1.Renal eosinophilic vacuolated tumor: a clinicopathological analysis of seven cases
Yan WANG ; Jie ZHUANG ; Yujun LI ; Xiaobin JI ; Yunxia LI ; Yuejuan ZHANG ; Wenjuan YU ; Daochen ZHONG ; Wei ZHANG ; Yanxia JIANG
Chinese Journal of Pathology 2024;53(9):910-915
		                        		
		                        			
		                        			Objective:To investigate the clinicopathological features and differential diagnosis of eosinophilic vacuolated tumor (EVT).Methods:Seven cases of EVT with characteristic morphology and unequivocal diagnosis from the Affiliated Hospital of Qingdao University (6 cases), Qingdao, China and the 971 Hospital of PLA Navy (1 case), Qingdao, China between January 2010 and December 2021 were subject to morphological and immunohistochemical analyses. Additionally, whole exome sequencing (WES) was performed in two cases. Twenty-two cases of renal oncocytoma (RO) and 17 cases of eosinophilic chromophobe renal cell carcinoma (eChRCC) diagnosed at the same time were used as controls.Results:Four males and three females with a mean age of 42 years (range: 29-61 years) were included in the study. The tumors were nodular and well-circumscribed, with sizes ranging from 1.5 to 4.5 cm. On cross-section, they appeared gray-red or gray-white, solid, and soft. Tumor cells were arranged in nests, solid sheets, and acinar or small vesicular structures. These cells exhibited eosinophilic cytoplasm with large, prominent clear vacuoles and round nuclei with prominent nucleoli. Perinuclear halos were focally present in four cases, while small tumor cells with sparse cytoplasm and hyperchromatic nuclei were seen in one case. No necrosis or mitosis was noted. Edematous stroma was detected in three cases. All tumors were positive for CD117 and Cathepsin K, but negative for vimentin and CK7. CK20 was positive in scattered individual cells, and Ki-67 positivity ranged from 1% to 4%. Point mutations in MTOR were identified in both patients who were subject to the molecular analysis. Statistical differences in the expression of Cathepsin K, CD10, S-100A1, and Cyclin D1 between EVT and RO ( P<0.05) were significant, so were the differences in the expression of Cathepsin K, CD10, CK7 and claudin 7 between EVT and eChRCC ( P<0.001). Seven patients were followed up for 4 to 96 months (mean, 50 months), with no recurrences or metastases. Conclusions:EVT is a rare renal tumor that shares morphological and immunophenotypic features with RO and eChRCC, and it is closely linked to the TSC/MTOR pathway. The presence of large prominent transparent vacuoles in eosinophilic cytoplasm along with conspicuous nucleoli is its key morphological characteristics. The use of combined immunohistochemical stains greatly aids in its diagnosis. Typically, the tumor exhibits indolent biological behaviors with a favorable prognosis.
		                        		
		                        		
		                        		
		                        	
2.Thyroid autoimmunity increases the risk of second pregnancy abortion in people with unexplained recurrent abortion
Zhaorui WANG ; Xiaohui JI ; Yihong GUO ; Yingcui LIANG ; Zhuang LI ; Zhuoyao MAI ; Menglan ZHU ; Lujing CHEN ; Hui CHEN
Journal of Chinese Physician 2024;26(11):1607-1612
		                        		
