Objectives: This study aims to explore the clinical significance of lateral pelvic sentinel lymph node biopsy (SLNB) using indocyanine green (ICG) fluorescence navigation in laparoscopic lateral pelvic lymph node dissection (LLND) and evaluate the accuracy and feasibility of this technique to predict the status of lateral pelvic lymph nodes (LPLNs). Methods: The clinical and pathological characteristics, surgical outcomes, lymph node findings and perioperative complications of 16 rectal cancer patients who underwent SLNB using ICG fluorescence navigation in laparoscopic LLND in the Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College during April 2017 and October 2022 were retrospectively collected and analyzed. The patients did not receive preoperative neoadjuvant radiotherapy and presented with LPLNs but without LPLN enlargement (MRI showed the maximum short axes of the LPLNs were ≥5 mm and <10 mm at first visit). Results: All 16 patients were successfully performed SLNB using ICG fluorescence navigation in laparoscopic LLND. Three patients underwent bilateral LLND and 13 patients underwent unilateral LLND. The lateral pelvic sentinel lymph nodes (SLNs) were clearly fluorescent before dissection in 14 patients and the detection rate of SLNs for these patients was 87.5%. Lateral pelvic SLN metastasis was diagnosed in 2 patients and negative results were found in 12 patients by frozen pathological examinations. Among the 14 patients in whom lateral pelvic SLNs were detected, the dissected lateral pelvic non-SLNs were all negative. All dissected LPLNs were negative in two patients without fluorescent lateral pelvic SLNs. The specificity, sensitivity, negative predictive value, and accuracy was 85.7%, 100%, 100%, and 100%, respectively. Conclusions: This study indicates that lateral pelvic SLNB using ICG fluorescence navigation shows promise as a safe and feasible procedure with good accuracy. This technique may replace preventive LLND for locally advanced lower rectal cancer.

Background Recently, totally laparoscopic (TLAP) surgery has suggested its potential on ileostomy reversal. This study aimed to compare the short-term outcomes between TLAP and traditional open ileostomy reversal. Patients and methods From September 2016 to September 2021, 107 eligible patients underwent TLAP (n = 48) or open (n = 59) loop ileostomy reversal were retrospectively enrolled. Surgical parameters, postoperative recovery and complications were identified and compared between TLAP technique vs. open surgery. Results The operation time and estimated blood loss showed no obvious difference between TLAP and open group. However, TLAP reversal significantly decreased the incision length (4.5cm vs. 6cm, P < 0.001). Furthermore, patients underwent TLAP surgery showed quicker first ground activities (1 day vs. 2 days, P < 0.001), faster first flatus passage (2 days vs. 3 days, P = 0.004) and shorter postoperative stay (5 days vs. 7 days, P = 0.007). More importantly, postoperative complications were significantly reduced after TLAP reversal (3 cases vs. 10 cases, P = 0.026). Further logistic regression analyses also indicated the TLAP technique was associated with lower incidence of complications (OR=3.316, CI, 1.118–9.835; P = 0.031). Conclusions TLAP surgery is competitive in promoting postoperative recovery as well as reducing complications compared to the traditional open ileostomy reversal.

Background An innovative instrument for laparoscopy using indocyanine green (ICG) allows easy detection of sentinel lymph nodes (SLNs) in lateral pelvic lymph nodes (LPLNs). Here, we investigated the safety and efficacy of lateral pelvic SLN biopsy (SLNB) using ICG fluorescence navigation in advanced lower rectal cancer and evaluated the sensitivity and specificity of this technique to predict the status of LPLN. Methods From April 1, 2017 to December 1, 2020, we conducted lateral pelvic SLNB using ICG fluorescence navigation during laparoscopic total mesorectal excision and lateral pelvic lymph node dissection (LLND) in 23 patients with advanced low rectal cancer who presented with LPLN but without LPLN enlargement. Data regarding clinical characteristics, surgical and pathological outcomes, lymph node findings, and postoperative complications were collected and analyzed. Results We successfully performed the surgery using fluorescence navigation. One patient underwent bilateral LLND and 22 patients underwent unilateral LLND. The lateral pelvic SLN were clearly fluorescent before dissection in 21 patients. Lateral pelvic SLN metastasis was diagnosed in 3 patients and negative in 18 patients by frozen pathological examination. Among the 21 patients in whom lateral pelvic SLN was detected, the dissected lateral pelvic non-SLNs were all negative. All dissected LPLNs were negative in two patients without fluorescent lateral pelvic SLN. Conclusion This study indicated that lateral pelvic SLNB using ICG fluorescence navigation shows promise as a safe and feasible procedure for advanced lower rectal cancer with good accuracy, and no false-negative cases were found. No metastasis in SLNB seemed to reflect all negative LPLN metastases, and this technique can replace preventive LLND for advanced lower rectal cancer.

