1.Professor LIU Jinmin's Clinical Experience in Treating Epilepsy Based on the Method of Closing Yangming and Regaining Vital Activity
Lin ZOU ; Tianye SUN ; Mingyuan YAN ; Mi ZHAGN ; Shuai ZHAO ; Kaiyue WANG ; Lili LI ;
Journal of Traditional Chinese Medicine 2025;66(4):344-348
		                        		
		                        			
		                        			To summarize the clinical experience of Professor LIU Jinmin in treatment for epilepsy. It is believed that main pathogenesis of epilepsy is yangming failure to close and vital activity loss control, so a therapeutic approach focused on restoring the closure of yangming and regaining vital activity was proposed for the treatment of epilepsy. For excess syndrome, the treatment focuses on draining excess and descending qi, promoting purgation and restoring spirit. When yangming dryness-heat predominates, the approach involves unblock the bowels and regulating the spirit, descending qi and reducing fire, with modified Chengqi Decoction (承气汤) as prescription; when yangming phlegm-fire predominates, the treatment focuses on clearing heat and resolving phlegm, calming mind and suppressing fright, with modified Qingxin Wendan Decoction (清心温胆汤) as prescription; when yangming blood stasis predominates, the approach involves breaking up blood stasis and promoting purgation, eliminating stasis and awakening the mind, with Taoren Chengqi Decoction (桃核承气汤) as prescription. For deficiency syndrome, the treatment emphasizes tonifying deficiency and raising qi, strengthening the stomach and nourishing the spirit. When center qi deficiency and sinking of clear qi of the nutrients from food, the approach involves replenishing and uplifting qi while nourishing vital activity, with modified Liujunzi Decoction (六君子汤) as prescription; when yin deficiency and fluid consumption, the treatment focuses on nourishing stomach and tonifying yin, promoting fluid production and calming the spirit, with modified Maimendong Decoction (麦门冬汤) combined with Yiwei Decoction (益胃汤) as prescriptions. In clinical situations of deficiency-excess complex, it is essential to distinguish the primary condition from the secondary, applying both supplementing and draining methods flexibly to achieve optimal treatment. 
		                        		
		                        		
		                        		
		                        	
2.Analysis on Quality Standard of Sennae Folium(Cassia angustifolia) Dispensing Granules Based on Standard Decoctions
Jinxin LI ; Xue DONG ; Shuai DUAN ; Guiyun CAO ; Jinghua ZHANG ; Yongfu LUAN ; Yongqiang LIN ; Xiaodi DONG ; Zhaoqing MENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(9):192-200
		                        		
