Laparoendoscopic Single-site Approach Research Articles

Is the robotic approach the future of distal pancreatectomy with splenectomy? A propensity score matched analysis.

Our study provides a comparative analysis of the Laparo-Endoscopic Single Site (LESS) and robotic surgical approaches for distal pancreatectomy and splenectomy, examining their cosmetic advantages, patient outcomes, and operative efficiencies through propensity score matching (PSM). We prospectively followed 174 patients undergoing either the LESS or robotic procedure, matched by cell type, tumor size, age, sex, and BMI from 2012 to 2023. Propensity score matching (PSM) was utilized for data adjustment, with results presented as median (mean ± SD). Post-PSM analysis showed no significant differences in age or BMI between the two groups. LESS approach exhibited a shorter operative duration (180(180 ± 52.0) vs. 248(262 ± 78.5) minutes, p = 0.0002), but increased estimated blood loss (200(317 ± 394.4) vs. 100 (128 ± 107.2) mL, p = 0.04). Rates of intraoperative and postoperative complications, length of hospital stay, readmissions within 30days, in-hospital mortalities, and costs were comparably similar between the two procedures. While the robotic approach led to lower blood loss, LESS was more time-efficient. Patient outcomes were similar in both methods, suggesting that the choice between these surgical techniques should balance cosmetic appeal with technical considerations.

A decade of experience with minimally invasive anti-reflux operations: robot vs. LESS.

The increasing use of robotic systems for anti-reflux operations prompted this study to evaluate and compare the efficacy of robotic and Laparo-Endoscopic Single-Site (LESS) approaches. From 2012, 228 robotic fundoplication and 518 LESS fundoplication patients were prospectively followed, analyzing perioperative metrics. Data are presented as median (mean ± SD); significance at p ≤ 0.05. Patients undergoing a robotic vs. LESS fundoplication were 67 (64 ± 13.7) vs. 61 (59 ± 15.1) years-old with BMIs of 25 (25 ± 3.2) vs. 26 (25 ± 3.9) kg/m2 (p = 0.001 and 1.00, respectively). 72% of patients who underwent the robotic approach had a previous abdominal operation(s) vs 44% who underwent the LESS approach (p = 0.0001). 38% vs. 8% had a re-operative fundoplication (p = 0.0001), 59% vs. 45% had a type IV hiatal hernia (p = 0.0004). Operative duration was 160 (176 ± 76.7) vs. 130 (135 ± 50.5) min (p = 0.0001). There were 0 (robotic) vs. 5 (LESS) conversions to a different approach (p = 0.33). 5 Patients vs. 3 patients experienced postoperative complications (p = 0.06), and length of stay (LOS) was 1 (2 ± 2.6) vs. 1 (1 ± 3.2) days (p = 0.0001). Patient symptomatic dysphagia preoperatively for the robotic vs. LESS approach was scored as 2 (2.4 ± 1.9) vs. 1 (1.9 ± 1.6). Postoperatively, symptomatic dysphagia was scored as 1 (1.5 ± 1.6) vs. 1 (1.7 ± 1.7). The change in these scores was - 1 (- 1 ± 2.2) vs. 0 (- 0.5 ± 2.2) (p = 0.004). Despite longer operative times and LOS in older patients, the robotic approach is efficient in undertaking very difficult operations, including patients with type IV or recurrent hiatal hernias. Furthermore, preoperative anti-reflux operations were more likely to be undertaken with the robotic approach than the LESS approach. The patient's postoperative symptomatic dysphagia improved relatively more than after the LESS approach. The vast majority of patients who underwent the LESS approach enjoyed improved cosmesis, thus, making LESS a stronger candidate for more routine operations. Despite patient selection bias, the robotic and LESS approaches to anti-reflux operations are safe, efficacious, and should be situationally utilized.

V08-12 Y-SHAPED INCISIONS AND THREE-FLAP UMBILICOPLASTY: A NOVEL LAPAROENDOSCOPIC SINGLE-SITE SURGICAL APPROACH FOR PATIENTS WITH SYMPTOMATIC URACHAL SINUS