在结直肠癌手术中,部分患者常需行回肠袢式造口预防术后吻合口漏.尽管造口还纳手术相对简单,但并发症仍难以避免.近年来,腹腔镜技术因其手术创伤小,术后恢复快与并发症少等优点,逐渐应用在造口还纳手术中,并取得了令人满意的疗效.本综述就腹腔镜技术在造口还纳手术中的作用进行分析,并进一步探讨完全腹腔镜技术的应用潜力,以期为腹腔镜造口还纳技术的临床应用提供新思考.

PurposeRecently, totally laparoscopic ileostomy reversal (TLAP) has received increasing attention and exhibited promising short-term outcomes. The aim of this study was to detail the learning process of the TLAP technique.MethodsBased on our initial experience with TLAP from 2018, a total of 65 TLAP cases were enrolled. Demographics and perioperative parameters were assessed using cumulative sum (CUSUM), moving average, and risk-adjusted CUSUM (RA-CUSUM) analyses.ResultsThe overall mean operative time (OT) was 94 min and the median postoperative hospitalization period was 4 days, and there was an estimated 10.77% incidence rate of perioperative complications. Three unique phases of the learning curve were derived from CUSUM analysis, and the mean OT of phase I (1–24 cases) was 108.5 min, that of phase II (25–39 cases) was 92 min, and that of phase III (40–65 cases) was 80 min, respectively. There was no significant difference in perioperative complications between these 3 phases. Similarly, moving average analysis indicated that the operation time was reduced significantly after the 20th case and reached a steady state after the 36th case. Furthermore, complication-based CUSUM and RA-CUSUM analyses indicated an acceptable range of complication rates during the whole learning period.ConclusionOur data demonstrated 3 distinct phases of the learning curve of TLAP. For an experienced surgeon, surgical competence in TLAP can be grasped at around 25 cases with satisfactory short-term outcomes.

Objective:To explore the short-term outcomes of totally laparoscopic left hemicolectomy with overlapping delta-shaped anastomosis through the tunnel of terminal ileal mesentery in the surgical treatment of splenic flexure cancer.Methods:We retrospectively collected the 23 patients diagnosed with splenic flexure cancer who underwent the totally laparoscopic left hemicolectomy with overlapping delta-shaped anastomosis through the tunnel of terminal ileal mesentery in National Cancer Center/National Clinical Research Center for Cancer /Cancer Hospital from January 2018 to January 2022. Baseline variables, surgical outcomes, pathological characteristics, postoperative recovery and complications were analyzed.Results:All patients have successfully undergone the totally laparoscopic left hemicolectomy with overlapping delta-shaped anastomosis through the tunnel of terminal ileal mesentery. The median operation time was 165 min. The median estimated blood loss was 40 mL and the median incisional length was 5.0 cm. With regard to pathological characteristics, the median length of tumor was 4.3 cm. The median proximal and distal resection margin was 13.2 cm and 12.1 cm, respectively. The median time to first ground activities, first oral intake, first flatus passage, first defecation, and postoperative hospital stay were 17.5 h, 12 h, 33.5 h, 55.5 h, 5 d, respectively. One patient suffered from the abdominal infection, which was controlled after antibiotic therapy. Other patients were not suffered from incisional infection, anastomotic leakage, abdominal bleeding or intestinal obstruction during the 30-day follow-up period.Conclusion:Totally laparoscopic left hemicolectomy with overlapping delta-shaped anastomosis through the tunnel of terminal ileal mesentery could be applied in the surgical treatment of splenic flexure cancer with satisfactory short-term outcomes. But the long-term outcomes need to be explored.

