1.Joint Relation Extraction of Famous Medical Cases with CasRel Model Combining Entity Mapping and Data Augmentation
Yuxin LI ; Xinghua XIANG ; Hang YANG ; Dasheng LIU ; Jiaheng WANG ; Zhiwei ZHAO ; Jiaxu HAN ; Mengjie WU ; Qianzi CHE ; Wei YANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):218-225
ObjectiveTo address the challenges of unstructured classical Chinese expressions, nested entity relationships, and limited annotated data in famous traditional Chinese medicine(TCM) case records, this study proposes a joint relation extraction framework that integrates data augmentation and entity mapping, aiming to support the construction of TCM diagnostic knowledge graphs and clinical pattern mining. MethodsWe developed an annotation structure for entities and their relationships in TCM case texts and applied a data augmentation strategy by incorporating multiple ancient texts to expand the relation extraction dataset. A cascade binary tagging framework for relation triple extraction(CasRel) model for TCM semantics was designed, integrating a pre-trained bidirectional encoder representations from transformers(BERT) layer for classical TCM texts to enhance semantic representation, and using a head entity-relation-tail entity mapping mechanism to address entity nesting and relation overlapping issues. ResultsExperimental results showed that the CasRel model, combining data augmentation and entity mapping, outperformed the pipeline-based Bert-Radical-Lexicon(BRL)-bidirectional long short-term memory(BiLSTM)-Attention model. The overall precision, recall, and F1-score across 12 relation types reached 65.73%, 64.03%, and 64.87%, which represent improvements of 14.26%, 7.98%, and 11.21% compared to the BRL-BiLSTM-Attention model, respectively. Notably, the F1-score for tongue syndrome relations increased by 22.68%(69.32%), and the prescription-syndrome relations performed the best with the F1-score of 70.10%. ConclusionThe proposed framework significantly improves the semantic representation and complex dependencies in TCM texts, offering a reusable technical framework for structured mining of TCM case records. The constructed knowledge graph can support clinical syndrome differentiation, prescription optimization, and drug compatibility, providing a methodological reference for TCM artificial intelligence research.
2.Construction of a community-family management model for older adults with mild cognitive impairment
Junli CHEN ; Han ZHANG ; Yefan ZHANG ; Yanqiu ZHANG ; Runguo GAO ; Qianqian GAO ; Weiqin CAI ; Haiyan LI ; Lihong JI ; Zhiwei DONG ; Qi JING
Chinese Journal of Rehabilitation Theory and Practice 2026;32(1):90-100
ObjectiveTo develop a community-family management model for older adults with mild cognitive impairment (MCI) and to formulate detailed application specifications, and to fully leverage the initiative of communities and families under limited resource conditions, for achieving community-based early detection and early intervention for older adults with MCI. MethodsA systematic literature review was conducted to identify pertinent publications. Corpus-based research methodologies were employed to extract, refine, integrate and synthesize management elements, thereby establishing the specific content and service processes for each stage of the management model. Utilizing the 5W2H analytical framework, essential elements such as management stakeholders, target populations, content and methods for each stage were delineated. The model and its application guidelines were finalized through expert consultation and demonstration. ResultsAn expert evaluation of the management model yielded mean scores of 4.84, 4.32 and 4.84 for acceptability, feasibility and systematicity, respectively. By integrating the identified core elements with expert ratings and feedback, the final iteration of the community-family management model for older adults with MCI was formulated. This model comprised of five stages: screening and identification, comprehensive assessment, intervention planning, monitoring and referral pathways to ensure implementation, and enhanced support for communities, family members and caregivers. Additionally, it included 18 specific application guidelines. ConclusionThe proposed management model may theoretically help delay cognitive decline, improve cognitive function and potentially promote reversal from MCI to normal cognition. It may also enhance the awareness and coping capacity of older adults and their families, strengthen community healthcare professionals' ability to early identify and manage MCI.
