Meta analysis of the efficacy of umbilical laparoendoscopic single-site surgery and conventional laparoscopic appendectomy in the treatment of pediatric acute appendicitis / 中华内分泌外科杂志

Objective:To analyze the effects of umbilical laparoendoscopic single-site surgery (U-LESS) and conventional laparoscopic appendectomy (CLS) on the treatment of acute appendicitis in children by using Meta-analysis. To evaluate the effectiveness and safety of U-LESS in treating acute appendicitis in children.Methods:The English databases Pubmed, Web of Science, the Cochrane Library, Clinical trials, CNKI, Weipu Database, Wanfang Medical Network Database, CBM literature and other Chinese databases were retrieved, and the relevant literature of the comparative study of U-LESS and CLS in the treatment of pediatric acute appendicitis was found, and the quality analysis and application of the selected comparative studies were carried out. RevMan5.3 and stata software were employed to compare the operation time, intraoperative blood loss, postoperative exhaust time, postoperative intestinal recovery time, incision length, postoperative hospital stay time, postoperative complications, etc. of different surgical procedures.Results:A total of 19 literature were included in this study, and a total of 2133 cases were included, including 1021 cases in the U-LESS group and 1112 cases in the CLS group, all of which were retrospective case-control studies. Meta analysis showed that the operation time in U-LESS was shorter than that in CLS (95%CI [-9.05, -3.17], Z=4.07, P<0.001) , and the intraoperative bleeding volume of U-LESS was less than that of CLS (95%CI [-15.28, -5.01], Z=3.87, P<0.001) , incision length was shorter in U-LESS than in CLS (95%CI [-1.40, -1.27], Z=39.30, P<0.001) , the postoperative exhaust time of U-LESS was shorter than that of CLS (95%CI [-8.63, -5.89], Z=10.37, P<0.001) , and the recovery time after U-LESS was shorter than that after CLS (95% CI, 95% CI, P<0.001) . U-LESS and CLS did not differ significantly in postoperative length of stay (95%CI [-1.33, -0.64], Z=5.61, P<0.001) . U-LESS had fewer postoperative complications compared with CLS (95%CI [0.24,0.52], Z=5.27, P<0.001) . Conclusion:For pediatric acute appendicitis, U-LESS is safe and feasible, and has the advantages of shortening the operation time and reducing intraoperative bleeding.

Selection of instruments related to gynecological single-site laparoscopic surgery / 中国实用妇科与产科杂志

In this paper,the author introduced the evolution of instruments related to gynecological singlesite laparoscopic surgery,from the perspective of historical development,focusing on the advantages and disadvantages of related instruments and the reasons for their improvement,as well as the impact on the development of gynecological single-site laparoscopic surgery.It is helpful for readers to better choose the appropriate instruments on the basis of understanding the relevant history.

Evaluation of effect on ovarian cyst removal by laparoendoscopic single site surgery and enhanced recovery after surgery / 中国内镜杂志

Objective?To evaluate the effect on removal of ovarian cyst by laparoendoscopic single site surgery and enhanced recovery after surgery (ERAS).?Methods?A prospective, single-institution study was performed for patients who were diagnosed benign ovarian cyst, underwent removal ovarian cyst, and adopted ERAS nursing care from June 2015 to June 2017. 40 patients who adopted laparo-endoscopic single site surgery were experimental group and 40 patients who adopted traditional laparoscopy surgery were control group. We compared the operation time, blood loss volume during operation, the time of getting out-of bed after operation, the postoperative exhausting time, the defecation time after surgery, the incidence of postoperative febrile and other complications, the time of hospital stay, and hospitalization expenses between the two groups. The measurement data was tested by t test, and the counting data was tested by χ2 test, which was statistically significant with P < 0.05.?Results?The results showed that the time of getting out-of bed after operation, the postoperative exhausting time, the defecation time after surgery and the time of hospital stay in experimental group was significantly shorter than the control group;Meanwhile the hospitalization expense was lower than the control group. These results were statistically significant (P < 0.05). While there was not statistically significant in the operation time, blood loss volume during operation, and the incidence of postoperative febrile and other complications between the experimental group and the control group (P > 0.05) .?Conclusion?ERAS combined with laparo-endoscopic single site surgery is helpful to the reduction of hospitalization cost and the clinical promotion and application.