随着微创理念的发展与外科器械的革新,完全腹腔镜手术无须过多分离肠管与系膜、取标本切口较小且位置隐蔽,在右半结肠、左半结肠与横结肠切除术中均展示出了较腹腔镜辅助手术有减少术后疼痛、促进术后恢复、降低术后并发症等优势.尽管需要更多的循证医学证据支持,但完全腹腔镜手术已成为了结肠癌手术治疗的方向.

目的 探讨利用套袖式吻合技术的低位直肠癌新辅助放化疗后经自然腔道取标本手术(NOSES)的安全性、可行性及近期疗效.方法 回顾性分析中国医学科学院北京协和医学院肿瘤医院2018年10月至2021年10月20例利用套袖式吻合技术完成NOSES手术的低位直肠癌新辅助放化疗后患者的临床资料,统计并分析患者的临床特征、手术情况、术后恢复、病理特征、围手术期并发症以及术后复发转移等资料,并分别于术后1个月、3个月及6个月采用低位前切除综合征(LARS)评分量表评估肛门功能.结果 20例低位直肠癌新辅助放化疗后患者均成功完成利用套袖式吻合技术的NOSES手术,术前肿瘤距肛缘中位距离为4.0cm,术中未行预防性造口,中位手术时间为171.5 min,中位吻合时间为17.0 min,中位术中出血量为35.0 mL.患者术后中位下地时间、进食时间、排气时间和住院时间分别为18.5 h、12.0 h、30.0 h和7.0 d,中位住院费用为47 678.0元.术后病理显示中位肿瘤长径为3.3 cm,中位近端切缘长度为10.3 cm,中位远端切缘长度为1.0 cm,中位淋巴结检出数目为14.5枚.随访过程中,结肠残端回缩入盆腔的中位时间为11.5 d,其中1例(5.0％)患者于术后第五天出现吻合口漏,另外有3例(15.0％)患者出现肛周粪水性皮炎伴肛周疼痛,均予对症止处理后好转.1例(5.0％)患者术后1年出现肝转移,其余患者无肿瘤局部复发或转移.12例(60％)患者术后1个月LARS评分较高,但术后3个月15例(75％)患者肛门功能较为满意.结论 利用套袖式吻合技术的低位直肠癌新辅助放化疗后NOSES手术安全可行,避免了预防性造口,经对症指导治疗肛门功能恢复满意,具有较好的近期疗效,其远期疗效待进一步随访观察.

Objective: To explore the clinical safety and feasibility of overlapped delta-shaped anastomosis (ODA) in totally laparoscopic right hemicolectomy (TLRHC). Methods: From May 2017 to October 2019, of the 219 patients who underwent TLRHC at the Cancer Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 104 cases underwent ODA (ODA group) and 115 cases underwent conventional extracorporeal anastomosis (control group) were compared the surgical outcomes, postoperative recovery, pathological outcomes and perioperative complications. Results: The length of the skin incision in the ODA group was significantly shorter than that in the control group [(5.6±0.9) cm vs. (7.1±1.7) cm, P<0.05], and the time to first flatus and first defecation after surgery in the ODA group was significantly earlier than that in the control group [(1.7±0.7) days vs. (2.0±0.7) days; (3.2±0.6) days vs. (3.3±0.7) days, P<0.05]. While the anastomosis time, operation time, intraoperative blood loss, the time of first ground activities, the number of bowel movements within 12 days after surgery, postoperative hospital stay, tumor size, the distal and proximal margins, the number of lymph node harvested and postoperative TNM stage in the ODA group did not differ from that of the control group (P>0.05). The postoperative complication rates of patients in the ODA group and the control group were 3.8% (4/104) and 4.3% (5/115), respectively, and the difference was not significant (P>0.05). Conclusion: The application of ODA technology in TLRHC can significantly shorten thelength of skin incisionand the recovery time of bowel function, and can obtain satisfactory short-term efficacy.