3.Causal relationship between circulating inflammatory cytokines and bone mineral density based on two-sample Mendelian randomization
Shuai CHEN ; Jie JIN ; Huawei HAN ; Ningsheng TIAN ; Zhiwei LI
Chinese Journal of Tissue Engineering Research 2025;29(8):1556-1564
BACKGROUND:Many recent studies have shown a close relationship between inflammatory cytokines and osteoporosis and bone mineral density(BMD).However,the causal relationship between inflammatory cytokines and BMD has not been fully revealed. OBJECTIVE:To explore the potential causal relationship between inflammatory cytokines and BMD using a two-sample Mendelian randomization analysis. METHODS:The single nucleotide polymorphisms associated with 41 circulating inflammatory cytokines were selected from the open database of genome-wide association studies(GWAS)as instrumental variables.The GWAS data about BMD were from the Genetic Factors for Osteoporosis Consortium,involving a total of 32 735 individuals of European ancestry.Inverse variance weighting was used as the primary analysis to evaluate the causal effect.Weighted median,MR Egger regression,simple mode,and weighted mode methods were used to supplement the explanation.We used the MR-Egger intercept and MR-PRESSO method to conduct a pleiotropy test,the Cochran's Q test was used to determine whether there was heterogeneity in the results,and the leave-one-out method was used to evaluate the stability of the results.In addition,to more accurately assess the causality,the Bonferroni-corrected test was used to identify inflammatory cytokines that have a strong causal relationship with BMD. RESULTS AND CONCLUSION:(1)According to the results of the inverse variance weighting method,we found a positive causal relationship between interleukin-8 and lumbar spine BMD[β=0.075,95%confidence interval(CI):0.033-0.117,P=0.000 5),while a negative causal relationship between interleukin-17 and lumbar spine BMD(β=-0.083,95%CI:-0.152 to-0.014,P=0.018).There might be a negative causal relationship between tumor necrosis factor b and femoral neck BMD(β=-0.053,95%CI:-0.088 to-0.018,P=0.003),while a positive causal relationship between basic fibroblast growth factor and femoral neck BMD(β=0.085,95%CI:0.016-0.154,P=0.015).There might be a negative causal relationship between macrophage inflammatory protein-1a and total body BMD(β=-0.056,95%CI:-0.105 to-0.007,P=0.025).There was a negative causal relationship between interleukin-5(β=-0.019,95%CI:-0.031 to-0.006,P=0.004),stromal cell-derived factor-1a(β=-0.022,95%CI:-0.038 to-0.005,P=0.010),hepatocyte growth factor(β=-0.021,95%CI:-0.041 to-0.002,P=0.030),interleukin-4(β=-0.016,95%CI:-0.032 to-0.001,P=0.034)and heel BMD,while a positive causal relationship between nerve growth factor(β=0.019,95%CI:0.002-0.036,P=0.033),granulocyte colony-stimulating factor(β=0.011,95%CI:0.000-0.022,P=0.050),and heel BMD.Meanwhile,after the Bonferroni-corrected test,there was a strong positive causal effect between interleukin-8 and lumbar spine BMD(P=0.000 5).And consistent directional effects for all analyses were observed in MR Egger,weighted median,simple mode,and weighted mode methods.(2)Sensitivity analyses revealed no heterogeneity,pleiotropy,or outliers for the causal effect of circulating inflammatory cytokines on BMD.
4.Current status of acupuncture education and reflections on future reforms.
Zhiwei FENG ; Shan HAN ; Yang LI ; Yu XING ; Jingyi LIU ; Peng BAI
Chinese Acupuncture & Moxibustion 2025;45(7):1003-1007
Education is a crucial element in the development of acupuncture as a discipline, providing essential talent support for its future advancement. A structured interview was conducted with renowned acupuncture expert Professor ZHAO Jiping, focusing on key topics such as the core of acupuncture education, the connotation and development of acupuncture textbooks, and acupuncture teaching models. Through in-depth discussion, the current problems in acupuncture education were analyzed, and possible solutions were explored, aiming to offer ideas for the innovative development of acupuncture education.