		                        			
		                        			ObjectiveTo establish the quality standards for Sennae Folium(Cassia angustifolia) dispensing granules based on standard decoctions. MethodsHigh performance liquid chromatography(HPLC) specific chromatograms were established for 15 batches of Sennae Folium(C. angustifolia) standard decoctions and 10 of Sennae Folium(C. angustifolia) dispensing granules from different manufacturers, and the similarity evaluation, hierarchical cluster analysis(HCA) and principal component analysis(PCA) were performed. Linear calibration with two reference substances(LCTRS) and quantitative analysis of multi-components by single-marker(QAMS) were established for the common peaks in the specific chromatograms to determine the contents of main components in the decoction pieces, standard decoctions and dispensing granules, and to calculate their transfer rates from decoction pieces to standard decoctions and dispensing granules. ResultsThe similarities of specific chromatograms of 15 batches of Sennae Folium(C. angustifolia) standard decoctions and 10 batches of Sennae Folium(C. angustifolia) dispensing granules were all greater than 0.95, and a total of 8 characteristic peaks were calibrated, and five of them were identified, including kaempferol-3,7-O-diglucoside, apigenin-6,8-di-C-glucoside, quercetin-3-O-gentianoside, sennoside B and sennoside A. HCA and PCA results showed that there were certain differences in the composition of different batches of standard decoctions, but no clustering was observed in the production area. As the standard decoctions, the extract rate of 15 batches of samples was 26.54%-45.38%, the contents of kaempferol-3,7-O-diglucoside, apigenin-6,8-di-C-glucoside, quercetin-3-O-gentianoside, sennoside B and sennoside A were 12.16-19.26, 2.57-4.94, 3.27-5.11, 6.75-11.39, 4.69-7.79 mg·g-1, and their transfer rates from decoction pieces to standard decoctions were 45.41%-79.02%, 29.12%-55.07%, 40.52%-67.90%, 24.72%-49.12%, 27.54%-49.34%, respectively. The extract rates of Sennae Folium(C. angustifolia) dispensing granules(C8-C10) were 38.10%-39.50%, the transfer rates of the above five components from decoction pieces to dispensing granules were 72.85%-73.58%, 53.43%-53.94%, 40.19%-40.74%, 24.62%-25.00%, 28.65%-29.11%, respectively, which were generally consistent with the transfer rates from decoction pieces to standard decoctions. ConclusionCompared with the relative retention time method, LCTRS has higher prediction accuracy and is more suitable for chromatographic columns. The established quality control standard of Sennae Folium(C. angustifolia) dispensing granules based on standard decoction is reasonable and reliable, and all indicators of samples from different manufacturers are within the range specified based on the standard decoction, which can provide reference for the quality control and process research of this dispensing granules. 
		                        		
		                        		
		                        		
		                        	
3.Quality Evaluation of Chuanxiong Rhizoma Dispensing Granules Based on HPLC Specific Chromatogram and Two Reference Substances for Determination of Multiple Components
Jinxin LI ; Xue DONG ; Shuai DUAN ; Guiyun CAO ; Jinghua ZHANG ; Yongfu LUAN ; Yongqiang LIN ; Xiaodi DONG ; Zhaoqing MENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):246-253
		                        		
		                        			
		                        			ObjectiveTo establish the specific chromatogram of Chuanxiong Rhizoma dispensing granules(CRdg), and to evaluate its quality by chemometrics and two reference substances for determination of multiple components(TRSDMC). MethodsHigh performance liquid chromatography(HPLC) specific chromatograms were established using 13 batches of CRdg from 7 manufacturers, and preliminary quality evaluation was performed by similarity evaluation and chemometrics analysis. Eight characteristic peaks in the specific chromatogram of CRdg were measured on 22 different types of C18 columns, and the actual retention times were recorded. Taking chlorogenic acid(peak 1) and senkyunolide A(peak 8) as double standard compounds, the retention times of the eight characteristic peaks were predicted by linear calibration using two reference substances(LCTRS), and the method was validated on three other columns of different brands. Taking chlorogenic acid as reference peak, the relative correction factor method(RCFM) was used to quantify cryptochlorogenic acid, caffeic acid, ferulic acid, senkyunolide I and senkyunolide A, and the results were compared with the external standard method(ESM). ResultsThe similarities of specific chromatograms of 13 batches of CRdg were all >0.90, and a total of 8 characteristic peaks were calibrated, and six of them were identified, including chlorogenic acid(peak 1), cryptochlorogenic acid(peak 2), caffeic acid(peak 3), ferulic acid(peak 5), senkyunolide I(peak 6) and senkyunolide A(peak 8). Through chemometric analysis, it was found that ferulic acid, chlorogenic acid, senkyunolide I and cryptochlorogenic acid were the main components causing quality difference in CRdg, and the accuracy of LCTRS in predicting the retention time of 8 characteristic peaks was superior to that of the relative retention time method(RRT). Further comparison of the results obtained from RCFM and ESM showed that there was no statistically significant difference between the two methods. ConclusionA quality evaluation method for CRdg based on HPLC specific chromatogram and TRSDMC is established, its qualitative accuracy is better than that of RRT, the quantitative accuracy is similar to that of ESM, and 4 quality-differentiated components among different manufacturers are found. This method is stable and reliable, and has reference value for the quality evaluation of other dispensing granules. 
		                        		
