1.Genotyping Characteristics of Human Fecal Escherichia coli and Their Association with Multidrug Resistance in Miyun District, Beijing.
Wei Wei ZHANG ; Xiao Lin ZHU ; Le Le DENG ; Ya Jun HAN ; Zhuo Wei LI ; Jin Long WANG ; Yong Liang CHEN ; Ao Lin WANG ; Er Li TIAN ; Bin CHENG ; Lin Hua XU ; Yi Cong CHEN ; Li Li TIAN ; Guang Xue HE
Biomedical and Environmental Sciences 2023;36(5):406-417
OBJECTIVE:
To explore the genotyping characteristics of human fecal Escherichia coli( E. coli) and the relationships between antibiotic resistance genes (ARGs) and multidrug resistance (MDR) of E. coli in Miyun District, Beijing, an area with high incidence of infectious diarrheal cases but no related data.
METHODS:
Over a period of 3 years, 94 E. coli strains were isolated from fecal samples collected from Miyun District Hospital, a surveillance hospital of the National Pathogen Identification Network. The antibiotic susceptibility of the isolates was determined by the broth microdilution method. ARGs, multilocus sequence typing (MLST), and polymorphism trees were analyzed using whole-genome sequencing data (WGS).
RESULTS:
This study revealed that 68.09% of the isolates had MDR, prevalent and distributed in different clades, with a relatively high rate and low pathogenicity. There was no difference in MDR between the diarrheal (49/70) and healthy groups (15/24).
CONCLUSION
We developed a random forest (RF) prediction model of TEM.1 + baeR + mphA + mphB + QnrS1 + AAC.3-IId to identify MDR status, highlighting its potential for early resistance identification. The causes of MDR are likely mobile units transmitting the ARGs. In the future, we will continue to strengthen the monitoring of ARGs and MDR, and increase the number of strains to further verify the accuracy of the MDR markers.
Humans
;
Escherichia coli/genetics*
;
Escherichia coli Infections/epidemiology*
;
Multilocus Sequence Typing
;
Genotype
;
Beijing
;
Drug Resistance, Multiple, Bacterial/genetics*
;
Anti-Bacterial Agents/pharmacology*
;
Diarrhea
;
Microbial Sensitivity Tests
2.Inhibitory Effect of Cinobufotalin on Macrophage Inflammatory Factor Storm and Its Mechanism.
Xi-Xi LIU ; Chen-Cheng LI ; Jing YANG ; Wei-Guang ZHANG ; Re-Ai-La JIANATI ; Xiao-Li ZHANG ; Zu-Qiong XU ; Xing-Bin DAI ; Fang TIAN ; Bi-Qing CHEN ; Xue-Jun ZHU
Journal of Experimental Hematology 2023;31(3):880-888
OBJECTIVE:
To investigate the inflammatory effects of Cinobufotalin on monocytes in resting state and macrophages in activated state and its molecular mechanism.
METHODS:
THP-1 cells were stimulated with Phorbol 12-myristate 13-acetate to induce differentiation into macrophages. Lipopolysaccharides was added to activate macrophages in order to establish macrophage activation model. Cinobufotalin was added to the inflammatory cell model for 24 h as a treatment. CCK-8 was used to detect cell proliferation, Annexin V /PI double staining flow cytometry was used to detect cell apoptosis, flow cytometry was used to detect macrophage activation, and cytometric bead array was used to detect cytokines. Transcriptome sequencing was used to explore the gene expression profile regulated by Cinobufotalin. Changes in the significantly regulated molecules were verified by real-time quantitative polymerase chain reaction and Western blot.
RESULTS:
1∶25 concentration of Cinobufotalin significantly inhibited the proliferation of resting monocytes(P<0.01), and induced apoptosis(P<0.01), especially the activated macrophages(P<0.001, P<0.001). Cinobufotalin significantly inhibited the activation of macrophages, and significantly down-regulated the inflammatory cytokines(IL-6, TNF-α, IL-1β, IL-8) released by activated macrophages(P<0.001). Its mechanism was achieved by inhibiting TLR4/MYD88/P-IκBa signaling pathway.
CONCLUSION
Cinobufotalin can inhibit the inflammatory factors produced by the over-activation of macrophages through TLR4/MYD88/P-IκBa pathway, which is expected to be applied to the treatment and research of diseases related to the over-release of inflammatory factors.
