1.Treatment of Diabetic Retinopathy with Blood Stasis, Collateral Obstruction, and Qi and Yin Deficiency Syndrome with Tongluo Mingmu Capsules: A Randomized, Double-blind, and Multi-center Phase Ⅲ Clinical Trial
Junxia REN ; Yongzheng WANG ; Xiaofei LIU ; Li SUN ; Libo YANG ; Lie WU ; Fengmei LIAN ; Qiping WEI ; Lijuan WEI ; Jingsheng YU ; Jianke HAN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(7):170-178
ObjectiveTo evaluate the clinical efficacy and safety of Tongluo Mingmu capsules in the treatment of diabetic retinopathy with blood stasis, collateral obstruction, and Qi and Yin deficiency syndrome. MethodA randomized, double-blind, positive-control, and multi-center clinical trial design method was used. 416 patients with diabetic retinopathy with blood stasis, collateral obstruction, and Qi and Yin deficiency syndrome in four test centers were included (the ratio of the treatment group to the control group was 3∶1). On the basis of standardized hypoglycemic treatment, the treatment group was given both four Tongluo Mingmu capsules and two Calcium Dobesilate capsule agents three times a day, while the control group were given both two Calcium Dobesilate capsules and four Tongluo Mingmu capsule agents three times a day. The course of treatment was 12 weeks. The curative effect of Tongluo Mingmu capsules was evaluated by comparing the comprehensive curative effect of diabetic retinopathy, traditional Chinese medicine(TCM) syndrome score, corrected visual acuity, fundus changes, fundus fluorescence angiography, and other curative effect indexes before and after treatment in the two groups. At the same time, general examination, laboratory examination, and adverse events were performed to evaluate the safety of the drug. ResultThe baseline demographic data and disease characteristics of the treatment group and the control group were balanced and comparable, with the difference not statistically significant. After 12 weeks of treatment, the total effective rate of the comprehensive curative effect of diabetic retinopathy in the treatment group (61.0%, 189/310) was better than that in the control group (44.1%, 45/102), and the difference was statistically significant (χ2=8.880, P<0.01). The total effective rate of TCM syndromes in the treatment group (88.4%, 259/293) was better than that in the control group (69.9%, 65/93), and the difference was statistically significant (χ2=17.927, P<0.01). The disappearance rate of dry eyes (χ2=8.305), dull complexion (χ2=4.053), lassitude (χ2=10.267), shortness of breath (χ2=8.494), and dry stool (χ2=8.657) in the treatment group was higher than that in the control group, and the difference between the groups was statistically significant (P<0.05, P<0.01). In terms of improving corrected visual acuity (χ2=8.382), fundus changes (χ2=6.026) , the treatment group was significantly better than the control group (P<0.05). During the trial, the incidence of adverse events in the treatment group and the control group was 1.3% and 2.9%, respectively. There was no significant difference between the two groups. In addition, there were no serious adverse events and adverse events leading to withdrawal in both groups. ConclusionTongluo Mingmu capsules can improve the comprehensive curative effect of diabetic retinopathy and enhance the efficacy of TCM syndromes, visual acuity, fundus changes, and fundus fluorescein angiography, with great safety. Therefore, it can provide a new alternative therapeutic drug for patients with diabetic retinopathy.
2.PTEN Mutation Related Unilateral Multicentric, Synchronous and Metachronous Bilateral Breast Cancer: Three Case Reports
Ru YAO ; Xu YANG ; Yang QU ; Jie LIAN ; Jiahui ZHANG ; Xin HUANG ; Chang CHEN ; Xinyu REN ; Bo PAN ; Yidong ZHOU ; Qiang SUN
Medical Journal of Peking Union Medical College Hospital 2024;15(4):916-920
Phosphatase and tensin-homolog deleted on chromosome 10 (PTEN) is an important cancer suppressor gene. Its pathogenic mutation leads to PTEN hamartoma tumor syndrome (PHTS), a rare syndrome also known as Cowden syndrome, which is relevant to early-onset hereditary breast cancer (BC). In this paper, we report three patients with unilateral multicentric BC and synchronous and metachronous bilateral BC who harbored PTEN gene mutations, and summarize the clinical manifestations, pathological characteristics, diagnosis, treatment and follow-up outcomes to provide reference for management of PTEN gene mutation-related BC among the Cowden syndrome population.