		                        		
		                        		
		                        	
4.Quality Evaluation of Chuanxiong Rhizoma Dispensing Granules Based on HPLC Specific Chromatogram and Two Reference Substances for Determination of Multiple Components
Jinxin LI ; Xue DONG ; Shuai DUAN ; Guiyun CAO ; Jinghua ZHANG ; Yongfu LUAN ; Yongqiang LIN ; Xiaodi DONG ; Zhaoqing MENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):246-253
		                        		
		                        			
		                        			ObjectiveTo establish the specific chromatogram of Chuanxiong Rhizoma dispensing granules(CRdg), and to evaluate its quality by chemometrics and two reference substances for determination of multiple components(TRSDMC). MethodsHigh performance liquid chromatography(HPLC) specific chromatograms were established using 13 batches of CRdg from 7 manufacturers, and preliminary quality evaluation was performed by similarity evaluation and chemometrics analysis. Eight characteristic peaks in the specific chromatogram of CRdg were measured on 22 different types of C18 columns, and the actual retention times were recorded. Taking chlorogenic acid(peak 1) and senkyunolide A(peak 8) as double standard compounds, the retention times of the eight characteristic peaks were predicted by linear calibration using two reference substances(LCTRS), and the method was validated on three other columns of different brands. Taking chlorogenic acid as reference peak, the relative correction factor method(RCFM) was used to quantify cryptochlorogenic acid, caffeic acid, ferulic acid, senkyunolide I and senkyunolide A, and the results were compared with the external standard method(ESM). ResultsThe similarities of specific chromatograms of 13 batches of CRdg were all >0.90, and a total of 8 characteristic peaks were calibrated, and six of them were identified, including chlorogenic acid(peak 1), cryptochlorogenic acid(peak 2), caffeic acid(peak 3), ferulic acid(peak 5), senkyunolide I(peak 6) and senkyunolide A(peak 8). Through chemometric analysis, it was found that ferulic acid, chlorogenic acid, senkyunolide I and cryptochlorogenic acid were the main components causing quality difference in CRdg, and the accuracy of LCTRS in predicting the retention time of 8 characteristic peaks was superior to that of the relative retention time method(RRT). Further comparison of the results obtained from RCFM and ESM showed that there was no statistically significant difference between the two methods. ConclusionA quality evaluation method for CRdg based on HPLC specific chromatogram and TRSDMC is established, its qualitative accuracy is better than that of RRT, the quantitative accuracy is similar to that of ESM, and 4 quality-differentiated components among different manufacturers are found. This method is stable and reliable, and has reference value for the quality evaluation of other dispensing granules. 
		                        		
		                        		
		                        		
		                        	
5.Effects of gene silencing Cyclooxygenase-2 cooperated with hyperbaric oxygen on neurological repair and apoptosis, autophagy in cerebral hemorrhage rats
Qiang PAN ; Lin ZHU ; Yong GAO ; Jun ZHU ; Shuai ZHANG ; Qiang LI ; Xingtao DIAO ; Chunyu SONG
Chinese Journal of Emergency Medicine 2024;33(1):39-46
		                        		