You have accessJournal of UrologyNOTES/LESS (V08)1 Sep 2021V08-12 Y-SHAPED INCISIONS AND THREE-FLAP UMBILICOPLASTY: A NOVEL LAPAROENDOSCOPIC SINGLE-SITE SURGICAL APPROACH FOR PATIENTS WITH SYMPTOMATIC URACHAL SINUS Hakushi Kim, Masahiro Nitta, Masanori Hasegawa, Yoshiaki Kawamura, Sunao Shoji, Hidenori Zakoji, and Akira Miyajima Hakushi KimHakushi Kim More articles by this author , Masahiro NittaMasahiro Nitta More articles by this author , Masanori HasegawaMasanori Hasegawa More articles by this author , Yoshiaki KawamuraYoshiaki Kawamura More articles by this author , Sunao ShojiSunao Shoji More articles by this author , Hidenori ZakojiHidenori Zakoji More articles by this author , and Akira MiyajimaAkira Miyajima More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000002041.12AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: Symptomatic urachal sinuses are rare benign anomalies that affect young adults. Surgical intervention is necessary for curative treatment, but acceptable postoperative esthetic outcomes are also required in young patients. In recent years, laparoscopic surgery has largely replaced the open surgical approach and cosmetic outcomes have improved. We describe a novel laparoendoscopic single-site (LESS) surgical approach using Y-shaped incisions and three-flap umbilicoplasty to improve repair and esthetic outcomes. METHODS: We retrospectively evaluated 51 patients diagnosed with symptomatic urachal remnants at our institution between December 2014 and September 2020. We included 34 men and 17 women with a mean age of 27 years in this study. The clinical and perioperative data and esthetic outcomes of 51 patients who underwent LESS surgery were investigated. Body image and cosmesis of each patient after surgery were assessed subjectively using a self-assessment body image questionnaire (BIQ). RESULTS: The median operative time and the median insufflation time were 144 minutes (66–297 minutes) and 45 minutes (11–188 minutes), respectively. The median estimated blood loss and postoperative hospital stay were 5 mL (0–128 mL) and 4 days (2–13 days), respectively. The median body image and cosmesis scores after surgery were 19/20 and 21/24, respectively. Pictures of preoperative and postoperative umbilical appearances are depicted (Figure). CONCLUSIONS: Our novel LESS approach showed surgical feasibility for symptomatic urachal sinus. Moreover, the high postoperative BIQ scores indicated good perception of body image change and good satisfaction with postoperative cosmetic outcomes of this technique. Source of Funding: None © 2021 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 206Issue Supplement 3September 2021Page: e604-e605 Advertisement Copyright & Permissions© 2021 by American Urological Association Education and Research, Inc.MetricsAuthor Information Hakushi Kim More articles by this author Masahiro Nitta More articles by this author Masanori Hasegawa More articles by this author Yoshiaki Kawamura More articles by this author Sunao Shoji More articles by this author Hidenori Zakoji More articles by this author Akira Miyajima More articles by this author Expand All Advertisement Loading ...

Transumbilical Laparoendoscopic Single-Site Radical Hysterectomy without Uterine Manipulator and with Vaginal Closure

Study Objective Minimally invasive surgery (MIS) of radical hysterectomy (RH) was reported with inferior oncologic outcomes according to the New England Journal of Medicine (NEJM). Then some studies suggested that the no-touch technique may be a useful procedure to prevent tumor spillage as well as improve survival, and the procedures were improved continuously. Therefore, we performed RH targeting early-stage cervical cancer through laparoendoscopic single-site (LESS) approach with enclosed colpotomy and without uterine manipulator. Design A presentation of the surgery through this technical video. Setting A Hospital. Patients or Participants A 48-year-old postmenopausal woman was diagnosed as cervical cancer with stage IB1(FIGO 2018). Interventions After fully informed of the benefits and risks of different surgical approaches (open laparotomy and MIS), she agreed with the MIS. Measurements and Main Results The type C radical hysterectomy via LESS approach was performed successfully, the final pathologic findings confirmed stage IB1 cervical carcinoma. The patient recovered fast and well with slight pain, and the incision scar was hidden perfectly for cosmetic purpose. Conclusion This video demonstrated that LESS-RH with vaginal closure and without manipulator was feasible and safe. Suspension skills played a significant role in the LESS-RH. Besides, this surgery procedure also involved 4 specific techniques to prevent tumor spillage, including creation of a vaginal cuff, avoidance of interoperate uterine manipulator, standard extent and bagging of the specimen. These adaptations were meant to minimize tumor manipulation and disruption, for reducing the increased risk of recurrence. However, further verifications were still required.

Doing more with less: our decade of experience with laparo-endoscopic single site Heller myotomy supports its application.