		                        			
		                        			Objective:To investigate the relationship between thyroid autoimmunity and pregnancy outcome in patients with unexplained recurrent abortion.Methods:A retrospective cohort study of 354 patients with normal thyroid function with recurrent abortion of unknown cause admitted to Sun Yat-sen Memorial Hospital, Sun Yat-sen University from January 2015 to June 2022 was used to detect thyroid antibody and thyroid function levels during pregnancy or early pregnancy. They were divided into TAI group ( n=144) and non-TAI group ( n=210) according to whether thyroid autoimmunity (TAI) was complicated or not. Tracking pregnancy outcomes. Results:Compared with the non-TAI group, the TAI group had a higher proportion of pregnancy outcomes resulting in miscarriage [42.4%(61/144) vs 27.1%(57/210), P=0.004]. In patients with unexplained recurrent abortion, TAI significantly increased the risk of spontaneous abortion [ OR(95% CI): 2.13(1.34, 3.41), P=0.001]. Positive TPOAb or TgAb also increased the risk of spontaneous abortion [ OR(95% CI): 2.18(1.37, 3.50), P=0.001; OR(95% CI): 2.33(1.31, 4.13), P=0.004]. TAI, TPOAb and TgAb had no significant interaction with age ( P=0.482, 0.724, 0.740). Conclusions:TAI is positively associated with the risk of spontaneous abortion in patients with unexplained recurrent abortion. TAI may be a potential risk factor for unexplained recurrent abortion, expanding the diagnosis and treatment of unexplained recurrent abortion.
		                        		
		                        		
		                        		
		                        	
3.Effect of Modified Erchentang on Bronchioles of Rats with Chronic Obstructive Pulmonary Disease by HMGB1/RAGE/NF-κB Signaling Pathway
Lizhi SHANG ; Yaoyang LI ; Shu JI ; Wenying XIE ; Haofan SHANG ; Zhuang CHEN ; Gaoyang LIU ; Qi WANG
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(6):44-54
		                        		
		                        			
		                        			ObjectiveTo study the effect of modified Erchentang on the expression of key molecules in the high mobility group Box 1 protein (HMGB1)/receptor for advanced glycation endproduct (RAGE)/nuclear factor-κB (NF-κB) signaling pathway in bronchioles of rats with chronic obstructive pulmonary disease (COPD), to explore the mechanism of modified Erchentang against bronchiolar inflammation of COPD rats via HMGB1/RAGE/NF-κB signaling pathway. MethodSixty SD rats were randomly divided into normal group, model group, modified Erchentang low-, medium- and high-dose groups (5, 10, 20 g·kg-1·d-1) and ethyl pyruvate (HMGB1 inhibitor) group, with 10 in each group. The COPD rat model was prepared by cigarette smoke combined with tracheal injection of lipopolysaccharide (LPS). After modeling, the modified Erchentang groups were given corresponding drugs (ig) and Ringer's solution (4 mL, ip), while the EP group was treated with equal volume of normal saline (ig) and EP (0.04 g·kg-1·d-1, ip). The normal group and the model group received equal volume of normal saline (ig) and Ringer's solution (ip) for 21 consecutive days. The contents of HMGB1, chemokine (C-X-C motif) ligand 1 (CXCL1), CXCL2 and monocyte chemotactic protein-1 (MCP-1) in bronchoalveolar lavage fluid (BALF) were detected by enzyme-linked immunosorbent assay (ELISA). The mRNA expressions of HMGB1, RAGE and NF-κB p65 were determined by Real-time polymerase chain reaction (Real-time PCR), and the protein expressions of HMGB1, RAGE, p-NF-κB p65, and alpha-smooth muscle actin (α-SMA) in bronchioles tissue of rats were determined by immunohistochemistry (IHC). ResultCompared with the conditions in the normal group, the forced vital capacity (FVC), forced expiratory volume in the first second (FEV1) and FEV1/FVC in the model group were decreased (P<0.01) while the contents of HMGB1, CXCL1, CXCL2 and MCP-1 in BALF were increased (P<0.01). And the model group presented higher mRNA expressions of HMGB1, RAGE and NF-κB p65 (P<0.01) and protein expressions of HMGB1, RAGE, p-NF-κB p65 and α-SMA (P<0.05, P<0.01) than the normal group. Compared with the model group, the modified Erchentang medium- and high-dose groups had increased FEV1/FVC (P<0.05, P<0.01), lowered contents of HMGB1, CXCL1, CXCL2 and MCP-1 in BALF (P<0.05, P<0.05), and reduced mRNA expressions of HMGB1, RAGE and NF-κB p65 (P<0.05, P<0.01) and protein expressions of HMGB1, RAGE, p-NF-κB p65 and α-SMA (P<0.05, P<0.01). ConclusionModified Erchentang can resist bronchiolar inflammation of COPD rats. The mechanism may be related to down-regulating the mRNA expressiona of HMGB1 and RAGE, inhibiting the activity of NF-κB, and reducing the release of HMGB1, CXCL1, CXCL2 and MCP-1, thus suppressing the inflammatory injury and abnormal repair of bronchioles. 
		                        		