		                        			
		                        			Objective:To investigate the effects of gene silencing inducible cyclooxygenase-2 (COX-2) combined with hyperbaric oxygen (HBO) on neuronal cell edema, apoptosis, autophagy and neural functional recovery in rats with intracerebral hemorrhage.Methods:SPF-grade adult male SD rats ( n=96) were used to establish a cerebral hemorrhage model through stereotactic injection of thrombin VII into the caudate nucleus. They were randomized (random number) into 4 groups ( n=24/group): control group, hyperbaric oxygen (HBO) group, COX-2 RNAi group and combined group (COX-2 RNAi+HBO). The siRNA plasmid targeting silencing COX-2 gene expression was constructed. After group treatment, the four rats were randomly selected from each group for testing in each category. Postoperative day 1, 7, and 14 were assessed using the modified neurological severity score (mNSS) for evaluating neurofunctional deficits. On the 7th day, the water content of the brain tissue was measured using the dry/wet weight method. The blood-brain barrier permeability was assessed using the Evans method. Annexin V and TUNEL assays were employed to assess the apoptotic rate of neural cells. The mRNA expression level of COX-2 in brain tissue was determined using the RT-PCR method. The protein expression levels of Beclin-1, COX-2, aquaporin 4 (AQP-4), B cell lymphoma/lewkmia-2 (Bcl-2), caspase-3, hypoxia-inducible factor-1α (HIF-1α) and matrix metalloprotein-2/9 (MMP-2/9) were detected by Western blot (WB). SPSS software was used for data analysis. One-way ANOVA was used for inter group comparisons and LSD- t test was used for further pairwise comparison. Results:The SD rat intracerebral hemorrhage model and plasmid construction were successfully achieved. The mNSS scores were significantly decreased in COX-2 RNAi, HBO and combined groups compared with control group on the 7th day and 14th day (all P<0.01), especially in combined group ( P<0.01). The contents of Evans blue and the water content of brain tissue of all treatment groups were significantly lower than those in control group (all P<0.05), especially in combined group ( P<0.01). The apoptotic rate of neural cells decreased in all treatment groups compared with the control group (all P<0.05), and the combined group decreased the most ( P<0.01). The mRNA expression levels of COX-2 were significantly decreased in all treatment groups compared with the control group (all P<0.01), and combined group silenced COX-2 expression most obviously ( P<0.05). The results of WB showed that the protein expression levels of Beclin-1, COX-2, AQP-4, Caspase-3, HIF-1α, MMP-2/9 were significantly lower than control group (all P<0.05), while the expression of Bcl-2 was increased in all treatment groups (all P<0.01). Among them, the combined group exhibited the most pronounced trend ( P<0.01). Conclusions:Gene silencing of COX-2 in combination with hyperbaric oxygen therapy can effectively restore neurological function in rats with cerebral hemorrhage. The mechanism may be associated with reduced blood-brain barrier permeability, alleviated brain edema, and inhibition of neuronal apoptosis and autophagy.
		                        		
		                        		
		                        		
		                        	
6.Association of Polymorphisms in the 3'UTR of Genes in the ERK1/2 Signaling Pathway with Non-small Cell Lung Cancer
Chao HONG ; Xudong XIANG ; Yingfu LI ; Yang CAO ; Xueya CHEN ; Shuai LI ; Anhao XING ; Mu LIN ; Qianli MA
Journal of Kunming Medical University 2024;45(3):7-17
		                        		
		                        			
		                        			Objective To investigate the association between four single nucleotide polymorphisms(SNP)(rs9340 in MAPK1,rs14804 in NRAS,rs712 and rs7973450 in KRAS)in the 3'UTR of ERK1/2 signaling pathway-related genes and non-small cell lung cancer(NSCLC).Methods A total of 478 NSCLC patients and 480 healthy controls were enrolled in this study.Four SNPs were genotyped by using TaqMan assays.The association between the four SNPs and NSCLC was analyzed.Results The distribution frequency difference of the allele of rs9340 was statistically significant between the control group and the non-small cell squamous cell carcinoma(SCC)group(P = 0.009),suggesting that the G allele of rs9340 may be a protective factor for non-small cell lung squamous cell carcinoma(OR = 0.67,95%CI:0.50~0.91).In addition,in the<50 years age group,the distribution frequency difference of the allele of rs9340 was statistically significant between the control group and the NSCLC group(P = 5.07×10-4),indicating that the G allele of rs9340 may be a protective factor for NSCLC(OR = 0.46,95%CI:0.29~0.72).Conclusion The SNP rs9340 in MAPK1 may be associated with the risk of NSCLC.
		                        		
