1.Expert Consensus on Clinical Application of Pingxuan Capsules
Yuer HU ; Yanming XIE ; Yaming LIN ; Yuanqi ZHAO ; Yihuai ZOU ; Mingquan LI ; Xiaoming SHEN ; Wei PENG ; Changkuan FU ; Yuanyuan LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):201-210
As a patented characteristic medicine of Yi ethnic minority, Pingxuan capsules have the effects of nourishing the liver and kidney, pacifying the liver, and subduing Yang. With the main indications of dizziness, headache, palpitations, tinnitus, insomnia, dreaminess, waist and knee soreness caused by liver-kidney deficiency and liver Yang upward disturbance, Pingxuan capsules are widely used in the treatment of posterior circulation ischemic vertigo, vestibular migraine, benign paroxysmal positional vertigo. However, the current knowledge is limited regarding the efficacy, syndrome differentiation, and safety of this medicine. On the basis of summarizing the experience of clinicians and the existing evidence, this study invites clinical experts of traditional Chinese and Western medicine, pharmaceutical experts, and methodological experts from relevant fields across China to conduct evidence-based evaluation of Pingxuan capsules. The evaluation follows the Specifications for the Development of Clinical Expert Consensus on Chinese Patent Medicines issued by the Standardization Office of the China Association of Chinese Medicine, and reaches 5 recommendations and 16 consensus suggestions. The consensus clarifies the clinical applications, efficacy, dose, course of treatment, combination of medicines, precautions, and contraindications of Pingxuan capsules in the treatment of vertigo and explains the safety of clinical application. This consensus is applicable to clinicians (traditional Chinese medicine, Western medicine, and integrated traditional Chinese and Western medicine) and pharmacists in tertiary hospitals, secondary hospitals, and community-level medical and health institutions across China, providing a reference for the rational use of Pingxuan capsules in the treatment of vertigo. It is hoped that the promotion of this consensus can facilitate the rational use of drugs in clinical practice, reduce the risk of drug use, and give full play to the advantages of Pingxuan capsules in the treatment of vertigo diseases. This consensus has been reviewed and published by the China Association of Chinese Medicine, with the number GS/CACM330-2023.
2.Construction and empirical study of selection system for drug directory of county-level medical community based on multi-criteria decision analysis
Yinan GUO ; Xiuheng YU ; Yuqing XIE ; Shixin XIANG ; Huan LIN ; Youqi LONG ; Yu ZHAO
China Pharmacy 2025;36(8):914-919
OBJECTIVE To explore the construction of selection system for drug directory of the county-level medical community based on multi-criteria decision analysis, and provide decision-making basis for the selection of drug directory of medical community. METHODS Taking county-level medical community in Chongqing as an example,Delphi method and analytic hierarchy process were employed to construct the selection system for drug directory of the county-level medical community. Selected drugs were quantitatively scored based on the constructed index system, and the drug directory was selected according to the drug’s comprehensive score. The implementation effect of the directory was then evaluated through questionnaire surveys one year after the implementation of the directory. RESULTS The expert authority coefficients of the two rounds of consultation were> 0.8, with Kendall’s W values of 0.213 and 0.196, respectively (P<0.001). Finally, the selection system for drug directory of the medical community was determined to include five evaluation dimensions: safety, effectiveness, economy, accessibility, and innovation, along with eight evaluation indicators. In the drug directory selected according to the above method, the proportions of centrally procured drugs, medical insurance drugs, and essential drugs had all increased compared to before the selection; the comprehensive scores of chemical drugs ranged from 50.25 to 96.31 scores, and the proportion of drugs scoring between 70 and 100 scores had increased from 78.06% before selection to 85.82%. Among them, antiparasitic drugs had the highest comprehensive scores, while drugs for the digestive tract and metabolism were the most numerous. The evaluation scores of each indicator and the comprehensive scores of drugs in the drug directory after the selection process increased significantly than before selection (P< 0.05). CONCLUSIONS The selection system for drug directory of the county-level medical community constructed in this study is scientific, objective and operable. This process facilitates the promotion of standardized and unified management of drugs in the medical community.