Humans
;
Toll-Like Receptor 4/metabolism*
;
Myeloid Differentiation Factor 88/genetics*
;
Macrophages/metabolism*
;
Cytokines/metabolism*
;
Lipopolysaccharides/pharmacology*
;
NF-kappa B
3.Incidence and prognosis of olfactory and gustatory dysfunctions related to infection of SARS-CoV-2 Omicron strain: a national multi-center survey of 35 566 population.
Meng Fan LIU ; Rui Xia MA ; Xian Bao CAO ; Hua ZHANG ; Shui Hong ZHOU ; Wei Hong JIANG ; Yan JIANG ; Jing Wu SUN ; Qin Tai YANG ; Xue Zhong LI ; Ya Nan SUN ; Li SHI ; Min WANG ; Xi Cheng SONG ; Fu Quan CHEN ; Xiao Shu ZHANG ; Hong Quan WEI ; Shao Qing YU ; Dong Dong ZHU ; Luo BA ; Zhi Wei CAO ; Xu Ping XIAO ; Xin WEI ; Zhi Hong LIN ; Feng Hong CHEN ; Chun Guang SHAN ; Guang Ke WANG ; Jing YE ; Shen Hong QU ; Chang Qing ZHAO ; Zhen Lin WANG ; Hua Bin LI ; Feng LIU ; Xiao Bo CUI ; Sheng Nan YE ; Zheng LIU ; Yu XU ; Xiao CAI ; Wei HANG ; Ru Xin ZHANG ; Yu Lin ZHAO ; Guo Dong YU ; Guang Gang SHI ; Mei Ping LU ; Yang SHEN ; Yu Tong ZHAO ; Jia Hong PEI ; Shao Bing XIE ; Long Gang YU ; Ye Hai LIU ; Shao wei GU ; Yu Cheng YANG ; Lei CHENG ; Jian Feng LIU
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2023;58(6):579-588
Objective: This cross-sectional investigation aimed to determine the incidence, clinical characteristics, prognosis, and related risk factors of olfactory and gustatory dysfunctions related to infection with the SARS-CoV-2 Omicron strain in mainland China. Methods: Data of patients with SARS-CoV-2 from December 28, 2022, to February 21, 2023, were collected through online and offline questionnaires from 45 tertiary hospitals and one center for disease control and prevention in mainland China. The questionnaire included demographic information, previous health history, smoking and alcohol drinking, SARS-CoV-2 vaccination, olfactory and gustatory function before and after infection, other symptoms after infection, as well as the duration and improvement of olfactory and gustatory dysfunction. The self-reported olfactory and gustatory functions of patients were evaluated using the Olfactory VAS scale and Gustatory VAS scale. Results: A total of 35 566 valid questionnaires were obtained, revealing a high incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain (67.75%). Females(χ2=367.013, P<0.001) and young people(χ2=120.210, P<0.001) were more likely to develop these dysfunctions. Gender(OR=1.564, 95%CI: 1.487-1.645), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), oral health status (OR=0.881, 95%CI: 0.839-0.926), smoking history (OR=1.152, 95%CI=1.080-1.229), and drinking history (OR=0.854, 95%CI: 0.785-0.928) were correlated with the occurrence of olfactory and taste dysfunctions related to SARS-CoV-2(above P<0.001). 44.62% (4 391/9 840) of the patients who had not recovered their sense of smell and taste also suffered from nasal congestion, runny nose, and 32.62% (3 210/9 840) suffered from dry mouth and sore throat. The improvement of olfactory and taste functions was correlated with the persistence of accompanying symptoms(χ2=10.873, P=0.001). The average score of olfactory and taste VAS scale was 8.41 and 8.51 respectively before SARS-CoV-2 infection, but decreased to3.69 and 4.29 respectively after SARS-CoV-2 infection, and recovered to 5.83and 6.55 respectively at the time of the survey. The median duration of olfactory and gustatory dysfunctions was 15 days and 12 days, respectively, with 0.5% (121/24 096) of patients experiencing these dysfunctions for more than 28 days. The overall self-reported improvement rate of smell and taste dysfunctions was 59.16% (14 256/24 096). Gender(OR=0.893, 95%CI: 0.839-0.951), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), history of head and facial trauma(OR=1.180, 95%CI: 1.036-1.344, P=0.013), nose (OR=1.104, 95%CI: 1.042-1.171, P=0.001) and oral (OR=1.162, 95%CI: 1.096-1.233) health status, smoking history(OR=0.765, 95%CI: 0.709-0.825), and the persistence of accompanying symptoms (OR=0.359, 95%CI: 0.332-0.388) were correlated with the recovery of olfactory and taste dysfunctions related to SARS-CoV-2 (above P<0.001 except for the indicated values). Conclusion: The incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain is high in mainland China, with females and young people more likely to develop these dysfunctions. Active and effective intervention measures may be required for cases that persist for a long time. The recovery of olfactory and taste functions is influenced by several factors, including gender, SARS-CoV-2 vaccination status, history of head and facial trauma, nasal and oral health status, smoking history, and persistence of accompanying symptoms.
