Objective:To evaluate the clinical efficacy of endoscopic treatment of superficial non-ampullary duodenal adenoma.Methods:A retrospective analysis was performed on the clinical data and follow-up information of patients diagnosed with superficial duodenal non-ampullary adenomas via preoperative endoscopy and treated endoscopically at Peking University First Hospital between January 2013 and January 2024. The overall en bloc resection rate, complete resection rate of the lesion, perioperative complications, and recurrence rates were evaluated. Patients were categorized into three groups based on their treatment modality: endoscopic mucosal resection (EMR)（ n=46）, endoscopic submucosal dissection (ESD)（ n=16）, and modified ESD (ESD with snare, ESD-S)（ n=24）. Comparative analyses were conducted to evaluate operative time, en bloc resection rate, and complete resection rate among the three groups. Results:Among 86 patients, the overall en bloc and complete resection rates were 87.2% (75/86) and 86.0% (74/86), respectively. No case of delayed bleeding was observed during the perioperative period. Intraoperative perforation occurred in two patients, both of whom improved following conservative management. Delayed perforation was noted in four patients, and three of them were successfully managed with surgical intervention, while one case was resolved after conservative treatment. During the follow-up period, local recurrence was identified in two patients. Following re-treatment with endoscopy and continuous surveillance, no further recurrence was observed. The operative times for the EMR group, ESD-S group, and ESD group were 4 (1-36) minutes, 25 (5-190) minutes, and 46 (5-150) minutes, respectively. Significant differences were observed in operative times among the three groups ( Hc=49.892, P<0.001). The en bloc resection rates for the EMR, ESD-S, and ESD groups were 80.4% (37/46), 91.7% (22/24), and 100.0% (16/16), respectively. The complete resection rates were 80.4% (37/46), 91.7% (22/24), and 93.8% (15/16) for the respective groups. Conclusion:Endoscopic treatment demonstrates favorable efficacy and safety for superficial non-ampullary duodenal adenoma. In addition to traditional EMR and ESD, ESD-S is also an effective procedure for endoscopic treatment of non-ampullary duodenal adenoma.

Objective:To evaluate the clinical efficacy of endoscopic treatment of superficial non-ampullary duodenal adenoma.Methods:A retrospective analysis was performed on the clinical data and follow-up information of patients diagnosed with superficial duodenal non-ampullary adenomas via preoperative endoscopy and treated endoscopically at Peking University First Hospital between January 2013 and January 2024. The overall en bloc resection rate, complete resection rate of the lesion, perioperative complications, and recurrence rates were evaluated. Patients were categorized into three groups based on their treatment modality: endoscopic mucosal resection (EMR)（ n=46）, endoscopic submucosal dissection (ESD)（ n=16）, and modified ESD (ESD with snare, ESD-S)（ n=24）. Comparative analyses were conducted to evaluate operative time, en bloc resection rate, and complete resection rate among the three groups. Results:Among 86 patients, the overall en bloc and complete resection rates were 87.2% (75/86) and 86.0% (74/86), respectively. No case of delayed bleeding was observed during the perioperative period. Intraoperative perforation occurred in two patients, both of whom improved following conservative management. Delayed perforation was noted in four patients, and three of them were successfully managed with surgical intervention, while one case was resolved after conservative treatment. During the follow-up period, local recurrence was identified in two patients. Following re-treatment with endoscopy and continuous surveillance, no further recurrence was observed. The operative times for the EMR group, ESD-S group, and ESD group were 4 (1-36) minutes, 25 (5-190) minutes, and 46 (5-150) minutes, respectively. Significant differences were observed in operative times among the three groups ( Hc=49.892, P<0.001). The en bloc resection rates for the EMR, ESD-S, and ESD groups were 80.4% (37/46), 91.7% (22/24), and 100.0% (16/16), respectively. The complete resection rates were 80.4% (37/46), 91.7% (22/24), and 93.8% (15/16) for the respective groups. Conclusion:Endoscopic treatment demonstrates favorable efficacy and safety for superficial non-ampullary duodenal adenoma. In addition to traditional EMR and ESD, ESD-S is also an effective procedure for endoscopic treatment of non-ampullary duodenal adenoma.