3.Sequential Administration of Dihuang Baoyuan Granules and Fuling Yunhua Granules for Teating Type 2 Diabetes Mellitus in Mice
Huiyi XIE ; Junran CHEN ; Boning HUANG ; Xinrong YANG ; Fangle LIU ; Yuying ZHENG ; Haiyu ZHAO ; Tianbao HU ; Baoqin LIN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):155-163
ObjectiveTo investigate the therapeutic effect of sequential administration of Dihuang Baoyuan granules (DHBY, the prescription for consolidating body resistance) and Fuling Yunhua granules (FLYH, the prescription for treating symptoms) on spontaneous type 2 diabetes mellitus (T2DM) in mice. MethodsAccording to the fasting blood glucose (FBG) level, 12-week-old db/db mice were randomized into six groups: model, DHBY (18.02 g·kg-1), FLYH (14.80 g·kg-1), sequential administration 1 (SEQ-1, DHBY 18.02 g·kg-1+FLYH 14.80 g·kg-1), sequential administration 2 (SEQ-2, FLYH 14.80 g·kg-1+DHBY 18.02 g·kg-1), and dapagliflozin (Dapa, 1.3 mg·kg-1). The m/m mice in the same litter were selected as the normal group. The mice were administrated with corresponding drugs by gavage for 8 consecutive weeks. During the 8 weeks of drug administration and 2 weeks after withdrawal, the retinal thickness, FBG, hemoglobin A1c (HbA1c), and insulin were determined, and histopathological changes of the pancreas, liver, kidney, and retina were observed by hematoxylin-eosin (HE) staining. ResultsCompared with the model group, SEQ-1 for 4 weeks lowered the FBG level (P<0.05), raised the insulin level, decreased the triglyceride (TG) level (P<0.05), increased the number of optic ganglion cells and diminished vacuolar degeneration of pancreatic islet and liver. SEQ-2 lowered FBG and HbA1c levels (P<0.05), rose the insulin level, increased the retinal thickness and the number of optic ganglion cells (P<0.05), and alleviated vacuolar degeneration of pancreatic islet and liver. Two weeks after drug withdrawal, Dapa tended to increase FBG and HbA1c compared with those at the time of drug withdrawal. However, the levels of FBG and HbA1c in the SEQ-2 group remained decreasing (P<0.05). ConclusionSEQ-1 and SEQ-2 can lower the blood glucose level and ameliorate diabetic retinopathy, and SEQ-2 outperformed DHBY and FLYH in lowering the blood glucose level. Moreover, SEQ-2 can maintain the blood glucose-lowering effect after drug withdrawal.
4.Sequential Administration of Dihuang Baoyuan Granules and Fuling Yunhua Granules for Teating Type 2 Diabetes Mellitus in Mice
Huiyi XIE ; Junran CHEN ; Boning HUANG ; Xinrong YANG ; Fangle LIU ; Yuying ZHENG ; Haiyu ZHAO ; Tianbao HU ; Baoqin LIN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):155-163
ObjectiveTo investigate the therapeutic effect of sequential administration of Dihuang Baoyuan granules (DHBY, the prescription for consolidating body resistance) and Fuling Yunhua granules (FLYH, the prescription for treating symptoms) on spontaneous type 2 diabetes mellitus (T2DM) in mice. MethodsAccording to the fasting blood glucose (FBG) level, 12-week-old db/db mice were randomized into six groups: model, DHBY (18.02 g·kg-1), FLYH (14.80 g·kg-1), sequential administration 1 (SEQ-1, DHBY 18.02 g·kg-1+FLYH 14.80 g·kg-1), sequential administration 2 (SEQ-2, FLYH 14.80 g·kg-1+DHBY 18.02 g·kg-1), and dapagliflozin (Dapa, 1.3 mg·kg-1). The m/m mice in the same litter were selected as the normal group. The mice were administrated with corresponding drugs by gavage for 8 consecutive weeks. During the 8 weeks of drug administration and 2 weeks after withdrawal, the retinal thickness, FBG, hemoglobin A1c (HbA1c), and insulin were determined, and histopathological changes of