Achalasia is a rare esophageal motility disorder that affects 1 in 100,000 individuals. Currently, laparoscopic Heller myotomy with anterior fundoplication is the 'gold standard' therapy for achalasia, alleviating symptoms by de-functionalizing the lower esophageal sphincter mechanism. The advent of the Laparo-Endoscopic Single Site (LESS) technique provides a more minimally invasive approach to Heller myotomy. With IRB approval, 179 patients who underwent LESS Heller myotomy with anterior fundoplication since 2007 have been prospectively followed. Patients self-assessed symptom frequency and severity preoperatively and postoperatively using a Likert scale (0 = never/not bothersome to 10 = always/very bothersome). Patients scored their scar satisfaction (1 = revolting to 10 = beautiful). Data are presented as median (mean ± SD). Significance was accepted with 95% probability. Fifty-one percent of patients were men, of age 55 (53 ± 17) years and BMI of 25 (25 ± 6.1) kg/m2. Patients had an operative time of 134 (135 ± 34.3) minutes with an estimated blood loss (EBL) of 50mL. Postoperative complications occurred in 18% of patients (e.g., urinary retention, capnothorax). Length of stay was 1 (2 ± 2.1) day. Preoperatively, symptoms (e.g., dysphagia, regurgitation) were frequent and severe; following myotomy, all symptoms queried were significantly less frequent and severe with follow-up of 28 (34 ± 18.4) months (p < 0.0001 for all, paired Student's t test). Eighty-seven percent of patients reported they were 'very satisfied' or 'satisfied' with their experience and 95% of patients would undergo the operation again knowing what they know now. Patients scored their satisfaction with their scar as 10 (9 ± 1.6). Heller myotomy with anterior fundoplication undertaken via the LESS approach provides efficacious, satisfactory, and durable amelioration of symptoms. Patients reported significant symptom resolution as well as satisfaction with their overall experience. Our decade of experience documenting the salutary benefits of LESS Heller myotomy should be more than enough to encourage surgeons to incorporate the approach into their armamentarium.

Laparoendoscopic Single-site Radical Hysterectomy with Vaginal Closure and without Uterine Manipulator for FIGO IB1 Cervical Cancer

Minimally invasive surgery (MIS) for radical hysterectomy (RH) has been reported with inferior oncologic outcomes in the New England Journal of Medicine [1,2]. Some studies have suggested that the no-touch technique may be a useful procedure to prevent tumor spillage and improve survival. Therefore, we performed RH targeting early-stage cervical cancer using the laparoendoscopic single-site (LESS) approach with an enclosed colpotomy and without a uterine manipulator [3]. Video demonstration of the technique. A hospital. A 48-year-old postmenopausal woman received a diagnosis of stage IB1 (International Federation of Gynecology and Obstetrics, 2018) cervical cancer [4]. After being fully informed of the benefits and risks of different surgical approaches (laparotomy and MIS), she consented to the MIS. The type C RH through the LESS approach was performed successfully. The final pathologic findings confirmed stage IB1 cervical carcinoma. The patient recovered quickly, albeit with slight pain, and the incision scar was hidden perfectly for cosmetic purposes. This video demonstrates that LESS-RH with vaginal closure and without a manipulator is feasible and safe. Suspension skills played a significant role in LESS-RH. In addition, this surgical procedure involved 4 specific techniques to prevent tumor spillage: creation of a vaginal cuff, avoidance of a uterine manipulator, standard type C radical hysterectomy, and bagging of the specimen. These adaptations were meant to minimize tumor manipulation and disruption for reducing the increased risk of recurrence. However, further verifications are still required.

Robotic laparoendoscopic single-site compared with robotic multi-port sacrocolpopexy for apical compartment prolapse

