016 to 2021 on rice varieties, agronomic practices, institutional arrangements, information and communication technologies, and post-harvest technologies used by rice farmers. From the review of these selected studies, we found that stress-tolerant varieties in Asia and Africa significantly increased rice yield and income. Additionally, institutional innovations, training, and natural resource management practices, such as direct-seeded rice, rodent control, and iron-toxicity removal, have had a considerable positive effect on smallholder rice farmers' economic well-being (income and rice yield). Additional positive impacts are expected from the important uptake of stress-tolerant varieties documented in several Asian, Latin American, and African countries.

Transvesical Laparoendoscopic Single-Site Management of Distal Ureter During Laparoscopic Radical Nephroureterectomy.

Objective: To describe the management of the distal ureter during radical nephroureterectomy with the transvesical laparoendoscopic single-site surgery (T-LESS) approach. Methods: Between January 2010 and October 2013, five patients underwent laparoscopic radical nephroureterectomy for upper urinary tract carcinoma (UTUC) with the T-LESS approach. Patients were placed in the supine position. A 2.5-cm skin incision was made in the line between the pubis and the umbilicus. The bladder was identified and a multiport was inserted into the bladder. The patients were repositioned to a lateral decubitus position; pneumovesicum was established and the ureteral openings were identified. We marked the bladder cuff with electrocautery all the way through to the extravesical fat. The bladder defect was sealed with sutures. After checking for any leak or bleeding, the multiport was removed and the bladder was closed. At this point, we continued with nephrectomy by standard laparoscopy or LESS. A 18F Foley catheter was placed into the bladder. Results: The mean age was 70 years (range 58-81 years), the mean operative time was 198 minutes (range 115-390 minutes), the mean time for the management of the distal ureter was 35 minutes (range 27-45 minutes), the mean estimated blood loss was 234 mL (range 60-850 mL), and the mean hospital stay was 3.8 days (range 2-8 days). In all patients the bladder cuff was free of disease. Conclusion: The transvesical laparoendoscopic single-site approach to the distal ureter for UTUC appears safe and reproducible, with faster closure of the bladder defect and improved cosmesis.

Household survey data of adoption of improved varieties and management practices in rice production, Ecuador.

This article provides a description of an agricultural household survey data of rice growers collected in Ecuador between October 2014 and March 2015. The household survey was implemented using a structured questionnaire administered among 1028 households in the main rice production areas of Ecuador (i.e. Guayas, Los Rios, Manabi, and El Oro provinces). Information collected was provided by household heads (male or female) and included household and plot level data. The survey information includes household socio-demographic characteristics (e.g. age, education, gender, main economic activity, etc.), farm characteristics (e.g. farm land size, assets ownership, other crops planted, etc.), rice management practices (e.g. variety and input use, production costs, etc.), and rice production and utilization (e.g. yields, prices, sales, etc.). Additional socio-economic context variables were also recorded such as government subsidies to rice production, participation in rural organizations, and food security related questions. The dataset contains a total of 6288 variables among numeric, categorical and string variables. The dataset is shared publicly on the Harvard dataverse site and provide access to questionnaires, the complete data and a brief report.

Returns to food and agricultural R&D investments in Sub-Saharan Africa, 1975-2014.

Research-enabled growth in agricultural productivity is pivotal to sub-Saharan Africa's overall economic growth prospects. Yet, investments in research and development (R&D) targeted to many national food and agricultural economies throughout Africa are fragile and faltering. To gain insight into what could be driving this trend, this article updates, summarizes and reassesses the published evidence on the returns to African agricultural R&D. Based on a compilation of 113 studies published between 1975 and 2014 spanning 25 countries, the reported internal rates of return (IRRs) to food and agricultural research conducted in or of direct consequence for sub-Saharan Africa averaged 42.3%py. In addition to the 376 IRR estimates, the corresponding 129 benefit-cost ratios (BCRs) averaged 30.1. Most (96.5%) of the returns-to-research evaluations are of publicly performed R&D, and the majority (87.6%) of the studies were published in the period 1990-2009. The large dispersion in the reported IRRs and BCRs makes it difficult to discern meaningful patterns in the evidence. Moreover, the distribution of IRRs is heavily (positively) skewed, such that the median value (35.0%py) is well below the mean, like it is for research done elsewhere in the world (mean 62.4%py; median 38.0%py). Around 78.5% of the evaluations relate to the commodity-specific consequences of agricultural research, while 5.5% report on the returns to an "all agriculture" aggregate. The weight of commodity-specific evaluation evidence is not especially congruent with the composition of agricultural production throughout Africa, nor, to the best that can be determined, the commodity orientation of public African agricultural R&D.