the pancreas, liver, kidney, and retina were observed by hematoxylin-eosin (HE) staining. ResultsCompared with the model group, SEQ-1 for 4 weeks lowered the FBG level (P<0.05), raised the insulin level, decreased the triglyceride (TG) level (P<0.05), increased the number of optic ganglion cells and diminished vacuolar degeneration of pancreatic islet and liver. SEQ-2 lowered FBG and HbA1c levels (P<0.05), rose the insulin level, increased the retinal thickness and the number of optic ganglion cells (P<0.05), and alleviated vacuolar degeneration of pancreatic islet and liver. Two weeks after drug withdrawal, Dapa tended to increase FBG and HbA1c compared with those at the time of drug withdrawal. However, the levels of FBG and HbA1c in the SEQ-2 group remained decreasing (P<0.05). ConclusionSEQ-1 and SEQ-2 can lower the blood glucose level and ameliorate diabetic retinopathy, and SEQ-2 outperformed DHBY and FLYH in lowering the blood glucose level. Moreover, SEQ-2 can maintain the blood glucose-lowering effect after drug withdrawal.
5.Experience and learning curve of single-line suspension suction rod-assisted hybrid cavity-building thyroid surgery via the oral vestibular approach
Hongyu CHEN ; Yiyi ZHOU ; Shuai LIN ; Bin XIONG ; Shaoli XIE ; Fang CHEN ; Yuqing KANG ; Qi LYU ; Xiaobo ZHAO
Chinese Journal of Endocrine Surgery 2024;18(1):26-30
Objective:To explore the experience and learning curve of single-line suspension suction rod-assisted hybrid cavity-building thyroid surgery via the oral vestibular approach.Methods:Clinical data of 138 patients undergoing single-line suspension suction rod-assisted hybrid cavity-building thyroid surgery via oral vestibular approach from Sep. 2019 to Dec. 2021 in the Department of Thyroid and Breast Surgery of Affiliated Hospital of North Sichuan Medical College were retrospectively analyzed. The cumulative sum (CUSUM) method and best-fit curve analysis were used to compare the differences in each index such as operative time, intraoperative bleeding, number of lymph nodes cleared in the central region and postoperative related complications at various stages of the learning curve.Results:All 138 patients underwent single-line suspension rod-assisted hybrid cavity-building thyroid surgery via the oral vestibular approach, and one patient was converted to open surgery due to large intraoperative bleeding in the mass. There were 14 males and 124 females, mean age (36.07±8.49) years (20-55 years), thyroid tumor size (7.74±6.49) mm (2.4-50mm), 5 cases underwent Subtotal thyroidectomy, 129 cases underwent Unilateral lobectomy + lymph node dissection in the middle region, and 4 cases total thyroidectomy + central zone lymph node dissection. The number of surgical cases corresponding to the apex of the CUSUM learning curve was 45, and the learning curve was divided into two stages: the learning improvement stage (1-45 cases) and the mastery stage (46-138 cases). The operative time, intraoperative bleeding, postoperative hospital stay, and chin numbness were all lower in the proficiency period than in the learning and training period ( P<0.05), and the number of lymph nodes cleared in the central region was larger than that in the learning and improvement stage ( P<0.05), while the differences in other indexes between the two stages were not statistically significant ( P>0.05) . Conclusion:The single-line suspension suction rod-assisted hybrid cavity-building thyroid surgery via the oral vestibular approach has clinical application value and is worth promoting, and the number of surgical cases to be accumulated to master this technique is 45.