Sacrocolpopexy is a commonly performed procedure for repair of apical compartment prolapse. A Y-shaped mesh is attached to the prolapsed cervix or vagina and suspended to the anterior longitudinal ligament of the sacrum. In addition to conventional laparoscopic and multi-port robotic routes, the robotic laparoendoscopic single-site approach has emerged as a viable, feasible, and widely applicable minimally invasive approach to sacrocolpopexy. To compare robotic laparoendoscopic single-site with multi-port robotic sacrocolpopexy for women with either utero-vaginal or vaginal apical prolapse. In this single-center randomized controlled trial, 70 women at Pelvic Organ Prolapse Quantitative stages 2-4 were assigned randomly to undergo sacrocolpopexy by robotic laparoendoscopic single-site or multi-port robotic approaches from August 2017 to November 2018. Of 35 women randomized to each group, 32 underwent sacrocolpopexy. Operating time was the primary outcome of the trial. Secondary outcomes included intraoperative bleeding, length of hospitalization, pain during the first postoperative 24 hours (according to a 0-10 visual analogue scale), need for analgesics, and intraoperative and postoperative adverse events. At 6 weeks and 6 months after surgery, patients underwent a physical examination according to Pelvic Organ Prolapse Quantitative measurements, to assess the anatomical success of the surgery. The Pelvic Floor Distress Inventory-20 and Pelvic Organ Prolapse/Urinary Incontinence Sexual-12 questionnaires were administered prior to surgery and at 6-month follow-up. The Patient Scar Assessment Questionnaire and the Activity Assessment Scale were administered at 6 weeks and 6 months after the surgery. Exclusion criteria included contraindication to general anesthesia, a history of prior sacrocolpopexy, suspicious adnexal masses, suspicious thickened endometrium, and morbid obesity (body mass index of 40 kg/m2 or more). The mean age of the patients was 58.4 years. More than half of the patients (54%) had stage III prolapse. Mean total operative times were 181.3 ± 32.6 and 157.5 ± 42 minutes for robotic laparoendoscopic single-site and multi-port robotic sacrocolpopexy, respectively; the difference was 23.8 minutes (95% confidence interval, 4.2-43.4, P=.018). The mean differences in duration between the procedures were as follows: 29.8 minutes, 95% confidence interval, 9.2-50.4, P= .005 for anesthesia time; 33.1 minutes, 95% confidence interval, 16.5-49.7, P < .0001 for console time; 8.6 minutes, 95% confidence interval, 1.1-16.3, P= .025 for supracervical hysterectomy time; 8.3 minutes, 95% confidence interval, 1.8-14.8, P= 0.03 for mesh suturing and fixation to the promontory; and 4.7 minutes, 95% confidence interval, 1.5-7.7, P= .004 for peritoneum suturing. Statistically significant differences were not observed between the groups in regard to estimated blood loss, intraoperative complications, and demand for analgesics during hospital stay. Quality-of-life parameters were similar. Patients' assessments of their scars were more favorable in the robotic laparoendoscopic single-site group. For sacrocolpopexy, the operative time was longer for the robotic laparoendoscopic single-site than for the multi-port robotic approach. Both approaches are feasible, and short-term outcomes, quality-of-life parameters, and anatomic repair are comparable. Our results are generalizable only to the specific robotic platforms used in the study.

Comparison of modified transumbilical laparoendoscopic single-site nephroureterectomy and retroperitoneal laparoscopic nephroureterectomy: initial experience.

IntroductionOwing to the development of the laparoendoscopic single-site (LESS) procedure, transumbilical LESS nephroureterectomy (LESS-NU) has become a new approach for treating upper tract urothelial carcinoma.AimThe aim of this study is to introduce a modified LESS-NU procedure with bladder cuff excision for treating upper tract urothelial carcinoma (UTUC). We compared its clinical efficacy and postoperative outcomes in terms of follow-up time with traditional retroperitoneal laparoscopic nephroureterectomy (RL-NU).Material and methodsFrom May 2014 to May 2019, we performed nephroureterectomy on 42 patients using the retroperitoneal approach and a modified LESS approach. A retrospective analysis was conducted for the evaluation of the clinical and postoperative outcomes between the two groups.ResultsThe study included 25 LESS-NU and 17 RL-NU patients. All the procedures were completed successfully. The LESS-NU group had a significantly shorter mean operative time than the RL-NU group (204.4 min, 236.18 min, p = 0.005). The differences in skin incision length (2.88 cm, 8.94 cm, p < 0.001) and oral analgesic dose (n = 1.12, n = 2.75, p < 0.001) between LESS-NU and RL-NU were statistically significant.ConclusionsModified LESS-NU is a feasible and safe procedure. Compared with the retroperitoneal laparoscopic approach, the single-site approach did not alter the patients’ position. LESS-NU is a better procedure for treating UTUC than RL-NU in terms of cosmetic result and postoperative pain.

Laparoendoscopic Single-site Radical Hysterectomy: Sufficient Exposure via Effective Suspension