Acupuncture/trends*
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Humans
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Acupuncture Therapy
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China
5.Pollution characteristics and ecological risk assessment of typical pharmaceutical and personal care products in Zhengzhou rivers
Xie WANG ; Qingqing MA ; Suge LU ; Hongli LIU ; Yongheng SU ; Zhiwei HAN ; Congke ZHANG
Journal of Environmental and Occupational Medicine 2025;42(11):1330-1335
Background The residues of pharmaceutical and personal care products (PPCPs) in aquatic environments have become an increasingly prominent urban pollution issue, attracting widespread attention. The analysis of PPCPs pollution in water environments holds profound implications in Zhengzhou, a strategically important city in central China. Objective To analyze the pollution characteristics of PPCPs, such as antidepressants and antibiotics, in rivers of Zhengzhou and assess associated ecological risk. Methods Water samples were collected from three rivers of Zhengzhou, and 13 PPCPs (5 antibiotics and 8 antidepressants) were analyzed quantitatively by high performance liquid chromatography-triple quadrupole mass spectrometry (HPLC-MS/MS) after automatic solid phase extraction. Risk quotient (RQ) was applied to assess ecological risk of PPCPs with high concentration. Results The primary antibiotics pollutants were norfloxacin and ofloxacin, both with a detection rate of 100%. Among antidepressants, venlafaxine and citalopram showed the highest detection rates at 92.3% and 88.5%, respectively. The detected antibiotics with the highest average concentrations included ofloxacin and sulfamethoxazole with concentrations of 99.8 ng·L−1and 96.2 ng·L−1, respectively, while antidepressants venlafaxine and citalopram were detected with the highest average concentrations of 15.2 ng·L−1and 1.35 ng·L−1, respectively. The inter-river comparisons revealed statistically significant differences in contaminant loads (P<0.05). The sums of average PPCP concentrations at sampling points in the Jialu River and Suoxu River were 83.4 ng·L−1 and 100.4 ng·L−1, respectively. The Xiaoqing River exhibited higher pollution levels than both the Jialu and Suoxu Rivers, with a total average concentration of 478.4 ng·L−1, where ofloxacin and sulfamethoxazole were identified as the predominant pollutants. The results of ecological risk assessment indicated the RQ contributed by sulfamethoxazole ranged between 0.50−0.95 in the Xiaoqing River, suggesting a controllable risk but requiring prioritized mitigation strategies. The RQ values of norfloxacin were distributed within the range of 0.10-0.30, indicating a moderate ecological risk. The RQ values for ofloxacin and venlafaxine remained below 0.10, indicating a lower risk level. Conclusion PPCPs contamination is positive in the rivers of Zhengzhou, and sulfamethoxazole and ofloxacin are the primary cantaminants. The Xiaoqing River exhibits the highest pollution levels. The initial risk assessment show that sulfamethoxazole and norfloxacin pose potential ecological risks, requiring prioritized contamination management.
6.Mid-Term Efficacy Evaluation of Laparoscopic Sacrocolpopexy vs Laparoscopic Pectopexy for Pelvic Organ Prolapse
Yuqin LEI ; Yuchen SUN ; Tianyi SUN ; Xuesong HAN ; Zhiwei ZHAO ; Yali MIAO
Journal of Sichuan University (Medical Sciences) 2025;56(4):1104-1111
Objective To evaluate the perioperative safety and mid-term outcomes of laparoscopic sacrocolpopexy(LSC)and laparoscopic pectopexy(LP)for pelvic organ prolapse(POP).Methods A retrospective analysis was conducted on 274 POP patients,including 178 who underwent LSC and 96 who underwent LP,between August 2017 and January 2023.The extent of prolapse and anatomical restoration were assessed preoperatively and postoperatively using the Pelvic Organ Prolapse Quantification(POP-Q)system.Quality of life outcomes were evaluated with validated questionnaires,including Pelvic Floor Distress Inventory-short form 20(PFDI-20),Pelvic Floor Impact Questionnaire-short form 7(PFIQ-7),and Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire-12(PISQ-12).Postoperative patient satisfaction was assessed during follow-ups.Postoperative anatomical restoration,perioperative status,and postoperative complications,recurrence,and quality of life were compared between the two groups.Multivariate logistic regression was performed to identify postoperative risk factors for recurrence.Results The operative time in the LSC group was significantly shorter than that in the LP group(P<0.05).Intraoperative blood loss was higher in the LSC group compared to that in the LP group(P<0.05).The LSC group also exhibited higher rates of de novo stress urinary incontinence and constipation(P<0.05).The mean follow-up duration was(35.91±16.90)months.The positions of the indicator points(Aa,Ba,C,Ap,and Bp)in the POP-Q classification after the operation were all better than those before the operation.The PFDI-20 score,PFIQ-7 score,and PISQ-12 score all improved compared to those before the operation(P<0.05).Comparison of preoperative and postoperative PFDI-20,PFIQ-7,and PISQ-12 scores showed no intergroup differences.Compared with the LP group,the LSC group had the lower preoperative POP-Q measurements at points Aa and Ba(P<0.05),but superior postoperative measurements for all the indicator points(Aa,Ba,C,Ap,and