Glenohumeral Synovial Chondromatosis.

A 20-year-old, right hand-dominant man reported to physical therapy with a history of deep anterior left shoulder pain. Radiographs, which were obtained after physical therapy was initiated, and subsequent magnetic resonance imaging showed the presence of numerous radio-opaque loose bodies that followed bone signal characteristics dispersed throughout the glenohumeral joint, leading to a diagnosis of synovial chondromatosis. J Orthop Sports Phys Ther 2016;46(9):809. doi:10.2519/jospt.2016.0414.

Incremental Effects of Telephone Call Center and Healthcare Utilization Database Use to Improve Follow-up Rate in the Prevention of Low Back Pain in the Military Trial.

BACKGROUND: Studies that have relied exclusively on web-based surveys to secure follow-up have yielded inadequate follow-up rates, resulting in the need to explore whether supplementing with other methods results in incremental improvements. The primary purpose of this study was to determine the effectiveness of each follow up strategy that was used to collect the follow up data in our ongoing Prevention of Low Back Pain in the Military (POLM) trial. METHODS: This study represents a secondary analysis of the POLM trial. Twenty companies of Soldiers (N=4,325) were cluster randomized to complete one of four exercise programs. Since web-based response rates were lower than anticipated, a telephone call center was established to contact Soldiers who had not responded to the web-based survey. A military healthcare utilization database (M2) was also used to capture additional follow-up. Descriptive statistics and pairwise comparisons were performed to determine the incremental benefits of supplementing the primary web-based follow-up strategy in our ongoing POLM trial and determine whether differences existed in demographic characteristics, pain intensity, and low back pain incidence based on follow-up strategy. RESULTS: Of the 4,325 Soldiers who were enrolled, 632 (14.6%) subjects completed the monthly web-based survey only; 571 (13.2%) responded only to the telephone call; and 233 (5.4%) responded to both the web-based and telephone survey. Adding the telephone call center contributed 804 unique contributions to follow-up, increasing the overall follow-up to 33.2% (n=1,436) and resulting in a net 18.6% increase in follow-up rate. Querying the M2 database yielded follow-up data for an additional 2,788 Soldiers, increasing the follow-up rate by 64.5%. This rate, combined with the web-based and telephone strategies, resulted in an overall follow-up rate of 97.7%. Compared to the web-based survey, those who responded to the telephone call center tended to be younger, white, have a lower income, more likely to smoke, more likely to exercise regularly, and less likely to have low back pain (all with P<.05). CONCLUSIONS: The results of this study can inform the design of future clinical trials by establishing the benefit of supplementing a web-based survey with a telephone call center to secure additional follow-up.

Robotic repair of vesicovaginal fistulae with the transperitoneal-transvaginal approach: A case series