Female
;
Humans
;
Adolescent
;
SARS-CoV-2
;
Smell
;
COVID-19/complications*
;
Cross-Sectional Studies
;
COVID-19 Vaccines
;
Incidence
;
Olfaction Disorders/etiology*
;
Taste Disorders/etiology*
;
Prognosis
4.Factors associated with poor participation in annual eye examination for diabetic retinopathy
Cheng SHI ; Guang-Hao QIN ; Tie-Zhu LIN
International Eye Science 2023;23(4):677-681
AIM: To investigate the annual eye examination of diabetic patients in Shenyang and analyze the associated factors by using the Chinese version of the Compliance with Annual Diabetic Eye Exam Survey(CADEES)questionnaire.METHODS: This is a cross-sectional study. The diabetic patients who first visited Shenyang He Eye Specialist Hospital from November 2021 to October 2022 were collected. The Chinese version of the CADEES questionnaire was used to investigate the previous annual eye examinations of these patients, and no fundus examination in the past 1a was defined as poor participation. Factors associated with poor participation in annual eye examinations were identified by multivariate binary logistic regression analyses.RESULTS: A total of 468 patients were collected, including 192 males and 276 females, with an average age of 67.42±10.66 years. There were 330 patients without diabetic retinopathy(DR)and 138 patients with DR, among which 88 patients had vision-threatening diabetic retinopathy(VTDR)and 50 patients had non-vision-threatening diabetic retinopathy(NVTDR). 34.2%(160 cases)of patients had poor annual eye examination. The multivariate logistic regression analysis showed that, after controlling gender, age and other influencing factors, patients in rural area(OR=1.704, 95%CI: 1.019~2.850, P=0.042), VTDR(OR=1.948, 95%CI: 1.145~3.313, P=0.014), the item 7(I have felt blue, downhearted, or depressed over the past 4wk; OR=0.624, 95%CI: 0.401~0.971, P=0.037)and item 42(I receive a reminder from my eye doctor's office when it is time to schedule an exam; OR=0.618, 95%CI: 0.387~0.989, P=0.045)of CADEES questionnaire were risk factors for poor participation in the annual ophthalmic examination.CONCLUSIONS: Approximately one-third of diabetic patients in the Shenyang region may not follow the guidelines for DR annual eye examination. Healthcare providers should improve DR health education, increasing eye exam participation through necessary reminders.
5.Efficacy and safety of stereotactic body radiotherapy combined with karelizumab and apatinib in treatment of advanced hepatocellular carcinoma
Yan-Wen LEI ; Guang-Cheng DING ; De-Hua QIN ; Yan-Wei GUO ; Hai-Xia WANG ; Jian ZHANG ; Jia-Fu CHEN ; Qing-Zhu LUO ; Wen-Jing GUO
Medical Journal of Chinese People's Liberation Army 2023;48(12):1420-1426
Objective To investigate the efficacy and safety of stereotactic body radiotherapy(SBRT)combined with camrelizumab and apatinib in treatment of advanced hepatocellular carcinoma(HCC).Methods The clinical data were retrospectively analyzed of 85 patients with advanced HCC treated in the Fifth Affiliated Hospital of Zhengzhou University and People's Hospital of Zhengzhou from January 2019 to September 2021.They were divided into observation group(n=31,SBRT combined with camrelizumab and apatinib)and control group(n=54,treated with camrelizumab and apatinib)according to whether they received SBRT.The propensity score matching(PSM)was used to balance the influence of confounding factors.The objective remission rate(ORR)and disease control rate(DCR)were compared between the two groups.The 6-month overall survival rate,1-year overall survival rate and progression-free survival(PFS)were compared between the two groups by Kaplan-Meier method.The safety of the two groups was evaluated by Common Terminology Criteria for Adverse Events(CTCAE)version 5.0.Results Before PSM,there were significant differences in age(P=0.043),number of extrahepatic metastasis(P=0.028),and previous surgical treatment(P=0.038)between the two groups.After PSM,there was no significant difference in baseline characteristics between the two groups(P>0.05).After PSM,27 cases were included in each groups,and three months after treatment,the ORR in observation group and control group were 66.7%and 29.6%,respectively,showed difference with statistically significant(P=0.006);and the DCR in the both groups were 96.3%and 85.2%respectively,showed no statistically significant difference(P=0.175).There were statistical differences in 6-month overall survival rate(96.3%vs.80.9%,P=0.001),1-year overall survival rate(75.0%vs.61.4%,P=0.034)and median PFS(8 months vs.5 months,P=0.003)between the observation group and control group.Multi-factor Cox regression analysis showed that baseline alpha-fetoprotein(AFP)≥400 ng/ml was an independent risk factor for affecting the survival of patients with advanced HCC(HR>1,P<0.05),while the triple therapy and previous targeted drugs therapy were the protective factors for the survival of patients with advanced HCC(HR<1,P<0.05).In the observation group,4 patients had grade 3 adverse reactions,and the common adverse reactions were dyspepsia(14.8%).One case of grade 3 adverse reactions occurred in control group,and there was no statistically significant difference in the incidence of adverse reactions between the two groups(P=0.639).Conclusion SBRT combined with camrelizumab and apatinib is a safe and effective treatment for advanced HCC with significant clinical effect and controllable adverse reactions.
