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Surgical specimen extraction via a prophylactic ileostomy procedure: A minimally invasive technique for laparoscopic rectal cancer surgery

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World Journal of Gastroenterology 2018年第1期24卷 104-111页

作者： Peng Wang Jian-Wei Liang Hai-Tao zhou Zheng Wang zhi-xiang zhou Department of Colorectal Surgery National Cancer Center/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical College

AIM To retrospectively evaluate the safety and feasibility of surgical specimen extraction via a prophylactic ileostomy procedure in patient with rectal cancer. METHODS We systematically reviewed 331 consecutive patients who underwent laparoscopic anterior resection for rectal cancer and prophylactic ileostomy in our institution from June 2010 to October 2016, including 155 patients who underwent specimen extraction via a prophylactic ileostomy procedure(experimental group), and 176 patients who underwent specimen extraction via a small lower abdominal incision(control group). Clinical data were collected from both groups andstatistically analyzed. RESULTS The two groups were matched in clinical characteristics and pathological outcomes. However, mean operative time was significantly shorter in the experimental group compared to the control group(161.3 ± 21.5 min vs 168.8 ± 20.5 min; P = 0.001). Mean estimated blood loss was significantly less in the experimental group(77.4 ± 30.7 mL vs 85.9 ± 35.5 mL; P = 0.020). The pain reported by patients during the first two days after surgery was significantly less in the experimental group than in the control group. No wound infections occurred in the experimental group, but 4.0% of the controls developed wound infections(P = 0.016). The estimated 5-year disease-free survival and overall survival rate were similar between the two *** Surgical specimen extraction via a prophylactic ileostomy procedure represents a secure and feasible approach to laparoscopic rectal cancer surgery, and embodies the principle of minimally invasive surgery.

关键词： Minimally invasive surgery Rectal cancer Anastomotic leakage Prophylactic ileostomy Safety

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Short-term outcomes of overlapped delta-shaped anastomosis, an innovative intracorporeal anastomosis technique, in totally laparoscopic colectomy for colon cancer

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World Journal of Gastroenterology 2017年第36期23卷 6726-6732页

作者： Hai-Tao zhou Peng Wang Jian-Wei Liang Hao Su zhi-xiang zhou Department of Colorectal Surgery National Cancer Center/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021

AIM To introduce an innovative intracorporeal anastomosis technique named overlapped delta-shaped anastomosis(ODA)for colon cancer cases undergoing totally laparoscopic colectomy(TLC)and to assess its feasibility and safety. METHODS From January 2016 to March 2017,a total of 20consecutive patients with colon cancer accepted TLC and the ODA technique at our medical *** demographics,operative outcomes,perioperative complications,and pathological results were collected and analyzed. RESULTS We successfully completed TLC and the ODA procedure in all 20 cases,including 6(30%)males and 14(70%)*** total,11(55%),2(10%),and 7(35%)cases accepted right hemicolectomy,transverse hemicolectomy,and left hemicolectomy,*** of the surgeries were converted to an open *** operative time was 178.5 min,and mean estimated blood loss was 58.5 m *** time to first flatus was 2.5 d,and mean postoperative hospitalization duration was 6.8 *** severe complications occurred,such as anastomotic leakage,snastomotic stenosis,anastomotic bleeding,and wound infection,except for one case who suffered from an abdominal infection and another case who suffered from gastric paralysis *** recurrence was not observed in any patient during the follow-up period. CONCLUSION The ODA technique for colon cancer cases undergoing TLC appears to be safe and feasible,although our current results need to be verified in further studies.

关键词： Overlapped delta-shaped anastomosis Safety Totally laparoscopic colectomy Intracorporeal anastomosis Colon cancer

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Mini-invasive surgery for colorectal cancer

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Chinese Journal of Cancer 2014年第6期33卷 277-284页

作者： Wei-Gen Zeng zhi-xiang zhou Department of Gastrointestinal Surgery Cancer Hospital Chinese Academy of Medical Sciences & Peking Union Medical College

Laparoscopic techniques have been extensively used for the surgical management of colorectal cancer during the last two decades. Accumulating data have demonstrated that laparoscopic colectomy is associated with better short-term outcomes and equivalent oncologic outcomes when compared with open surgery. However, some controversies regarding the oncologic quality of mini-invasive surgery for rectal cancer exist. Meanwhile, some progresses in colorectal surgery, such as robotic technology, single-incision laparoscopic surgery, natural orifice specimen extraction, and natural orifice transluminal endoscopic surgery, have been made in recent years. In this article, we review the published data and mainly focus on the current status and latest advances of mini-invasive surgery for colorectal cancer.