Objective To describe a novel technique of repairing the VVF using the transperitoneal-transvaginal approach. Materials and Methods From June 2011 to October 2013, four patients with symptoms of urine leakage in the vagina underwent robotic repair of VVF with the transperitoneal-transvaginal approach. Cystoscopy revealed the fistula opening on the bladder. A ureteral stent was placed through the fistulous tract. After trocar placement, the omental flap was prepared and mobilized robotically. The vagina was identified and incised. The fistulous tract was excised. Cystorrhaphy was performed in two layers in an interrupted fashion. The vaginal opening was closed with running stitches. The omentum was interposed and anchored between the bladder and vagina. Finally, the ureteral catheters were removed in case they have been placed, and an 18 Fr urethral catheter was removed on the 14th postoperative day. Results The mean age was 46 years (range: 41 to 52 years). The mean fistula diameter was 1.5 cm (range 0.3 to 2 cm). The mean operative time was 117.5 min (range: 100 to 150 min). The estimated blood loss was 100 mL (range: 50 to 150 mL). The mean hospital stay was 1.75 days (range: 1 to 3 days). The mean Foley catheter duration was 15.75 days (range: 10 to 25 days). There was no evidence of recurrence in any of the cases. Conclusions The robot-assisted laparoscopic transperitoneal transvaginal approach for VVF is a feasible procedure when the fistula tract is identified by first intentionally opening the vagina, thereby minimizing the bladder incision and with low morbidity. .

Robotic repair of vesicovaginal fistulae with the transperitoneal-transvaginal approach: a case series.

OBJECTIVE: To describe a novel technique of repairing the VVF using the transperitoneal-transvaginal approach. MATERIALS AND METHODS: From June 2011 to October 2013, four patients with symptoms of urine leakage in the vagina underwent robotic repair of VVF with the transperitoneal-transvaginal approach. Cystoscopy revealed the fistula opening on the bladder. A ureteral stent was placed through the fistulous tract. After trocar placement, the omental flap was prepared and mobilized robotically. The vagina was identified and incised. The fistulous tract was excised. Cystorrhaphy was performed in two layers in an interrupted fashion. The vaginal opening was closed with running stitches. The omentum was interposed and anchored between the bladder and vagina. Finally, the ureteral catheters were removed in case they have been placed, and an 18 Fr urethral catheter was removed on the 14th postoperative day. RESULTS: The mean age was 46 years (range: 41 to 52 years). The mean fistula diameter was 1.5 cm (range 0.3 to 2 cm). The mean operative time was 117.5 min (range: 100 to 150 min). The estimated blood loss was 100 mL (range: 50 to 150 mL). The mean hospital stay was 1.75 days (range: 1 to 3 days). The mean Foley catheter duration was 15.75 days (range: 10 to 25 days). There was no evidence of recurrence in any of the cases. CONCLUSIONS: The robot-assisted laparoscopic transperitoneal transvaginal approach for VVF is a feasible procedure when the fistula tract is identified by first intentionally opening the vagina, thereby minimizing the bladder incision and with low morbidity.

Robotic bilateral inguinal lymphadenectomy in penile cancer, development of a technique without robot repositioning: a case report.

INTRODUCTION: Inguinal lymphadenectomy is the treatment of choice for patients with penile cancer and inguinal lymph node metastases. We describe the performance of the robotic bilateral inguinal lymphadenectomy technique without repositioning the robot in a patient with penile carcinoma and high risk for nodal metastases and no palpable lymph nodes. MATERIALS AND METHODS: A 64-year-old male patient was diagnosed with penile cancer (TNM: T3 N 0 M 0) and underwent a total penectomy with perineal urethrostomy. We performed a robotic bilateral inguinal lymphadenectomy four weeks after the penectomy. RESULTS: The entire procedure was performed with the robot-assisted technique. The operative time, median estimated blood loss, and hospital stay was 360 min, 100 ml (50 ml in the right side and 150 ml in the left side), and three days, respectively. Metastatic nodes were present in both inguinal regions, with a yield of 19 lymph nodes on the right and 14 on the left. The patient presented with a left-side lymphocele that was drained at follow-up. No other complications were reported. CONCLUSION: Robotic bilateral inguinal lymphadenectomy secondary to penile cancer is feasible, safe, and provides a good performance. Prospective studies are required to include a larger number of patients and long-term monitoring to assess the results of this procedure in comparison with open and laparoscopic techniques.

Robot-assisted intrafascial simple prostatectomy: novel technique.