3.Metrological analysis of highly cited literature in core journals of Chinese pharmacy from 2019 to 2023
Li YANG ; Lian REN ; Longti LI
China Pharmacist 2024;27(4):663-673
Objective Through analysis of the characteristics of highly cited literature in Chinese core journals in the field of pharmacy,to clarify the distribution characteristics of highly cited papers in the field of pharmacy in the past five years,and capture the research hotspots in the field of pharmacy in China.Methods The core journals in the field of Chinese pharmacy published in the 2023 edition of China Science and Technology Journal Citation Report(Core Edition)were used as the journal sources to search the literature of the core journals in the field of Chinese pharmacy published in CNKI database from 2019 to 2023,and the literature with high citation frequency were identified by diachronic method.With the help of Microsoft Excel and CiteSpace 6.1.R6 softwares,the paper volume,authors,istitutions,funds and keywords were analyzed.Results 43 core journals in the field of Chinese pharmacy were identified,and a total of 479 highly cited literature were published in the past five years,distributed in 40 journals,among which The Chinese Journal of Clinical Pharmacology had the highest number of publications,China Journal Pharmacy had the highest total citation frequency,and Northwest Pharmaceutical Journal had the highest citation frequency of each article.The authors of highly cited literature mainly cooperated in small scale.The issuing institutions were mainly universities and their affiliated hospitals,including China Pharmaceutical University,Peking Union Medical College of Chinese Academy of Medical Sciences and Shandong University of Traditional Chinese Medicine.There was a total of 339 highly cited literature with funded projects(70.77%).The most frequently papers literature in each year were the reviews,with the fund support rate of 100%,and the projects were mainly the national funds.The keywords with high frequency were"pharmacological action""chemical composition""mechanism of action"and"research progress".Conclusion There is a positive correlation between literature quality and journal quality,and journals with high quality can attract more high-quality manuscripts.Reviews have more citation advantages.In the past five years,the research hotspots in the field of Chinese pharmacy are"pharmacological action""chemical composition""mechanism of action",etc.,In addition,"safety"and"quality control"are also the focus of attention in recent years.
4.Melatonin enhances the efficacy of anti-PD-L1 by improving hypoxia in residual tumors after insufficient radiofrequency ablation
Ren YANQIAO ; Zhu LICHENG ; Guo YUSHENG ; Ma JINQIANG ; Yang LIAN ; Zheng CHUANSHENG ; Dong XIANGJUN
Journal of Pharmaceutical Analysis 2024;14(8):1176-1188
The hypoxic microenvironment and inflammatory state of residual tumors caused by insufficient radio-frequency ablation(iRFA)are major reasons for rapid tumor progression and pose challenges for immu-notherapy.We retrospectively analyzed the clinical data of patients with hepatocellular carcinoma(HCC)treated with RFA and observed that iRFA was associated with poor survival outcomes and progression-free survival.Using an orthotopic HCC mouse model and a colorectal liver metastasis model,we observed that treatment with melatonin after iRFA reduced tumor growth and metastasis and achieved the best out-comes when combined with anti-programmed death-ligand 1(anti-PD-L1)therapy.In mechanism,melatonin inhibited the expression of epithelial-mesenchymal transitions,hypoxia-inducible factor(HIF)-1 α,and PD-L1 in tumor cells after iRFA.Flow cytometry revealed that melatonin reduced the proportion of myeloid-derived suppressor cells and increased the proportion of CD8+T cells.Transcriptomic analysis revealed an upregulation of immune-activated function-related genes in residual tumors.These findings demonstrated that melatonin can reverse hypoxia and iRFA-induced inflammation,thereby overcoming the immunosuppressive tumor microenvironment(TME)and enhancing the efficacy of immunotherapy.