关键词：手术治疗大肠癌机器人技术腹腔镜微创手术直肠癌数据表切除术

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Directional motion of dust particles at different gear structuresin a plasma

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Chinese Physics B 2020年第2期29卷 362-365页

作者： Chao-Xing Dai Chao Song zhi-xiang zhou Wen-Tao Sun zhi-Qiang Guo Fu-Cheng Liu Ya-Feng He Hebei Key Laboratory of Optic-electronic Information Materials College of Physics Science and TechnologyHebei UniversityBaoding 071002China

Directional motion of dust particles in a dusty plasma ratcnet is observed *** dusty plasma ratcnet consists of two concentric gears with asymmetric *** is found that the sawtooth number affects the directional motion of dust particles along the saw *** the inerease of the sawtooth number,the particle velocity increases firstly and then decreases,and there is an optimum number of the sawtooth which could induce fast rotation of dust *** velocities of dust particles change as they are flowing along the saw *** also explore the force acting on the dust particle experimentally.

关键词： dusty plasma ratchet

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Intra-corporeal delta-shaped anastomosis in laparoscopic right hemicolectomy for right colon cancer:a safe and effective technique

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Gastroenterology Report 2019年第4期7卷 272-278,I0002页

作者： Hao Su Wei-Sen Jin Peng Wang Mandula Bao Xue-Wei Wang Qian Liu Xi-Shan Wang zhi-xiang zhou Hai-Tao zhou Department of Colorectal Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100021P.R.China Department of Anorectal Diseases General Hospital of Chinese Armed Police ForcesNo.69 Yongding RoadHaidian DistrictBeijing100039P.R.China

Background and objective:Intra-corporeal delta-shaped anastomosis(IDA)is an important development in laparoscopic digestive-tract *** applied it in laparoscopic right hemicolectomy for right colon cancer and compared the short-term outcomes between the patients treated with IDA and conventional extracorporeal anastomosis(EA).Methods:Between 1 January 2016 and 1 October 2017,36 and 50 patients who underwent IDA and EA,respectively,were *** on clinicopathological characteristics,surgical outcomes,post-operative recovery and complications were collected and compared between the two ***:Surgical outcomes and clinicopathological characteristics were similar between the two groups except the length of incision,which was significantly shorter in the IDA group than in the EA group(4.660.6 vs 5.660.7 cm,P<0.001).The time to ground activities,fluid diet intake and post-operative hospitalization did not differ between the groups;however,the time to first flatus was significantly shorter in the IDA group than in the EA group(2.860.5 vs 3.260.8 days,P=0.004).The post-operative visual analogue scale for pain was lower in the IDA group than in the EA group on post-operative Day 1(4.060.7 vs 4.561.0,P=0.002)and post-operative Day 3(2.760.6 vs 3.460.6,P<0.001).The surgical complication rates were 8.3 and 16.0%in the IDA and EA groups(P=0.470),*** complications such as anastomotic bleeding,stenosis and leakage occurred in any ***:IDA is safe and feasible and shows more satisfactory short-term outcomes than EA.

关键词： Colon cancer delta-shaped anastomosis intra-corporeal anastomosis digestive-tract reconstruction laparoscopic right hemicolectomy

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Application of indocyanine green-enhanced near-infrared fluorescence-guided imaging in laparoscopic lateral pelvic lymph node dissection for middle-low rectal cancer

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World Journal of Gastroenterology 2019年第31期25卷 4502-4511页

作者： Si-Cheng zhou Yan-Tao Tian Xue-Wei Wang Chuan-Duo Zhao Shuai Ma Jun Jiang Er-Ni Li Hai-Tao zhou Qian Liu Jian-Wei Liang zhi-xiang zhou Xi-Shan Wang Department of Colorectal Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Department of Pancreatic and Gastric Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Department of Radiology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China

BACKGROUND As one effective treatment for lateral pelvic lymph node(LPLN)metastasis(LPNM),laparoscopic LPLN dissection(LPND)is limited due to the complicated anatomy of the pelvic sidewall and various complications after *** regard to improving the accuracy and completeness of LPND as well as safety,we tried an innovative method using indocyanine green(ICG)visualized with a near-infrared(NIR)camera system to guide the detection of LPLNs in patients with middle-low rectal *** To investigate whether ICG-enhanced NIR fluorescence-guided imaging is a better technique for LPND in patients with rectal *** A total of 42 middle-low rectal cancer patients with clinical LPNM who underwent total mesorectal excision(TME)and LPND between October 2017 and March 2019 at our institution were assessed and divided into an ICG group and a non-ICG *** characteristics,operative outcomes,pathological outcomes,and postoperative complication information were compared and analysed between the two *** Compared to the non-ICG group,the ICG group had significantly lower intraoperative blood loss(55.8±37.5 mL vs 108.0±52.7 mL,P=0.003)and a significantly larger number of LPLNs harvested(11.5±5.9 vs 7.1±4.8,P=0.017).The LPLNs of two patients in the non-IVG group were residual during *** addition,no significant difference was found in terms of LPND,LPNM,operative time,conversion to laparotomy,preoperative complication,or hospital stay(P>0.05).CONCLUSION ICG-enhanced NIR fluorescence-guided imaging could be a feasible and convenient technique to guide LPND because it could bring specific advantages regarding the accuracy and completeness of surgery as well as safety.