PURPOSE: We describe our initial experience with intrafascial robot-assisted simple prostatectomy (IF-RSP). Potential advantages include reduced blood loss, elimination of the need for postoperative bladder irrigation, and elimination of the risk of residual or future prostate cancer, without interrupting potency or continence. PATIENTS AND METHODS: From June 2011 to March 2012, 10 patients with symptomatic prostatomegaly on transrectal ultrasonography (TRUS) (mean 81 g) underwent IF-RSP. Three patients had acute urinary retention. Demographic perioperative and outcome data were recorded up to 1 month follow-up. RESULTS: Average age was 71.7 years (range 60-79 years), estimated blood loss was 375 mL (range 150-900 mL), operative time was 106 minutes (range 60-180 min), hospital stay was 1 day (range 0-3 days), and Foley catheter duration was 8.9 days (range 6-14 days). The drain was removed at a mean 2.8 days (range 0-8 days). Mean prostate volume on preoperative TRUS was 81 cc (range 47-153 cc). Mean specimen weight was 81 g (range 50-150 g). Improvement was noted in the International Prostate Symptom Score (preoperative vs postoperative 18.8 vs 1.7) and peak flow rate (12.4 vs 33.49 mL/min). Sexual Health Inventory for Men score ranged from 12 to 24. All patients were completely continent within 1 month postoperatively, and sexual function was preserved. One patient had urinary tract infection and one patient needed blood transfusion postoperatively. CONCLUSIONS: IF-RSP appears to be a feasible procedure in large-volume prostatomegaly. The entire prostate tissue is removed without compromising continence and potency. Larger series and longer-term follow-up are needed to evaluate the proper place of this approach.

Laparoscopic anatrophic nephrolithotomy: developments of the technique in the era of minimally invasive surgery.

BACKGROUND AND PURPOSE: The complete removal of the stone is the ultimate goal in management, a result that might not be attained even after several sessions of percutaneous nephrolithotomy (PCNL) and/or extracorporeal shockwave lithotripsy (SWL) and/or retrograde intrarenal surgery (ureteroscopy). The objective of this study is to assess our technique of anatrophic nephrolithotomy, with decreased renal ischemia and reduced patient morbidity. PATIENTS AND METHODS: From 2007 to 2010, we performed eight anatrophic laparoscopic nephrolithotomies in adult patients with staghorn renal calculus. The mean patient age was 49 years (range 35-62 y). The mean stone size was 53 mm (range 35-70 mm). All patients had complex renal calculi, with stones occupying more than 80% of the caliceal system. In all cases, a Double-J stent was placed before surgery. After clamping the hilum, the incision was made laterally and longitudinally through full thickness of cortex using a laparoscopic scalpel. A running cortical suture was performed with Hem-o-lok reinforcement. Renal function was assessed in three patients, using renography with technetium-99m-diethylenetriaminepentacetic acid (99mTc-DTPA), before and 3 months after the surgery. RESULTS: Procedures for all patients were completed laparoscopically. The mean operative time was 142.5 minutes, and the mean warm ischemia time was 20.8 minutes. The estimated blood loss was 315 mL. The hospital stay average was 3.5 days. Only one patient had a complication--a vascular fistula with permanent postoperative hematuria. This patient subsequently underwent successful endovascular embolization. Residual stones were identified in 37% of cases (three patients) during follow-up imaging at 15 days. There were minimal changes on serum creatinine values. CONCLUSIONS: Laparoscopic surgery is feasible when anatrophic nephrolithotomy is indicated. This technique minimizes the barriers of an open flank incision, while achieving excellent stone-free rates. This minimally invasive technique should be considered for complex stones that would necessitate multiple renal access tracks and secondary procedures.

Robotic extended pyelolithotomy for complete staghorn calculus.