Study ObjectiveTo perform a radical hysterectomy for early-stage cervical cancer through laparoendoscopic single-site (LESS) approach and demonstrate if the effective suspension could achieve different exposed purposes and space extension. DesignPresentation of the surgery through this technical video. SettingHospital. InterventionsA 52-year-old menopausal woman who presented with postcoital bleeding for 3 months was diagnosed with poorly differentiated (G3) cervical squamous cell carcinoma with International Federation of Gynecology and Obstetrics stage IB1. The patient was carefully consulted about the oncologic risks of the different surgical approaches; thereafter, the LESS approach was decided with informed consent. The LESS procedures for staging surgery were completed. The estimated blood loss was 60 mL, and operation time was 250 minutes. Results of the pathology report showed G3 squamous cell carcinoma and no pelvic lymph nodes metastases. The Foley catheter was removed on the 21st day, and the bladder function recovered completely after removal. She was followed up for a year without any evidence of recurrence or complications. ConclusionBecause of technical difficulties with a limited number of hands, complex surgeries, such as radical hysterectomy, have rarely been performed using the LESS approach [1]. The dissection of vesicocervical and parametrial space is critical to radical hysterectomy, and inadequate exposure to these spaces during the procedure presents major difficulties [2]. In the video, surgery for cervical cancer was performed successfully and met the International Federation of Gynecology and Obstetrics’ standards for type C radical hysterectomy. Our video demonstrated that the varied and flexible suspension played a significant role in providing clear vision and sufficient exposure; furthermore, it was feasible, effective, and safe in the LESS approach [3,4].

Laparoendoscopic Single-site Surgery for Comprehensive Staging of Early Ovarian Cancer

To demonstrate the procedure and suspension skills of laparoendoscopic single-site (LESS) staging surgery with infrarenal para-aortic lymphadenectomy for early-stage ovarian cancer. A presentation of the surgery through this technical video. A hospital. A 45-year-old woman presented with a pelvic mass on gynecologic examination and a serum cancer antigen 125 level of 5910 U/mL (normal = <35 U/mL). A computed tomographic scan revealed a mixture of solid and cystic components (70 × 77 × 71 mm) arising from the right ovary and characterized by the "ovarian vascular pelvic" sign. Clinically early-stage ovarian cancer was suspected. Subsequently, LESS staging surgery was performed by an experienced surgeon in our department. The surgery lasted 280 minutes, and the volume of blood loss was 50 mL; there were no intra- or postoperative complications. We "hid" the incision perfectly for cosmetic purposes. The histopathologic findings supported high-grade serous ovarian cancer of the right ovary with the left fallopian tube involved as well. In addition, a total of 34 negative pelvic and 18 negative para-aortic lymph nodes were identified, and a stage of IIA was diagnosed as a result. We performed an LESS staging surgery for early-stage ovarian cancer successfully. Our video shows that the LESS approach provided feasible, cosmetic, and safe access among the selected malignant gynecologic surgery. Therefore, we have experienced that the effective suspension was an auxiliary measure for LESS lymphadenectomy. In addition, compared with multiport laparoscopy, the LESS approach could provide easier access to infrarenal para-aortic regions; furthermore, it was safe and quick to extract an unknown sample.

Targeted treatment of primary aldosteronism - The consensus of Taiwan Society of Aldosteronism.

Even with the increasing recognition of primary aldosteronism (PA) as a cause of refractory hypertension and an issue of public health, the consensus of its optimal surgical or medical treatment in Taiwan has not been reached. Our objective was to develop a clinical practice guideline that is feasible for real-world management of PA patients in Taiwan. The Taiwan Society of Aldosteronism (TSA) Task Force recognized the above-mentioned issues and reached this Taiwan PA consensus at its inaugural meeting, in order to provide updated information of internationally acceptable standards, and also to incorporate our local disease characteristics and constraints into PA management. In patients with lateralized PA, including aldosterone producing adenoma (APA), laparoscopic adrenalectomy is the 'gold standard' of treatment. Mini-laparoscopic and laparoendoscopic single-site approaches are feasible only in highly experienced surgeons. Patients with bilateral adrenal hyperplasia or those not suitable for surgery should be treated by mineralocorticoid receptor antagonists. The outcome data of PA patient management from the literature, especially from PA patients in Taiwan, are reviewed. Mental health screening is helpful in early detection and management of psychopathology among PA patients. We hope this consensus will provide a guideline to help medical professionals to manage PA patients in Taiwan to achieve a better quality of care.

Laparoendoscopic single-site nephrectomy in children: Is it a good alternative to conventional laparoscopic approach?

