中华胃肠外科杂志最新文献

Robotic surgery, as an increasingly widespread application in the treatment of gastric and colorectal cancer, still faces obvious discrepancies in recommendations, indications, and evidence strength across existing guidelines. This study systematically analyzed 31 relevant guidelines and consensus statements (retrieved from Chinese and English databases from January 2010 to May 2025) from two dimensions: feasibility (effectiveness, safety, etc.) and training quality control.The results showed that colorectal cancer guidelines had a higher proportion (4 guidelines) of "clear recommendations" for robotic surgery, while gastric cancer guidelines predominantly presented "conditional recommendations" or no recommendations. In the training and quality control dimension, although structured suggestions received positive recommendations, more than half were based on low or very low-quality evidence. Evidence mapping indicated insufficient matching between "case-specific recommendations" and evidence grades in the feasibility dimension, while training processes emphasized the importance of standardized systems and team collaboration.The study highlights the existing heterogeneity in evidence-based guidelines for robotic gastrointestinal surgery, with colorectal cancer demonstrating a more mature evidence base and gastric cancer showing notable evidence gaps. It is recommended that future guideline development should strengthen the consistency between recommendation grades and evidence levels, promote high-quality research in upper gastrointestinal surgery, and improve surgeon training and certification systems to facilitate standardized clinical translation of robotic gastrointestinal surgery.

In recent years, the concept of membrane anatomy has gain continuous extension and breakthrough in multiple specialized fields such as gastrointestinal surgery. Compared with traditional surgery, radical resection of gastrointestinal tumors based on the concept of membrane anatomy has shown significant advantages in therapeutic effects. However, in practical application, this concept still faces many problems and challenges, among which how to accurately identify membrane structures and achieve effective membrane navigation during surgery has become a key concern. To address the above issues, our team developed and established the Deepguide membrane navigation system, aiming to overcome the difficulties in membrane identification and navigation, and solve the critical problem of insufficient membrane integrity rate after gastrointestinal tumor surgery. This paper systematically reviews the creation process and clinical application scenarios of the Deepguide membrane navigation system, and prospects its future application prospects and development directions, to provide a useful reference for the development of membrane anatomy surgery and the research and development of navigation technologies.

The liver is the main target organ for hematogenous metastases from colorectal cancer, and colorectal liver metastasis is one of the most difficult and challenging situations in the treatment. In order to improve the diagnosis and comprehensive treatment in China, the Guidelines have been edited and revised for seven times since 2008, including the overall evaluation, personalized treatment goals and comprehensive treatments, to prevent the occurrence of liver metastases, increase the local damage rate of liver metastases, prolong long-term survival, and improve quality of life. The revised Guideline version 2025 includes the diagnosis and follow-up, prevention, multidisciplinary team (MDT), surgery and local ablative treatment, neoadjuvant and adjuvant therapy, comprehensive treatment. The revised Guideline emphasizes precision treatment based on genetic molecular typing, especially recommending immune checkpoint inhibitors for dMMR/MSI-H patients, and enriched local treatment methods, such as liver transplantation, yttrium-90 microsphere selective internal radiotherapy, etc. The revised Guideline includes state-of-the-art experience and findings, detailed content, and strong operability.