Curative effect of laparoendoscopic single-site surgery for benign ovarian tumor / 中国内镜杂志

Objective To investigate the clinical value of single hole laparoscopy in treatment of ovarian benign neoplasms. Methods The patients with benign ovarian tumors treated from February 2014 to August 2016 were divided into two groups, 41 cases in each. The observation group received laparoendoscopic single-site surgery, while the control group was treated with traditional porous laparoscopic gynecologic surgery. The operation effect, intraoperative and postoperative complications, postoperative ovarian function and cosmetic satisfaction were observed and recorded in the two groups. Results The operation of the two groups was smooth and there were no intraoperative or postoperative complications. The operation time and postoperative satisfaction degree of the observation group were significantly higher than that of the control group (P < 0.05). The postoperative exhaust time, postoperative hospital stay, postoperative 24 h and 72 h, VAS scores of the observation group were significantly lower than those of the control group (P < 0.05). The estradiol levels in the two groups were significantly lower than those before operation, and the levels of follicule-stimulating hormone and luteinizing hormone were significantly higher than those before operation (P < 0.05). There were no significant differences in the amount of bleeding between the two groups and the levels of estradiol, follicule-stimulating hormone and luteinizing hormone before and after the operation (P > 0.05). Conclusion The laparoendoscopic single-site surgery technique is better than the porous laparoscopic technique in the treatment of benign ovarian tumors, and it is worthy of popularization and application.

Single-Site Robotic Radical Hysterectomy and Sentinel Lymphnode Biopsy in Cervical Cancer: A Case Report / Histerectomia radical robótica de portal único e biópsia de linfonodo sentinela: relato de caso

ABSTRACT Robotic surgeries for cervical cancer have several advantages compared with lapa-rotomic or laparoscopic surgeries. Robotic single-site surgery has many advantages compared with the multiport approach, but its safety and feasibility are not established in radical oncologic surgeries. We report a case of a Federation of Gynecology and Obstetrics (FIGO) stage IB1 cervical carcinoma whose radical hysterectomy, sentinel lymph node mapping, and lymph node dissection were entirely performed by robotic single-site approach. The patient recovered very well, and was discharged from the hospital within 24 hours.

RESUMO A cirurgia robótica para carcinoma do colo do útero apresenta vantagens quando comparada com cirurgias laparotômicas ou laparoscópicas. A cirurgia robótica de portal único tem muitas vantagens quando comparada com cirurgias de múltiplos acessos, porém a segurança e a viabilidade deste procedimento ainda não estão estabelecidas para cirurgias oncológicas radicais. Apresentamos um caso de carcinoma de colo do útero, tratado por histerectomia radical, identificação e biópsia de linfonodo sentinela e linfadenectomia pélvica realizada totalmente por cirurgia robótica de acesso único. A paciente recuperou-se bem e recebeu alta no primeiro dia pós-operatório.

Clinical retrospective control study of single-port laparoendoscopic and multi-port laparoscopic ovarian cystectomy / 中华妇产科杂志