5.Investigation on the impact of centralized volume-based procurement of dental implant consumables on corruption risk prevention and control in public hospitals
Linling LIAN ; Lingfei REN ; Fei TENG ; Guoli YANG
Chinese Journal of Hospital Administration 2024;40(5):334-338
Objective:To analyze the impact of the implementation of the policy of centralized volume-based procurement of dental implant consumables on the prevention and control of corruption risk in public hospitals, and provide reference for improving the construction of corruption risk prevention and control in public hospitals.Methods:Develop a survey questionnaire for three entities: the Discipline Inspection Commission of public hospitals, dental implant doctors in public hospitals, and dental implant consumables distribution enterprises. The questionnaire content for the Discipline Inspection Commission of public hospitals mainly included the impact of the implementation of the policy of centralized volume-based procurement of dental implant consumables on the prevention and control of hospital integrity risks, as well as the development of supporting policies in hospitals; The questionnaire content for dental implant doctors mainly included their understanding of the centralized volume-based procurement policy, their communication with distribution companies, and their awareness of integrity; The questionnaire content for dental implant consumables distribution enterprises mainly included the situation of the distribution enterprises entering the centralized volume-based procurement catalog for implants, and the subsequent adjustment of business strategies.Using convenience sampling method, a questionnaire survey was conducted from February to June 2023 on the Discipline Inspection Commission of public hospitals in Zhejiang Province, dental implant doctors in public hospitals nationwide, and distribution enterprises of dental implant consumables in Zhejiang Province. Descriptive analysis was conducted on the questionnaire data.Results:Effectively collected 16 questionnaires filled out by the Discipline Inspection Commission leaders of public hospitals in Zhejiang Province. Among them, the Discipline Inspection Commission leaders of 11 public hospitals believed that the implementation of the policy of centralized volume-based procurement of dental implant consumables could reduce the existing corruption risks of public hospitals, 1 believed that it would create new corruption risks, and 4 believed that both aspects of the impact existed; 12 leaders believed that the policy′s strengthening of corruption risk prevention and control was mainly reflected in squeezing implant prices, reducing selection and procurement risks, and reducing red envelopes and kickbacks. 270 questionnaires from dental implant doctors in public hospitals were effectively collected. Regarding the implementation of the centralized volume-based procurement policy, 187 people believed that it would inhibit the development of the dental implant industry, 148 people expected their personal salaries to decrease, 78 people would participate more in lectures and training organized by enterprises, and 39 people would recommend implant systems outside the centralized volume-based procurement catalog to patients; 140 people were unable to accurately grasp all the contents of the " Nine Guidelines on Integrity for Staff of Medical Institution" ; Only 202 people believed that compliance contact with distribution companies could only be based on listening to their introduction to the implant system. 23 questionnaires were effectively collected from dental implant consumables distribution companies. Among them, 22 companies would reduce their expenses in maintaining relationships with clinical doctors after the implementation of the centralized procurement policy, and 14 companies would reduce their sales position expenses. All distribution companies believed that the phenomenon of medical institution staff receiving red envelopes and kickbacks would decrease or disappear after the implementation of the centralized volume-based procurement policy.Conclusions:The implementation of the policy of centralized volume-based procurement of dental implant consumables is beneficial for reducing the existing corruption risks in public hospitals, but if regulatory oversight is inadequate, new corruption risks will arise in the early stages of policy implementation. Public hospitals should improve the supporting system for centralized volume-based procurement of dental implant consumables, standardize the procurement process of dental implant consumables outside the centralized volume-based procurement catalog, strengthen supervision and inspection of centralized procurement, and further strengthen corruption risk prevention and control by implementing anti-corruption education.