目的:探讨保留回盲部的完全腹腔镜右侧横结肠癌根治术的可行性、安全性及近期疗效.方法:回顾性分析中国医学科学院北京协和医学院肿瘤医院2018年01月至2020年12月行保留回盲部的完全腹腔镜右侧横结肠癌根治术患者27例的临床资料,统计并分析患者的临床病理特征、手术情况、术后恢复及围手术期并发症等资料.结果:27例患者均成功完成保留回盲部的完全腹腔镜右侧横结肠癌根治术,中位手术时间为120.0 min,中位术中出血量为20.0 mL.标本中位近端切缘长度为12.0 cm,中位远端切缘长度为11.0 cm,中位淋巴结检出数目为27.0枚.患者中位术后下地时间、进食时间、排气时间和住院时间分别为18.0 h、13.0 h、32.0 h和6.0 d,中位住院费用为71618.5元.随访过程中,仅1例患者术后出现切口感染,1例患者术后出现淋巴漏,保守治疗后均痊愈.患者术后1月、3月、6月及1年腹泻发生率分别为22.2％、7.4％、3.7％及3.7％.所有患者均未出现吻合口狭窄、吻合口漏、吻合口出血、肠梗阻等严重并发症.随访期间无患者出现肿瘤复发或者转移.结论:保留回盲部的完全腹腔镜右侧横结肠癌根治术切实可行,近期疗效较为满意,可能有助于降低结肠癌术后腹泻的发生率.

Background The diagnosis and surgical strategy of lateral lymph node metastases of rectal neuroendocrine tumors are still controversial. At present, the major diagnostic means rely on imaging examinations, but will be affected by the size of lymph nodes leading to false negativity. We provide a new technique to determine lateral lymph node metastases during surgery. Clinical case A 68-year-old man developed abdominal pain, bloating and fever for a month. Colonoscopy revealed the mass is 2.4 cm x 2.0 cm in size, with a wide stratum, poor mobility, and a rough but intact surface mucosa. Therefore, rectal neuroendocrine tumors (R-NET) were diagnosed. Multiple imaging methods, such as CT, octreotide imaging and endoscopic ultrasonography, have not found lateral lymph node metastases from rectal neuroendocrine tumors. But indocyanine green (ICG)-enhanced near-infrared fluorescence-guided imaging during surgery found left lateral lymph nodes metastases, which was proved by postoperative pathological examination. Conclusions We believe that applying ICG-enhanced near-infrared fluorescence-guided imaging in laparoscope can improve the detection of positive LLNs in those R-NET patients who did not reveal LNM on imaging examinations.

Objective: To investigate the safety, feasibility and short-term efficacy of total laparoscopic loop ileostomy reversal in patients after resection of rectal cancer. Methods: The clinical data of 20 patients who underwent total laparoscopic loop ileoscopic loop ileostomy after radical resection of rectal cancer at Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, or Beijing Chaoyang District Sanhuan Cancer Hospital from October 2019 to June 2020 were collected and retrospectively analyzed. Results: All patients had successfully underwent total laparoscopic ileostomy reversal without conversion to open surgery or discontinued operation. No perioperative related death cases were found. In the whole group, the median operation time was 97 (60-145) minutes and the median intraoperative blood loss was 20 (10-100) milliliters. The median Visual Analogue Scale (VAS) score was 1.9 (1-5) one day after the operation. Nobody needed to use additional analgesic drugs. The median time to grand activities was 25 (16-42) hours, the median time to flatus was 44 (19-51) hours, and the median hospitalization after operation was 6.9 (5-9) days. No patients underwent operation related complications such as operative incision infection, abdominal and pelvic infection, intestinal obstruction, anastomotic leakage, bleeding and so on. Conclusions: Total laparoscopic loop ileostomy reversal appears to be safe, feasible and with promising efficacy for selected patients.

