1.The influence of two-way referral model on treatment and prognosis of patients with chronic heart failure
Yijun SUN ; Xinyu ZHANG ; Yue HU ; Zongwei LIN ; Jie XIAO ; Peng LI ; Xin ZHAO ; Huafang ZHANG ; Bo QIN ; Dequan JIA ; Tao ZHANG ; Jian MA ; Hongping CHEN ; Chunju ZHANG ; Xinwei GENG ; Kaiyan ZHANG ; Man ZHENG ; Fenglei ZHANG ; Yan LANG ; Hegong HOU ; Peng LIU ; Haifeng JIA ; Jianjun LU ; Kai ZHAO ; Hui ZHAO ; Jiechang XU ; Mi ZHANG ; Xiuxin LI ; Dongxia ZHANG ; Lin ZHONG ; Hui ZHAO ; Fangfang LIU ; Yan LIU ; Dongxia MIAO ; Chengwei WANG ; Hui ZHANG ; Chen WANG ; Fen WANG ; Xuejuan ZHANG ; Huixia LYU ; Xiaoping JI
Chinese Journal of Cardiology 2025;53(11):1244-1253
Objective:To explore the impact of the two-way referral model on compliance and prognosis in patients with heart failure.Methods:This bidirectional cohort study enrolled chronic heart failure (CHF) patients treated at Qilu Hospital of Shandong University or designated primary hospitals between March 2018 and March 2022. Patients were categorized into two groups based on referral status: two-way referral group (participating in the referral model with≥1 follow-up visit at primary hospitals) and the core hospital group (receiving treatment and follow-up exclusively at Qilu Hospital). Baseline clinical characteristics were collected and compared between groups. Patients underwent followed-up, with primary endpoints including follow-up rate, drug (β-blockers, angiotension converting enzyme inhibitor (ACEI)/angiotensin Ⅱ receptor blockers (ARB)/angiotensin receptor-neprilysin inhibitor (ARNI), sodium-glucose cotransporter 2 inhibitors and mineralocorticoid receptor antagonists) utilization rate and target dose achievement rate. Secondary endpoints encompassed changes from baseline in left ventricular ejection fraction (LVEF), left ventricular end-diastolic diameter (LVEDd), and N-terminal pro-brain natriuretic peptide (NT-proBNP), plus cardiovascular mortality and heart failure rehospitalization. Generalized linear mixed models analyzed longitudinal trends in LVEF, LVEDd, and NT-proBNP levels. Kaplan-Meier curves and Cox regression evaluated LVEF recovery rates, supplemented by subgroup analyses. Multivariate logistic regression was used to identify factors influencing target dose achievement rate for β-blockers and ACEI/ARB/ARNI therapies in CHF patients.Results:A total of 357 patients were enrolled, aged 53 (41, 63) years, including 256 males (71.7%). 157 patients were in the two-way referral group and 200 patients in the core hospital-treated group. Compared with the core hospital-treated group, the two-way referral group had lower baseline LVEF (28 (22, 34)% vs. 31 (23, 36)%, P=0.021) and systolic blood pressure (116 (104, 125) mmHg vs. 121 (109, 134) mmHg (1 mmHg=0.133 kPa), P=0.010). The 12-month follow-up rate of the two-way referral group was higher than the core hospital-treated group (73.8% vs. 56.0%, P=0.004). No significant between-group differences were observed in drug utilization rate of β-blockers, ACEI/ARB/ARNI, or sodium-glucose cotransporter 2 inhibitors during follow-up (all P>0.05), while mineralocorticoid receptor antagonists use showed a declining trend in both groups. Although the core hospital-treated group had higher target dose achievement rates for β-blockers (65.4% vs. 49.3%, P=0.042) and ACEI/ARB/ARNI (79.8% vs. 65.8%, P=0.046) than the two-way referral group, multivariate logistic regression indicated that the two-way referral model was not a negative predictor for these outcomes (all P>0.05). Both groups showed improved NT-proBNP, LVEDd, and LVEF from baseline (all P<0.001) with no significant difference in trends between groups (all P>0.05). There was no significant difference in the composite incidence (7.6% vs. 6.5%, P=0.674) and cumulative incidence (log-rank P=0.684) of cardiovascular death and heart failure rehospitalization at 12 months between two groups. Conclusion:The two-way referral model demonstrates advantages in improving medication adherence, drug utilization rates, and targetdoseachievement rates among CHF patients. This model not only promotes cardiac functional recovery but also reduces risks of cardiovascular mortality and heart failure rehospitalization, achieving comparable therapeutic and management outcomes to those observed in core hospital-treated patients.