6.A Phase Ⅲ Clinical Observation of Yishen Yangxin Anshen Tablets in Treatment of Insomnia with Deficiency of Heart Blood and Insufficiency of Kidney Essence
Wei WANG ; Junxia REN ; Yongzheng WANG ; Jianke HAN ; Limin YANG ; Weidong WANG ; Fengmei LIAN ; Changshan AI ; Xiaoli YIN ; Baoliang WANG ; Yi MENG ; Shuguang YUAN ; Desheng ZHOU ; Xuedong GAO
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(4):110-116
ObjectiveTo confirm the clinical efficacy and safety of Yishen Yangxin Anshen tablets in the treatment of insomnia (heart-blood deficiency and kidney-essence insufficiency syndrome). MethodA randomized block, double-blind, placebo-controlled, multi-center clinical trial design method was adopted, and a total of 480 patients with insomnia due to deficiency of heart blood and insufficiency of kidney essence (treatment group-control group 3∶1) from seven hospitals (Guang'anmen Hospital, China Academy of Chinese Medical Sciences, The First Clinical Hospital, Jilin Province Academy of Traditional Chinese Medicine(TCM), The Second Affiliated Hospital of Liaoning University of TCM, The First Affiliated Hospital of Henan University of Chinese Medicine, Henan Province Hospital of TCM, Hebei General Hospital, The First Hospital of Hunan University of Chinese Medicine) were enrolled. The treatment group was given Yishen Yangxin Anshen tablets and the control group received placebo tablets (4 tablets/time, 3 times/day, 4 weeks of administration, 4 weeks of follow-up after drug withdrawal). The sleep dysfunction rating scale (SDRS) score, pittsburgh sleep quality index (PSQI) score, TCM, polysomnography (PSG) indicators from four hospital (Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Henan Province Hospital of TCM, Hebei General Hospital, The First Hospital of Hunan University of Chinese Medicine), and other efficacy indicators were compared between the two groups before and after treatment. Through general physical examination, laboratory examination, and observation of adverse events, the safety of the drugs was evaluated. ResultThe baseline indexes of the two groups showed no significant difference and thus the two groups were comparable. After treatment, the total score of SDRS in the treatment group was lower than that in the control group (P<0.01). After drug withdrawal for 4 weeks, the total score of SDRS demonstrated no significant change in the treatment group as compared with that at the end of treatment, indicating that the rebound change of curative effect was not obvious. After treatment, the total score of PSQI in the treatment group decreased as compared with that in the control group (P<0.01), and the change of total score of PSQI in the treatment group was statistically significant (P<0.05) after drug withdrawal for 4 weeks but small, indicating that the rebound change of curative effect was not obvious. After treatment, the total effective rate about the TCM symptoms in the treatment group was higher than that in the control group (χ2=137.521,P<0.01). After treatment, the disappearance rates of single indexes in the treatment group, such as difficulty in falling asleep, easily waking up after sleeping, early awakening, short sleep time, dreamfulness, palpitation, forgetfulness, dizziness, mental fatigue, and weakness of waist and knee, increased compared with those in the control group (P<0.01). After treatment, the treatment group demonstrated fewer awaking times (AT), longer total sleep time (TST), lower ATA/TST ratio, and higher sleep efficiency (%) than the control group (P<0.05). No abnormal value or aggravation related to drugs was observed in either group. The incidence of adverse events in the treatment group and the control group was 5.57% and 8.40% respectively. No serious adverse events or adverse events leading to withdrawal happened in either group. ConclusionYishen Yangxin Anshen tablets is effective and safe for patients with insomnia of deficiency of heart-blood and insufficiency of kidney-essence.