		                        		
		                        		
		                        	
7.PDCA cycle helps the continuous improvement of laboratory diagnostics teaching
Shuai YUAN ; Wanying LIN ; Qian ZHOU ; Xin LI ; Bo LI ; Lei ZHENG
Chinese Journal of Medical Education Research 2024;23(3):387-390
		                        		
		                        			
		                        			In the context of "New Era" and "New Medicine", the teaching team of laboratory diagnostics proposed a new teaching method of PDCA (Plan, Do, Check, Action) cycle to innovate the instructional design and implementation of laboratory diagnosis on the base of traditional teaching model. Through optimizing the curriculum system, integrating superior resources, taking full advantage of information technology, mobilizing the virtual simulation laboratory, implementing moral education and multiple comprehensive evaluation results, the self-learning enthusiasm, innovation and development ability of students were improved significantly, accompanied with high humanistic care spirit. Moreover, the enthusiasm of participating in scientific research activities and professional competitions was enhanced obviously. Therefore, we believe that the PDCA cycle, with notable successes, deserves high promotion value and wide application.
		                        		
		                        		
		                        		
		                        	
8.Current status of radiological Kashin-Beck disease among school-aged children in Chamdo City, Tibet
Jiaxiang GAO ; Hu LI ; Liyi ZHANG ; Zihao HE ; Ziyi YANG ; Zhichang LI ; Kai WANG ; Yan KE ; Qiang LIU ; Shu ZHANG ; Xiaobo CHENG ; Shuai CHAI ; Zhaoyang MENG ; Lipeng SUN ; Qunwei LI ; Hongqiang GONG ; Jianhao LIN
Chinese Journal of Orthopaedics 2024;44(1):33-40
		                        		
		                        			
		                        			Objective:This study aimed to explore the status of radiological Kashin-Beck disease (KBD) among school-aged children in Chamdo City, Tibet, through a 3-year monitoring survey, providing epidemiological evidence for prevention and control strategies.Methods:The target areas for this study were Luolong, Bianba, and Basu counties in Chamdo City, Tibet Autonomous Region, identified as having the most severe historical cases of KBD. Children aged 7-12 years attending school were enrolled as study subjects. Anteroposterior X-ray films of the right-hand were taken, and radiological diagnoses were made based on the "Diagnosis of Kashin-Beck Disease" criteria (WS/T 207-2010). Two experienced researchers independently reviewed the X-rays, and intra- and inter-group consistency were assessed using weighted Kappa values and percentage agreement. Cross-sectional surveys were conducted in 2017 and 2020 to describe the X-ray detection rates of KBD, and logistic regression analysis was employed to construct a predictive model of risk factors for radiological KBD cases.Results:In 2017, a total of 5,711 children aged 7-12 years in Chamdo City, Tibet, participated in the baseline cross-sectional survey (average age 9.2 years, 48.0% female), with 28 cases of radiological KBD. The age- and gender-standardized prevalence rate was 0.527%. In 2020, 6,771 participants (average age 9.3 years, 49.5% female) underwent a second cross-sectional survey, with 9 cases of radiological KBD and a standardized prevalence rate of 0.134%. Logistic regression analysis indicated that older age [ OR=2.439, 95% CI(1.299, 4.580), P=0.006] and female gender [ OR=8.157, 95% CI(1.016, 65.528), P=0.048] were independent risk factors for radiological KBD cases. Conversely, higher residential altitude, under the premise of Tibet's high altitude, was a protective factor [ OR=0.995, 95% CI(0.990, 0.999), P=0.032). Conclusion:The radiographically positive detection rate of KBD among school-aged children in Chamdo City, Tibet Autonomous Region, is at an extremely low level and showing a declining trend, reaching the historical standard in 2020. Considering the absence of positive signs in affected children, it suggests that local KBD has been effectively eliminated.
		                        		