Objective To investigate the relationship between insomnia,gastrointestinal symptoms,and glycosylated hemoglobin(HbA1c)levels in individuals diagnosed with type 2 diabetes mellitus(T2DM),as well as the related influencing factors.Methods A total of 910 T2DM patients treated in our multicenter from January 2022 to December 2022 were enrolled in this study.General information(gender,age,smoking and drinking history,exercise,course of disease,treatment and complications),HbA1c,Athens Insomnia Scale(AIS)scores and Gastrointestinal Symptoms Rating Scale(GSRS)scores of patients were collected.The differences of sleep and gastrointestinal symptoms between groups were analyzed,and the correlation between the differences and HbA1c was analyzed.Furthermore,the risk factors for non-standard HbA1c were analyzed.Results The AIS score and GSRS score in the HbA1c control group were less than those in the non-standard group(P＜0.01).Insomnia was reported by 37.0％of T2DM patients,and the HbA1c level in the insomnia group was significantly higher than that in the non-insomnia group(10.00％±2.38％vs.8.26％±1.73％,P＜0.01).Gastrointestinal symptoms were present in 57.5％of T2DM patients,and the HbA1c levels in the group with gastrointestinal symptoms were significantly higher than those in the group without gastrointestinal symptoms(9.26％±2.23％vs.8.43％±1.98％,P＜0.01).Furthermore,26.3％of T2DM patients experienced both insomnia and gastrointestinal symptoms.Remarkably,the HbA1c levels in the group with both insomnia and gastrointestinal symptoms were significantly higher than those in the group without either condition(10.18％±2.44％vs.8.45％±1.86％,P＜0.01).Correlation analysis demonstrated a significant association between sleep quality,gastrointestinal function,and HbA1c levels(P＜0.01).The logistic regression analysis result revealed that age,GSRS score,AIS score,and the presence of insomnia combined with gastrointestinal symptoms were independent risk factors for predicting HbA1c≥6.5％(P＜0.01).Having both insomnia and gastrointestinal symptoms concurrently was the strongest risk factor for substandard HbA1c control,and the risk of blood sugar control may increase about 5 times when both appear together.Conclusion Insomnia and gastrointestinal symptoms are common comorbidities in T2DM patients,showing a cross-interfering relationship,and they appear together with poor blood sugar control,interact causally,and amplify each other.

Objective:To evaluate the safety and efficacy of rubber band and clip facilitated endoscopic submucosal dissection (RAC-ESD) for colorectal neoplasms.Methods:A retrospective cohort study was performed. Clinical data of 115 patients with colorectal neoplasm receiving ESD from September 2018 to August 2019 were retrospectively analyzed. Thirty-four patients received RAC-ESD treatment (RAC-ESD group) and 81 received conventional ESD treatment (conventional ESD group). The procedure time, the dissected area per minute during ESD, en bloc resection rate, complete resection rate, curative resection rate, complication occurence and recurrence rate were compared between the two groups.Results:The median specimen area of RAC-ESD group was 6.32 (7.53) cm 2, and the median procedure time was 40.0 (55.0) min. The mean dissected area per minute was 0.14 (0.20) cm 2/min. While in conventional ESD group, the median specimen area was 4.71 (5.02) cm 2, the median procedure time was 50.0 (50.0) min and the mean dissected area per minute was 0.09 (0.07) cm 2/min. The median specimen area of RAC-ESD group was slightly larger and the median procedure time was slightly shorter than those of conventional ESD group, but neither was significantly different(both P>0.05). The median dissected area per minute of RAC-ESD group was significantly larger than that of the conventional ESD group ( P=0.008). The en bloc resection rate, complete resection rate and curative resection rate of RAC-ESD group were 100.0% (34/34), 100.0% (34/34) and 97.1% (33/34), while those of the conventional ESD group were 100.0%(81/81), 96.3%(78/81) and 91.4%(74/81), respectively. There was no ESD-related complication in either group. After 10.0±5.5 months of follow-up, there was no local recurrence in both groups. Conclusion:RAC-ESD may increase resection efficacy with safety.