Bp)(P<0.05).Recurrence occurred in 28 cases in the LP group and 4 cases in the LSC group,with the LP group presenting a significantly higher anatomical recurrence rate than the LSC group did(31.46%[28/89]vs.2.41%[4/166],P<0.05).The subjective cure rate(100%)and objective cure rate(97.59%)in the LSC group were superior to those in the LP group(88.76%and 68.54%,respectively;P<0.05).The results of the multivariate logistic regression analysis showed that,after adjusting for the confounding factors,including age,gravidity,parity,body mass index,and duration of POP,the risk of recurrence after LSC surgery was 0.044 times that after LP(odds ratio[OR],0.044;95%CI,0.015-0.133;P<0.001).Conclusion Mid-term outcomes of LP with partial cervical preservation appear inferior to those of LSC,with LSC demonstrating superior anatomical restoration and lower rates of anatomical recurrence.However,improvements in sexual function and quality of life are comparable between the two procedures.Further evaluation with larger sample sizes and longer follow-up is warranted to better characterize long-term outcomes.
7.Evaluation of GRADE Clinical Research Evidence of Chinese Patent Medicine Combined with Western Medicine in Treatment of Hypertension with Dyslipidemia
Jiaheng WANG ; Yukun LI ; Liangyu CUI ; Yilan ZHENG ; Zhiwei ZHAO ; Cong REN ; Tianyue JING ; Tong YIN ; Liying WANG ; Xuejie HAN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(10):95-105
ObjectiveTo evaluate the effect of antihypertensive and lipid-regulating Chinese patent medicine combined with conventional Western medicine in the treatment of hypertension with dyslipidemia. To carry out the evidence synthesis of clinical research and provide evidence-based evidence support for clinical decision-making. MethodThe databases including China National Knowledge Infrastructure (CNKI),Wanfang Data Knowledge Service Platform (WF),VIP,SinoMed,Embase,PubMed,Web of Science (WOS),and the Cochrane Library were searched for randomized controlled trials (RCT) of all listed Chinese patent medicines in the treatment of hypertension with dyslipidemia from the establishment of the databases to April 15,2023. The literature was screened and extracted,and the risk of bias tool 2.0 (RoB2) was used to assess the quality and risk of bias of the methodology. Revman 5.4.1 software was used to analyze the outcome indicators. Grading of Recommendations Assessment,Development and Evaluation (GRADE) was applied to assess the quality of evidence formed by clinical research data. The inclusion and recommendation of Chinese patent medicines in the National Drug Catalogue for Basic Medical Insurance,Work-related Injury Insurance and Maternity Insurance (2022) and domestic guidelines and consensus were searched to form a bubble chart. ResultA total of 15 studies were included. The evaluation of the methodological quality of each study showed that the risk of bias stemmed from the lack of blinding and allocation concealment,and low sample size. The comprehensive analysis of clinical studies showed that Dengzhan Shengmai capsules combined with rosuvastatin and amlodipine besylate,Yindan Xinnaotong capsules combined with simvastatin and levamlodipine tablets,Xiaoshuan Tongluo capsules combined with nifedipine controlled release tablets and pravastatin sodium tablets,Xinshubao capsules combined with atorvastatin calcium tablets and irbesartan,Wenyading capsules combined with enalapril,and Jiangzhining tablets combined with conventional Western medicines were all superior to conventional Western medicines used in the control group in improving systolic blood pressure (SBP),diastolic blood pressure (DBP),cholesterol (TC),triglyceride (TG),low density lipoprotein cholesterol (LDL-C),and high density lipoprotein cholesterol (HDL-C). There was no significant difference in the incidence of adverse reactions between the two groups. The GRADE evaluation of the main outcome indicators showed that the evidence quality of SBP and incidence of adverse reactions was graded as B,that of DBP as C,and that of total TC,TG,LDL-C,and HDL-C as D. The evaluation of Chinese patent medicines covered by medical insurance and recommended by guidelines and consensus showed that Yindan Xinnaotong soft capsules,Dengzhan Shengmai capsules and Xiaoshuan Tongluo capsules belonged to class B drugs of medical insurance,and were recommended for 7,6 and 3 times in the guidelines and consensus,respectively. ConclusionCompared with simple medicine treatment,Chinese patent medicine combined with conventional Western medicine has more advantages in improving blood pressure and blood lipid,and shows higher safety. Among them,Yindan Xinnaotong soft capsules,Dengzhan Shengmai capsules and Xiaoshuan Tongluo capsules have stronger clinical applicability and economy. All the trials included in this article adhered to the principle of randomization and reported the outcome measures. However,the quality of evidence in related clinical studies was low. In terms of trial design,large-sample,multi-center,blinded randomized controlled trials based on the consolidated standards of reporting trials (CONSORT) statement are still needed for comprehensive trial designs and reporting,to further improve the GRADE quality evaluation and guideline formulation under the guidance of evidence-based medicine,so as to provide higher quality evidence-based research evidence for clinical decision-making.