		                        		
		                        		
		                        	
4.Anti-inflammatory Mechanism of Modified Erchentang on Chronic Obstructive Pulmonary Disease Through Jagged1/Notch1/Hes1 Signaling Pathway
Lizhi SHANG ; Shu JI ; Yaoyang LI ; Wenhao HU ; Wenying XIE ; Zhuang CHEN ; Gaoyang LIU ; Haofan SHANG ; Hongwei WANG
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(9):109-118
		                        		
		                        			
		                        			ObjectiveTo observe the effect of modified Erchentang on the expression of key molecules in the Jagged1/Notch1/Hes1 signaling pathway in lung tissues of rats with chronic obstructive pulmonary disease (COPD) and explore its anti-inflammatory effect and molecular mechanism on COPD through the Jagged1/Notch1/Hes1 signaling pathway. MethodSixty SD rats were randomly divided into normal group, model group, low-, medium-, and high-dose modified Erchentang groups (5, 10, 20 g·kg-1), and γ-secretase inhibitor DAPT group (0.02 g·kg-1), with 10 rats in each group. The COPD model was induced in rats by cigarette smoking combined with intratracheal instillation of lipopolysaccharide (LPS). Rats were treated with corresponding drugs by gavage, while those in the normal group and the model group were treated with the same amount of normal saline by gavage. The serum levels of Notch1, soluble intercellular adhesion molecule-1 (sICAM-1), activated leukocyte cell adhesion molecule (ALCAM), and soluble vascular adhesion molecule-1 (sVCAM-1) were detected by enzyme-linked immunosorbent assay (ELISA). The mRNA expression of Jagged1, Notch1, and Hes1 was detected by Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR). The protein expression of Jagged1, Notch1, Notch1 intracellular domain (NICD1), and Hes1 in lung tissues of rats was detected by immunohistochemistry (IHC). ResultCompared with the normal group, the model group showed increased serum content of Notch1, sICAM-1, ALCAM, and sVCAM-1 (P<0.01), increased mRNA expression of Jagged1, Notch1, and Hes1 in lung tissues (P<0.01), and increased protein expression of Jagged1, Notch1, NICD1, and Hes1 (P<0.01). Compared with the model group, the medium- and high-dose modified Erchentang groups and the DAPT group showed decreased serum content of Notch1, sICAM-1, ALCAM, and sVCAM-1 (P<0.05, P<0.05), down-regulated mRNA expression of Jagged1, Notch1, and Hes1 (P<0.05, P<0.01), and reduced protein expression of Jagged1, Notch1, NICD1, and Hes1(P<0.05, P<0.01). ConclusionModified Erchentang may inhibit the inflammatory response in the lung of COPD rats, and its mechanism may be related to the resistance of inflammatory injury in the lung by decreasing the mRNA expression of Jagged1, Notch1, and Hes1 and inhibiting the release of Notch1, sICAM-1, ALCAM, and sVCAM-1. 
		                        		
		                        		
		                        		
		                        	
5.Interpretation of the essential updates in guidelines for the prevention and treatment of chronic hepatitis B (Version 2022).
Hong YOU ; Ya Meng SUN ; Meng Yang ZHANG ; Yue Min NAN ; Xiao Yuan XU ; Tai Sheng LI ; Gui Qiang WANG ; Jin Lin HOU ; Zhongping DUAN ; Lai WEI ; Fu Sheng WANG ; Ji Dong JIA ; Hui ZHUANG
Chinese Journal of Hepatology 2023;31(4):385-388
		                        		