Objective To investigate clinical outcomes of laparoendoscopic single-site ovarian cystectomy compared with traditional multi-port laparoscopic ovarian cystectomy. Methods Data of 81 patients with ovarian cystectomy from January 2016 to May 2017, the single-site group (n=40) and the multi-port group (n=41) in Peking Union Medical College Hospital were retrospectively collected. The outcomes of single-site and multi-port groups were analyzed and compared, including: postoperative fever, operation time, blood loss, hemoglobin change, surgical complications, postoperative pain score, postoperative analgesic requirements, body image scale and cosmetic score, length of hospital stay, postoperative total cost. Results No complication was found in two groups. No difference was found in postoperative fever, blood loss, hemoglobin change, postoperative pain score, length of hospital stay, and total cost between the two groups(all P>0.05).Operation time was(50±20)minutes in single-site group,and (40 ± 15) minutes in multi-port group; postoperative analgesic requirements was 28%(11/40) in single-site group,and 7%(4/41)in multi-port group;cosmetic score was 22.6±2.6 in single-site group,and 17.3±2.6 in multi-port group;body image scale was 5.7±1.2 in single-site group,and 6.2±1.2 in multi-port group;these four clinical parameters were statistical differences(all P<0.05).Conculsion Laparoendoscopic single-site ovarian cystectomy is feasible and safe,although it could′t relieve the postoperative pian,it do offer a higher cosmetic satisfaction.

Robotic laparoendoscopic single-site (LESS) zero-ischemia partial nephrectomy: a preliminary report / 中华泌尿外科杂志

Objective This study is to explore the safety,feasibility and efficacy of robotic laparoendoscopic single-site(LESS) zero-ischemia partial nephrectomy.Methods Two patients underwent robotic laparoendoscopic single-site zero-ischemia partial nephrectomy by our urologic surgical team at 22-May-2017 and 31-May-2017 in our institution.The salient patient demographics and tumor characteristics,including age,gender,body mass index (kg/m2),Charlson Co-morbidity Index (Age-weighted),tumor laterality,diameter (cm),R.E.N.A.L.nephrometry score and preoperative split renal function GFR [ml/(min · 1.73 m2)] were:73/56,female/male,25.2/19.8,2/0,lcft/right,1.8/1.4,5a/4a,left 43.8、right 49.2/left 38.8 、right 48.7 respectively.A 2-3 cm longitudinal skin incision was made at 4 cm below the inferior margin of rib arch at the level of midaxillary line (case NO.1) or peri-umbilicus (case NO.2).The da Vinci Si robotic Single-siteTM Port was inserted.The line of Toldt was incised with the colon medially mobilized.Gerota's fascia was opened,the main renal artery or its branches were dissected,then the renal mass fully dissected and exposed.The renal mass was entirely removed with approximately 0.5-1.0 cm surrounding normal renal parenchyma (unclamping in case NO.1,and selective branch clamping in case NO.2) and kidney reconstruction was conducted with 1-0 Quill Suture via hem-o-lock sliding technique.Results The two procedures were smoothly completed without any extra skin incision.Operative duration,estimated blood loss and skin incision length was respectively 230/190 min,100/60 ml,3.6/2.5 cm.Duration of two selective renal artery branches clamping in case NO.2 was 39 and 24 min.Postoperative pain measured by the visual analog pain scale (VASP) at day 1,day 2,day 3 was 5/4,3/3,2/1,Time off oral intake,duration of drainage and length of stay after surgery was 2/4 d、2/4 d、6/7d,respectively.The recovery of both patients were uncomplicated and discharged smoothly.Pathological examination revealed oncocytoma in case NO.1 and papillary renal cell carcinoma in case NO.2.Conclusions The initial experience shows the robotic laparoendoscopic single-site zero-ischemia partial nephrectomy is a safe,feasible and efficacious procedure.It may exhibit clinical benefits for patients in terms of pain control,convalescence and cosmesis,but in this early stage the clinical indications should be strictly controlled.