Minimally invasive surgery is considered to be the gold standard treatment for nephrectomy in children. In recent decades it has been proposed that laparoendoscopic single-site (LESS) surgery is a feasible alternative to perform laparoscopic nephrectomies. The aim of our study was to compare the safety and efficacy of LESS against conventional laparoscopic (CL) nephrectomy. From March 2010 to November 2012 charts of pediatric patients who underwent laparoscopic nephrectomy at our tertiary center were revised. The data from 23 nephrectomies performed by either LESS or conventional laparoscopic approach were analyzed retrospectively. A transperitoneal approach was selected for both modalities. Indications for surgery included multicystic dysplastic kidneys (MCDK), hydronephrosis, vesicoureteral reflux (VUR), and renal dysplasia. Malignancy and previous abdominal interventions were exclusion criteria. Differences with a p value less than 0.05 were considered to be statistically significant. Twenty-three laparoscopic nephrectomies were performed, 13 by CL (53.5%) and 10 by LESS (46.5%). The mean age of patients was 3.29±3.5 years. There were no significant differences in age, gender, laterality of pathology, size of the kidneys, and surgical indications between the groups (p=0.067, 0.431, 0.94, 0.644, and 0.078, respectively). The mean operative times were 120min for LESS and 132.7min for CL (p=0.334). No procedures required conversion to open surgery or to standard laparoscopy. There was one intraoperative complication in each group (p=0.845). The mean length of stay (LOS), narcotic usages, and postoperative complications were similar in both groups. To overcome technical difficulties of the LESS approach, articulated tools have been developed. However, they may be not suitable for use with younger children. Although we performed LESS nephrectomies with conventional laparoscopic instruments, in our study, LESS and CL approach were comparable in terms of operative time, analgesic therapy, LOS, and complications. LESS nephrectomy for benign kidney diseases performed by skilled laparoscopic surgeons is safe and comparable with CL technique in pediatric patients. However, although minimally invasive development pushes towards "a scar-free surgery" (see Figure), these approaches have been performed in only a few centers in the world. Prospective studies comparing both approaches are necessary to verify the advantages of LESS nephrectomy in children.

A Laparoendoscopic Single-site Surgical Approach to Laparoscopic Salpingectomy

Study ObjectiveTo demonstrate a laparoendoscopic single-site (LESS) surgical approach to salpingectomy. DesignA technical video showing step-by-step a LESS surgical approach to salpingectomy (Canadian Task Force classification level III). Institutional review board approval was not required for this study. SettingOf all gynecologic cancer types, ovarian cancer has the highest mortality rate and is the fifth leading cause of cancer deaths among women [1,2]. The leading theory of epithelial ovarian carcinogenesis indicates that serous, endometrioid, and clear cell ovarian carcinomas originated from the fallopian tube and endometrium and not directly from the ovary itself [1-10]. This has led to the use of prophylactic salpingectomy as a theoretical form of ovarian cancer risk reduction at the time of hysterectomy or as a means of tubal sterilization. Prophylactic salpingectomy does not appear to increase the risk of complications and appears to be safe [2]. Ovarian function does not seem to be compromised by salpingectomy based on serum markers or response rates with in vitro fertilization [11-16]. A LESS approach may reduce the morbidity associated with the placement of multiple ports and can improve cosmetic outcomes. Prophylactic LESS bilateral salpingo-oohorectomy was shown to be feasible and safe for high-risk patients for ovarian cancer [17]. InterventionsLaparoscopic salpingectomy at the time of hysterectomy or as a means of tubal sterilization using the LESS technique. ConclusionThis is a simple and reproducible technique for preventing major complications associated with LESS salpingectomy. This approach permits easier specimen retrieval because of the large solitary incision that is made. There is a significant improvement in cosmetic satisfaction when compared with a traditional laparoscopic approach in the setting of prophylactic risk reduction surgery [18].

Comparative study of multiport laparoscopy and umbilical laparoendoscopic single-site surgery with reusable platform for treating renal masses

IntroductionUmbilical laparoendoscopic single-site (LESS) surgery is an increasingly used modality for treating renal masses. We present a prospective comparison between LESS renal surgery and conventional laparoscopy. Material and methodA comparative paired study was conducted that evaluated the surgical results and complications of patients with renal neoplasia treated with LESS surgery (n=49) or multiport laparoscopy (n=53). The LESS approach was performed with reusable material placed in the navel and double-rotation curved instruments. An additional 3.5-mm port was employed in 69.4% of the cases. We assessed demographic data, the type of technique (nephrectomy, partial nephrectomy and nephroureterectomy), surgical time, blood loss, hemoglobin, need for transfusion, number and severity of complications (Clavien-Dindo), hospital stay, histological data and prognosis. ResultsThere were no differences in follow-up, age, sex, body mass index, preoperative hemoglobin levels or type of surgery. Conversion occurred in 2 cases (1 in each group). The surgical time was equivalent (p=0.6). Intraoperative transfusion (p=0.03) and blood loss (p<0.0001) was lower with LESS, postoperative hemoglobin levels were higher (p<0.0001) and haemostatic agents were used more frequently (p<0.0001). There were no differences in the number (p=0.6) or severity (p=0.47) of complications. The length of stay (p<0.0001), the proportion of patients with drainage (p=0.04) and the number of days with drainage (p=0.0004) were lower in LESS. Twenty-five percent of the lesions operated on with LESS were benign, but the mean size was similar in the 2 groups (p=0.5). Tumor recurrence and/or progression were more frequent in multiport laparoscopy (p=0.0013). ConclusionsUmbilical LESS surgery with reusable platform enables various surgical techniques to be performed when treating renal masses, with time consumption and safety comparable to conventional laparoscopy. The LESS approach is advantageous in terms of blood loss and hospital stay.

