The current epidemic of Corona Virus Disease 2019 (COVID-19) poses a serious threat to people's health and lives Following the national policies and deployment, medical community in China invests large amounts of medical resources to help Hubei However, some hospitals nationwide have suspended outpatient and inpatient services The authors analyze the underlying causes of suspension of medical services and its harm to patients, and summarize the optimization of disease diagnosis and treatment during the COVID-19 outbreak In further, they propose reasonable suggestions on safe medical management in general hospitals outside the epidemic area, in order to attract the attention of medical institutions and medical colleagues Copyright © 2020 by the Chinese Medical Association

Objective: To investigate the clinical value of outpatient screening in department of general surgery during the Corona Virus Disease 2019 (COVID-19) outbreak Methods: The retrospective and descriptive study was conducted The clinical data of 57 patients who visited surgery clinic and emergency department of Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology between February 1st and 26th in 2020 were collected There were 30 males and 27 females, aged (53±16)years, with a range from 17 to 87 years All the 57 patients were measured score of outpatient screening in department of general surgery The score ≥3 indicated high risk and the score 0 05) The 26 confirmed or suspected cases of COVID-19 had an age of (57±16)years, and 31 non-infection cases had an age of (50±16) years, with no significant difference between the two groups (t=-1 646, P>0 05) (2) Score of outpatient screening for COVID-19 of patients: the score of outpatient screening for COVID-19 of the 26 confirmed or suspected cases was 3 0(4 0), versus 1 0(1 0) of the 31 non-infection cases, showing a significant difference between the two groups (Z=-3 695, P<0 05) There were 17 and 9 of the 26 confirmed or suspected cases with high risks and low risks, respectively, versus 3 and 28 of the 31 non-infection cases, with a significant difference between the two groups (χ2=19 266, P<0 05) Conclusion: During the COVID-19 outbreak, outpatient screening in department of general surgery can effectively screen out high-risk patients Copyright © 2020 by the Chinese Medical Association

The Corona Virus Disease 2019 (COVID-19) since December, 2019 has a wide range of infection due to the strong infectious characteristics Both medical staff and patients are at increased risk of infection It is an urgent clinical problem for specialist doctors to work with diagnosis and treatment of cancer patients during the epidemic situation Based on the colorectal cancer diagnosis and treatment guidelines (2019 CSCO guideline), combined with their own experience, the authors propose the overall management strategies for colorectal cancer patients This strategies cover the key diagnosis and treatment of colorectal cancer, and provide targeted clinical practice These work will be helpful for colorectal cancer specialists to carry out the diagnosis and treatment of colorectal cancer effectively under the epidemic of COVID-19 Copyright © 2020 by the Chinese Medical Association

The Corona Virus Disease 2019 (COVID-19) that occurred December of 2019 has a wide range of impacts, and its epidemic situation is grim China has a large population of liver cancer, accounting for 50% of new cases of liver cancer worldwide How to ensure the diagnosis, treatment and rehabilitation of liver cancer patients while preventing and controlling the epidemic situation is an issue that urgently need specialists pay attention to The authors propose an overall management model for patients with liver cancer, combined with their own experience, in order to guide specialists to safely and effectively carry out clinical diagnosis and treatment of liver cancer during the prevention and control of epidemics, and to help liver cancer patients receive treatment Copyright © 2020 by the Chinese Medical Association