2.The influence of two-way referral model on treatment and prognosis of patients with chronic heart failure
Yijun SUN ; Xinyu ZHANG ; Yue HU ; Zongwei LIN ; Jie XIAO ; Peng LI ; Xin ZHAO ; Huafang ZHANG ; Bo QIN ; Dequan JIA ; Tao ZHANG ; Jian MA ; Hongping CHEN ; Chunju ZHANG ; Xinwei GENG ; Kaiyan ZHANG ; Man ZHENG ; Fenglei ZHANG ; Yan LANG ; Hegong HOU ; Peng LIU ; Haifeng JIA ; Jianjun LU ; Kai ZHAO ; Hui ZHAO ; Jiechang XU ; Mi ZHANG ; Xiuxin LI ; Dongxia ZHANG ; Lin ZHONG ; Hui ZHAO ; Fangfang LIU ; Yan LIU ; Dongxia MIAO ; Chengwei WANG ; Hui ZHANG ; Chen WANG ; Fen WANG ; Xuejuan ZHANG ; Huixia LYU ; Xiaoping JI
Chinese Journal of Cardiology 2025;53(11):1244-1253
Objective:To explore the impact of the two-way referral model on compliance and prognosis in patients with heart failure.Methods:This bidirectional cohort study enrolled chronic heart failure (CHF) patients treated at Qilu Hospital of Shandong University or designated primary hospitals between March 2018 and March 2022. Patients were categorized into two groups based on referral status: two-way referral group (participating in the referral model with≥1 follow-up visit at primary hospitals) and the core hospital group (receiving treatment and follow-up exclusively at Qilu Hospital). Baseline clinical characteristics were collected and compared between groups. Patients underwent followed-up, with primary endpoints including follow-up rate, drug (β-blockers, angiotension converting enzyme inhibitor (ACEI)/angiotensin Ⅱ receptor blockers (ARB)/angiotensin receptor-neprilysin inhibitor (ARNI), sodium-glucose cotransporter 2 inhibitors and mineralocorticoid receptor antagonists) utilization rate and target dose achievement rate. Secondary endpoints encompassed changes from baseline in left ventricular ejection fraction (LVEF), left ventricular end-diastolic diameter (LVEDd), and N-terminal pro-brain natriuretic peptide (NT-proBNP), plus cardiovascular mortality and heart failure rehospitalization. Generalized linear mixed models analyzed longitudinal trends in LVEF, LVEDd, and NT-proBNP levels. Kaplan-Meier curves and Cox regression evaluated LVEF recovery rates, supplemented by subgroup analyses. Multivariate logistic regression was used to identify factors influencing target dose achievement rate for β-blockers and ACEI/ARB/ARNI therapies in CHF patients.Results:A total of 357 patients were enrolled, aged 53 (41, 63) years, including 256 males (71.7%). 157 patients were in the two-way referral group and 200 patients in the core hospital-treated group. Compared with the core hospital-treated group, the two-way referral group had lower baseline LVEF (28 (22, 34)% vs. 31 (23, 36)%, P=0.021) and systolic blood pressure (116 (104, 125) mmHg vs. 121 (109, 134) mmHg (1 mmHg=0.133 kPa), P=0.010). The 12-month follow-up rate of the two-way referral group was higher than the core hospital-treated group (73.8% vs. 56.0%, P=0.004). No significant between-group differences were observed in drug utilization rate of β-blockers, ACEI/ARB/ARNI, or sodium-glucose cotransporter 2 inhibitors during follow-up (all P>0.05), while mineralocorticoid receptor antagonists use showed a declining trend in both groups. Although the core hospital-treated group had higher target dose achievement rates for β-blockers (65.4% vs. 49.3%, P=0.042) and ACEI/ARB/ARNI (79.8% vs. 65.8%, P=0.046) than the two-way referral group, multivariate logistic regression indicated that the two-way referral model was not a negative predictor for these outcomes (all P>0.05). Both groups showed improved NT-proBNP, LVEDd, and LVEF from baseline (all P<0.001) with no significant difference in trends between groups (all P>0.05). There was no significant difference in the composite incidence (7.6% vs. 6.5%, P=0.674) and cumulative incidence (log-rank P=0.684) of cardiovascular death and heart failure rehospitalization at 12 months between two groups. Conclusion:The two-way referral model demonstrates advantages in improving medication adherence, drug utilization rates, and targetdoseachievement rates among CHF patients. This model not only promotes cardiac functional recovery but also reduces risks of cardiovascular mortality and heart failure rehospitalization, achieving comparable therapeutic and management outcomes to those observed in core hospital-treated patients.