6.Involvement of miR-144-3p in Cbs+/-mouse hepatocyte autophagy induced by high-methionine diet
Siqi SHENG ; Lin XIE ; Xiangyu ZHAO ; Yideng JIANG ; Kai WU ; Jiantuan XIONG ; Anning YANG ; Yinju HAO ; Yun JIAO
Chinese Journal of Tissue Engineering Research 2024;28(8):1289-1294
BACKGROUND:High-methionine diet can cause liver injury in Cbs+/-mice,and hyperhomocystinemia is related to the occurrence and progression of various liver-related diseases,such as hepatic steatosis,autoimmune hepatitis,and alcoholic fatty liver disease.MicroRNAs(miRNAs)are involved in various cellular processes including cell survival,differentiation and autophagy,which are of great significance. OBJECTIVE:To investigate the critical role of miR-144-3p on Cbs+/-mouse hepatocyte autophagy induced by high methionine die. METHODS:(1)Ten male cystathione-β-synthase normal(Cbs+/+)mice and another 10 male mice with single gene knockout(Cbs+/-)of similar body mass,4 weeks of age,were fed a high-methionine diet and executed after 12 weeks to take liver tissue.(2)Human hepatocytes(HL-7702)were cultured in vitro and divided into control[0 μmol/L homocysteine(Hcy)],Hcy(100 μmol/L Hcy),mimic-NC(transfected with mimic-NC),mimic-NC + Hcy(mimic-NC transfecton+100 μmol/L Hcy),miR-144-3p mimic(transfected with miR-144-3p mimic),and miR-144-3p mimic + Hcy(miR-144-3p mimic transfection+100 μ mol/L Hcy),inhibitor-NC(transfected with inhibitor-NC),inhibitor-NC + Hcy(inhibitor-NC transfection + 100 μmol/L Hcy),miR-144-3p inhibitor(transfected with miR-144-3p inhibitor),and miR-144-3p inhibitor + Hcy(miR-144-3p inhibitor transfection + 100 μmol/L Hcy).Quantitative real-time PCR was used to detect the expression of miR-144-3p in liver tissue and hepatocytes.After transfection of miR-144-3p mimic or inhibitor,quantitative real-time PCR and western blot were used to detect the transfection efficiency of miR-144-3p and its effect on the expression of autophagy-related proteins LC3B and p62.The levels of alanine transferase and aspartate aminotransferase in hepatocyte supernatants were determined by enzyme linked immunosorbent assay.The correlation between the expression of miR-144-3 in hepatocyte and the levels of alanine transferase and aspartate aminotransferase in hepatocyte supernatants were analyzed by Pearson correlation analysis. RESULTS AND CONCLUSION:Compared with the Cbs+/+ group and control group,the expression of miR-144-3p in the liver tissue of the Cbs+/-group and in hepatocytes of the Hcy group was decreased(P<0.01).The expression of LC3B-Ⅱ/Ⅰ was decreased in hepatocyte after transfection of miR-144-3p mimic,while the protein expression of p62 was increased(P<0.01).The opposite results were obtained after transfection of miR-144-3p inhibitor(P<0.01).Compared with the mimic-NC group,the levels of alanine transferase and aspartate aminotransferase were decreased in the miR-144-3p mimic group(P<0.01),while the opposite results were obtained in the inhibitor-NC group(P<0.01).The expression of miR-144-3p in hepatocytes was negatively correlated with the levels of alanine transferase(P<0.01,r=-0.887 6)and aspartate aminotransferase(P<0.01,r=-0.829 9)in the supernatant of hepatocytes.To conclude,Hcy promotes hepatocyte autophagy by inhibiting the expression of miR-144-3p,which subsequently aggravates liver injury.