Objective: To explore the application value of right-opening single flap valvuloplasty based on tubular stomach in gastrointestinal reconstruction after laparoscopic proximal gastrectomy. Method: Use a linear cutting stapler to make a parallel curve from the angle of the stomach to the junction of the gastric fundus to remove the lesser curvature of the stomach, and detach the gastric body about 5 cm away from the tumor to create a tubular stomach. Use a marker pen to draw a C-shaped seromuscular flap area with a width of 2.5 cm and a height of 3.5 cm 1.5 cm below the residual stomach closure nail, and create a free muscle flap in the gap between the plasma muscle layer and the submucosal layer. Make a transverse incision of 3 cm at the lower edge of the mucosal bed, and intermittently suture the entire lower edge of the gastric wall with 3 stitches. Under laparoscopy, use 4-0 barbed wire to suture the 1 cm wide muscular layer at the top of the tubular stomach and the posterior wall of the esophagus about 5 cm away from the esophageal stump with 3 stitches. Push the upper end of the tubular stomach into the mediastinum, and then tighten the barbed wire to ensure a tight fit between the stomach and the posterior wall of the esophagus. Use an ultrasonic scalpel to remove the esophageal stump, suture the entire posterior wall of the esophagus with the gastric mucosa, and use barbed wire to suture the anterior wall from left to right. The anastomotic site is completely covered with a free muscle flap, and the barbed line is used to continuously suture the muscle flap along the C-shaped line to the gastric pulp muscle layer at the edge of the mucosal bed, embedding the anastomotic site and completing the reconstruction of the digestive tract. Results: Clinical data of 23 patients (18 from the First Affiliated Hospital of Wenzhou Medical University and 5 from the Quzhou Hospital affiliated with Wenzhou Medical University) who underwent laparoscopic proximal gastrectomy, tubular gastroesophageal anastomosis, and pure manual right flap reconstruction surgery for esophagogastric junction adenocarcinoma and proximal gastric cancer from October 2023 to August 2024. There were 15 males and 8 females, with an age of (65.3±7.7) years, the BMI was (22.9±2.8) kg/m². All patients in the group successfully completed the surgery, with a surgery time of (218.5±38.1) minutes, including (73.5±19.2) minutes for anastomosis, intraoperative blood loss of (64.5±15.4) ml, postoperative passage of gas on (3.4±0.5) days, first consumption of liquid food after surgery of (3.9±1.1) days, and postoperative hospital stay of (9.1±0.8) days. One patient developed anastomotic stenosis (grade I) after surgery, presenting with mild swallowing obstruction, which returned to normal after dietary adjustment, and there were no cases of secondary surgery. The median follow-up time for the entire group was 4.0 (0.7-7.0) months, during which there were

Objective: To investigate the learning curves of gastroscopy and colonoscopy for surgeons. Methods: Clinical data of ordinary digestive endoscopy performed by gastrointestinal surgeons in Peking University People's Hospital from March, 2022 to March, 2024 were collected retrospectively. Learning curves were plotted according to the number of examinations and learning time, and the cumulative sum control chart method was used to determine the number of cases required to achieve proficiency in endoscopic examination. Results: Six gastrointestinal surgeons (sequentially) received training in gastroscopy and colonoscopy. All surgeons were male physicians with a doctoral degree and the professional title of attending physician. The average age was (33.0 ±1.9) years, and the average job tenure was (4.0±1.8) years. The median time required for proficiency in gastroscopy was 31 weeks, with a median number of cases of 624. Similarly, the median time required for proficiency in colonoscopy was also 31 weeks but with a median number of cases of 470. Conclusions: Surgeons need at least 31 weeks of independent operation to become proficient in endoscopic examination and more than 600 cases to be proficient in gastroscopy. Surgeons with gastroscopy experience also need 31 weeks of independent operation but at least 450 cases to become proficient in colonoscopy.