		                        		
		                        		
		                        	
9.Effect of Jiuxin Pill (救心丸)on Exercise Tolerance and Quality of Life in Patients of Stable Angina Pectoris:A Randomized,Double-Blind,Placebo-Controlled,Multi-Center Clinical Trial
Xianliang WANG ; Mingjun ZHU ; Daimei NI ; Jianguang WU ; Yitao XUE ; Chenglong WANG ; Xiaohua DAI ; Qian LIN ; Jun LI ; Zhiqiang ZHAO ; Shuai WANG ; Yingfei BI ; Tongzuo LIU ; Zhou ZHOU ; Jingyuan MAO
Journal of Traditional Chinese Medicine 2024;65(24):2549-2557
		                        		
		                        			
		                        			ObjectiveTo evaluate the effect and safety of Jiuxin Pill (救心丸) on exercise tolerance and quality of life in patients with stable angina pectoris (SAP). MethodsA randomised, double-blind, placebo-controlled, multicentre study design was used to enroll 170 patients of SAP from nine centres, which were divided into 85 patients each in the trial group and control group with 1∶1 ratio. Both groups maintained the original western medicine treatment plan, and added Jiuxin Pill or placebo respectively, 2 pills (0.05 g) each time twicely for 28 days. The main outcomes were total exercise time (TED) in the exercise treadmill test and Seattle Angina Questionnaire (SAQ) scores including physical limitation (PL), angina stability (AS), angina frequency (AF), treatment satisfaction (TS), and disease perception (DP). The secondary outcomes were exercise treadmill test indicators including heart rate recovery in 1 min (HRR1), metabolic equivalents (METs), maximum magnitude of ST-segment depression, and the Borg rating of perceived exertion scale, the average number of angina attacks per week, withdrawal and reduction rate of nitroglycerin, traditional Chinese medicine syndrome scores, incidence of major adverse cardiovascular events. Safety indicators were evaluated and the occurrence of adverse events during the trial was recorded. Data was collected before treatment, day 28±2 in treatment period, and follow-up at day 56 which is 28±2 days after treatment period finished. ResultsEighty-four and eighty-five patients respectively from trial group and control group were included to the full analysis set (FAS) and safety analysis set (SS). Compared with the group before treatment and with the control group after treatment, the trial group had higher TED, HRR1, and METs, and lower maximum magnitude of ST-segment depression and Borg rating of perceived exertion scores after treatment (P<0.01). Compared with the group before treatment and with the control group after treatment and at follow-up, the total SAQ score and scores of AS, AF, TS and DP of the trial group after treatment and at follow-up elevated, while the average number of angina attacks per week and traditional Chinese medicine syndrome scores reduced (P<0.01). There was no statistically significant difference in the withdrawal and reduction rate of nitroglycerin between groups (P>0.05). Major adverse cardiovascular events occurred in 1 case (1/84, 1.19%) in the trial group and 1 case (1/85, 1.18%) in the control group, and the difference between groups was not statistically significant (P>0.05). A total of 3 cases of adverse events occurred in the trial group (3/84, 3.57%), and a total of 6 cases of adverse events occurred in the control group (6/85, 7.06%), and there was no statistically significant difference in the incidence of adverse events between groups (P>0.05). ConclusionIn the treatment of SAP, Jiuxin Pill combined with conventional western medicine can further enhance exercise tolerance, improve quality of life, and demonstrate great safety. 
		                        		
		                        		
		                        		
		                        	
10.Long-term outcome of patients with rectal cancer who achieve complete or near complete clinical responses after neoadjuvant therapy: a multicenter registry study of data from the Chinese Watch and Wait Database
Yiming ZHAO ; Weihu WANG ; Wei ZHANG ; Lin WANG ; Shuai LI ; Jingwen WANG ; Leen LIAO ; Guanyu YU ; Zhen SUN ; Yanli QU ; Yang GONG ; Yun LU ; Tao WU ; Yunfeng LI ; Quan WANG ; Guohua ZHAO ; Yi XIAO ; Peirong DING ; Zhen ZHANG ; Aiwen WU
Chinese Journal of Gastrointestinal Surgery 2024;27(4):372-382
		                        		