7.Whole-process individualized pharmaceutical care for a case of melioidosis sepsis
Min WANG ; Ye LIN ; Jie ZHAO ; Xiangxiang FU ; Hua WU ; Qiongshi WU ; Tian XIE
China Pharmacy 2024;35(1):101-106
OBJECTIVE To provide reference for the adjustment of antibiotic treatment regimens, identification of adverse reactions, and individualized pharmaceutical care for melioidosis sepsis (MS). METHODS Clinical pharmacists participated in the intensive and eradicating therapeutic processes for an MS patient by using blood concentration and gene detection. Based on the literature, antibiotic treatment regimens of MS were adjusted by determining the blood concentrations of β-lactam and trimethoprim/ sulfamethoxazole (TMP/SMZ) and calculating PK/PD parameters. The causes of adverse drug reactions were analyzed and addressed by detecting drug-related gene polymorphisms through high-throughput sequencing. RESULTS Clinical pharmacists used blood concentration and genetic testing methods to propose adjustments to imipenem-cilastatin sodium dosage and analyze the causes of various adverse drug reactions. PK/PD targets were calculated by measuring the blood concentrations of β-lactam and TMP/SMZ. Clinical pharmacists explained to clinical doctors the compliance status of patients with melioidosis in sepsis and non- sepsis stages through reviewing guidelines and literature; the results of blood concentration and genetic test were used to analyze the correlation of neurotoxicity of MS patients with B14) IMP cmin, and it was found that nephrotoxicity was not related to the cmax of TMP/SMZ, but to the patient’s water intake. After whole-process antibiotic treatment, the patient’s condition improved and was discharged, and the adverse reactions were effectively treated. CONCLUSIONS Clinical pharmacists use blood concentration and genetic tests to assist clinicians in formulating MS treatment regimens, and provide whole-course pharmaceutical care for a MS patient. This method has improved the safety and effectiveness of clinical drug therapy.
8.Clinical observation of venetoclax combined with homoharringtonine and cytarabine in the treatment of acute myeloid leukemia
Ling ZHOU ; Qiuyuan PENG ; Pan ZHAO ; Jin WEI ; Xiaojing LIN ; Xingli ZOU ; Wenfeng LUO ; Jing WANG ; Kunying XIE ; Xianglong LI ; Yang LIU ; Xun NI
China Pharmacy 2024;35(14):1743-1747
OBJECTIVE To observe the short-term efficacy and safety of venetoclax combined with homoharringtonine and cytarabine in the treatment of acute myeloid leukemia (AML). METHODS The data of 40 newly diagnosed AML patients admitted to our hospital from October 2022 to November 2023 were retrospectively collected and divided into observation group and control group according to treatment plan, with 20 cases in each group. The patients in the control group were given Daunorubicin hydrochloride for injection+Cytarabine for injection, and the patients in the observation group were given Venetoclax tablets+ Homoharringtonine injection+Cytarabine for injection. The patients in both groups were given relevant medicine, with 28 days as one cycle. The short-term efficacy, negative rate of minimal residual disease (MRD), duration of granulocyte deficiency, duration of platelet (PLT) <20×109 L-1, transfusion volume of suspended red blood cells and platelet, and the occurrence of adverse drug reactions were evaluated in both groups after 1 cycle of induction chemotherapy. RESULTS The complete remission or complete remission with incomplete hematologic recovery (CR/CRi) rate in the observation group was significantly higher than control group (P<0.05), and the negative rate of MRD in the observation group was also significantly higher than control group (P<0.05). However, in low-, medium- and high-risk patients, there was no statistical significance in CR/CRi rates between the two groups (P>0.05). There were no significant differences in the duration of agranulocytosis, the duration of PLT <20×109 L-1, the amount of suspended red blood cell transfusion, the amount of platelet transfusion, the incidence of hematologic toxicity and the incidence of non-hematologic toxicity between 2 groups (P>0.05). CONCLUSIONS Venetoclax combined with homoharringtonine and cytarabine show good short-term efficacy and safety in the treatment of AML.