		                        			
		                        			Chinese Society of Hepatology and Chinese Society of Infectious Diseases, Chinese Medical Association update the guidelines for the prevention and treatment of chronic hepatitis B (version 2022) in 2022. The latest guidelines recommend more extensive screening and more active antiviral treating for hepatitis B virus infection. This article interprets the essential updates in the guidelines to help deepen understanding and better guide the clinical practice.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Hepatitis B, Chronic/drug therapy*
		                        			;
		                        		
		                        			Hepatitis B/drug therapy*
		                        			;
		                        		
		                        			Hepatitis B virus
		                        			;
		                        		
		                        			Antiviral Agents/therapeutic use*
		                        			;
		                        		
		                        			Gastroenterology
		                        			
		                        		
		                        	
6.Ten-year changes in clinical characteristics and antiviral treatment patterns of chronic hepatitis B in China: a CR-HepB-based real-world study.
Xiao Qian XU ; Hao WANG ; Shan SHAN ; Hong YOU ; Yue Min NAN ; Xiao Yuan XU ; Zhong Ping DUAN ; Lai WEI ; Jin Lin HOU ; Hui ZHUANG ; Ji Dong JIA ; Yuan Yuan KONG
Chinese Journal of Hepatology 2023;31(7):698-704
		                        		
		                        			
		                        			Objective: To understand ten-year changes in clinical characteristics and antiviral treatment patterns of chronic hepatitis B in China. Methods: Patients with chronic HBV infection:demographic, virologic, hematologic, blood biochemistry, and antiviral treatment data were extracted from the China Registry of Hepatitis B (CR-HepB) database between 2012 and 2022 for descriptive statistics and change trend analysis. Multiple group comparisons were conducted using the Kruskal Wallis H test, while counting data was compared between groups using χ (2) test. Results: A total of 180 012 patients with chronic HBV infection were included, with a median age of 40 years old, and a male proportion accounting for 60.2%. The HBeAg positive rate was 43.3%. Over time, the median age of new patients each year increased from 39 to 47 years, while the HBeAg positive rate decreased from 51.3% to 32.8%. The initial diagnosis of patients was mainly CHB (71.4%), followed by hepatitis B cirrhosis (11.8%), inactive HBsAg carrier status (10.6%), and chronic HBV carrier status (6.2%). Among the newly registered patients every year from 2012 to 2022, the proportion of hepatitis B cirrhosis remained stable, but after 2019, the proportion of CHB increased and the proportion of other diagnoses decreased. The proportion of patients with cirrhosis increased with age in different age groups, with 3.5%, 19.3%, and 30.4% in the < 40, 40-69, and≥70 age groups, respectively. The proportion of women in patients with cirrhosis also increased with age, from 16.1% in those < 30 years old to 44.3% in those≥80 years old. From 2012 to 2022, the proportion of patients receiving first-line nucleos(t)ide analog antiviral treatment increased year by year, from 51.0% in 2012-2013 to 99.8% in 2022. Conclusion: The CR-HepB registration data reflect the changes in clinical characteristics and antiviral treatment patterns in patients with chronic HBV infection in China over the past ten years and can thus provide a reference to promote hepatitis B diagnosis and treatment practice, as well as scientific research.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Antiviral Agents/therapeutic use*
		                        			;
		                        		
		                        			Hepatitis B, Chronic/epidemiology*
		                        			;
		                        		
		                        			Hepatitis B e Antigens
		                        			;
		                        		
		                        			Hepatitis B/drug therapy*
		                        			;
		                        		
		                        			Hepatitis B Surface Antigens
		                        			;
		                        		
		                        			Hepatitis A
		                        			;
		                        		
		                        			Liver Cirrhosis/drug therapy*
		                        			;
		                        		
		                        			China/epidemiology*
		                        			;
		                        		
		                        			Registries
		                        			;
		                        		
		                        			Hepatitis B virus/genetics*
		                        			;
		                        		
		                        			DNA, Viral
		                        			
		                        		
		                        	
7.Development of parenting behavior scale for caregivers of children aged 2 to 6 years and analysis for its reliability and validity.
Ni Na XIONG ; Rui Yun SHEN ; Ying WANG ; Ming ZHAO ; Zhuang WEI ; Wan Xia ZHANG ; Yan Jie CHEN ; Yang MA ; Wen Jing JI ; Ai Min LIANG
Chinese Journal of Preventive Medicine 2023;57(1):58-62
		                        		