3.Clinical analysis of retrograde distal perfusion via posterior tibial artery in femoral veno-arterial extracorporeal membrane oxygenation
Kun LI ; Dandan DING ; Ruike MA ; Dianming HAN ; Zongwei GAO ; Yifeng DU ; Qingjuan SHANG
Chinese Journal of Emergency Medicine 2024;33(10):1439-1443
Objective:To summarize and analyze the modalities and experience of retrograde distal perfusion with distal perfusion catheter (DPC) via cannulation of the posterior tibial artery in veno-arterial extracorporeal membrane oxygenation(V-A ECMO).Methods:The clinical data of 15 patients who were treated with V-A ECMO and underwent DPC placement via the posterior tibial artery in our hospital from January 2022 to June 2023 were retrospectively analyzed.Results:The V-A ECMO catheterization method in 15 patients was percutaneous puncture catheterization, and all of them underwent surgical incision to indwelling retrograde DPC through the posterior tibial artery: 6 cases of preventive catheterization, 9 cases of remedial catheterization, the success rate of one-time catheterization was 93.33%, and the type of catheter was mainly 6 F sheath (66.67%). There was no ALI in preventive catheterization, and one case of osteofascial compartment syndrome occurred in remedial catheterization, and the catheterization time was (20.73 ± 3.47) min.Conclusions:In V-A ECMO, placement of DPC via the posterior tibial artery for retrograde distal perfusion is perfectly feasible, and has a high success rate, which can prevent or treat lower extremity ischemia.
4.Avenanthramide A potentiates Bim-mediated antineoplastic properties of 5-fluorouracil via targeting KDM4C/MIR17HG/GSK-3β negative feedback loop in colorectal cancer.
Rong FU ; Zhangfeng DOU ; Ning LI ; Xueyuan FAN ; Sajid AMIN ; Jinqi ZHANG ; Yuqing WANG ; Zongwei LI ; Zhuoyu LI ; Peng YANG
Acta Pharmaceutica Sinica B 2024;14(12):5321-5340
Chemoresistance to 5-fluorouracil (5-FU) is a significant challenge in treating colorectal cancer (CRC). Novel combined regimens to thwart chemoresistance are therefore urgently needed. Herein, we demonstrated that the combination of Avenanthramide A (AVN A) and 5-FU has significant therapeutic advantages against CRC. Mechanistically, AVN A directly binds to the S198 site of the histone lysine demethylase KDM4C to promote its degradation, which subsequently fosters H3K9me3 occupancy on the MIR17HG promoter to block its transcription and derepress Bim expression. AVN A enhanced the therapeutic efficacy of 5-FU via impairing the KDM4C/MIR17HG/GSK-3β negative feedback loop. Importantly, the clinical correlation of the KDM4C/MIR17HG/Bim signaling axis with 5-FU response was validated in the refractory CRC patients. We provide evidence for the enhanced effectiveness of 5-FU when combined with AVN A in chemoresistant xenografts, CRC organoids, and Apc Min/+ mouse model. Additionally, AVN A mitigated the systemic adverse effects of 5-FU. Overall, our findings demonstrate that combinatorial therapy with AVN A and 5-FU represents an appealing opportunity and highlights KDM4C/MIR17HG/GSK-3β negative feedback loop which confers therapeutically exploitable vulnerability to chemo-refractory CRC patients.