Staghorn stones represent a therapeutic challenge to urologists. We present our experience with laparoscopic extended pyelolithotomy for treatment of staghorn and complex renal calculi in highly selected cases. This approach provides the principles of open surgery with the advantages of minimally invasive surgery. We describe our experience with robot-assisted extended pyelolithotomy for complex coralliform calculi. Since January 2007, robotic extended pyelolithotomy has been performed by transperitoneal approach in two patients with complete coralliform lithiasis (calculi average size 8 cm). One patient had history of percutaneous nephrolithotomy. Demographic and operative data were collected. All procedures were technically successful without need for open conversion. Mean estimated blood loss was 175 ml (range 50-300 ml), and mean operative time was 150 min (range 120-150 min). A perinephric drain was employed in one patient with duration of 5 days. Postoperative imaging confirmed complete stone clearance. Robotic extended pyelolithotomy is a feasible and reproducible procedure for removal of complete and partial staghorn calculi in selected patients with complex nephrolithiasis. This approach might limit the role of open surgery for these calculi, but further publications with more cases are necessary to further define its utility.

NOTES hybrid transvaginal radical nephrectomy for tumor: stepwise progression toward a first successful clinical case.

BACKGROUND: Natural orifice translumenal endoscopic surgery (NOTES) has been used to perform nephrectomy in the laboratory; however, clinical reports to date have used multiple abdominal trocars to assist the transvaginal procedure. OBJECTIVE: To present our stepwise technique development and the first successful clinical case of NOTES transvaginal radical nephrectomy for tumor with umbilical assistance without extraumbilical skin incisions. DESIGN, SETTING, AND PARTICIPANTS: The four transvaginal NOTES procedures were performed at two institutions after obtaining institutional review board approval. Various operative steps were developed experimentally in three clinical cases, and on March 7, 2009, we performed the first successful case of NOTES hybrid transvaginal radical nephrectomy without any extraumbilical skin incisions. Using one multichannel access port in the vagina and one in the umbilicus, laparoscopic visualization, intraoperative tissue dissection, and hilar control were performed transvaginally and transumbilically. The intact specimen was extracted transvaginally. MEASUREMENTS: All perioperative data were accrued prospectively. A stepwise progression to the successful completion of the fourth case is systematically presented. RESULTS AND LIMITATIONS: Intraoperatively, at incrementally more advanced stages of the procedure, the first three NOTES clinical cases were electively converted to standard laparoscopy because of rectal injury during vaginal entry, of failure to progress, and of gradual bleeding during upper-pole dissection after transvaginal hilar control, respectively. The fourth case was successfully completed via transvaginal and umbilical access without conversion to standard laparoscopy. Operative time was 3.7 h, estimated blood loss was 150 cm(3), and hospital stay was 1 d. Final pathology confirmed a 220-g, pT1b, 7-cm, grade 2, clear-cell renal cell carcinoma with negative margins. The patient was readmitted for an intraabdominal collection that responded to drainage and antibiotics. CONCLUSIONS: We report our stepwise progression and the initial successful clinical case of NOTES hybrid transvaginal radical nephrectomy for tumor, assisted with only one umbilical trocar. Although transvaginal nephrectomy is feasible in the highly selected patient with favorable intraoperative circumstances, considerable refinements in technique and technology are necessary if this approach is to advance beyond mere anecdote.

Molleja de pollo: un nuevo modelo para entrenamiento laparoscópico de la anastomosis uretrovesical / Chicken gizzard: a new training model for laparoscopic urethrovesical anastomosis

Objetivo: Crear un modelo animal simple, económico y reproducible que presente una nueva opción de entrenamiento para la realización de la anastomosis vesicouretral durante la prostatectomía radical laparoscópica. Material y métodos: La creación y la experimentación se llevaron a cabo durante 2008. Se utilizaron diferentes materiales: caja de entrenamiento laparoscópico, cámara de vídeo, monitor, porta agujas, suturas y pollos no eviscerados de más de 2 kg de peso. El modelo fue elaborado con una nueva percepción de una estructura similar a la pelvis humana. Para la anastomosis se utilizó la molleja (cuello vesical) y el recto (uretra). Con el modelo en la caja, en condiciones anatómicas muy similares a los procedimientos reales, se realizó la experimentación con la anastomosis. La calidad de la anastomosis se evaluó mediante una prueba de impermeabilidad y endoscopia transanal. Resultados: El área de trabajo fue muy similar a la de la pelvis humana. Tejidos de calidad, textura y diámetro similares a los de la uretra (recto) y el cuello vesical (molleja) ofrecen la posibilidad de practicar la anastomosis y la “raqueta anterior”. Conclusiones: El modelo es simple, fácil, asequible, económico y reproducible. La anatomía del pollo, así como las características de sus tejidos, permite el entrenamiento en condiciones muy similares a las realizadas en casos humanos (AU)