7.Research on the current status of pharmacy scientific and technological core journals in China
Yang LI ; Qiao-Ni ZHONG ; Jie XIONG ; Lian REN ; Xian-Tao ZENG
China Pharmacist 2023;26(12):535-540
Objective To analyze the characteristics and current situation of pharmaceutical journals sponsored by institutions in China,so as to improve the utilization,quality and dissemination effect of pharmaceutical journals,provide a basis for scientific evaluation and journal quality management,and provide a reference for readers to choose core journals,focus on reading and submitting.Methods The data of pharmaceutical journals sponsored by domestic institutions in China were collected in the"China Science and Technology Journals Citation Report(Core Edition)"compiled by the Institute of Scientific and Technical Information of China in 2023.This paper analyzes the characteristics and current situation of pharmaceutical journals sponsored by institutions in China,and investigates the number,citation frequency,impact factor,and regional distribution of pharmaceutical journals included in the core catalog of science and technology.Results A total of 48 core journals of pharmaceutical science and technology sponsored by domestic institutions were retrieved,and the publication cycle was mainly monthly(52.08% ).The Chinese Pharmaceutical Association is the institution with the largest number of core journals(15);In terms of quantity,15 core pharmaceutical journals in Beijing ranked first,ranking 2nd to 4th:Shanghai(6),Hubei(4),Jiangsu(4);The average total citation frequency in Chongqing was 3123 times,and the average total citation frequency was the highest.Conclusion The distribution of core pharmaceutical journals shows obvious advantages in economically developed regions such as Beijing and Shanghai.The Chinese Pharmaceutical Association,China Pharmaceutical University and the Chinese Academy of Medical Sciences and other institutions have sponsored many pharmaceutical academic journals,with a relatively complete journal system and rich experience in running journals.
8.Stereotactic body radiation therapy for patients with lung and liver oligometastases from colorectal cancer: a phase Ⅱ trial.
Jun Qin LEI ; Wen Yang LIU ; Yuan TANG ; Yu TANG ; Ning LI ; Hua REN ; Chi YIHEBALI ; Yong Kun SUN ; Wen ZHANG ; Xin Yu BI ; Jian Jun ZHAO ; Hui FANG ; Ning Ning LU ; Ai Ping ZHOU ; Shu Lian WANG ; Yong Wen SONG ; Yue Ping LIU ; Bo CHEN ; Shu Nan QI ; Jian Qiang CAI ; Ye Xiong LI ; Jing JIN
Chinese Journal of Oncology 2022;44(3):282-290
Objective: To explore the safety and effectiveness of stereotactic body radiation therapy (SBRT) for oligometastases from colorectal cancer (CRC). Methods: This is a prospective, single-arm phase Ⅱ trial. Patients who had histologically proven CRC, 1 to 5 detectable liver or lung metastatic lesions with maximum diameter of any metastases ≤5 cm were eligible. SBRT was delivered to all lesions. The primary endpoint was 3-year local control (LC). The secondary endpoints were treatment-related acute toxicities of grade 3 and above, 1-year and 3-year overall survival (OS) and progression free survival (PFS). Survival analysis was performed using the Kaplan-Meier method and Log rank test. Results: Petients from 2016 to 2019 who were treated in Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College. Forty-eight patients with 60 lesions were enrolled, including 37 liver lesions and 23 lung lesions. Forty-six patients had 1 or 2 lesions, with median diameter of 1.3 cm, the median biologically effective dose (BED(10)) was 100.0 Gy. The median follow-up was 19.5 months for all lesions. Twenty-five lesions developed local failure, the median local progression free survival was 15 months. The 1-year LC, OS and PFS was 70.2% (95% CI, 63.7%~76.7%), 89.0% (95% CI, 84.3%~93.7%) and 40.4% (95%CI, 33.0%~47.8%). The univariate analysis revealed that planning target volume (PTV) and total dose were independent prognostic factors of LC (P<0.05). For liver and lung lesions, the 1-year LC, OS and PFS was 58.7% and 89.4% (P=0.015), 89.3% and 86.5% (P=0.732), 30.5% and 65.6% (P=0.024), respectively. No patients developed acute toxicity of grade 3 and above. Conclusion: SBRT is safe and effective treatment method for oligometastases from CRC under precise respiratory motion management and robust quality assurance.