5.Analysis of peripheral blood lymphocyte subsets and 12 plasma cytokines by flow cytometry in patients with tuberculosis
Xihui MA ; Binyu LI ; Yong HAN ; Xiangrui KONG ; Yujie SUN ; Zongwei GUO ; Xinxin GUO ; Wenzhe CUI ; Li XIAO
Chinese Journal of Laboratory Medicine 2024;47(7):755-762
Objective:To analyze the results of lymphocyte subsets and 12 plasma cytokines in patients with tuberculosis by flow cytometry and to evaluate their diagnostic efficacy in these patients.Methods:This is a retrospective case-control study. A total of 128 patients with evidence of tuberculosis disease or clinically confirmed tuberculosis who were admitted to the 8th Medical Center of PLA General Hospital from January 2022 to December 2023 were included. According to the location of mycobacterium tuberculosis infection, the patients were divided into the pulmonary tuberculosis group (83 cases) and the extrapulmonary tuberculosis group (45 cases), and 100 healthy age-and sex matched people who underwent health check up during the study period were selected as the control group. Flow cytometry was used to detect peripheral blood lymphocyte subsets and 12 plasma cytokines [including 10 pro-inflammatory factors: interleukin (IL)-5, interferon (IFN)-α, IL-2, IL-6, IL-1β, IFN-γ, IL-8, IL-17, IL-12P70, Tumor necrosis factor (TNF)-α, and two anti-inflammatory factors: IL-4, IL-10] in participants of all groups. Spearman correlation method was used to analyze the correlation between lymphocyte subsets and cytokines, binary Logistic regression was used to screen the TB related factors, and receiver operating curve (ROC) was used to evaluate the diagnostic efficacy of TB related factors.Results:Compared with the control group, the absolute number of CD3 +T lymphocytes, CD3 +CD8 +T lymphocytes, CD3 +CD4 +T lymphocytes, NK cells and B cells were lower in pulmonary tuberculosis group and extrapulmonary tuberculosis group (all P<0.05). Except for IL-1β, the levels of other 11 cytokines are all significantly higher in the pulmonary tuberculosis group (all P<0.01), and the levels of IL-6, IFN-γ, IL-17, TNF-α, IL-4 and IL-10 were significantly higher in extrapulmonary tuberculosis group (all P<0.05). Compared with extrapulmonary tuberculosis group, the level of IL-8 was higher in pulmonary tuberculosis group ( P=0.026). Spearman correlation analysis showed that IL-6, IFN-γ and IL-8 were negatively correlated with the absolute numbers of CD3 +T lymphocytes, CD3 +CD8 +T lymphocytes, CD3 +CD4 +T lymphocytes, NK cells and B cells (IL-6: R2=-0.30, -0.28, -0.32, -0.26, -0.28; IFN-γ: R2=-0.36, -0.31, -0.37, -0.25, -0.36; IL-8: R2=-0.14, -0.13, -0.16, -0.14, -0.22; all P<0.05), IL-10 was negatively correlated with the absolute number of CD3 +CD4 +T lymphocytes, NK cells and B cells ( R 2=-0.14, -0.19, -0.21, all P<0.05); Binary Logistic regression analysis showed that IL-6, IFN-γ, IL-8 and IL-10 were the related factors of tuberculosis ( OR=1.809, 1.136, 0.910, 2.218, all P<0.05), ROC curve analysis showed that the AUC of IL-6, IFN-γ, IL-8 and IL-10 in the joint diagnosis of tuberculosis was 0.845, the sensitivity was 0.766, and the specificity was 0.820. Conclusion:The lower absolute number of lymphocyte subsets and cytokine levels in patients with pulmonary tuberculosis and extrapulmonary tuberculosis indicate that their immune function is in a low state, and the higher levels of pro-inflammatory factors (IL-6, IFN-γ, IL-8) and anti-inflammatory factor (IL-10) indicates the higher inflammatory status, and evaluation of these 4 cytokines has satisfactory diagnostic efficacy for tuberculosis.