Objective:To compare the short-term outcome of total laparoscopic and open loop ileostomy reversal.Methods:A retrospective review was performed for 60 consecutive patients who underwent loop ileostomy reversal between January 2018 to August 2020, at Department of Colorectal Surgery, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College. Twenty-seven patients were treated with total laparoscopic loop ileostomy while 33 patients were open cases. The baseline characteristics, operative outcomes, postoperative recovery and postoperative complications of these patients were identified and retrospectively analyzed.Results:All patients had been successfully accomplished loop ileostomy reversal without discontinued operation. No perioperative related death cases were found in the whole group. There was no significant difference in the clinical characteristics between the two groups. The length of incision in the total laparoscopic surgery group was significantly shorter than that in the traditional open surgery group [(5.7±1.4) cm vs. (7.8±1.1) cm, t=-6.622], and the difference was statistically significant (P＜0.001). There were significant differences between the two groups in the first ground activities [1 (1~1) d vs. 1(1~2) d], first flatus passage [2(1~3) d vs. 2(2~3) d], postoperative hospitalization days [6(5~7) d vs. 7(6~9) d], the postoperative complications [3.7% (1/27) vs. 24.2% (8/33)]. The total operative time of laparoscopic surgery group was longer than that of the traditional open surgery group [(98.0±24.5) min vs. (89.4±17.5) min], but the difference was not statistically significant. (P＞0.05)Conclusion:This retrospective study demonstrated that total laparoscopic loop ileostomy reversal might be a safe and feasible procedure, with a lower postoperative complications and a shorter postoperative hospitalization time.

Objective:To investigate the expression of glutathione peroxidases 4 (GPX4) in colon adenocarcinoma and its relationship with clinicopathological features and prognosis of patients.Methods:The data set of colon adenocarcinoma was obtained from The Cancer Genome Atlas (TCGA) database to analyze the expression of GPX4 in colon adenocarcinoma tissues and its predictive value for overall survival (OS). A total of 93 colon adenocarcinoma tissues and 87 adjacent mucosa tissues after operation from November 2009 to May 2010 provided by the National Human Genetic Resources Sharing Service Platform were selected. The expression of GPX4 protein was detected by using tissue chip immunohistochemistry. The relations between the expression of GPX4 protein and the clinicopathological features and OS of colon adenocarcinoma patients were analyzed. Cox proportional hazards regression model was used to analyze the factors affecting the prognosis. The nomogram for predicting OS rate was established and drawn.Results:The analysis of data from TCGA database showed that in 380 cases of colon adenocarcinoma, the expression of GPX4 in colon adenocarcinoma tissues were higher than that in the normal colonic mucosa tissues [the value of fragments per kilobase of exon per million fragments mapped (FPKM): 85.654 (20.351-356.237) vs. 56.230 (48.783-63.931)], and the difference was statistically significant ( Z = -6.150, P<0.05). The OS in GPX4 high-expression group (FPKM ≥83.614) were poorer than that in GPX4 low-expression group (FPKM < 83.614) (median OS time: 84.40 months vs. 94.03 months, 5-year OS rate: 58.6% vs. 72.7%), and the difference was statistically significant ( P<0.05). Tissue chip immunohistochemical staining results show that the high-expression rate of GPX4 protein in colon adenocarcinoma tissues was higher than that in adjacent normal tissues [38.0% (35/92) vs. 7.3% (6/82)], and the difference was statistically significant ( χ2 = 22.727, P<0.01); the high-expression rate of GPX4 protein in left colon adenocarcinoma tissues was higher than that in right colon adenocarcinoma tissues [47.2% (25/53) vs. 25.6% (10/39), and the difference was statistically significant ( χ2 = 4.42, P = 0.036); the 5-year OS rate of patients in GPX4 high-expression group was lower than that in GPX4 low-expression group (25.7% vs. 57.9%), and the difference was statistically significant ( χ2 = 9.051, P<0.05). Multivariate Cox proportional hazards regression model analysis showed that lymph node metastasis (stage N 1-N 3) ( HR = 2.241, 95% CI 1.242-4.046, P = 0.007) and high expression of GPX4 ( HR = 2.783, 95% CI 1.598-4.848, P<0.01) were independent factors affecting the poor prognosis of colon adenocarcinoma patients. The above factors were used to establish a nomogram for predicting the prognosis of patients with colon adenocarcinoma, the C index was 0.739, indicating that the nomogram had good predictive performance. Conclusion:The expression of GPX4 is up-regulated in colon adenocarcinoma tissues, and its high expression is related to the malignant biological behavior of the tumor and poor prognosis.