Splenic hilar lymph node (LN) is the difficulty and focus of perigastric LN dissection during radical gastrectomy for advanced proximal gastric cancer (APGC). Although the new edition of Japanese Gastric Cancer Treatment Guidelines excluded the splenic hilar LN from the D2 lymphadenectomy in patients with APGC, there are still few high-level evidences. Meanwhile, the guideline recommends that splenectomy is still necessary for patients with APGC involving the greater curvature. With the support of increasing evidences, the spleen-preserving splenic hilar LN dissection has been recognized by more and more scholars. Additionally, the technique of laparoscopy provides a new method for splenic hilar LN dissection. Our center proposed a new technique named Huang′s three-step maneuver for laparoscopic spleen-preserving splenic hilar lymphadenectomy, which not only reduces the difficulty of operation, but also makes the technique easier to popularize and with a significance of minimally invasive effect. During the clinical practice, the dissection of LNs behind the splenic portal vessels is also one of the controversies. Therefore, the difficult technique of splenic hilar LN dissection not only requires us to make a technical exploration, but also requires us to explore precise indications, in order to avoid unnecessary operation in patients who do not require dissection of the No.10 LNs and to avoid missing the opportunity for radical surgery in high-risk patients because of the difficult techniques. Key words: Gastric neoplasms; Surgical procedure, operative; Splenic hilar lymph node; Lymphadenectomy; Laparoscopy

Gallbladder cancer is a biliary malignant disease with difficulty in early diagnosis, high malignancy and poor prognosis. Radical resection is the most effective approach to improve the prognosis of patients. With the update of minimally invasive devices and the accumulation of surgeon experience, laparoscopic surgery has achieved satisfactory results in the treatment of malignant tumors of the digestive tract, but there is still controversy in its application in gallbladder cancer treatment, mainly due to lack of reliable evidence for improved survival outcomes. The current studies indicated that laparoscopic surgery could benefit some patients with early gallbladder cancer in perioperative period and survival. For advanced gallbladder cancer, although there is still no consensus on the resection extent, laparoscopic staging can prevent patients from unnecessary expanded resection. The minimally invasive process of radical cholecystectomy needs to be promoted through a high-quality diagnosis and treatment process. Only in this way can there be practical clinical evidence to guide the best clinical practice. Key words: Bile duct neoplasms; Treatment; Ra-dical cholecystectomy; Laparoscopy

Objective To investigate the clinical value of lymph node dissection (LND) in the radical resection of intrahepatic cholangiocarcinoma (ICC). Methods The propensity score matching and retrospective cohort study was conducted. The clinicopathological data of 448 patients with ICC who were admitted to 12 medical centers from December 2011 to December 2017 were collected, including 279 in the Eastern Hepatobiliary Surgery Hospital of Navy Medical University, 32 in the Mengchao Hepatobiliary Hospital of Fujian Medical University, 21 in the First Hospital Affiliated to Army Medical University, 20 in the Cancer Hospital Chinese Academy of Medical Science and Peking Union Medical College, 19 in the West China Hospital of Sichuan University, 18 in the Second Hospital Affiliated to Zhejiang University School of Medicine, 18 in the Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine, 16 in the Beijing Friendship Hospital Affiliated to Capital Medical University, 10 in the Xuanwu Hospital Affiliated to Capital Medical University, 7 in the Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, 5 in the Beijing Tiantan Hospital Affiliated to Capital Medical University, and 3 in the Affiliated Hospital of North Sichuan Medical College. There were 281 males and 167 females, aged from 22 to 80 years, with a median age of 57 years. Of the 448 patients, 143 with routinely intraoperative LND were divided into LND group and 305 without routinely intraoperative LND were divided into control group, respectively. Observation indicators: (1) the propensity score matching conditions and comparison of general data between the two groups after matching; (2) intraoperative and postoperative situations; (3) follow-up; (4) survival analysis. Patients were followed up by outpatient examination, telephone interview and email to detect survival of patients and tumor recurrence up to October 31, 2018 or death. Follow-up was conducted once every 3 months within postoperative 1-2 years, once every 6 months within postoperative 2-5 years, and once a year after 5 years. The propensity score matching was realized using the nearest neighbor method with 1∶1 ratio. Measurement data with normal distribution were represented as Mean±SD, and comparison between groups was analyzed using the t test. Measurement data with skewed distribution were represented as M (range), and comparison between groups was analyzed using the Mann-Whitney U test. Count data were described as absolute numbers, and comparison between groups was analyzed using the chi-square test or Fisher exact probability. Kaplan-Meier method was used to calculate survival rates and draw survival curve, and Log-rank test was used to perform survival analysis. Univariate analysis and multivaraiate analysis were conducted using the Log-rank test and COX regression model, respectively. Results (1) The propensity score matching conditions and comparison of general data between the two groups after matching: 286 of 448 patients had successful matching, including 143 in each group. The number of males and females, cases with hepatitis, cases with grade A and B of Child-Pugh classification, cases with distance from margin to tumor 0.05). (2) Intraoperative and postoperative situations: the operation time, volume of intraoperative blood loss, cases with intraoperative blood transfusion, cases with postoperative complications, and duration of postoperative hospital stay were 265 minutes (range, 160-371 minutes), 300 mL (range, 200-500 mL), 37, 46, 12 days (range, 9-17 days) for the LND group, and 59 minutes (range, 46-250 minutes), 200 mL (range, 100-400 mL), 24, 25, 9 days (range, 7-11 days) for the control group, respectively. There was no significant difference in the volume of intraoperative blood loss or cases with intraoperative blood transfusion between the two groups (Z=1.700, χ2=3.520, P>0.05). There were significant differences in the operation time, cases with postoperative complications, and duration of postoperative hospital stay (Z=6.520, χ2=8.260, Z=4.270, P 0.05). (4) Survival analysis: results of univariate analysis showed that distance from margin to tumor, tumor diameter, the number of tumors, microvascular tumor thrombus, and lymph node metastasis by pathological examination were related factors for prognosis of patients undergoing radical resection of ICC (χ2=10.662, 9.477, 16.944, 6.520, 11.633, P 5 cm, multiple tumors, microvascular tumor thrombus, positive lymph node metastasis by pathological examination were independent risk factors for prognosis of patients undergoing radical resection of ICC (hazard ratio=0.600, 1.571, 1.601, 1.750, 1.723, 95% confidence interval: 0.430-0.837, 1.106-2.232, 1.115-2.299, 1.083-2.829, 1.207-2.460, P<0.05). Conclusion Lymph node metastasis is an independent risk factor affecting the prognosis of ICC patients, and it is necessary to perform LND in radical resection for patients with ICC and lymph node metastasis. Key words: Bile duct neoplasms; Intrahepatic cholangiocarcinoma; Radical resection; Lymph node dissection; Prognosis; Multicenter; Retrospective