		                        			
		                        			To develop a caregiver parenting behavior scale for children aged 2 to 6 years, and to verify its reliability and validity. This study recruited 1 350 caregivers of children aged 2 to 6 years. The item discrimination analysis and exploratory factor analysis were used to analyze the structure, dimensions and items of the scale. Homogeneity reliability, split-half reliability and test-retest reliability were used to analyze the reliability of the scale. Content validity and construct validity were used to analyze the validity of the scale. The results showed that the final scale contained 7 dimensions and 45 items. Cronbach's α coefficient of the total scale was 0.945; the coefficient of split half was 0.899; the test-retest reliability analysis showed that the correlation coefficients between the two tests were 0.893 (total score), 0.854 (social), 0.832 (language), 0.871 (gross motor), 0.893 (fine motor), 0.862 (cognitive), 0.832 (self-care), and 0.872 (sensory). The content validity analysis was carried out by two rounds of expert argumentation using Delphi expert consultation method. The Kendall coefficient of the items score in two rounds of Delphi expert consultation was 0.813 (P<0.01). The structure validity analysis showed that there were significant correlations between each dimension and the total scale, also between each dimension of the scale, and the extracted average variance values of each dimension was greater than the correlation coefficients between this dimension and other dimensions. In conclusion, the reliability and validity of the scale are qualified. It can be used as a tool to evaluate and guide the parenting behavior of caregivers of children aged 2 to 6 years.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Child
		                        			;
		                        		
		                        			Caregivers/psychology*
		                        			;
		                        		
		                        			Reproducibility of Results
		                        			;
		                        		
		                        			Parenting
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		                        			Surveys and Questionnaires
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		                        			Factor Analysis, Statistical
		                        			;
		                        		
		                        			Psychometrics/methods*
		                        			
		                        		
		                        	
8.Mechanism of propofol inhibiting carotid sinus baroreflex in rats with type 2 diabetes mellitus: GluR2 subunit-containing AMPA receptors in nucleus ambiguus
Chunxin HAN ; Lanfang JIANG ; Aozhang JI ; Zhao ZHUANG ; Qianqian CAO ; Shoushi WANG
Chinese Journal of Anesthesiology 2023;43(9):1067-1071
		                        		
		                        			
		                        			Objective:To evaluate the relationship between the mechanism of propofol inhibiting carotid sinus baroreflex (CSR) and GluR2 subunit-containing AMPA receptors in the nucleus ambiguus of rats with type 2 diabetes mellitus (T2DM).Methods:SPF healthy male Sprague-Dawley rats, aged 3 weeks, were selected and fed a high glucose and high fat diet for 6 weeks, and then streptozotocin 30 mg/kg was intraperitoneally injected to prepare a T2DM model of rats. Twenty-four T2DM rats were divided into 4 groups ( n=6 each) using a random number table method: diabetes mellitus-normal saline group (DN group), diabetes mellitus-propofol group (DP group), AMPA receptor agonist-normal saline group (AN group), and AMPA receptor agonist-propofol group (AP group). Another 12 normal rats were selected and divided into 2 groups ( n=6 each) using a random number table method: normal-normal saline group (NN group) and normal-propofol group (NP group). AMPA receptor agonist mibamitor 1 nmol/L (50 nl) was injected into the nucleus ambiguus using a micropipette at 30 min before perfusion of isolated carotid sinus in AN and AP groups. Propofol 45 mg·kg -11·h -1 was infused for 2 h via the femoral vein in NP group, DP group and AP group, and the equal volume of normal saline was given instead in the other groups. A model for perfusing isolated carotid sinus was developed at 20 min after infusion of propofol or normal saline, the intracarotid sinus pressure (ISP)-mean arterial blood pressure (MAP) curve was drawn, and CSR parameters such as maximum slope (PS), threshold pressure (TP), saturation pressure (SP), equilibrium pressure (EP), maximum decrease in MAP reflexivity (RD), and carotid sinus baroreceptor operating range (OR) were recorded. Brain tissues were taken at the end of perfusion, and the expression of GluR2 subunit in the nucleus ambiguus was detected by Western blot and immunofluorescence. Results:Compared with the corresponding normal saline groups (NN group, DN group, AN group), PS and RD were significantly decreased, TP, SP and OR were increased ( P<0.05), and the ISP-MAP curve was shifted upward in propofol groups (NP group, DP group, AP group), the expression of GluR2 subunit in the nucleus ambiguus was down-regulated in NP and DP groups ( P<0.05), and no significant change was found in the expression of GluR2 subunit in the nucleus ambiguus in AP group ( P>0.05). Compared with NP group, PS and RD were significantly decreased, TP, SP and OR were increased ( P<0.05), the ISP-MAP curve was shifted upward, and the expression of GluR2 subunit in the nucleus ambiguus was down-regulated in DP group ( P<0.05). Compared with DP group, PS and RD were significantly increased, TP, SP and OR were decreased ( P<0.05), the ISP-MAP curve was shifted downward, and the expression of GluR2 subunit in the nucleus ambiguus was up-regulated in AP group ( P<0.05). Conclusions:The mechanism by which propofol inhibits CSR may be related to down-regulation of the expression of GluR2 subunits-containing AMPA receptors in the nucleus ambiguus of rats with T2DM.
		                        		