Laparoendoscopic Single-Site Cholecystectomy: First Experiences with a New Standardized Technique Replicating the Four-Port Technique.

After reports on laparoendoscopic single-site (LESS) cholecystectomy, concerns have been raised over the level of difficulty and a potential increase in complications when moving away from conventional gold standard multiport laparoscopy due to incomplete exposure and larger umbilical incisions. With continued development of technique and technology, it has now become possible to fully replicate this gold standard procedure through an LESS approach. First experiences with the newly developed technique and instrument are reported. Fifteen patients presenting with cholelithiasis without signs of inflammation were operated using all surgical steps considered appropriate for the conventional four-port laparoscopic approach, but applied through a single access device. Operation-centered outcomes are presented. There were no peri- or postoperative complications. Mean operating time was 32.3 minutes. No conversion to regular laparoscopy was required. The critical view of safety was achieved in all cases. Mean skin incision length was 2.2 cm. The application of a standardized technique combined with the use of a four-port LESS device allows us to perform LESS cholecystectomy, giving us a correct exposure of the structures and without increasing the mean operating time combining previously reported advantages of LESS. A universal trait of any new technique should be safety and reproducibility. This will enhance its applicability by large number of surgeons and to large number of patients requiring cholecystectomy.

Estudio comparativo entre laparoscopia multipuerto y LESS umbilical con plataforma reutilizable en el tratamiento de las masas renales

IntroductionUmbilical laparoendoscopic single-site (LESS) surgery is an increasingly used modality for treating renal masses. We present a prospective comparison between LESS renal surgery and conventional laparoscopy. Material and methodA comparative paired study was conducted that evaluated the surgical results and complications of patients with renal neoplasia treated with LESS surgery (n=49) or multiport laparoscopy (n=53). The LESS approach was performed with reusable material placed in the navel and double-rotation curved instruments. An additional 3.5-mm port was employed in 69.4% of the cases. We assessed demographic data, the type of technique (nephrectomy, partial nephrectomy and nephroureterectomy), surgical time, blood loss, haemoglobin, need for transfusion, number and severity of complications (Clavien-Dindo), hospital stay, histological data and prognosis. ResultsThere were no differences in follow-up, age, sex, body mass index, preoperative haemoglobin levels or type of surgery. Conversion occurred in 2 cases (1 in each group). The surgical time was equivalent (P=.6). Intraoperative transfusion (P=.03) and blood loss (P<.0001) was lower with LESS, postoperative haemoglobin levels were higher (P<.0001) and haemostatic agents were used more frequently (P<.0001). There were no differences in the number (P=.6) or severity (P=.47) of complications. The length of stay (P<.0001), the proportion of patients with drainage (P=.04) and the number of days with drainage (P=.0004) were lower in LESS. Twenty-five percent of the lesions operated on with LESS were benign, but the mean size was similar in the 2 groups (P=.5). Tumour recurrence and/or progression were more frequent in multiport laparoscopy (P=.0013). ConclusionsUmbilical LESS surgery with reusable platform enables various surgical techniques to be performed when treating renal masses, with time consumption and safety comparable to conventional laparoscopy. The LESS approach is advantageous in terms of blood loss and hospital stay.

Our experience of tissue glue injection in tubeless percutaneous nephrolithotomy

Our experience of tissue glue injection in tubeless percutaneous nephrolithotomy

Objective analysis of surgeons’ ergonomy during laparoendoscopic single-site surgery through the use of surface electromyography and a motion capture data glove