		                        			
		                        			Objective:To report the long-term outcomes of Chinese rectal cancer patients after adopting a Watch and Wait (W&W) strategy following neoadjuvant therapy (NAT).Methods:This multicenter, cross-sectional study was based on real-world data. The study cohort comprised rectal cancer patients who had achieved complete or near complete clinical responses (cCRs, near-cCRs) after NAT and were thereafter managed by a W&W approach, as well as a few patients who had achieved good responses after NAT and had then undergone local excision for confirmation of pathological complete response. All participants had been followed up for ≥2 years. Patients with distant metastases at baseline or who opted for observation while living with the tumor were excluded. Data of eligible patients were retrospectively collected from the Chinese Wait-and-Watch Data Collaboration Group database. These included baseline characteristics, type of NAT, pre-treatment imaging results, evaluation of post-NAT efficacy, salvage measures, and treatment outcomes. We herein report the long-term outcomes of Chinese rectal cancer patients after NAT and W&W and the differences between the cCR and near-cCR groups.Results:Clinical data of 318 rectal cancer patients who had undergone W&W for over 2 years and been followed up were collected from eight medical centers (Peking University Cancer Hospital, Fudan University Shanghai Cancer Center, Sun Yat-sen University Cancer Center, Shanghai Changhai Hospital, Peking Union Medical College Hospital, Liaoning Cancer Hospital, the First Hospital of Jilin University, and Yunnan Cancer Hospital.) The participants comprised 221 men (69.4%) and 107 women (30.6%) of median age 60 (26-86) years. The median distance between tumor and anal verge was 3.4 (0-10.4) cm. Of these patients, 291 and 27 had achieved cCR or near-cCR, respectively, after NAT. The median duration of follow-up was 48.4 (10.2-110.3) months. The 5-year cumulative overall survival rate was 92.4% (95%CI: 86.8%-95.7%), 5-year cumulative disease-specific survival (CSS) rate 96.6% (95%CI: 92.2%-98.5%), 5-year cumulative organ-preserving disease-free survival rate 86.6% (95%CI: 81.0%-90.7%), and 5-year organ preservation rate 85.3% (95%CI: 80.3%-89.1%). The overall 5-year local recurrence and distant metastasis rates were 18.5% (95%CI: 14.9%-20.8%) and 8.2% (95%CI: 5.4%-12.5%), respectively. Most local recurrences (82.1%, 46/56) occurred within 2 years, and 91.0% (51/56) occurred within 3 years, the median time to recurrence being 11.7 (2.5-66.6) months. Most (91.1%, 51/56) local recurrences occurred within the intestinal lumen. Distant metastases developed in 23 patients; 60.9% (14/23) occurred within 2 years and 73.9% (17/23) within 3 years, the median time to distant metastasis being 21.9 (2.6-90.3) months. Common sites included lung (15/23, 65.2%), liver (6/23, 26.1%), and bone (7/23, 30.4%) The metastases involved single organs in 17 patients and multiple organs in six. There were no significant differences in overall, cumulative disease-specific, or organ-preserving disease-free survival or rate of metastases between the two groups (all P>0.05). The 5-year local recurrence rate was higher in the near-cCR than in the cCR group (41.6% vs. 16.4%, P<0.01), with a lower organ preservation rate (69.2% vs. 88.0%, P<0.001). The success rates of salvage after local recurrence and distant metastasis were 82.1% (46/56) and 13.0% (3/23), respectively. Conclusion:Rectal cancer patients who achieve cCR or near-cCR after NAT and undergo W&W have favorable oncological outcomes and a high rate of organ preservation. Local recurrence and distant metastasis during W&W follow certain patterns, with a relatively high salvage rate for local recurrence. Our findings highlight the importance of close follow-up and timely intervention during the W&W process.
		                        		
		                        		
		                        		
		                        	
            
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