Single-port versus conventional laparoscopic surgery in treatment of tubal pregnancy: a meta-analysis / 中国内镜杂志

Objective To evaluate the safety, feasibility and other potential advantages of laparoendoscopic single-site surgery (LESS) compared to conventional laparoscopic surgery (CLS) for tubal pregnancy. Methods We manually searched Pubmed, the Cochrane Library, web of science, CNKI and China Biology Medicine for the relevant references about comparison of single-port laparoscopic salpingectomy with multi-port laparoscopic salpingectomy in the treatment of tubal pregnancy. The quality of the studies was evaluated, then meta-analysis was conducted using RevMan 5.3 software. Result Eventually, 2 RCTS and 14 retrospective studies including a total of 1541 cases were identi昀ed. The results of the meta-analysis for LESS versus CLS were as follows: a longer operative time [WMD=8.54, 95%CI (2.43, 14.64), P = 0.006], no significant differences in terms of total complications [OR= 0.68, 95%CI (0.27,1.71), P = 0.410]/operative blood loss [WMD = -0.01, 95%CI (-2.51,2.48), P = 0.990]/gastrointestinal function recovery time [WMD = -0.45, 95%CI (-1.72,0.82), P = 0.490], but shorter hospital stay [WMD=-0.40, 95% (-0.75, -0.06), P = 0.020], less postoperative analgesic treatment [OR= 0.38, 95%CI (0.22,0.67), P = 0.000]. Conclusions LESS for surgical treatment of tubal pregnancy is safe and feasible with shorter hospitalstay, less postoperative pain. LESS may therefore be a feasible alternative of CLS in the surgical approach of tubal pregnancy.

Clinical application of intra-abdominal exposure instruments in laparoendoscopic single-port nephrectomy / 中华泌尿外科杂志

Objective To evaluate the feasibility and clinical efficacy of intra-abdominal exposure instruments in laparoendoscopic single-port nephrectomy(LESS-N).Method From February 2012 to July 2016,61 cases of LESS-N were performed in our center.There were 34 males and 27 females with a mean age of (60.3 ± 9.4) years old (ranging 36-72 years old).There were thirty-nine cases of renal tumors and twenty two cases of nonfunctioning kidney.The patients were divided into two groups.Group A included 39 cases that underwent conventional LESS-N (22 radical nephrectomy/17 simple nephrectomy).Group B included 22 cases that underwent intra-abdominal exposure instruments assisted LESS-N (17 radical nephrectomy/5 simple nephrectomy).The perioperative and postoperative data were collected and analyzed retrospectively.Results All the procedures of these two groups were completed successfully.In Group A,four patients were added one 5 cm additional trocar and two patients were converted to open surgery.No additional trocars or conversion to open surgery were needed in Group B.For LESS radical nephrectomy,there were no significant differences of mean tumor diameter (5.7cm vs.5.4 cm,P =0.65) between two groups.The average operative time was (95.1 ± 43.9) min in Group B which was lower than that in Group A (127.4 ± 61.9) min (P ＜ 0.01).The mean renal vascular processing time was declined from (25.4 ± 10.1)rmin in Group A to (18.8 ± 8.9)min in Group B (P ＜ 0.05).The mean estimated blood loss was (128.6 ± 51.1) ml in Group A and (98.7 ±-57.6) ml in Group B (P ＜ 0.05).No severe intraoperative and postoperative complications occurred in both group.Conclusions Intra-abdominal exposure instruments are feasible and effective for LESS-N.This system may shorten the operation time,reduce the amount of bleeding and improve surgical accuracy.

Prospective randomized comparison of transumbilical two-port laparoscopic and conventional laparoscopic varicocele ligation / 亚洲男科学杂志(英文版)