Objective: To report the 5-year survival outcomes and recurrence patterns of robotic total gastrectomy (RTG) for locally advanced proximal gastric cancer in order to provide more valuable long-term follow-up results for clinical practice. Methods: This was a prospective, single-arm, open-label clinical trial (FUGES-014; Clinical-Trials.gov, NCT03524287). Patients with locally advanced proximal gastric cancer who underwent RTG at Fujian Medical University Union Hospital from March 5, 2018, to February 10, 2020, were included in the analysis. To evaluate the long-term efficacy of RTG in the most objective manner possible, we performed a propensity score-matched (1∶2) comparative analysis with historical control patients who had undergone laparoscopic total gastrectomy (LTG) from the FUGES-002 study (ClinicalTrials.gov, NCT02333721) in which the 5-year disease-free survival (DFS), 5-year overall survival (OS), and recurrence patterns were compared between the two groups. Results: Prior to matching, there were 48 cases in the RTG group and 263 cases in the LTG group; patients in the LTG group had more advanced cT and pT stages (P=0.044 and 0.006, respectively) compared to the RTG group. After matching, there were 48 cases in the RTG group and 96 cases in the LTG group; however, no statistically significant differences were observed in the baseline clinical characteristics between the two groups (all P>0.05). Both groups had a median follow-up of 72 months. The 5-year DFS rates were 75.0% (95%CI: 63.7%- 88.3%) in the RTG group and 61.4% (95%CI: 52.5%-72.0%) in the LTG group (P=0.116). Similarly, the 5-year OS rates were 79.2% (95%CI: 68.5%-91.5%) and 64.6% (95%CI: 55.7%-74.9%) in the RTG and LTG groups, respectively (P=0.100). Within 5 years after surgery, tumor recurrence occurred in 10 patients (20.8%) in the RTG group and 33 patients (34.4%) in the LTG group (P=0.124), and peritoneal recurrence was the predominant pattern in both groups (8.3%[4/48] vs. 10.4%[10/96]; risk difference: -0.02,P=0.554). Gastric cancer-related death was the predominant cause of death in both groups (16.7% [8/48] vs. 31.2% [30/96]; risk difference: -0.15, P=0.064). Among patients stratified by different pathological stages, no statistically significant differences were found in DFS, OS, or recurrence rates between the RTG and LTG groups (all P>0.05). Conclusions: We find the long-term oncological outcomes of RTG for locally advanced proximal gastric cancer to be noninferior to those of LTG. RTG should therefore be considered as a valid option for standardized minimally invasive surgery for locally advanced proximal gastric cancer.

The deep integration of artificial intelligence (AI) and multimodal data in the medical field presents vast application prospects, with its implementation in robotic surgery still in the early stages. Surgical robots assist surgeons in decision-making and operation through quantifiable data and visualized imaging, where data serves as the key driver of innovation for AI in robotic surgery. AI is pushing the boundaries of robotic autonomy, enhancing the surgical experience and improving both the quality and efficiency of procedures. This paper focuses on artificial intelligence surgery, especially the key applications of AI in robotic gastrointestinal surgery, systematically reviewing recent advances in surgical scene enhancement, surgical phase recognition, instrument tracking, intraoperative force feedback, and autonomous manipulation. Furthermore, it discusses major challenges including the scarcity of high-quality data, limited interpretability of algorithms, and the need for real-time performance. Although fully autonomous robotic surgery remains a long-term goal, the pathway toward progressive implementation is becoming increasingly clear.

Nowadays, robotic surgery is an important trend in the surgical treatment for colorectal cancer. Based on the previous version, the Robotic Surgery Group, Colorectal Cancer Committee of Chinese Medical Doctor Association convened the national experts to discuss and reach a consensus on the application standards for robotic colorectal cancer surgery, hoping to promote the application and promotion of robotic surgery.

Low anterior resection syndrome (LARS) is a common bowel dysfunction syndrome following sphincter-preserving surgery for rectal cancer, characterized by stool storage dysfunction and evacuatory dysfunction. It has become a critical factor adversely affecting patients' quality of life and long-term clinical outcomes. Currently, the pathogenic mechanisms of LARS remain incompletely elucidated, and high-quality evidence to guide clinical practice is still lacking. However, emerging evidence suggests that strategic optimization across the clinical management pathway-including precision oncology planning, surgical technique selection, multidimensional symptom profiling, proactive prevention protocols, and comprehensive symptom management-may effectively reduce LARS severity and improve survivorship outcomes. Given the absence of consensus guidelines for LARS management among clinicians across China, the Chinese Society of Coloproctology (Chinese Medical Doctor Association) organized domestic experts in relevant fields. Through systematic review of global research findings, integration of international expertise and guidelines, and adaptation to domestic clinical realities, we developed the "Chinese Expert Consensus on the Diagnosis and Treatment of Low Anterior Resection Syndrome (2025 Edition)". This consensus elaborates on key aspects including the definition, clinical manifestations, risk factors, pathophysiological mechanisms, symptom assessment, treatment modalities, and prevention strategies for LARS, aiming to standardize the diagnosis and management of LARS in China.