8.GRADE Clinical Study Evidence Evaluation and Expert Consensus on Antihypertensive Chinese Patent Medicines Combined with Western Medicines for Treatment of Hypertension
Liangyu CUI ; Yukun LI ; Tianyue JING ; Yu WANG ; Cong REN ; Tong YIN ; Zhiwei ZHAO ; Jiaheng WANG ; Chenge SUN ; Dasheng LIU ; Zhizheng XING ; Xuejie HAN ; Liying WANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(10):106-115
ObjectiveTo evaluate the quality of research and evidence related to antihypertensive Chinese patent medicines combined with western medicines for the treatment of hypertension, synthesize and update the evidence, form expert consensus, and provide evidence for clinical decision-making. MethodThe databases of China National Knowledge Infrastructure (CNKI), WanFang Data Knowledge Service Platform (WanFang), Vip Chinese Science and Technology Journal Database (VIP), Chinese Biomedical Literature Service System (Sinomed), National Library of Medicine (PubMed), Cochrane Library, Web of Science, and US Clinical Trials Registry were searched for randomized controlled trials of antihypertensive Chinese medicine combined with western medicine for the treatment of hypertension from database construction to July 31, 2022. The quality of the literature was evaluated using the bias risk assessment tool in Cochrane Handbook 6.3. Evidence synthesis of main outcome indicators was performed using R software. The Grading of Recommendations Assessment, Development, and Evaluation profiler (GRADEprofiler) 3.6 was employed to evaluate the quality of evidence. Expert consensus was formed based on the Delphi method after two rounds of voting. Result64 pieces of literature were included, and the results of literature quality evaluation and risk of bias showed that 70.31% (45/64) of the studies indicated some risks, and 29.69% (19/64) indicated high risks. Compared with conventional western medicines, the combination of Chinese patent medicines with western medicines can significantly lower systolic pressure (SBP) and diastolic pressure (DBP), increase the effective rate of antihypertensive, reduce the incidence of adverse reactions, endothelin-1, and traditional Chinese medicine syndrome scores. Egger's test showed that Songling Xuemaikang capsules reduced SBP and DBP. Tianma Gouteng granules reduced SBP and DBP and increased the effective rate of antihypertensive, and Xinmaitong capsules reduced SBP and increased the effective rate of antihypertensive, without significant publication bias. Songling Xuemaikang capsules increased the effective rate of antihypertensive, and Xinmaitong capsules decreased DBP, with significant publication bias. The results of the GRADE evidence quality evaluation showed that most evidence was at grades B and C. Finally, four strong recommendations and 14 weak recommendations were formed. ConclusionCompared with conventional western medicines for the treatment of hypertension, antihypertensive Chinese patent medicines combined with western medicines have advantages in reducing blood pressure and improving drug use safety, but they are mostly weak recommendations in terms of efficacy, and more high-quality evidence is needed.