Objective: To create a simple, inexpensive, and reproducible model that would provide a new training option for performing urethrovesical anastomosis during laparoscopic radical prostatectomy. Material and methods: Design and experimentation were carried out in 2008. Materials employed included a laparoscopic training box, video camera, monitor, needle holder, sutures, and non-eviscerated chickens weighing more than 2 kilograms. The model was prepared with a new vision of a structure similar to the human pelvis. To create the anastomosis, we used the gizzard (bladder neck) and the rectum (urethra). Once the model was placed in the box, the anastomosis was performed in very similar anatomical conditions to those in real procedures. The anastomosis quality was assessed by means ofan impermeability test and transanal endoscopy. Results: The operating field is very similar to the human pelvis. Tissues with a quality, texture, and diameter resembling those of the urethra (rectum) and the bladder neck (gizzard) offer the possibility of practicing anastomosis and anterior racket. Conclusions: The model for urethrovesical anastomosis using the chicken gizzard and rectum is simple, easy, available, inexpensive and reproducible. The anatomy of the chicken and the characteristics of its tissues allow for training under conditions very similar to those present in human cases (AU)

Laparoendoscopic single-site surgery simple prostatectomy: initial report.

OBJECTIVES: To report the first case and detailed technique of laparoendoscopic single-site (LESS) surgery simple prostatectomy for benign hypertrophy. METHODS: A 67-year-old man presented with acute urinary retention requiring catheterization. Serum prostate-specific antigen level was 5 ng/mL, and a biopsy revealed benign hypertrophy with a transrectal ultrasound volume estimation of 110 mL. LESS simple prostatectomy was performed using a single multilumen port inserted through a solitary 2.5-cm intraumbilical incision. Standard laparoscopic ultrasonic shears and needle drivers, articulating scissors, and specifically designed bent grasping instruments facilitated dissection and suturing. RESULTS: An R-port was placed intraperitoneally through a 2.5-cm intraumbilical incision. No extraumbilical skin incisions were made. Total operative time was 120 minutes and estimated blood loss was 200 mL. A closed suction drain was externalized through the umbilical incision. No intraoperative or postoperative complications occurred. Hospital stay was 2 days, the retropubic drain was removed at 3 days, and the catheter removed at 1 week. Specimen weight was 95 g and final pathology revealed benign prostatic hyperplasia. At 3 months follow-up, the patient was completely continent and voiding spontaneously with a Q(max.) of 85 mL/s. CONCLUSIONS: We demonstrate technical feasibility and describe the detailed surgical technique of LESS simple prostatectomy. Our initial experience suggests that this technique may be an alternative for large-volume benign prostatic hyperplasia in lieu of open surgery. Comparative studies with other surgical techniques will determine its place in the surgical armamentarium of benign prostatic hyperplasia.

[Laparo-endoscopic single site (LESS)]. / Laparo-endoscopia por acceso único: experiencia inicial.