We have established a novel method named transumbilical two-port laparoscopic varicocele ligation (TTLVL) for varicocele, which is still needed to evaluate. In this study, 90 patients with left idiopathic symptomatic varicoceles of grades II-III according to the Dubin grading system were randomly assigned to TTLVL (n = 45) and conventional laparoscopic varicocele ligation (CLVL) (n = 45). The demographic, intraoperative, postoperative, and follow-up data were recorded and compared between the two groups. All the procedures in the two groups were completed successfully with no intraoperative complications and no conversions to open surgery. No significant difference was found in the operative time, resuming ambulation, bowel recovery, postoperative hospital stay, and postoperative resolution of scrotal pain between the two groups (P > 0.05). However, the postoperative mean visual analog pain scale scores for TTLVL group were all less at 24 h, 48 h, 72 h, and 7 days postoperatively compared to CLVL (P = 0.001, 0.010, 0.006, and 0.027, respectively). The mean patient scar assessment questionnaire score in postoperative month 3 was 29.7 for TTLVL group compared with 32.1 for CLVL group (P < 0.001). There was no testicular atrophy observed in both groups during the follow-up period. The study shows that TTLVL is a safe, feasible, and effective minimally invasive surgical alternative to CLVL for the treatment of varicocele. Compared with CLVL, TTLVL may decrease postoperative pain and improve the cosmetic outcomes.

Transurethral assistant transumbilical laparoendoscopic single-site radical prostatectomy / 亚洲男科学杂志(英文版)

The laparoendoscopic single-site (LESS) technique is the latest technical innovation in laparoscopic surgery to undergo exponential development in urology. This study undertaken to illustrate our initial experience LESS radical prostatectomy (RP) and analyze early outcomes. Nineteen patients diagnosed with prostate cancer underwent LESS-RP in our institute. The patients were divided into two groups: conventional LESS and transurethral assistant LESS. Preoperative, perioperative, postoperative, pathologic, and functional outcomes data were assessed. With the help of a transurethral assistant, the mean operation and anastomosis time were decreased markedly. No focal positive margins were encountered. No prostate-specific antigen recurrence was detected 1 month postoperatively. Complete continence recovery (no pad) was observed in 32% of the patients at 1 month after the operation. No intraoperative and postoperative complications were reported. LESS-RP is a feasible and effective surgical procedure for treatment of prostate cancer. Moreover, transurethral assistant LESS could reduce the difficulty of LESS-RP and shorten the operation time.

Single port access laparoscopic surgery for large adnexal tumors: Initial 51 cases of a single institute

OBJECTIVE: Investigation of initial 51 cases of single port access (SPA) laparoscopic surgery for large adnexal tumors and evaluation of safety and feasibility of the surgical technique. METHODS: We retrospectively reviewed the medical records of the first 51 patients who received SPA laparoscopic surgery for large adnexal tumors greater than 10 cm, from July 2010 to February 2015. RESULTS: SPA adnexal surgeries were successfully completed in 51 patients (100%). The mean age, body mass index of the patients were 43.1 years and 22.83 kg/m², respectively. The median operative time, median blood loss were 73.5 (range, 20 to 185) minutes, 54 (range, 5 to 500) mL, and the median tumor diameter was 13.6 (range, 10 to 30) cm. The procedures included bilateral salpingo-oophorectomy (n=18, 36.0%), unilateral salpingo-oophorectomy (n=14, 27.45%), and paratubal cystectomy (n=1, 1.96%). There were no cases of malignancy and none were insertion of additional ports or conversion to laparotomy. The cases with intraoperative spillage were 3 (5.88%) and benign cystic tumors. No other intraoperative and postoperative complications were observed during hospital days and 6-weeks follow-up period after discharge. CONCLUSION: Our results suggest that SPA laparoscopic surgery for large adnexal tumors may be a safe and feasible alternative to conventional laparoscopic surgery.

Laparoendoscopic single-site nephrectomy and standard laparoscopic partial nephrectomy: A comparison of clinical eeficacy / 第二军医大学学报