6.Establishment and clinical application evaluation of early warning diagnostic model for acute exacerbation of chronic obstructive pulmonary disease by combined detection of IL-5, IL-17A and IFN-α
Rui LI ; Xihui MA ; Yujie SUN ; Zongwei GUO ; Cong PENG ; Xiangrui KONG ; Yong HAN ; Xiaoyun ZHANG ; Li XIAO
Chinese Journal of Laboratory Medicine 2024;47(7):770-778
Objective:This study aims to establish an early warning diagnosis model for acute exacerbation of chronic obstructive pulmonary disease (AECOPD) and to provide a simple, rapid, and accurate auxiliary diagnosis basis for clinical practice.Methods:The sample bank of subjects (patients admitted to the Eighth Medical Center of the PLA General Hospital from September 10, 2021, to July 25, 2023) was constructed, including the model establishment cohort [SCOPD group 49, 42 males and 7 females, (69.71±11.16) years old; AECOPD group 53, 49 males and 4 females, (72.60±10.19) years old] and the model validation cohort [SCOPD group 35, 28 males and 7 females, (69.97±10.40) years old; AECOPD group 35, 33 males and 2 females, (71.43±9.67) years old]. Fasting peripheral blood samples were collected, and the expression levels of IL-5, IL-17A, and IFN-α were detected by flow cytometry. Different expression levels were analyzed by Mann-Whitney U test. Binary logistic regression analysis was used to screen the related risk factors of COPD patients in acute exacerbation. The diagnostic efficacy of the model was evaluated by the receiver operating characteristic (ROC) curve.Results:The levels of IL-5 [1.64 (0.60, 2.86) pg/ml], IL-17A [1.42 (0.88, 2.29) pg/ml], and IFN-α [0.91 (0.59, 1.81) pg/ml] in the SCOPD group were significantly decreased compared with the AECOPD group IL-5 [4.68 (2.34, 9.40) pg/ml, Z=-5.033, P<0.001], IL-17A [2.33 (1.59, 4.62) pg/ml, Z=-3.919, P<0.001], IFN-α [2.83 (0.91, 3.75) pg/ml, Z=-4.127, P<0.01] in the cohort of model establishment. The results of binary logistic regression analysis between SCOPD and AECOPD groups showed that IL-5, IL-17A, and IFN-α were independent risk factors for acute exacerbation of patients with COPD ( P<0.05). And the regression equation is Y=-2.861+0.364×IL-5+0.385×IL-17A+0.445×IFN-α. The AUC value of IL-5, IL-17A, IFN-α and combined detection was 0.866 ( P<0.001). Compared to the SCOPD group and the AECOPD group in the cohort of model validation, the receiver operating characteristic (ROC) curve showed that the combined model of three (AUC=0.858, P<0.001) could be used to diagnose the AECOPD. And the Kappa value was 0.773( P<0.05). Conclusion:The combined detection of IL-5, IL-17A, and IFN-α has high diagnostic efficacy for patients with acute exacerbation of COPD. This method provides a new potential tool for the clinical diagnosis of AECOPD and has the value of further exploration and optimization, promotion, and application.
7.The mechanism of action of partial splenic artery embolization in treatment of liver cirrhosis and hypersplenism
Zongwei LI ; Yaqin WANG ; Yuewei ZHANG
Journal of Clinical Hepatology 2023;39(7):1714-1720
Hypersplenism is a common complication caused by liver cirrhosis and portal hypertension, and at present, splenectomy and partial splenic artery embolization (PSE) are the main methods for the treatment of hypersplenism. Splenectomy has a marked effect in the treatment of hypersplenism and can significantly improve the clinical symptoms of patients with hypersplenism. Compared with splenectomy, PSE causes partial splenic parenchymal infarction and thus achieve similar clinical efficacy as partial splenectomy while preserving the spleen and its function. Although PSE is an effective method for the treatment of hypersplenism, there are few reports on the effect of PSE on liver fibrosis, immunity, and liver regeneration in China and globally. This article summarizes the common causes of hypersplenism, the mechanism of PSE in the treatment of hypersplenism, the therapeutic effect of different embolization methods and materials, and the effect of PSE on liver fibrosis, immunity, and liver regeneration, so as to provide a theoretical basis and new ideas for the clinical treatment of hypersplenism.
8.Content determination of ginsenoside Rb1, cinnamic acid, paeoniflorin and berberine in Wenxin Formula based on UPLC-MS/MS MRM mode
Zongwei WANG ; Xuena LI ; Chang LIU ; Guangli YAN ; Xijun WANG ; Hui SUN
International Journal of Traditional Chinese Medicine 2022;44(10):1138-1143
Objective:To establish a qualitative and quantitative analysis method of ginsenoside Rb1, cinnamic acid, paeoniflorin and berberine in Wenxin formula based on UPLC-MS/MS MRM model so as to provide a rapid and accurate evaluation method for the research and development of new drugs.Methods:Adopting Waters ACQUITY UPLCTM HSS T3 (2.1 mm×100 mm, 1.8 μm) and gradient elution was performed by mobile methanol-0.03% formic acid water. chromatographic column was used with electrospray ionization source in the scanning mode of multiple reactive ion monitoring (MRM) for ion separation and screening. The retention time and the relative abundance ratio (qualitative ion pairs/quantitative ion pairs) was used for qualitative analysis, while quantitative ion pairs was used for quantitative analysis.Results:The four components tested in Wenxin Formula have been qualitatively detected and showed a good linear relationship, the method showed accuracy, precision, repeatability, and stability, the recovery rate was 96.24%-104.19% and RSD was 1.29%-3.30%. Conclusion:The established method is simple, accurate, rapid and sensitive, which is reliable for the qualitative and quantitative study of the four main components in Wenxin Formula.