Objective To investigate the application value of parallel and cross-to-overlap anastomosis method (PCOA) in three-dimensional (3D) laparoscopic radical resection of right hemicolon cancer. Methods The retrospective cross-sectional study was conducted. The clinicopathological data of 138 patients who underwent 3D laparoscopic radical resection of right hemicolon cancer at Henan Provincial People′s Hospital between July 2016 and July 2019 were collected. There were 83 males and 55 females, aged from 30 to 76 years, with a median age of 64 years. All the 138 patients with right hemicolon tumors were diagnosed as malignant tumors by enteroscopy and pathological examination before operation. The lymph node dissection and radical resection of right hemicolon cancer were performed according to the 9th edition of Japanese General Rules for Cancer of Colon, Rectum and Anus of the Japanese Colorectal Cancer Association. Observation indicators: (1) surgical situations; (2) postoperative conditions; (3) follow-up. Follow-up was conducted by outpatient examination or telephone interview to detect survival of patients and tumor recurrence and metastasis up to September 2019. Measurement data with normal distribution were represented as Mean±SD. Measurement data with skewed distribution were represented as M (range). Count data were represented as percentages or absolute numbers. Results (1) Surgical situations: all the 138 patients underwent 3D laparoscopic radical resection of right hemicolon cancer using PCOA to reconstruct digestive tracts, without conversion to open surgery. The operation time, time for PCOA, and volume of intraoperative blood loss was (151.0±54.0)minutes, (20.1±2.0)minutes, and (60±21)mL. (2) Postoperative situations: the time to first flatus, time to semi-liquid food intake, length of auxiliary incision, and incidence rate of postoperative complications were (2.5±0.4)days, (4.0±1.3)days, (3.0±0.2)cm, and 3.62%(5/138), respectively. Of the 5 patients with postoperative complications, 1 patient with intestinal obstruction was cured after conservative treatment including gastrointestinal decompression and nutritional support, 1 patient with anastomotic leakage was cured after conservative treatment including gastrointestinal decompression, local patency drainage, infection control and nutritional support, 1 patient with ascites and abdominal infection was cured after computed tomography-guided percutaneous catheter drainage, 1 patient with incisional infection was cured by controlling infection, strengthening dressing changes, local irrigation and drainage, 1 patient with pulmonary infection was cured after anti-infective treatment.The number of lymph nodes dissected after surgery, duration of postoperative hospital stay, and hospital expenses were 19±8, (7.2±4.1)days, and (4.8±1.4)×104 yuan. All the 138 patients were confirmed as colonic adenocarcinoma by postoperative pathological examination, including 27 cases of poorly differentiated adenocarcinoma, 92 cases of moderately differentiated adenocarcinoma, 10 cases of highly differentiated adenocarcinoma, and 9 cases of mucinous adenocarcinoma. (3) Follow-up: 133 of 138 patients were followed up for 2-38 months, with a median follow-up time of 18 months. During the follow-up, 2 patients died, 1 of which was detected multiple liver metastases at postoperative 16 months and died at postoperative 21 months, and the other was detected multiple liver metastases at postoperative 20 months and died at postoperative 24 months. Eight patients had distant metastasis, including 5 cases of liver metastasis, 1 case of lung metastasis, and 2 cases of abdominal metastasis. The 10 patients with death and tumor metastasis were confirmed as stage Ⅲ by postoperative pathological examination, and the other 123 patients were generally in good condition. Conclusion PCOA is safe and effective for 3D laparoscopic radical resection of right hemicolon cancer. Key words: Colonic neoplasms; Digestive tract reconstruction; Parallel and cross-to-overlap anastomosis; Surgery for right hemicolon cancer; Three-dimensional; Laparoscopy