		                        		
		                        		
		                        	
9.Lingguizhugan Decoction, a Chinese herbal formula, improves insulin resistance in overweight/obese subjects with non-alcoholic fatty liver disease: a translational approach.
Liang DAI ; Jingjuan XU ; Baocheng LIU ; Yanqi DANG ; Ruirui WANG ; Lijie ZHUANG ; Dong LI ; Lulu JIAO ; Jianying WANG ; Lei ZHANG ; Linda L D ZHONG ; Wenjun ZHOU ; Guang JI
Frontiers of Medicine 2022;16(5):745-759
		                        		
		                        			
		                        			Lingguizhugan Decoction (LGZG) has been investigated in basic studies, with satisfactory effects on insulin resistance in non-alcoholic fatty liver disease (NAFLD). This translational approach aimed to explore the effect and underlying mechanism of LGZG in clinical setting. A randomized, double-blinded, placebo-controlled trial was performed. A total of 243 eligible participants with NAFLD were equally allocated to receive LGZG (two groups: standard dose and low dose) or placebo for 12 weeks on the basis of lifestyle modifications. The primary efficacy variable was homeostasis model assessment of insulin resistance (HOMA-IR). Analyses were performed in two populations in accordance with body mass index (BMI; overweight/obese, BMI ⩾ 24 kg/m2; lean, BMI < 24 kg/m2). For overweight/obese participants, low-dose LGZG significantly decreased their HOMA-IR level compared with placebo (-0.19 (1.47) versus 0.08 (1.99), P = 0.038). For lean subjects, neither dose of LGZG showed a superior effect compared with placebo. Methylated DNA immunoprecipitation sequencing and real-time qPCR found that the DNA N6-methyladenine modification levels of protein phosphatase 1 regulatory subunit 3A (PPP1R3A) and autophagy related 3 (ATG3) significantly increased after LGZG intervention in overweight/obese population. Low-dose LGZG effectively improved insulin resistance in overweight/obese subjects with NAFLD. The underlying mechanism may be related to the regulation of DNA N6-methyladenine modification of PPP1R3A and ATG3. Lean subjects may not be a targeted population for LGZG.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Non-alcoholic Fatty Liver Disease/drug therapy*
		                        			;
		                        		
		                        			Overweight/drug therapy*
		                        			;
		                        		
		                        			Insulin Resistance
		                        			;
		                        		
		                        			Obesity/drug therapy*
		                        			;
		                        		
		                        			China
		                        			;
		                        		
		                        			DNA/therapeutic use*
		                        			
		                        		
		                        	