Objective To compare the clinical outcomes of laparoendoscopic single-site (LESS) and traditional standard laparoscopy partial nephrectomy surgery, so as to investigate the characteristics, safety, feasibility, advantages and disadvantages of LESS nephrectomy surgery. Methods The same surgical group completed 12 cases of LESS partial nephrectomy from August 2009 to February 2015; 22 cases who received standard laparoendoscopic partial nephrectomy in the same period served as controls; two groups had similar tumor size and DAP scores. The clinical data were retrospectively analyzed to compare the clinical efficacies of the two groups. Results All procedures were completed successfully without conversion to open cases in the two groups. The body mass index, tumor size or DAP scores were not statistically different between the both groups (P>0. 05). The bowel recovery time, pain score, and cutouts satisfaction scores of LESS group were significantly different between the two groups ([1. 50 ± 0. 71] d vs [2. 45±± 0. 96] d, 3. 5 ± 1. 2 vs 4. 3 ± 0. 9, and 8. 1 ± 1. 8 vs 2 ± 2. 1, P0. 05). The renal glomerular filtration rate (GFR) was measured with99mTc-DTPA before and 1 month after the operation, and the GFR of LESS and standard laparoendoscopic groups had a decrease of (3. 7 ± 8. 6) mL/min and (8. 9 ± 10. 1) mL/min, respectively, showing no significant difference (P>0. 05). Conclusion The LESS nephrectomy is safe and effective, which has a similar outcome with standard laparoendoscopic partial nephrectomy when the tumor is small and in a good position.

Public perception of "scarless" laparoendoscopic single-site surgery in gynecology

OBJECTIVE: To investigate the public perception of laparoendoscopic single-site surgery (LESS) according to the age group. METHODS: An anonymous questionnaire about the desire for cosmesis and the preference for LESS in treatment of benign gynecologic diseases was provided to healthy volunteers (n=102). The survey participants were divided into two age groups (young women 40 years). The desire for cosmesis was assessed using a validated scale, Body Image Scale. RESULTS: All of the participants completed the questionnaire. The Body Image Scale scores were not different between the two age groups (11.5+/-3.5 vs. 11.8+/-4.0, P=0.656). The most common fear of surgery was the risk of complications in both age groups (69% in the young age group and 65% in the middle-aged group). Unless the operative risk increased, most of the participants (61% to 67%) in both age groups preferred LESS. Their choice was influenced by reduced scarring (43% to 61%), more safety (20% to 39%), reduced postoperative pain (8% to 10%), and new technology (4% to 6%). CONCLUSION: Based on these results, there was no difference in the desire for cosmesis and perception of LESS according to the age. Therefore, physicians should discuss and consider LESS even in middle-aged women.

Laparoendoscopic single-site versus conventional laparoscopic surgery for ovarian mature cystic teratoma

OBJECTIVE: To compare the intraoperative and postoperative outcomes of laparoendoscopic single-site surgery (LESS) versus conventional laparoscopic surgery in women with ovarian mature cystic teratoma. METHODS: A retrospective review of 303 women who underwent LESS (n=139) or conventional laparoscopic surgery (n=164) due to ovarian mature cystic teratoma was performed. Intra- and postoperative outcomes were compared between the two groups. RESULTS: There was no intergroup difference in age, body weight, height, body mass index, comorbidities, tumor size, bilaterality of tumor, or the type of surgery. However, more patients in the LESS group had a history of previous abdominal surgery (19.4% vs. 6.7%, P=0.001). Surgical outcomes including operating time (89 vs. 87.8 minutes, P=0.734), estimated blood loss (69.4 vs. 68.4 mL, P=0.842), transfusion requirement (2.2% vs. 0.6%, P=0.336), perioperative hemoglobin level change (1.3 vs. 1.2 g/dL, P=0.593), postoperative hospital stay (2.0 vs. 2.1 days, P=0.119), and complication rate (1.4% vs. 1.8%, P=0.999) did not differ between LESS and conventional groups. Postoperative pain scores measured using a visual analogue scale were significantly lower in the LESS group at 8 hours (P=0.021), 16 hours (P=0.034), and 32 hours (P=0.004) after surgery, and 32 of 139 patients (23%) in the LESS group and 78 of 164 patients (47.6%) in the conventional group required at least one additional analgesic (P<0.001). CONCLUSION: LESS was feasible and showed comparable surgical outcomes with conventional laparoscopic surgery for women with ovarian mature cystic teratoma. LESS was associated with less postoperative pain and required less analgesia.