Adding to the ergonomic inconveniences already presented by traditional laparoscopy (LAP), laparoendoscopic single-site (LESS) surgery has been found to entail other more specific problems, including greater reduction in movement freedom, in-line vision with loss of triangulation, and greater proximity of instruments. The objective of this study was to evaluate surgeons' ergonomy during LESS surgery, through the study of muscular activity, wrist angle, and hand movements, and compare it with conventional laparoscopy. The study group was composed by 14 experienced laparoscopic surgeons, all right-handed. Each one performed dissection tasks on a physical simulator through LAP and LESS approaches. For LAP, straight laparoscopic scissors and dissector were used, whilst for LESS articulating tip scissors and dissector were chosen. During both tasks, muscular activity of biceps brachii, triceps brachii, forearm flexors and extensors, and trapezius muscles was registered through surface electromyography. Simultaneously right-hand movements and wrist angles were obtained through a motion capture data glove (CyberGlove(®)), which allowed for the use of a modified RULA test applied to the recorded angles with subsequent establishment of risk levels for the wrist joint. Muscular activity for trapezius (LAP 6.94 ± 4.12 vs. LESS 11.32 ± 4.68; p ≤ 0.05) and forearm extensor muscles (LAP 9.2 ± 2.45 vs. LESS 37.07 ≤ 16.05; p ≤ 0.001) was significantly lower in conventional laparoscopy compared with LESS approach. No statistical significance was obtained between the different sensors, except in 3 of the 11 analyzed CyberGlove(®) sensors. The modified RULA test showed a score of 3 for laparoscopy (unacceptable), whereas for LESS a score of 2 was obtained (acceptable), with statistically significant differences between them (p ≤ 0.05). The LESS approach entails greater level of muscular activity in the trapezius and forearm extensor muscles, but we have found evidences of a better wrist position during LESS compared with traditional laparoscopy.

Pediatric Varicocelectomy: A Comparative Study of Conventional Laparoscopic and Laparoendoscopic Single-Site Approaches

Laparoscopy is a common approach to manage varicoceles in both the adult and pediatric population. The purpose of this study is to report our experience and compare outcomes between conventional laparoscopy and laparoendoscopic single-site (LESS) surgery for varicocelectomy in the pediatric population. A retrospective cohort study was performed of all patients who underwent conventional laparoscopic varicocelectomy (LV) and laparoendoscopic single-site varicocelectomy (LESSV) at a single pediatric institution from December 2007 to March 2012. Patient demographics, intraoperative details, narcotic use, and complications were reviewed. LV was performed in 32 patients and LESSV in 11 patients. None had conversion to open surgery. Median age was 16 years for LV (range 12-23) and 15 years for LESSV (range 12-20), P=0.061. Median operative time was 55 minutes for LV (range 28-90) and 46 minutes for LESSV (range 33-59), P=0.037. Nine (81.8%) patients in the LESSV group and 10 (31.2%) patients in the LV group were administered narcotics in the recovery room, P=0.005. One (3.1%) patient in the LV group was administered ketorolac in the recovery room, P=1. Five patients in each group, LESSV (45.5%) and LV (15.6%), received acetaminophen in the recovery room, P=0.092. All procedures were performed on an outpatient basis except for one because of a concomitant procedure. Median follow-up was 22 months in LV and 15 months in LESSV, P=0.015. One (3.1%) postoperative hydrocele was noted after LV and 1 (9.1%) after LESSV, P=0.451. All varicoceles were clinically resolved in both groups. LESSV is comparable to LV in the pediatric population. Our initial experience indicates that the LESS approach may be more painful in the immediate postoperative period than conventional laparoscopy. The LESS technique warrants further evaluation to determine if one approach is clearly more advantageous.

Laproendoscopic single site oesophageal diverticulectomy

Epiphrenic divericula are uncommon disorders of the lower oesophagus, which are symptomatic in only 15–20% of cases. The optimum treatment modality for such cases remains an oesophageal diverticulectomy with long myotomy with or without an antireflux operation. Recently, this is increasingly being done through the laparoscopic approach. Here we describe the first reported case of oesophageal diverticulectomy through the laparoendoscopic single site approach. A 57-year-old man presented to us with 6 months history of dysphagia and regurgitation. Patient was investigated with upper gastrointestinal (UGI) endoscopy, barium swallow, CECT chest and abdomen, oesophageal manometry and 24 hour pH study. He was diagnosed to have lower oesophageal diverticulum with mildly elevated pressure readings in manometric studies with normal peristalsis. Based on his symptoms, he was taken up for surgery. A laparoscopic transhiatal oesophageal diverticulectomy with myotomy was done through laparoendoscopic single site technique. The procedure lasted 160 min. There was no intraoperative complication. Gastrograffin study was done on postoperative day 2 following which he was started on liquids. He made an uneventful recovery and was discharged on fourth day. He remained asymptomatic on follow up. Oesophageal diverticulectomy is possible through laparoendoscopic single site approach if necessary expertise is available.