6.Medication rule of traditional Chinese medicine for heart failure after myocardial infarction: based on data mining.
Jing-Jing WEI ; Zheng-Wang ZHU ; Guang-Cao PENG ; Rui YU ; Qing ZHANG ; Peng-le HAO ; Cheng ZHOU ; Ming-Jun ZHU
China Journal of Chinese Materia Medica 2022;47(20):5654-5661
This study aims to explore the medication rule of traditional Chinese medicine(TCM) for heart failure after myocardial infarction via data mining. To be specific, articles on the treatment of the disease with Chinese medicine were retrieved from CNKI, Wanfang, VIP, and SinoMed and related information was collected. A database was created with Microsoft Excel 2019, and SPSS Clementine 12.0 and IBM SPSS Statistics 23.0 were applied for association rules analysis, cluster analysis, and factor analysis. Finally, a total of 81 TCM prescriptions were screened out, involving 91 medicinals with cumulative use frequency of 740. The main syndromes were Qi deficiency and blood stasis, Yang Qi deficiency and blood stasis together with retained morbid fluid, deficiency of both Qi and Yin and blood stasis. The medicinals with high-frequency were Astragali Radix, Salviae Miltiorrhizae Radix et Rhizoma, Ginseng Radix et Rhizoma, Poria, and Aconiti Lateralis Radix Praeparata. The effects of the medicinals were tonifying deficiency, activating blood and resolving stasis, and promoting urination and draining dampness. The association rules analysis yielded "Astragali Radix-Salviae Miltiorrhizae Radix et Rhizoma" "Astragali Radix-Aconiti Lateralis Radix Praeparata-Salviae Miltiorrhizae Radix et Rhizoma" "Aconiti Lateralis Radix Praeparata-Ginseng Radix et Rhizoma-Salviae Miltiorrhizae Radix et Rhizoma-Astragali Radix" combinations. Cluster analysis yielded 6 basic formulas for heart failure after myocardial infarction. Factor analysis extracted a total of 8 common factors. Heart failure after myocardial infarction is characterized by the syndrome of deficiency in nature and excess in superficiality. The core pathogenesis is "deficiency" "stasis" "retained morbid fluid", particularly "deficiency". This disease is closely related to the heart, lung, and spleen. The basic treatment principle is replenishing Qi and activating blood, and warming Yang, excreting water, and nourishing yin should also be emphasized. The common basic prescriptions, such as Siwu Decoction, Shengmai Powder, Xuefu Zhuyu Decoction, Linggui Zhugan Decoction, and Shenfu Decoction, have been discovered. This study provided data for clinical medication and drug development for heart failure after myocardial infarction.
Medicine, Chinese Traditional
;
Rhizome
;
Aconitum
;
Data Mining
;
Heart Failure/drug therapy*
;
Myocardial Infarction/drug therapy*
;
Syndrome
7.Recurrent epistaxis with coagulation disorders in a boy aged 2 years.