Hybrid laparoscopic myomectomy: A novel technique

The objective of this study was to report on a new surgical technique, hybrid laparoscopic myomectomy that integrates the advantages of transumbilical laparoendoscopic single-site surgery and those of isobaric laparoscopy, and the initial experience with 14 cases. All of the procedures were performed by a single surgeon who has over 18 years of experience in laparoscopic surgery and 4 years of experience in laparoendoscopic single-site surgery. All cases of hybrid laparoscopic myomectomy were completed safely and effectively without conversion to conventional laparoscopic procedure. The median operative time was 75 minutes (range, 30 to 100 minutes). No postoperative complication was observed. The findings show that hybrid laparoscopic myomectomy is a safe and feasible surgical technique, and therefore can be a feasible, minimally invasive alternative to either abdominal or laparoendoscopic single-site surgery myomectomy.

Total hysterectomy of laparoendoscopic single site surgery / 中华妇产科杂志

Objective To explore the operation skills of laparoendoscopic single site surgery ( LESS) of total hysterectomy , to expand the application of LESS in the field of in gynecologic surgery . Methods A total of 23 cases of total hysterectomy were completed under laparoendoscopic single site surgery in Peking Union Medical College Hospital from January 2012 to August 2013, applying with combination of the traditional laparoscopic and special LESS apparatuses , intelligent electronic coagulation and excision device and the self-fixed absorbable sutures ( V-LOC).The datas of the patients during the operations and the follow-up were recorded and analyzed Results Twenty-three cases LESS-TH are accomplished.The weight of uterus was (230+38) g.The operation time was (73+22) minutes, with the intraoperative blood loss (99 ±53) ml.The postoperative intestinal function recovery time was (13 +4) hours, and postoperative hospitalized time was ( 1.8 ±0.6 ) days, with the postoperative pain visual analogue scale 3.9 ±1.6.There were no complications reported during intraoperative and postoperative time.All of our patients was finished the follow-up from 14 d to 2 months.As usual, vaginal discharge is normal, wound healed well, most of the wounds healing (19/23) hidden in umbillicus, no obvious scar, vaginal stub wound healed well Conclusions ( 1 ) LESS can accomplish total hysterectomy of uterus of gestational age less than 8 weeks safely and effectively .( 2 ) Combination of traditional laparoscopic and special LESS appatatuses , the use of intelligent energy devices and V-LOC to suture vaginal stub could make the total hysterectomy by LESS much easier and safer .

Standard laparoscopic vs laparoendoscopic single-site nephrectomy for benign nonfunctioning kidney: A comparison of therapeutic outcomes / 第二军医大学学报

Objective To compare the therapeutic outcomes of standard laparoscopic and laparoendoscopic single-site (LESS) nephrectomy for benign nonfunctioning kidney. Methods From September 2009 to August 2013, a single urologist group in our center performed 72 transperitoneal laparoscopic nephrectomies for benign nonfunctioning kidney, with 50 undergoing LESS (group A) and 22 undergoing standard laparoscopic surgery (group B). The clinical data of the two groups were analyzed and the therapeutic outcomes were compared between the two groups. Results The operation was successfully performed in all cases, with no conversion to open surgery. Compared with standard laparoscopic group, the LESS group had significantly lower postoperative pain score (4.3 ± 1.0 vs 3.7 ± 0.8, P = 0.015), quicker bowel function recovery ([58.1 ± 16.1] hvs [49.2 ± 14.0] h, P = 0.032) shorter drainage duration ([3.9 ± 1.5] dvs [2.8 ± 1.1] d, P = 0.003), shorter post-operative hospital stay ([7.3 ± 3.1] d vs [6.3 ± 3.4] d, P = 0.048), and a better cosmetic satisfaction score (7.4 ± 0.9 vs 8.0 ± 0.6, P = 0.001). The operative time and intraoperation blood loss were not significantly different between the two groups. Conclusion Compared to standard laparoscopic nephrectomy, transumbilical LESS nephrectomy offers a quicker recovery of bowel function, shorter drainage duration, a better postoperative pain control, and a better cosmetic satisfaction for benign nonfunctioning kidney, but its long-term therapeutic effect needs to be further verified.