9.Investigating Mechanism of Fritillariae Cirrhosae Bulbus Against Pulmonary Fibrosis Based on Spatial Metabolomics
Shanbo QIN ; Peng TAN ; Lu HAO ; Junjie XIE ; Junzhi LIN ; Lei ZHANG ; Junning ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(13):150-159
ObjectiveBased on spatial metabolomics technology combined with pharmacological indexes, to analyze the mechanism of Fritillariae Cirrhosae Bulbus(FCB) powder in improving bleomycin-induced pulmonary fibrosis in rats. MethodSixty SD rats were randomly divided into five groups, including the blank group, the model group, and high, medium, low dosage groups of FCB. Except for the blank group, rats in all other groups were injected with bleomycin by tracheal injection to establish a pulmonary fibrosis model. Postoperatively, the high, medium and low dosage groups of FCB were administered aqueous solutions of FCB powder at doses of 0.36, 0.18, 0.09 g·kg-1, respectively, continuously for 28 d. The blank and model groups were given an equal volume of distilled water by gavage. After the last administration, lung tissues and blood samples were collected, the pathological conditions of rat lung tissues were comprehensively evaluated by hematoxylin-eosin(HE) and Masson staining, and aerodynamic assisted desorption electrospray ionization mass spectrometry imaging(AFADESI-MSI) was used for MSI of rat lung tissues from different experimental groups. Spatial metabolomics analysis was conducted on the fibrotic areas of lung tissues in the model group and the high dosage group of FCB based on HE staining images. Differential metabolites between groups were screened by orthogonal partial least squares-discriminant analysis(OPLS-DA), with variable importance in the projection(VIP) values>1, t-test P<0.05, and fold change analysis. Metabolic pathway analysis of the identified differential metabolites was performed using Kyoto Encyclopedia of Genes and Genomes(KEGG). Protein expression levels of nuclear transcription factor-κB p65(NF-κB p65) and heme oxygenase-1(HO-1) in rat lung tissues were detected by Western blot. Biochemical assessments of superoxide dismutase(SOD), malondialdehyde(MDA) and glutathione(GSH) levels in rat lung tissues were conducted. Serum levels of interleukin(IL)-1β, IL-6, nuclear factor erythroid 2 related factor 2(Nrf2), and tumor necrosis factor-α(TNF-α) were measured by enzyme linked immunosorbent assay(ELISA), and some of the screened signaling pathways with strong correlation were verified. ResultThe results of MSI experiment showed that after 28 d of the administration of FCB powder to rats with pulmonary fibrosis, the content of L-arginine in the fibrotic regions of lung tissues was significantly different from that of rats in the model group, and the content of phosphatidylcholine was lower than that in the fibrotic region of lung tissues of rats in the model group. Western blot results confirmed that, in comparison to the model group, oral administration of FCB powder for 28 d could inhibit the elevated expression of NF-κB p65 protein in the lung tissues of rats with pulmonary fibrosis. Furthermore, high dose of FCB powder was able to significantly inhibit the expression of HO-1 after oral administration (P<0.05). The cytokine detection results indicated that the concentrations of IL-1β, IL-6 and TNF-α in the serum of rats from the high, medium, low dosage groups of FCB were reduced by comparing with the model group, and the high dose of Chuanbeimu powder administered by gavage could significantly inhibit the trend of decreased SOD, GSH, Nrf2 contents and increased MDA content induced by bleomycin. ConclusionOral administration of FCB powder has the potential to partially ameliorate bleomycin-induced pulmonary fibrosis in rats, and its mechanism may be related to the regulation of pathways associated with inflammation(NF-κB p65) and oxidative stress(Nrf2/HO-1).