9.Clinical Evidence Mapping of Chinese Patent Medicines Combined with Western Medicine in Treatment of Hypertension
Yukun LI ; Liangyu CUI ; Zhiwei ZHAO ; Cong REN ; Tong YIN ; Yu WANG ; Liying WANG ; Xuejie HAN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(10):116-123
ObjectiveTo systematically collect, analyze, and evaluate the randomized controlled trials (RCT) of Chinese patent medicine combined with western medicine in the treatment of hypertension, map the evidence, and provide reference for the future clinical research and formulation of guidelines and policies. MethodThe relevant articles were retrieved from China Biology Medicine disc, China National Knowledge Infrastructure (CNKI), VIP, Wanfang Data, PubMed, Embase, and Cochrane Library with the time interval from inception to December 31, 2022. The RCT of Chinese patent medicines combined with western medicine in the treatment of hypertension were included. The research characteristics and methodological quality were analyzed and evaluated. ResultA total of 330 RCTs of treating hypertension with Chinese patent medicines combined with Western medicine were included in this study, all of which were published in Chinese. These RCTs involved 88 Chinese patent medicines and 37 788 patients, and 46% of RCT had the sample size ≥100 patients. Eighty-seven percent of RCT showed the study period within 3 months. All the interventions in the RCTs were Chinese patent medicine + western medicine vs western medicine. Among the evaluation indicators, blood pressure, response rate, TCM syndrome score, endothelial cell function, and safety were mainly concerned. In terms of methodological quality, most articles did not mention the generation of random sequences, allocation concealment, or blinding method. The blinding evaluation of outcomes showed low risks of bias, and there was insufficient information to judge whether there was selective bias or other bias. ConclusionThere were many Chinese patent medicines used in combination with western medicine in the treatment of hypertension, and they were mainly taken orally. The existing RCT had problems such as small sample size, unclear clinical value positioning, imperfect design failing to reflect the value of Chinese patent medicines, unreasonable measurement indicators, and non-standard measurement methods. Future research should solve the above problems, improve the research quality, value, and authenticity, and enhance the reliability and extension of evidence.
10.Application value of prognostic nutritional index in postoperative complications of da Vinci robotic McKeown surgery for esophageal cancer
Qiuhao LIANG ; Minjie MA ; Ruijiang LIN ; Chenhan WANG ; Zhiwei HAN ; Biao HAN
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2024;31(03):376-384
Objective To explore the application value of prognostic nutritional index (PNI) in the postoperative complications of McKeown surgery for da Vinci robotic esophageal cancer. Methods The clinical data of the patients who underwent da Vinci robotic McKeown surgery for esophageal cancer in the Department of Thoracic Surgery of the First Hospital of Lanzhou University from January 2019 to June 2022 were retrospectively collected. According to the receiver operating characteristic (ROC) curve, the optimal cut-off value of PNI for predicting postoperative complications was explored. The patients were divided into a high PNI group and a low PNI group according to the cut-off value, and the differences in basic characteristics, surgery-related indexes and postoperative complications between the two groups were analyzed. According to the occurrence of postoperative complications, the patients were divided into a non-complication group and a complication group. Univariate and multivariate analyses were used to explore the influence of relevant indicators on the occurrence of postoperative complications in da Vinci robotic McKeown surgery for esophageal cancer. Results Finally 120 patients were collected, including 95 males and 25 females, with an average age of 62.82 years. The preoperative hemoglobin content, preoperative blood lymphocyte count, preoperative serum albumin and preoperative blood total cholesterol in the high PNI group were higher than those in the low PNI group (P<0.05). There were statistical differences between the two groups in the incidences of postoperative overall complications, pulmonary infection, pleural effusion and poor incision healing (P<0.05). The relevant indicators that may cause postoperative complications were included in univariate analysis, and the results showed that age, operation time, intraoperative blood loss, preoperative blood lymphocyte count, preoperative hemoglobin content, preoperative blood mononuclear cell count, preoperative blood monocyte count, serum albumin level and PNI were possible influencing factors of postoperative complications after da Vinci robotic McKeown surgery for esophageal cancer. Incorporating these influencing factors into multivariate analysis, the results showed that age, PNI, operation time and intraoperative blood loss were independent influencing factors of postoperative complications. Conclusion PNI has certain predictive value in the postoperative complications of da Vinci robotic McKeown surgery for esophageal cancer. PNI is an independent factor affecting postoperative complications. Improving the level of PNI in esophageal cancer patient before surgery may help reduce the occurrence of postoperative complications.

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