OBJECTIVE: We present our initial experience in laparo-endoscopic single site (LESS) surgery, through multichannel port, articulated instruments and standard instruments adapted others adapted for the procedures. MATERIALS AND METHODS: Between February and October 2008, 28 LESS surgical procedures with multi-port were performed (Transumbilical simple prostatectomy (PSTU) and transvesical (PSTV), simple nephrectomy (NS), Enterocystoplasty augmentation (ECA) and simple hysterectomy (HS)). The clinical data were collected prospectively and analyzed retrospectively. Was used access device Multichannel (R-Port). The procedures were performed for a single surgeon (RS). The surgical technique was the same route used by conventional laparoscopic. RESULTS: Twenty-eight surgeries were performed: PSTU (01), PSTV (20), NS (01), ECA (01), HS (05). The incision was performed umbilical or infraumbilical. Only one case (nephrectomy) needed it placement of an additional trocar. The average age by procedure was PSTU and PSTV, 67- and 68-year-old (57-89 y) respectively; NS 12 year-old; RCT 20-year-old; HS 46.4-year-old (41 - 54 y). The operative time was: PSTU 120 minutes, PSTV 91 minutes (45-210 min); NS 120 minutes: RCT 300 minutes; HS 112 minutes(90-160 min). The operative bleeding was PSTU and PSTV 200 cc. and 337 cc (50-1500 cc) respectively; NS 100 cc; EAC 100 cc; HS 118 cc (100-160 cc). The complication was haematury in two cases of PSTV, both patients required exploration postoperative endoscopic with satisfactory evolution. CONCLUSIONS: LESS is a feasible and reproducible surgical option in uro-gynecologic surgical treatment. Further studies, experience and follow-up will provide an objective assessment of the technique.

[Experience initial right side laparoscopic live donor]. / Experiencia inicial de nefrectomía derecha de donante vivo por laparoscopia.

UNLABELLED: Live donor nephrectomy laparoscopic technique is now standard. However, the right side is controversial because of the short length of the renal vein and the incidence of venous thrombosis. METHODS: A prospective study of patients live donors since May 2006 to September 2008 in which right nephrectomy was performed by laparoscopic live donor. The placement of trocares was usual and the transperitoneal approach. Incision was used for the extraction of Gibson. RESULTS: Of the 10 selected patients, 1 was excluded due to conversion to open technique. The criteria for lateralization were sex, renal volume and complex vascular anatomy. 6 patients had made back-table reconstruction surgery with prosthetic vascular due to the length of the renal vein. The average operative time was 158.3 minutes and the bleeding averaged 272 cc. Warm ischemia time averaged 3.2 minutes. The average hospital stay was 1.6 days. 1 recipient presenting delayed graft dysfunction. CONCLUSIONS: Laparoscopic live donor right nephrectomy offers an excellent quality of graft, being a technique feasible and safe, maintaining the principle of leaving the best kidney donor.

Laparoscopic augmentation enterocystoplasty through a single trocar.

OBJECTIVES: To report on the initial case and surgical technique of laparoendoscopic, single-site, subtotal cystectomy and augmentation enterocystoplasty performed through a single multichannel transumbilical port in a patient with neurogenic bladder. METHODS: Laparoendoscopic, single-site, subtotal cystectomy and augmentation enterocystoplasty was performed in a 20-year-old woman with neurogenic bladder secondary to congenital sacral lipoma that had been operated on at 2 years of age. The patient had a long history of urinary incontinence and frequent and urgent urination. The imaging and urodynamic studies revealed a 100-mL bladder capacity with thickened walls, countless diverticula, and low compliance. The procedure was performed exclusively using a novel multichannel access port. Additional instruments included the 5-mm video laparoscope, SonoSurge, and flexible scissors. Subtotal cystectomy was initially performed by resecting 70% of the bladder. The ileal loop was exteriorized through the single port by detaching the valve, and the ileal pouch and bowel continuity were restored extracorporeally. The vesicoileal anastomosis was performed laparoscopically. RESULTS: The operating time was 300 minutes, and the blood loss was <100 mL. No intraoperative or postoperative complications developed. The hospital stay was 6 days. The drain and Foley catheter were removed at 7 and 21 days postoperatively, respectively. Postoperative cystography confirmed a watertight anastomosis and increased bladder capacity. At last follow-up, the patient was performing intermittent self-catheterization to complete emptying. CONCLUSIONS: Our initial experience with laparoendoscopic, single-site, subtotal cystectomy and enterocystoplasty through a single port was encouraging. The use of the larger diameter port significantly facilitated extracorporeal bowel reconstruction and can be used for various minimally invasive surgical procedures.