Jia-Zhuo LI ; Xin TIAN ; Chu-Shu LIAO ; Xiang-Ling HE ; Cheng-Guang ZHU
Chinese Journal of Contemporary Pediatrics 2022;24(7):817-820
A boy, aged 2 years and 5 months, had recurrent epistaxis, and the coagulation function examination showed that activated partial thromboplastin time (APTT) was significantly prolonged. Further laboratory examinations showed that the prolonged APTT was not immediately corrected in the APTT correction test, with positive lupus anticoagulant and low prothrombin activity. The boy was diagnosed with hypoprothrombinemia-lupus anticoagulant syndrome. The condition was improved after treatment with glucocorticoid, immunoglobulin, and vitamin K1. The boy has been followed up for 6 months, and no epistaxis was observed. Prothrombin activity returned to normal, and lupus anticoagulant remained positive. This is a relatively rare disease, and for patients with bleeding symptoms and coagulation disorders, it is recommended to perform the tests such as APTT correction test, lupus anticoagulant testing, and coagulation factor dilution test, which can improve the detection rate of this disease, so as to achieve early diagnosis, provide rational treatment in the early stage, and improve the prognosis.
Antiphospholipid Syndrome/diagnosis*
;
Blood Coagulation Disorders
;
Child, Preschool
;
Epistaxis/etiology*
;
Humans
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Hypoprothrombinemias/diagnosis*
;
Lupus Coagulation Inhibitor
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Male
;
Partial Thromboplastin Time
;
Prothrombin
8.Joint Association of Metabolic Health and Obesity with Ten-Year Risk of Cardiovascular Disease among Chinese Adults.
Jun Ting LIU ; Hong Yan YAO ; Shi Cheng YU ; Jian Jun LIU ; Guang Jin ZHU ; Shao Mei HAN ; Tao XU
Biomedical and Environmental Sciences 2022;35(1):13-21
OBJECTIVE:
This study aims to investigate the association of metabolic phenotypes that are jointly determined by body mass index (BMI) or fat mass percentage and metabolic health status with the ten-year risk of cardiovascular disease (CVD) among Chinese adults.
METHODS:
Data were obtained from a cross-sectional study. BMI and body fat mass percentage (FMP) combined with the metabolic status were used to define metabolic phenotypes. Multiple linear regression and logistic regression were used to examine the effects of metabolic phenotypes on CVD risk.
RESULTS:
A total of 13,239 adults aged 34-75 years were included in this study. Compared with the metabolically healthy non-obese (MHNO) phenotype, the metabolically unhealthy non-obese (MUNO) and metabolically unhealthy obese (MUO) phenotypes defined by BMI showed a higher CVD risk [odds ratio, OR (95% confidence interval, CI): 2.34 (1.89-2.89), 3.45 (2.50-4.75), respectively], after adjusting for the covariates. The MUNO and MUO phenotypes defined by FMP showed a higher CVD risk [ OR (95% CI): 2.31 (1.85-2.88), 2.63 (1.98-3.48), respectively] than the MHNO phenotype. The metabolically healthy obese phenotype, regardless of being defined by BMI or FMP, showed no CVD risk compared with the MHNO phenotype.
CONCLUSION
General obesity without central obesity does not increase CVD risk in metabolically healthy individuals. FMP might be a more meaningful factor for the evaluation of the association of obesity with CVD risk. Obesity and metabolic status have a synergistic effect on CVD risk.
Adipose Tissue/anatomy & histology*
;
Adult
;
Aged
;
Body Mass Index
;
Cardiovascular Diseases/etiology*
;
China/epidemiology*
;
Cross-Sectional Studies
;
Female
;
Humans
;
Male
;
Metabolic Diseases/etiology*
;
Middle Aged
;
Obesity/complications*
;
Phenotype
;
Regression Analysis
;
Risk Factors
9.Two cases of Vibrio vulnificus primary sepsis.