9.Target definition for internal mammary lymph node irradiation based on distribution of internal mammary sentinel lymph node developed on SPECT/CT fusion imaging
Xue WANG ; Wei WANG ; Jianbin LI ; Min XU ; Zongwei HUO ; Pengfei QIU
Chinese Journal of Radiological Medicine and Protection 2019;39(7):511-516
Objective To explore the target definition for internal mammary lymph nodes ( IMLNs) irradiation based on the distribution of internal mammary sentinel lymph nodes ( IM-SLNs ) developing on SPECT/CT fusion imaging. Methods A total of 709 breast cancer patients who underwent preoperative SPECT/CT fusion imaging examination in IM-SLN from 2014 to 2018 were selected. All of the selected patients were first diagnosed and did not receive neoadjuvant treatment before SPECT/CT examination. Finally, totally 97 patients with 136 positive imaging IM-SLNs were included in this study. The clinical target volumes ( CTVs) were delineated according to the consensus guidelines from RTOG and DBCG and defined as CTVRTOG and CTVDBCG , respectively. The positional relationship of CTVRTOG , CTVDBCG and IM-SLNs were determined. Results The number of IM-SLNs from the first to fifth intercostal spaces were 55, 40, 33, 6 and 1, respectively. And the number of IM-SLNs in the first three intercostal spaces accounted for 94. 85% of the total. The average distance from the edge of CTVRTOG to the centre points and the edges of IM-SLNs were 4. 10 mm ( 95%CI 3. 54-4. 65 mm) and 6. 40 mm ( 95%CI 5. 81-6. 98 mm), respectively (t=-30. 486,P<0. 05). For the CTVDBCG, the average distance was 1. 60 mm ( 95%CI 1. 16-2. 05 mm) and 3. 34 mm ( 95%CI 2. 78-3. 89 mm) , respectively ( t=-16. 364,P<0. 05) . The average distances from the edge of CTV to the centre points and the edge of IM-SLNs for CTVRTOG were all significantly greater than those for CTVDBCG(t=16. 640, 19. 815, P<0. 05). The rate of covering IM-SLN center points for CTVRTOG and CTVDBCG were 18. 4% and 60. 3%, respectively. In order to cover 90%or 100% of the IM-SLN center points, the edge of CTVRTOG should be expanded by 8 or 15 mm, respectively, and the edge of CTVDBCG should be expanded by 5 or 13 mm, respectively. If the diameter of IM-SLN was assumed as 5 mm, the edge of CTVRTOG needed an expansion of 11 or 17 mm to contain 90%or 100% of IM-SLNs, respectively, while the edge of CTVDBCG needed 7 or 16 mm to cover 90% or 100%of IM-SLNs, respectively. Conclusions It is reasonable to include the first three intercostal spaces IMLNs for prophylactic irradiation based on the distribution of IM-SLNs. However, CTVs based on the two guidelines are both insufficient to cover 90% of IM-SLNs.
10. Animal study on master-slave system controlled robot-assisted flexible endoscopy in gastricendoscopy examination
Xiuli ZHANG ; Hao LIU ; Lihua PENG ; Jing YANG ; Chongyang WANG ; Yuanyuan ZHOU ; Wei JIANG ; Shufang WANG ; Bin YAN ; Weifeng WANG ; Yichao SHI ; Zongwei LI ; Yunsheng YANG
Chinese Journal of Digestion 2018;38(6):361-364
Objective:
To evaluate the safety, feasibility and operational effectiveness of master-slave system controlled Robot-assisted flexible endoscopy 'YunSRobot’ in upper gastrointestinal endoscopy examination in living pigs.
Methods:
Seven Guangxi BA-MA Mini-pigs underwent upper gastrointestinal endoscopy examination with master-slave system controlled Robot-assisted flexible endoscopy 'YunSRobot’ and Olympus GIF-Q260J gastroendoscope (Japan). The experiment divided into manual operation group and robot operation group. Nine gastroenterologists skilled with endoscopy operation handled the robot once

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