10.Outcomes at discharge of preterm infants born <34 weeks' gestation.
Ning Xin LUO ; Si Yuan JIANG ; Yun CAO ; Shu Jun LI ; Jun Yan HAN ; Qi ZHOU ; Meng Meng LI ; Jin Zhen GUO ; Hong Yan LIU ; Zu Ming YANG ; Yong JI ; Bao Quan ZHANG ; Zhi Feng HUANG ; Jing YUAN ; Dan Dan PAN ; Jing Yun SHI ; Xue Feng HU ; Su LIN ; Qian ZHAO ; Chang Hong YAN ; Le WANG ; Qiu Fen WEI ; Qing KAN ; Jin Zhi GAO ; Cui Qing LIU ; Shan Yu JIANG ; Xiang Hong LIU ; Hui Qing SUN ; Juan DU ; Li HE
Chinese Journal of Pediatrics 2022;60(8):774-780
		                        		
		                        			
		                        			Objective: To investigate the incidence and trend of short-term outcomes among preterm infants born <34 weeks' gestation. Methods: A secondary analysis of data from the standardized database established by a multicenter cluster-randomized controlled study "reduction of infection in neonatal intensive care units (NICU) using the evidence-based practice for improving quality (REIN-EPIQ) study". This study was conducted in 25 tertiary NICU. A total of 27 192 infants with gestational age <34 weeks at birth and admitted to NICU within the first 7 days of life from May 2015 to April 2018 were enrolled. Infants with severe congenital malformation were excluded. Descriptive analyses were used to describe the mortality and major morbidities of preterm infants by gestational age groups and different admission year groups. Cochran-Armitage test and Jonckheere-Terpstra test were used to analyze the trend of incidences of mortality and morbidities in 3 study-years. Multiple Logistic regression model was constructed to analyze the differences of outcomes in 3 study-years adjusting for confounders. Results: A total of 27 192 preterm infants were enrolled with gestational age of (31.3±2.0) weeks at birth and weight of (1 617±415) g at birth. Overall, 9.5% (2 594/27 192) of infants were discharged against medical advice, and the overall mortality rate was 10.7% (2 907/27 192). Mortality for infants who received complete care was 4.7% (1 147/24 598), and mortality or any major morbidity was 26.2% (6 452/24 598). The incidences of moderate to severe bronchopulmonary dysplasia, sepsis, severe intraventricular hemorrhage or periventricular leukomalacia, proven necrotizing enterocolitis, and severe retinopathy of prematurity were 16.0% (4 342/27 192), 11.9% (3 225/27 192), 6.8% (1 641/24 206), 3.6% (939/25 762) and 1.5% (214/13 868), respectively. There was a decreasing of the overall mortality (P<0.001) during the 3 years. Also, the incidences for sepsis and severe retinopathy of prematurity both decreased (both P<0.001). However, there were no significant differences in the major morbidity in preterm infants who received complete care during the 3-year study period (P=0.230). After adjusting for confounders, infants admitted during the third study year showed significantly lower risk of overall mortality (adjust OR=0.62, 95%CI 0.55-0.69, P<0.001), mortality or major morbidity, moderate to severe bronchopulmonary dysplasia, sepsis and severe retinopathy of prematurity, compared to those admitted in the first study year (all P<0.05). Conclusions: From 2015 to 2018, the mortality and major morbidities among preterm infants in Chinese NICU decreased, but there is still space for further efforts. Further targeted quality improvement is needed to improve the overall outcome of preterm infants.
		                        		
		                        		
		                        		
		                        			Bronchopulmonary Dysplasia/epidemiology*
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		                        			Gestational Age
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		                        			Humans
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		                        			Infant
		                        			;
		                        		
		                        			Infant Mortality/trends*
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		                        			Infant, Newborn
		                        			;
		                        		
		                        			Infant, Premature
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		                        			Infant, Premature, Diseases/epidemiology*
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		                        			Patient Discharge
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		                        			Retinopathy of Prematurity/epidemiology*
		                        			;
		                        		
		                        			Sepsis/epidemiology*
		                        			
		                        		
		                        	
            
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