Objective: At present, though the laparoscopic delta-shaped anastomosis and overlapping delta-shaped anastomosis have been gradually applied to complete laparoscopic radical resection of left hemicolon cancer, the comparative evaluation of their efficacy has not been mentioned in the published literatures. This study aims to explore the safety, feasibility and short-term efficacy of overlapping delta-shaped anastomosis (ODA) in totally laparoscopic left hemicolectomy. Methods: A retrospective cohort study was performed. The clinical and pathological data of patients who underwent totally laparoscopic left hemicolectomy at Department of Colorectal Surgery, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College from May 2017 to October 2020 were retrospectively analyzed. The case inclusion criteria were as follows: (1) age of 18-75 years; (2) body mass index (BMI) of 18.5-30 kg/m(2); (3) descending colonic and proximal sigmoid colonic adenocarcinoma was confirmed by preoperative colonoscopy and pathology. The exclusion criteria: (1) multiple primary colorectal cancers; (2) uncontrolled or poorly controlled diabetes mellitus, immune system diseases, or hematological diseases; (3) severe intestinal obstruction; (4) left transverse colonic or splenic flexure colonic adenocarcinoma; (5) distant metastasis of liver, lung and other viscera determined by enhanced computed tomography in the chest, abdomen and pelvis. According to the above criteria, a total of 115 patients with left hemicolon cancer were enrolled. All the patients underwent totally laparoscopic left hemicolectomy. Patients who underwent laparoscopic traditional delta-shaped anastomosis were selected as the control group. Patients who underwent laparoscopic ODA were selected as the ODA group. Effects of these two laparoscopic reconstruction methods on postoperative recovery and perioperative complications were analyzed and compared. Results: A total of 60 patients were enrolled in the ODA group, including 32 males and 28 females, with mean age of (57.3±10.4) years and body mass index (BMI) of (25.0±3.1) kg/m(2). While mean 55 patients were enrolled in the control group, including 31 males and 24 females, with mean age of (56.7±9.9) years and BMI of (24.4±2.9) kg/m(2). There was no statistically significant differences between the two groups in gender, age, BMI, American Society of Anesthesiologist (ASA) classification, TNM staging, preoperative abdominal surgery history, neoadjuvant chemotherapy and nutritional status (levels of hemoglobin, lymphocyte count, prealbumin, and albumin) (all P>0.05). All the patients in both groups received R0 resection without conversion to open laparotomy or conversion to extra-abdominal anastomosis. The digestive tract reconstruction time of the ODA group was significantly shorter than that of the control group [(15.1±1.7) minutes vs. (15.9±2.4) minutes, t=-2.053, P=0.042]. There were no statistically significant differences in the total operation time, intraoperative blood loss, length of skin incision, tumor size, proximal and distal margins, harvested lymph nodes, postoperative first ambulatory time, and postoperative hospital stay (all P>0.05). However, the time to the first flatus and the first defecation in the ODA group was significantly shorter as compared to control group [(1.5±0.5) days vs. (1.7±0.5) days, t=-2.028, P=0.045; (3.1±0.6) days vs. (3.4±0.7) days, t=-2.095, P=0.039], indicating faster intestinal function recovery in patients with ODA. The morbidity of postoperative complication was 6.7% (4/60) in the ODA group and 7.3% (4/55) in the control group and no significant difference was found (χ(2)=0.016, P=0.898). Two cases of incision infection, 1 case of lung infection, and 1 case of intra-abdominal infection occurred in the ODA group, while 3 cases of lung infection and 1 case of intra-abdominal infection occurred in the control group. All these complications were resolved after conservative treatment, and no secondary operation was performed due to complications. Conclusion: Compared with the traditional delta-shaped anastomosis, ODA is associated with a faster recovery of postoperative intestinal function without increasing the morbidity of postoperative complications, and has the satisfactory short-term efficacy.