China has the largest group of patients with colorectal cancer in the world, however, there are few international guidelines for the diagnosis and treatment of colorectal cancer from China, or research of high-level evidence in China. In recent years, colorectal surgery has developed rapidly in China, and great progress has been made both in clinical practice and in clinical research. But there are still many imbalances and under-regulations. In 2018, Chinese Society of Colorectal Surgery led the establishment of Chinese Colorectal Cancer Surgery Database (CCCD). The retrospective and prospective data collection coming from CCCD showed that the standardization of colorectal cancer surgery and data management needed to be improved, and the awareness of clinical research needed to be further improved. Therefore, how to carry out good clinical research and obtain high-level evidence based upon CCCD will be the great challenge for colorectal surgery in China. Key words: Colorectal neoplasms; Standardization; Registry database; Data collection; Clinical research

In recent years, enhance recovery after (ERAS) has attracted many attentions in the surgical field. ERAS is a new model of perioperative management, in which more attention is paid to patients′ perception to the medical treatment. This new medical model is different from the past one which is completely led by medical practitioners, thus full of humanistic concerns and rationality. With the premise of medical safety guaranteed, a series of measures, especially evidence-based medical interventions, are implemented to optimize the perioperative management and promote the recovery of patients in ERAS. A certain level of economic and social benefit will be gained with this process. The development history of ERAS was systemically reviewed in current editorial to help the readers to get a better understanding of the origin and evolving process of ERAS. It tracked back to the 1960s when reductions and one guarantee and removal of two tubes and one prohibition were proposed as a revolutional perioperative management mode by the surgical community in our country. The goals pursued and measures implemented by our surgical predecessors back in those days were astonishingly similar to those in today′s ERAS practice. They actually enlightened the initiation of ERAS in China. While ERAS is widely implemented nowadays, this new medical model should be objectively evaluated. A patient-centered medical system should be built, and ERAS should be promoted from an academic perspective, through which the ultimate goal of surgery without danger and pain could be finally achieved. Key words: Treatment outcome; Enhanced recovery after surgery; Fast track surgery; Perioperative management