Colorectal Neoplasms
;
Humans
;
Liver/pathology*
;
Lung/pathology*
;
Prospective Studies
;
Radiosurgery/methods*
9.A comparative study of artificial intelligence nasal polyp classification based on whole-slide imaging and JESREC diagnostic criteria.
Qing Wu WU ; Wei Feng KONG ; Lian Xiong YUAN ; Yong REN ; Ya Na ZHANG ; Hui Yi DENG ; Xin LUO ; Jian Ning CHEN ; Xue Kun HUANG ; Qin Tai YANG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2022;57(2):136-141
Objective: To explore the types and clinical characteristics of chronic rhinosinusitis with nasal polyps (CRSwNP) based on artificial intelligence and whole-slide imaging (WSI), and to explore the consistency of the diagnostic criteria of the Japanese epidemiological survey of refractory eosinophilic chronic rhinosinusitis (JESREC) in Chinese CRSwNP patients. Methods: The data of 136 patients with CRSwNP (101 males and 35 females, aging 14 to 70 years) who underwent endoscopic sinus surgery from 2018 to 2019 in the Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital of Sun Yat-sen University were analysed retrospectively. The preoperative clinical characteristics of patients were collected, such as visual analogue scale (VAS) of nasal symptoms, peripheral blood inflammatory cell count, total immunoglobulin E (IgE), Lund-Kennedy score and Lund-Mackay score. The proportion of inflammatory cells such as eosinophils, lymphocytes, plasma cells and neutrophils were calculated on the WSI of each patient through artificial intelligence chronic rhinosinusitis evaluation platform 2.0 (AICEP 2.0), and the specific type of nasal polyps was then obtained as eosinophilic CRSwNP (eCRSwNP) or non-eosinophilic CRSwNP (non-eCRSwNP). In addition, the JESREC diagnostic criteria was used to classify the nasal polyps, and the classification results were compared with the current gold standard for nasal polyps diagnosis (pathological diagnosis based on WSI). The accuracy, sensitivity and specificity of the diagnostic criteria of JESREC were evaluated. The data were expressed in M (Q1, Q3) and statistically analyzed by SPSS 17.0. Results: There was no significant difference between eCRSwNP and non-eCRSwNP in age distribution, gender, time of onset, total VAS score, Lund-Kennedy score or Lund-Mackay score. However, there was a significant difference in the ratio of nasal polyp inflammatory cells (eosinophils 40.5% (22.8%, 54.7%) vs 2.5% (1.0%, 5.3%), neutrophils 0.3% (0.1%, 0.7%) vs 1.3% (0.5%, 3.6%), lymphocytes 49.9% (39.3%, 65.9%) vs 82.0% (72.8%, 87.5%), plasma cells 5.1% (3.6%, 10.5%) vs 13.0% (7.4%, 16.3%), χ2 value was 9.91, 4.66, 8.28, 5.06, respectively, all P<0.05). In addition, eCRSwNP had a significantly higher level of proportion of allergic symptoms (nasal itching and sneezing), asthma, peripheral blood eosinophil and total IgE (all P<0.05). The overall accuracy, sensitivity and specificity of the JESREC diagnostic criteria was 74.3%, 81.3% and 64.3%, respectively. Conclusions: The eCRSwNP based on artificial intelligence and WSI has significant high level of allergic symptoms, asthma, peripheral blood eosinophils and total IgE, and the percentages of inflammatory cells in nasal polyps are different from that of non-eCRSwNP. The JESREC diagnostic criteria has good consistency in our research.