关键词： Rectal cancer Lateral pelvic lymph node dissection Indocyanine green Lateral pelvic lymph node

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Oversleeve anastomosis in laparoscopic sphincter-preserving surgery for low rectal cancer:an overlapped end-to-end anastomosis technique without prophylactic stoma

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Gastroenterology Report 2021年第1期9卷 77-80,I0003页

作者： Hao Su Man-Dula Bao Shou Luo Zheng Xu Peng Wang Xue-Wei Wang Chuan-Duo Zhao Jian-Wei Liang Qian Liu Xi-Shan Wang zhi-xiang zhou Hai-Tao zhou Department of Colorectal Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingP.R.China

Introduction 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’.

关键词：保肛手术端端吻合低位直肠癌重叠式

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Transforming Activity of a Novel Mutant of HPV16 E6E7 Fusion Gene

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Virologica Sinica 2011年第3期26卷 206-213页

作者： Qiang Xie zhi-xiang zhou Ze-lin Li Yi Zeng （College of Life Science and Bioengineering Beijing University of Technology Beijing 100124 China）

An optimized recombinant HPV16 E6E7 fusion gene (HPV16 ofE6E7) was constructed according to codon usage for mammalian cell expression, and a mutant of HPV16 ofE6E7 fusion gene (HPV16 omfE6E7) was generated by site-directed mutagenesis at L57G, C113R for the E6 protein and C24G, E26G for the E7 protein for HPV16 ofE6E7 [patent pending (CN 101100672)]. The HPV16 omfE6E7 gene constructed in this work not only lost the transformation capability to NIH 3T3 cells and tumorigenicity in SCID mice, but also maintained very good stability and antigenicity. These results suggests that the HPV16 omfE6E7 gene should undergo further study for application as a safe antigen-specific therapeutic vaccine for HPV16-associated tumors.

关键词： Human papillomavirus (HPV) E6 E7 Gene optimization Gene mutation Transformation

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Effect of preoperative injection of carbon nanoparticle suspension on the outcomes of selected patients with mid-low rectal cancer

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Chinese Journal of Cancer 2016年第5期35卷 250-254页

作者： Xing-Mao Zhang Jian-Wei Liang Zheng Wang Jian-tao Kou zhi-xiang zhou Department of Hepatobiliary Surgery Beijing Chaoyang HospitalCapital Medical University Department of Gastrointestinal Surgery Cancer HospitalChinese Academy of Medical Sciences & Peking Union Medical College

Background:Carbon nanoparticles show significant lymphatic tropism and can be used to identify lymph nodes surrounding mid-low rectal *** this study,we analyzed the effect of trans anal injection of a carbon nanoparticle suspension on the outcomes of patients with mid-low rectal cancer who underwent laparoscopic ***:We collected the data of 87 patients with mid-low rectal cancer who underwent laparoscopic resection between November 2014 and March 2015 at Cancer Hospital,Chinese Academy of Medical Sciences & Peking Union Medical *** 35 patients in the experimental group,the carbon nanoparticle suspension was injected transanally into the submucosa of the rectum around the tumor 30 min before the operation;52 patients in the control group underwent the operation directly without the injection of carbon nanoparticle *** then compared the operation outcomes between the two ***:In the experimental group,the rate of incomplete mesorectal excision was lower than that in the control group,but no significant difference was found(2.9%vs.7.7%,P = 0.342).The distance between the tumor and the circumferential resection margin was 5.8 ± 1.4 mm in the experimental group and 4.8 ±1.1 mm in the control group(P = 0.001).The mean number of lymph nodes removed was 28.2 ± 9.4 in the experimental group and 22.7 ± 7.3in the control group(P = 0.003);the mean number of lymph nodes smaller than 5 mm in diameter was 10.1 ± 7.5and 4.5 ±3.7,respectively(P< 0.001).Three patients in the experimental group received lateral lymph node *** the three patients,we retrieved three nodes(one stained node) from the first patient,three nodes(two stained nodes) from the second patient,and two nodes(no stained nodes) from the third ***:Injecting a carbon nanoparticle suspension improved the outcomes of patients who underwent laparoscopic resection for mid-low rectal cancer;it also improved the accuracy of pathologic ***

关键词： Carbon nanoparticle suspension, Rectal cancer

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Clinicopathological characteristics and prognostic factors for the recurrence of abdominal desmoid tumors: a retrospective study of 113 patients from two Chinese hospitals

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Chinese Medical Journal 2021年第12期134卷 1505-1507页

作者： Si-Cheng zhou Wei Pei Zhen Sun zhi-xiang zhou Xi-Shan Wang Jian-Wei Liang Qiang Feng Department of Colorectal Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Department of General Surgery Beijing HospitalBeijing 100730China

To the Editor:Desmoid tumors(DTs)show local aggressiveness to surrounding structures and exhibit a propensity to recur,leading to a high local recurrence rate and significant functional impairments and morbidity.[1]It has been shown that DTs located in the abdominal wall and abdominal cavity are relatively minimally invasive and have a relatively low recurrence rate,[2]which indicated abdominal desmoid tumors(ADTs)may have different biological make-ups and *** study was aimed to delineate the clinicopathological features and determine the prognostic factors for recurrence-free survival(RFS)in ADTs after macroscopic complete surgical resection.

关键词： abdominal tumors patients

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