Transperitoneal laparoendoscopic single-site nephrectomy combined with flexible 3-D laparoscope for partial nephrectomy in pigs: A preliminary experience / 第二军医大学学报

Objective: To use transperitoneal laparoendoscopic single-site (LESS) partial nephrectomy combined with flexible 3-D laparoscope for partial nephrectomy in pigs, and to introduce our experience on LESS training in a pig model for partial nephrectomy. Methods: A male pig was given general anesthesia and was put in a supine position. A 3.5 cm incision was made through the right abdominal rectus. A multi-channel QuadPort(Olympus™) was established. Artificial pneumoperitoneum was created by 14 mmHg(1 mmHg=0.133 kPa); the lower pole and the kidney pedicle of the right kidney were isolated. The lower pole of the right kidney was resected after the renal artery was blocked. Figure-8 sutures were used to close the wound, with no notable bleeding noticed after opening the blood. The specimen was enclosed in an endoscopic pouch and pulled out from the incision. Results: The procedure was smoothly completed without any extra incision. The operating time was 47 min; the period of renal artery occlusion was 21 min (5 min for resection, 16 min for stitching); and the intraoperative blood loss was 20 mL. There was no complication during the operation. Conclusion: Our initial experience shows that 3D-LESS partial nephrectomy procedure is technically difficult, but it is safe, feasible and effective. Flexible 3D laparoscopy can provide clear 3D visualization, improving the operating accuracy and reducing the fighting of instruments. The pig model used in this study can help surgeons to obtain experience on 3D-LESS partial nephrectomy.

Transperitoneal 3D laparoendoscopic single-site (LESS) nephrectomy: The first clinical case in China / 第二军医大学学报

Objective To summarize our experience on the first clinical case of transperitoneal 3D laparoendoscopic single- site(LESS) nephrectomy in mainland China, and to assess its safety and feasibility after obtaining the informed consents. Methods On August 5, 2013, we performed a 3D LESS nephrectomy using Karl Storz 3D endoscope and a multi-channel Quad- Port (Olympus™) through a 3 cm skin incision at our institute. The patient was a 69 years old man, with a body mass index (BMI) of 27. 7 kg/m2 and a preoperative serum creatinine level of 81 μmol/L. 99mTc DTPA was used to determine the glomerular filtration rate(GFR). The preoperative unilateral renal functionwas 65 mL/min for the left side and 9. 5 mL/min for the right side. And therefore he was diagnosed as "right kidney severe hydrocephalus" and received right nephrectomy. A 3 cm external retus incision was made at the umbilicus level at 1 cm site. After dissection of the renal pedicle blood vessels the renal blood vessels, the ureterogonadal packet was left en bloc and transected at the level when crossing the common iliac vessels. The kidney was extracted through the original incision after the skin incision was extended to 4 cm. Results The procedure was smoothly completed without any extra skin incision. The operating time was 154 min, with an estimated blood loss of 150 mL. The gastrointestinal function recovered on the first day after operation. Postoperative serum creatinine level on the first day was 76 μmol/L. Donor Visual Analog Pain Scores at postoperative day 1, 2 and 3 were 2/10, 1/10 and 0/10, respectively. The recovery of the patient was uneventful and he was discharged on the 3rd postoperative day. Conclusion Transperitoneal 3D laparoendoscopic single-site nephrectomy is safe, feasible and effective. It has the clinical benefits of less pain, rapid recovery and small incision. The procedure allows for a strong stereo perception, accurate manipulation, and a decreased demand for hand-eye coordination of hand, with a promising clinical future. But more clinical experience needs to be accumulated through more cases.