Artificial Intelligence
;
Chronic Disease
;
Eosinophils/metabolism*
;
Female
;
Humans
;
Male
;
Nasal Polyps/pathology*
;
Retrospective Studies
;
Rhinitis/pathology*
;
Sinusitis/pathology*
10.Risk factors of bronchopulmonary dysplasia in very preterm infants: a national multicenter study
Ruihua BA ; Lixia TANG ; Wei SHEN ; Lian WANG ; Zhi ZHENG ; Xinzhu LIN ; Fan WU ; Qianxin TIAN ; Qiliang CUI ; Yuan YUAN ; Ling REN ; Jian MAO ; Yumei WANG ; Bizhen SHI ; Ling LIU ; Jinghui ZHANG ; Yanmei CHANG ; Xiaomei TONG ; Yan ZHU ; Rong ZHANG ; Xiuzhen YE ; Jingjing ZOU ; Huaiyu LI ; Baoyin ZHAO ; Yinping QIU ; Shuhua LIU ; Li MA ; Ying XU ; Rui CHENG ; Wenli ZHOU ; Hui WU ; Zhiyong LIU ; Dongmei CHEN ; Jinzhi GAO ; Jing LIU ; Ling CHEN ; Cong LI ; Chunyan YANG ; Ping XU ; Yayu ZHANG ; Sile HU ; Hua MEI ; Zuming YANG ; Zongtai FENG ; Sannan WANG ; Eryan MENG ; Lihong SHANG ; Falin XU ; Shaoping OU ; Rong JU
Chinese Pediatric Emergency Medicine 2022;29(6):433-439
Objective:To analyze the risk factors of bronchopulmonary dysplasia(BPD)in very preterm infants(VPI), and to provide scientific basis for the prevention and treatment of BPD in VPI.Methods:A prospective multicenter study was designed to collect the clinical data of VPI in department of neonatology of 28 hospitals in 7 regions from September 2019 to December 2020.According to the continuous oxygen dependence at 28 days after birth, VPI were divided into non BPD group and BPD group, and the risk factors of BPD in VPI were analyzed.Results:A total of 2 514 cases of VPI including 1 364 cases without BPD and 1 150 cases with BPD were enrolled.The incidence of BPD was 45.7%.The smaller the gestational age and weight, the higher the incidence of BPD( P<0.001). Compared with non BPD group, the average birth age, weight and cesarean section rate in BPD group were lower, and the incidence of male infants, small for gestational age and 5-minute apgar score≤7 were higher( P<0.01). In BPD group, the incidences of neonatal respiratory distress syndrome(NRDS), hemodynamically significant patent ductus arteriosus, retinopathy of prematurity, feeding intolerance, extrauterine growth restriction, grade Ⅲ~Ⅳ intracranial hemorrhage, anemia, early-onset and late-onset sepsis, nosocomial infection, parenteral nutrition-associated cholestasis were higher( P<0.05), the use of pulmonary surfactant(PS), postnatal hormone exposure, anemia and blood transfusion were also higher, and the time of invasive and non-invasive mechanical ventilation, oxygen use and total hospital stay were longer( P<0.001). The time of starting enteral nutrition, cumulative fasting days, days of reaching total enteral nutrition, days of continuous parenteral nutrition, days of reaching 110 kcal/(kg·d) total calorie, days of reaching 110 kcal/(kg·d) oral calorie were longer and the breastfeeding rate was lower in BPD group than those in non BPD group( P<0.001). The cumulative doses of amino acid and fat emulsion during the first week of hospitalization were higher in BPD group( P<0.001). Multivariate Logistic regression analysis showed that NRDS, invasive mechanical ventilation, age of reaching total enteral nutrition, anemia and blood transfusion were the independent risk factors for BPD in VPI, and older gestational age was the protective factor for BPD. Conclusion:Strengthening perinatal management, avoiding premature delivery and severe NRDS, shortening the time of invasive mechanical ventilation, paying attention to enteral nutrition management, reaching whole intestinal feeding as soon as possible, and strictly mastering the indications of blood transfusion are very important to reduce the incidence of BPD in VPI.

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