Objective:To assess the effectiveness and safety of endoscopic submucosal dissection (ESD) in the treatment of early esophagogastric junction (EGJ) cancer and precancerous lesion.Methods:Clinical data of 67 patients with Siewert type Ⅱ early EGJ cancer or precancerous lesion who underwent ESD at Endoscopy Center of Peking University First Hospital from July 2012 to June 2019 were retrospectively analyzed. Clinical and pathological features, technical data and complication rate were reviewed. The factors that may affect the curative resection were analyzed.Results:Among the 67 cases, 5 were protruding type, 59 flat type, and 3 depressed type. The median lesion diameter was 1.6 ( QR: 1.8) cm, the median operation time was 60.0 ( QR: 56.0) min. The en bloc resection rate was 97.0% (65/67), the complete resection rate was 91.0% (61/67), and the curative resection rate was 82.1% (55/67). Factors related to non-curative resection were tumor size ( OR=8.457, 95% CI: 1.227-58.302, P=0.030) and pathological type ( OR=15.133, 95% CI: 1.518-150.870, P=0.021). ESD-related complications occurred in 3 cases (4.5%), including 1 case of delayed hemorrhage who received endoscopic hemostasis therapy, and 2 cases of post-operative cicatricial stricture who then received endoscopic dilation. Fifty-eight patients were followed up, and recurrence was found in 1 patient during follow-up with positive vertical margin who refused subsequent therapy.Metachronous early gastric cancer was found in another patient during follow-up, who was treated with a second ESD. Conclusion:ESD is a safe, effective and less invasive technique for early EGJ cancer and precancerous lesion. Tumor size, boundary and infiltration depth of the lesion should be accurately evaluated before operation to formulate appropriate treatment strategies.

Objective:To assess rapid on-line evaluation (ROLE) of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) for pancreatic masses.Methods:Data of patients with solid pancreatic masses who underwent EUS-FNA in Peking University First Hospital from October 2017 to October 2019 were retrospectively analyzed. Patients were divided into the ROLE group and the control group. The number of FNA passes in ROLE group was decided by the cytopathologist based on the number of pancreatic tissue cells or heteromorphic cells obtained, while that in the control group was decided by the endoscopy physician according to the visual observation of tissue strips. The cytological and histological diagnosis of EUS-FNA specimen were made by another cytopathologist. The gold standard for final diagnosis was based on the histological diagnosis of surgically resected specimens. For patients who did not undergo surgical treatment, the final diagnosis was made based on the clinical course, imaging, tumor markers and feedback on treatment. The diagnostic yield, the accuracy, the sensitivity, the specificity, FNA passes, puncture time and adverse events were compared between the two groups.Results:A total of 87 patients were enrolled, 51 in the ROLE group and 36 in the control group. The diagnostic yield of the ROLE group was higher than that of the control group without significant difference [98.0% (50/51) VS 86.1%(31/36), P=0.078]. The number of FNA passes in the ROLE group was significantly less than that in the control group (median 2 VS 3, P<0.001). No significant difference in mean FNA puncture time was found between the ROLE group and the control group (19.4 min VS 18.5 min, P=0.089). There were no significant differences between the two groups with regard to the diagnostic yield, the sensitivity, the specificity, the positive predictive value, the negative predictive value or the incidence of adverse events. Conclusion:ROLE of EUS-FNA for pancreatic solid tumor may improve tissue acquisition for puncture, reduce the number of FNA passes, and may not significantly increase the procedure time and risk of puncture.

Objective: To evaluate the short-term and long-term efficacy of endoscopic submucosal dissection (ESD) in the treatment of early low rectal cancer and precancerous lesions. Methods: Inclusion criteria: (1) Distance from the lower margin of tumor to the anal was ≤ 5 cm. (2) Early low rectal cancers were any size rectal epithelial tumors with infiltration depth limited to the mucosa and submucosa, which were diagnosed by postoperative pathology as high-grade intraepithelial neoplasia or adenocarcinoma of the rectum with infiltration depth of intramucosal or submucosal cancer (M or SM stage). (3) Precancerous lesions included adenoma and low-grade intraepithelial neoplasia of the rectum. (4) Patients received ESD treatment. Patients with tumor invasion depth over submucosa by pathology were excluded. From January 2008 to January 2018, 63 patients meeting the above criteria in Peking University First Hospital were enrolled in this descriptive cohort study. The disease characteristics, clinical manifestations, pathological types, treatment time, hospitalization time, en bloc resection rate (resection of the whole lesion), complete resection rate (both the horizontal and vertical incision margins were negative), postoperative complications and follow-up results were analyzed. Cummulative survival rate was calculated by Kaplan-Meier. Results: The diameter of the lesion was (29.0±23.4) mm and the distance from the lesion to the anus was (2.7±1.8) cm. The median operation time was 45.0 (range, 10.0 to 360.0) minutes, the median hospitalization time was 3.0 (range, 2.0 to 12.0) days, en bloc resection rate was 100%, complete resection rate was 96.8% (61/63), and 1 case (1.6%) had postoperative bleeding. The follow-up rate was 87.3% (55/63) and the median follow-up time was 57.9 (range, 15.6 to 121.1) months. No local recurrence was found during the follow-up period and the 5-year survival rate was 100%. Conclusion Short- and long-term efficacy of ESD are quite good in the treatment of patients with early low rectal cancer and precancerous lesions.