Objective: To examine the safety and feasibility of using fusion indocyanine green fluorescence imaging (FIGFI) technique for intraoperative evaluation of colorectal perfusion in the totally laparoscopic left colectomy. Methods: A retrospective cohort study was conducted to collect the clinical data of 58 patients with left colon cancer who underwent totally laparoscopic surgery at the Colorectal Surgery Department, Cancer Hospital, Chinese Academy of Medical Sciences from October 2016 to December 2019. There were 39 males and 19 females, aging (57.0±10.1)years(range:28 to 75 years). According to whether the FIGFI was used during the operation, they were divided into 36 cases in the study group and 22 cases in the control group. The clinical pathological characteristics, operative and postoperative recovery of the two groups were compared by t test, χ2 test, and Fisher exact test. Results: All the 58 patients underwent R0 resection with totally laparoscopic surgery. In the study group, due to poor bowel blood flow after cutting the mesentery (Sherwinter score = 1), 1 patient had to be expanded the resection range until the blood flow was rich(Sherwinter score≥3), and 1 patient in the control group had the complication of postoperative anastomotic leakage of grade A. Compared with the control group, the operation time in the study group was shorter ((156.3±43.5) minutes vs. (180.4±41.3) minutes, t=-2.083, P=0.042). However, there were no significant differences in the amount of blood loss, postoperative hospital stay, postoperative time of anal exhaust, length of bowel resection, number of lymph nodes dissected, and in the incidence of postoperative complications between the two groups. Median follow-up period was 23 months (range: 18 to 37 months). There were no long-term postoperative complications such as ischemic enteritis and anastomotic stenosis in both groups. Conclusions: The FIGFI is safe and feasible to assess the blood supply of intestinal segment and anastomosis during totally laparoscopic left hemicolectomy, and is easy to operate. It is expected to reduce the incidence of anastomotic leakage.

结直肠癌的发病率及死亡率在国内逐年上升,肝转移是患者死亡的主要原因之一.随着个体化治疗及多学科综合治疗协作组(multiple disciplinary team,MDT)诊治理念的提出,以及外科技术、新辅助化疗的迅速发展,患者的生存时间得到明显延长.目前,根治性手术治疗仍是治愈结直肠癌肝转移的主要方法,局部毁损治疗作为手术治疗的有效补充也已广泛应用于临床.新辅助化疗的应用可以降低肿瘤分期,提高手术切除率.但对于结直肠癌肝转移患者的手术方式、手术时机及新辅助化疗中是否联合靶向药物等仍存在争议.本文就结直肠癌肝转移手术和新辅助化疗进展展开综述.

With recent advances in laparoscopic-surgery techniques and neoadjuvant therapy options, there have been improvements in sphincter-preservation outcomes in patients with low rectal cancer [1–3]. However, several issues remain controversial, such as the incidence of anastomotic leakage, the local recurrence rate, and anal-function outcome [4–5]. Moreover, prophylactic stoma at the end of sphincter-preserving surgery is necessary to prevent anastomotic leakage, especially in patients undergoing neoadjuvant chemoradiotherapy [7]. To avoid prophylactic colostomy and decrease excessive expense, we developed a new method of overlapped end-to-end anastomosis for treating low rectal cancer—a technique referred to as ‘oversleeve anastomosis.’

Reversal of loop ileostomy after colorectal surgery in obese patients can be challenging and total laparoscopic (TLAP) approach may be beneficial. This study aims to compare short-term outcomes of TLAP and open approaches in obese patients undergoing loop ileostomy reversal after laparoscopic-assisted colorectal surgery. A retrospective review was performed for consecutive patients who underwent laparoscopic-assisted colorectal surgery previously and underwent loop ileostomy reversal between January 2017 and April 2020. TLAP and open cases performed in obese patients were identified and compared for the following outcomes: baseline characteristics, operative outcomes, postoperative recovery, and postoperative complications. TLAP or open-loop ileostomy reversal was performed on 30 and 34 patients, respectively. TLAP approach was associated with a similar operation time and blood loss compared with an open approach (P > 0.05). The median length of incision for stoma removal was significantly shorter in the TLAP group than in the open group (6.5 cm vs. 8.5 cm; P < 0.05), and a lower incidence of incisional infection was also noted in the TLAP group (6.7% vs. 26.5%; P < 0.05). The groups were comparable as regards the time to ground activities and length of hospitalization (P > 0.05), but the time to first flatus was decreased (2.0 vs. 3.0 days; P < 0.05). This retrospective study demonstrated that TLAP loop ileostomy reversal may have a satisfactory short-term outcome for obese patients after laparoscopic-assisted colorectal surgery, with a shorter incisional length and a lower incidence of incisional infection as well as an earlier time to first flatus.