10.Reassessment of practice of Chinese surgeons since introduction of the watch and wait strategy after neoadjuvant therapy for rectal cancer
Minghe ZHAO ; Tingting SUN ; Lin WANG ; Yonglin HUANG ; Xingyu XIE ; Yun LU ; Guohua ZHAO ; Aiwen WU
Chinese Journal of Gastrointestinal Surgery 2024;27(4):383-394
Objective:To investigate perspectives and changes in treatment selection by Chinese surgeons since introduction of the watch-and-wait approach after neoadjuvant therapy for rectal cancer.Methods:A cross-sectional survey was conducted using a questionnaire distributed through the "Wenjuanxing" online survey platform. The survey focused on the recognition and practices of Chinese surgeons regarding the strategy of watch-and-wait after neoadjuvant therapy for rectal cancer and was disseminated within the China Watch-and-Wait Database (CWWD) WeChat group. This group targets surgeons of deputy chief physician level and above in surgical, radiotherapy, or internal medicine departments of nationally accredited tumor-specialist or comprehensive hospitals (at provincial or municipal levels) who are involved in colorectal cancer diagnosis and treatment. From 13 to 16 December 2023, 321 questionnaires were sent with questionnaire links in the CWWD WeChat group. The questionnaires comprised 32 questions encompassing: (1) basic physician characteristics (including surgical volume); (2) assessment methods and criteria for clinical complete response (cCR); (3) patients eligible for watch-and-wait; (4) neoadjuvant therapies and other measures for achieving cCR; (5) willingness to implement watch-and-wait and factors influencing that willingness; (6) risks and monitoring of watch-and-wait; (7) subsequent treatment and follow-up post watch-and-wait; (8) suggestions for development of the CWWD. Descriptive statistics were employed for data analysis, with intergroup comparisons conducted using the χ 2 or Fisher's exact probability tests. Results:The response rate was 31.5%, comprising 101 responses from the 321 individuals in the WeChat group. Respondents comprised 101 physicians from 70 centers across 23 provinces, municipalities, and autonomous regions nationwide, 85.1% (86/101) of whom represented provincial tertiary hospitals. Among the respondents, 87.1% (88/101) had implemented the watch-and-wait strategy. The approval rate (65.6%, 21/32) and proportion of patients often informed (68.8%, 22/32) were both significantly higher for doctors in oncology hospitals than for those in general hospitals (27.7%, 18/65; 32.4%, 22/68) (χ 2=12.83, P<0.001; χ 2=11.70, P=0.001, respectively). The most used methods for diagnosing cCR were digital rectal examination (90.1%, 91/101), colonoscopy (91.1%, 92/101), and rectal T2-weighted magnetic resonance imaging (86.1%, 87/101). Criteria used to identify cCR comprised absence of a palpable mass on digital rectal examination (87.1%, 88/101), flat white scars or new capillaries on colonoscopy (77.2%, 78/101), absence of evident tumor signals on rectal T2-weighted sequences or T2WI low signals or signals equivalent to the intestinal wall (83.2%, 84/101), and absence of tumor hyperintensity on diffusion-weighted imaging with no corresponding hypointensity on apparent diffusion coefficient maps (66.3%, 67/101). As for selection of neoadjuvant regimen and assessment of cCR, 57.4% (58/101) of physicians preferred a long course of radiotherapy with or without induction and/or consolidation capecitabine + oxaliplatin, whereas 25.7% (26/101) preferred immunotherapy in combination with chemotherapy and concurrent radiotherapy. Most (96.0%, 97/101) physicians believed that the primary lesion should be assessed ≤12 weeks after completion of radiotherapy. Patients were frequently informed about the possibility of achieving cCR after neoadjuvant therapy and the strategy of watch-and-wait by 43.6% (44/101) of the responding physicians and 38.6% (39/101) preferred watch-and-wait for patients who achieved cCR or near cCR after neoadjuvant therapy for rectal cancer. Capability for multiple follow-up evaluations (70.3%, 71/101) was a crucial factor influencing physicians' choice of watch-and-wait after cCR. The proportion who patients who did not achieve cCR and underwent surgical treatment was lower in provincial tertiary hospitals (74.2%, 23/31) than in provincial general hospitals (94.5%, 52/55) and municipal hospitals (12/15); these differences are statistically significant (χ 2=7.43, P=0.020). The difference between local recurrence and local regrowth was understood by 88.1% (89/101) of respondents and 87.2% (88/101) agreed with monitoring every 3 months for 5 years. An increase in local excision or puncture rates to reduce organ resections in patients with pCR was proposed by 64.4% (65/101) of respondents. Conclusion:Compared with the results of a previous survey, Chinese surgeons' awareness of the watch-and-wait concept has improved significantly. Oncologists in oncology hospitals are more aware of the concept of watch-and-wait.

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