Objective To evaluate the short?term and long?term efficacy of endoscopic submucosal dissection (ESD) in the treatment of early low rectal cancer and precancerous lesions. Methods Inclusion criteria: (1) Distance from the lower margin of tumor to the anal was ≤5 cm. (2) Early low rectal cancers were any size rectal epithelial tumors with infiltration depth limited to the mucosa and submucosa, which were diagnosed by postoperative pathology as high?grade intraepithelial neoplasia or adenocarcinoma of the rectum with infiltration depth of intramucosal or submucosal cancer (M or SM stage). (3) Precancerous lesions included adenoma and low?grade intraepithelial neoplasia of the rectum. (4) Patients received ESD treatment. Patients with tumor invasion depth over submucosa by pathology were excluded. From January 2008 to January 2018, 63 patients meeting the above criteria in Peking University First Hospital were enrolled in this descriptive cohort study. The disease characteristics, clinical manifestations, pathological types, treatment time, hospitalization time, en bloc resection rate (resection of the whole lesion), complete resection rate (both the horizontal and vertical incision margins were negative), postoperative complications and follow?up results were analyzed. Cummulative survival rate was calculated by Kaplan?Meier. Results The diameter of the lesion was (29.0 ± 23.4) mm and the distance from the lesion to the anus was (2.7±1.8) cm. The median operation time was 45.0 (range, 10.0 to 360.0) minutes, the median hospitalization time was 3.0 (range, 2.0 to 12.0) days, en bloc resection rate was 100%, complete resection rate was 96.8% (61/63), and 1 case (1.6%) had postoperative bleeding. The follow?up rate was 87.3% (55/63) and the median follow?up time was 57.9 (range, 15.6 to 121.1) months. No local recurrence was found during the follow?up period and the 5?year survival rate was 100%. Conclusion Short?and long?term efficacy of ESD are quite good in the treatment of patients with early low rectal cancer and precancerous lesions.

Objective To evaluate the short?term and long?term efficacy of endoscopic submucosal dissection (ESD) in the treatment of early low rectal cancer and precancerous lesions. Methods Inclusion criteria: (1) Distance from the lower margin of tumor to the anal was ≤5 cm. (2) Early low rectal cancers were any size rectal epithelial tumors with infiltration depth limited to the mucosa and submucosa, which were diagnosed by postoperative pathology as high?grade intraepithelial neoplasia or adenocarcinoma of the rectum with infiltration depth of intramucosal or submucosal cancer (M or SM stage). (3) Precancerous lesions included adenoma and low?grade intraepithelial neoplasia of the rectum. (4) Patients received ESD treatment. Patients with tumor invasion depth over submucosa by pathology were excluded. From January 2008 to January 2018, 63 patients meeting the above criteria in Peking University First Hospital were enrolled in this descriptive cohort study. The disease characteristics, clinical manifestations, pathological types, treatment time, hospitalization time, en bloc resection rate (resection of the whole lesion), complete resection rate (both the horizontal and vertical incision margins were negative), postoperative complications and follow?up results were analyzed. Cummulative survival rate was calculated by Kaplan?Meier. Results The diameter of the lesion was (29.0 ± 23.4) mm and the distance from the lesion to the anus was (2.7±1.8) cm. The median operation time was 45.0 (range, 10.0 to 360.0) minutes, the median hospitalization time was 3.0 (range, 2.0 to 12.0) days, en bloc resection rate was 100%, complete resection rate was 96.8% (61/63), and 1 case (1.6%) had postoperative bleeding. The follow?up rate was 87.3% (55/63) and the median follow?up time was 57.9 (range, 15.6 to 121.1) months. No local recurrence was found during the follow?up period and the 5?year survival rate was 100%. Conclusion Short?and long?term efficacy of ESD are quite good in the treatment of patients with early low rectal cancer and precancerous lesions.