Da Sheng CHENG ; Shi Zhao JI ; Guang Yi WANG ; Feng ZHU ; Shi Chu XIAO ; Shi Hui ZHU
Chinese Journal of Burns 2022;38(3):276-280
This article analyzed the medical records of two patients with Vibrio vulnificus primary sepsis who were admitted to the First Affiliated Hospital of Naval Medical University and reviewed the latest literature. On November 6, 2019, a 54-year-old male patient was admitted to the hospital. The patient's lower limbs were red, swollen, and painful with ecchymosis and hemorrhagic bullae after he ate freshwater products. The emergency fasciotomy was performed 3 h after admission, and the multiple organ failure occurred after operation. The patient was given up treatment 24 h after admission. On August 12, 2020, a 73-year-old male patient was admitted to the hospital. He was in shock state on admission and had hemorrhagic bullae on his right lower limb after he ate seafood. At 3 h post admission, he underwent emergency surgical exploration and amputation of right thigh. Six days later, he received negative pressure wound treatment on the stump. On the 13th day post admission, his families forgo the active treatment and he died 15 d after admission. The two cases were both failed to be diagnosed at the first time, and the disease progressed rapidly. Necrotizing fasciitis and multiple organ failure occurred. After the diagnosis was confirmed, timely fasciotomy and high amputation were performed respectively. The microbiological examinations both reported Vibrio vulnificus. Although the 2 cases were not cured successfully, the course of disease and some indexes of patient with early amputation were better than those of patients with fasciotomy. Vibrio vulnificus is widely distributed and frequently detected in fresh water products. The pathogenic pathway is fuzzy and complex, and it is easy to be misdiagnosed. It is necessary to establish the treatment process of Vibrio vulnificus sepsis. Early and aggressive surgical intervention should be carried out as soon as possible, fasciotomy and debridement should be thorough, and the patients with hemorrhagic bullae should be amputated early. Postoperative comprehensive measures are also important for improving the survival rate of patients.
Aged
;
Fasciitis, Necrotizing/surgery*
;
Humans
;
Male
;
Middle Aged
;
Multiple Organ Failure
;
Sepsis/diagnosis*
;
Vibrio Infections/pathology*
;
Vibrio vulnificus
10.Clinical effect of different maintenance doses of caffeine citrate in the treatment of preterm infants requiring assisted ventilation: a pilot multicenter study.
Yang YANG ; Ke-Yu LU ; Rui CHENG ; Qin ZHOU ; Guang-Dong FANG ; Hong LI ; Jie SHAO ; Huai-Yan WANG ; Zheng-Ying LI ; Song-Lin LIU ; Zhen-Guang LI ; Jin-Lan CAI ; Mei XUE ; Xiao-Qing CHEN ; Zhao-Jun PAN ; Yan GAO ; Li HUANG ; Hai-Ying LI ; Lei SONG ; San-Nan WANG ; Gui-Hua SHU ; Wei WU ; Meng-Zhu YU ; Zhun XU ; Hong-Xin LI ; Yan XU ; Zhi-Dan BAO ; Xin-Ping WU ; Li YE ; Xue-Ping DONG ; Qi-Gai YIN ; Xiao-Ping YIN ; Jin-Jun ZHOU
Chinese Journal of Contemporary Pediatrics 2022;24(3):240-248
OBJECTIVES:
To explore the optimal maintenance dose of caffeine citrate for preterm infants requiring assisted ventilation and caffeine citrate treatment.
METHODS:
A retrospective analysis was performed on the medical data of 566 preterm infants (gestational age ≤34 weeks) who were treated and required assisted ventilation and caffeine citrate treatment in the neonatal intensive care unit of 30 tertiary hospitals in Jiangsu Province of China between January 1 and December 31, 2019. The 405 preterm infants receiving high-dose (10 mg/kg per day) caffeine citrate after a loading dose of 20 mg/kg within 24 hours after birth were enrolled as the high-dose group. The 161 preterm infants receiving low-dose (5 mg/kg per day) caffeine citrate were enrolled as the low-dose group.
RESULTS:
Compared with the low-dose group, the high-dose group had significant reductions in the need for high-concentration oxygen during assisted ventilation (P=0.044), the duration of oxygen inhalation after weaning from noninvasive ventilation (P<0.01), total oxygen inhalation time during hospitalization (P<0.01), the proportion of preterm infants requiring noninvasive ventilation again (P<0.01), the rate of use of pulmonary surfactant and budesonide (P<0.05), and the incidence rates of apnea and bronchopulmonary dysplasia (P<0.01), but the high-dose group had a significantly increased incidence rate of feeding intolerance (P=0.032). There were no significant differences between the two groups in the body weight change, the incidence rates of retinopathy of prematurity, intraventricular hemorrhage or necrotizing enterocolitis, the mortality rate, and the duration of caffeine use (P>0.05).
CONCLUSIONS
This pilot multicenter study shows that the high maintenance dose (10 mg/kg per day) is generally beneficial to preterm infants in China and does not increase the incidence rate of common adverse reactions. For the risk of feeding intolerance, further research is needed to eliminate the interference of confounding factors as far as possible.
Caffeine/therapeutic use*
;
Citrates
;
Humans
;
Infant
;
Infant, Newborn
;
Infant, Premature
;
Respiration, Artificial
;
Retrospective Studies

Result Analysis
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