Laparo-endoscopia por acceso único: experiencia inicial / Laparo-endoscopic single site (LESS)

Objetivo: Presentar nuestra experiencia inicial en LESS Surgery (Laparo-Endoscopic Single Site Surgery/Cirugía laparoendoscópica por acceso único), mediante uso de dispositivo multicanal, instrumentos estándar, articulables y otros adaptados para la consecución de los procedimientos. Materiales y métodos: Entre febrero y septiembre del 2008 se realizaron 28 procedimientos quirúrgicos LESS con puerto multicanal: prostatectomía simple transumbilical (PSTU) y transvesical (PSTV), nefrectomía simple (NS), enterocistoplastia de aumento (ECA) e histerectomía simple (HS). Los datos clínicos fueron recopilados de manera prospectiva y analizados retrospectivamente. Se utilizó dispositivo de acceso multicanal (R-Port). Los procedimientos fueron realizados en un centro por un solo cirujano (RS). La técnica quirúrgica empleada correspondió a la misma utilizada por vía laparoscópica convencional. Resultados: Se realizaron 28 intervenciones quirúrgicas: PSTU (01), PSTV(20), NS(01), ECA(01), HS(05). La incisión de acceso fue realizada a nivel umbilical o infraumbilical. Solo un caso (nefrectomía) ameritó uso de trocar adicional de 2 mm. La edad media en años por procedimiento fue: PSTU, 67; PSTV, 68 (57–89); NS, 12; ECA, 20; HS, 46.4 (41–54). El tiempo quirúrgico medio en minutos fue: PSTU, 120; PSTV, 91 (45–210); NS, 120; ECA, 300; HS, 112 (90–160). El sangrado operatorio fue: PSTU, 200cc; PSTV, 337 cc (50-1500); NS, 100cc; EAC, 100cc; HS, 118cc. (100–160). La complicación observada fue hematuria profusa en dos casos de PSTV, ambos pacientes requirieron exploración postoperatoria con evolución satisfactoria. Conclusiones: LESS es una alternativa factible y reproducible en patología uroginecológica de resolución quirúrgica. Mayores estudios, experiencias y seguimiento permitirán la evaluación objetiva de esta técnica (AU)

Objetive: We present our initial experience in laparo-endoscopic single site (LESS) surgery, through multichannel port, articulated instruments and standard instruments adapted others adapted for the procedures. Materials and methods: Between February and October 2008, 28 LESS surgical procedures with multi-port were performed (Transumbilical simple prostatectomy (PSTU) and transvesical (PSTV), simple nephrectomy (NS), Enterocystoplasty augmentation (ECA) and simple hysterectomy (HS)). The clinical data were collected prospectively and analyzed retrospectively. Was used access device Multichannel (R-Port). The procedures were performed for a single surgeon (RS). The surgical technique was the same route used by conventional laparoscopic. Results: Twenty-eight surgeries were performed: PSTU (01), PSTV (20), NS (01), ECA (01), HS (05). The incision was performed umbilical or infraumbilical. Only one case (nephrectomy) needed it placement of an additional trocar. The average age by procedure was PSTU and PSTV, 67 and 68 year-old (57-89 y) respectively; NS 12 year-old; RCT 20 year-old; HS 46.4year-old (41 – 54 y). The operative time was: PSTU 120 minutes, PSTV 91 minutes (45-210 min); NS 120 minutes; RCT 300minutes; HS 112 minutes (90-160 min). The operative bleeding was PSTU and PSTV 200 cc. and 337 cc (50-1500 cc) respectively; NS 100cc; EAC 100 cc; HS 118 cc (100-160 cc). The complication was haematury in two cases of PSTV, both patients required exploration postoperative endoscopic with satisfactory evolution. Conclusions: LESS is a feasible and reproducible surgical option in uro-gynecologic surgical treatment. Further studies, experience and follow-up will provide an objective assessment of the technique (AU)