OBJECTIVETo compare the clinical efficacy of endoscopic submucosal dissection (ESD) and surgical resection for early gastric cancer (EGC). Method The retrospective case-control study was conducted. Clinical and pathological data of 246 patients who were diagnosed as early gastric cancer and received ESD or surgery for EGC at Peking University First Hospital from 2010 to 2015 were collected, including 171 males and 75 females with average age of (63.6±10.8) years. Eighty-one patients received ESD according to the following indications: no peritoneal lymph node metastasis in preoperative CT; differentiated mucosal cancer without ulcer findings, irrespective of tumor size; differentiated mucosal cancer with diameter ≤30 mm and ulcer; differentiated minimal submucosal invasive cancer (≤500 μm from the muscularis mucosa) with diameter ≤30 mm and without ulcer; undifferentiated mucosal cancer with diameter ≤20 mm and without ulcer; high grade intraepithelial neoplasia with diameter >20 mm; mucous lesion recurrence after EMR without chance of EMR again. One-hundred and sixty-five cases received surgery according to the findings of peritoneal lymph node metastasis in preoperative CT or the growth of carcinoma beyond the expanding criteria of ESD (surgery group). En block resection rate (removing all the lesion at once) and curative resection rate [standard: negative horizontal and vertical surgical margins; negative vessel carcinoma embolus; pT1a and pT1b (SM1); lesion diameter <3 cm with differentiated type, pT1a with ulcer or pT1b(SM1); lesion diameter <2 cm with undifferentiated type, pT1a without ulcer] were compared between two groups. According to pathological results, including tumor location, macrographic type, size, pathological type, differentiated type, invasive depth, surgical margin, vessel carcinoma embolus and lymph node metastasis, all the patients meeting the ESD curative resection criteria in both groups were subgrouped in order to compare the baseline information, surgical conditions, postoperative complications, recovery, follow-up and survival. The end of follow up was December 2016.

RESULTSThe en block resection rate was 93.8%(76/81), while curative resection rate was 91.4% (74/81) in ESD group. The en block resection rate and curative resection rate was both 100% in surgery group. According to the pathological results, 170 cases were confirmed to be in accordance with the curative resection standard, including 74 cases in ESD group and 96 cases in surgery group. Subgroup analysis showed that ESD group had older cases (t=2.939, P=0.004) and more cases with lesion in upper 1/3 of stomach (χ=8.992, P=0.011), while no significant differences in tumor size, invasion depth, degree of differentiation (t=1.875, 2.393, 3.074, all P>0.05) were observed. Compared to surgery group, ESD group had significantly shorter operative time [(76.4±46.3) minutes vs. (271.9±92.6) minutes, t=17.950, P=0.000], shorter fasting period [(3.2±1.4) days vs. (8.8±5.4) days, t=9.801, P=0.000], shorter hospital stay [(9.0±5.8) days vs. (22.1±9.1) days, t=11.471, P=0.000], less costs [(2.6±2.2) ten thousand yuan vs (7.4±3.0) ten thousand yuan, t=12.235, P=0.000] and lower morbidity of early-stage postoperative complication [1.4%(1/74) vs. 20.8%(20/96), χ=14.502, P=0.013]. One-hundred and sixty-two of 170 patients (95.3%) were followed up for median time of 28 months (range, 11 to 84 months). The recurrence rate was 2.7% (2/74) in ESD group and 4.2% (4/96) in surgery group respectively without significant difference(χ=1.787, P=0.409). Five-year overall survival rate was 97.5% and 96.5% respectively without significant difference as well (χ=0.115, P=0.735).

CONCLUSIONSESD is an effective and safe treatment of early gastric cancer. It can be used as the first protocol for well-differentiated mucosal or SM1 EGC without ulcer as well as undifferentiated mucosal EGC with diameter less than 2 cm.