Risk factors for failure of nasal high frequency oscillatory ventilation as initial therapy in very low birth weight infants with respiratory distress syndrome / 中国新生儿科杂志

Objective:To study the risk factors of failure using nasal high frequency oscillatory ventilation (nHFOV) as initial therapy in the treatment of respiratory distress syndrome (RDS) in very low birth weight infants (VLBWIs).Methods:From January 2018 to December 2021, VLBWIs with RDS initially supported by nHFOV in NICU of our hospital were retrospectively analyzed. They were assigned into success and failure groups according to the ventilation efficacy. Demographic data and clinical outcomes of the two groups were compared. Risk factors of initial nHFOV failure were analyzed using binary Logistic regression method.Results:A total of 135 infants were included, including 103 in the success group and 32 in the failure group. The initial nHFOV failure rate was 23.7%. The failure group had lower pH (7.26±0.09 vs. 7.33±0.08) and PaO 2 [61.0 (49.6, 77.2) mmHg vs. 83.6 (64.4, 99.0) mmHg] than the success group ( P<0.05) and higher PaCO 2 than the success group [49.0 (42.3, 58.1) mmHg vs. 43.4 (36.0, 50.0) mmHg] ( P<0.05). Using PaCO 2 as predictor, the area under the curve (AUC) was 0.682 (95% CI 0.575-0.788) and the cut-off value was 44.8 mmHg for nHFOV failure and the AUC was 0.716 (95% CI 0.615-0.817) and the cut-off value was 67.1 mmHg for nHFOV success. The incidences of early onset sepsis (EOS), shock within 3 d and hemodynamically significant patent ductus arteriosus (hsPDA) in the failure group were significantly higher than the success group (40.6% vs. 7.8%, 53.1% vs. 2.9%, 31.3% vs. 13.6%, P<0.05, respectively). Binary logistic regression analysis found that PaO 2<67.1 mmHg ( OR=5.458,95% CI 1.730-17.220) on the first blood gas analysis and shock within 3 d ( OR=26.585,95% CI 3.854-183.396) were independent risk factors for initial nHFOV failure ( P<0.05). Conclusions:The failure of initial nHFOV is correlated with the first blood gas parameters, EOS, hsPDA and shock within 3 d. Shock within 3 d and low PaO 2(<67.1 mmHg) were independent risk factors for initial nHFOV failure.

The incidence and risk factors of early hyperglycemia in extremely preterm infants / 中国新生儿科杂志

Objective:To study the incidence and risk factors of early hyperglycemia in extremely preterm infants (EPIs).Methods:From January 2018 to December 2021, EPIs with gestational age (GA) <28 w born in our hospital and admitted to the neonatal department were retrospectively studied. According to the occurrence of early hyperglycemia (within 1 w after birth), the infants were assigned into hyperglycemia group and non-hyperglycemia group. Univariate and logistic regression were used to analyze the risk factors of early hyperglycemia in EPIs.Results:A total of 218 cases of EPIs were enrolled, including 70 (32.1%) in the hyperglycemia group and 148 (67.9%) in the non-hyperglycemia group. The incidence of early hyperglycemia in EPIs with GA<25 w was 10/20 and 11/16 in EPIs with birth weight (BW) ≤700 g. The GA and BW of the hyperglycemia group were significantly lower than the non-hyperglycemia group ( P<0.05). More infants in the hyperglycemia group had 1-min and 5-min Apgar≤7 than the non-hyperglycemia group ( P<0.05). Logistic regression analysis showed that increased BW ( OR=0.995, 95% CI 0.993~0.997, P<0.05) was a protective factor for early hyperglycemia in EPIs, while male gender ( OR=2.512,95% CI 1.232~5.123, P<0.05), vasoactive drug use during the first week of life ( OR=2.687, 95% CI 1.126~6.414, P<0.05), maternal hypertension during pregnancy ( OR=14.735, 95% CI 1.578~137.585, P<0.05) were risk factors for early hyperglycaemia in EPIs. Conclusions:Early hyperglycemia are common among EPIs. Low BW, male gender, vasoactive drug use during the first week of life and maternal hypertension during pregnancy may increase the risk of early hyperglycemia.

Changes of peripheral perfusion index in very low birth weight infants with late-onset sepsis / 中国小儿急救医学

Objective:To analyze the changes of peripheral perfusion index (PPI) with late-onset sepsis (LOS) in very low birth weight infants during hospitalization.Methods:Very low birth weight infants admitted to the neonatal intensive care unit of Children′s Hospital of Fudan University from August 1, 2021 to August 31, 2022 were consecutively included.Infants with admission age ≥three days and unstable circulation, or positive blood culture within three days after birth were excluded.From the day of admission, the PPI values of the right hand and either foot of the infants were measured with Masimo SET Radical-7 everyday while whether LOS occurred during hospitalization was observed.The mean PPI curve of very and extremely low birth weight infants without LOS was plotted.For those with LOS confirmed by blood culture, the PPI change trajectory three days before and after the occurrence of LOS was drawn, and the change trend of PPI before the occurrence of LOS was analyzed by trend chi-square test.Non-parametric test was used to analyze the effect of LOS on pre- and post-ductal PPI values.Results:A total of 107 very low birth weight infants were included in the final analysis.Among them, there were 11 infants confirmed as LOS by blood culture, 37 infants diagnosed as clinical LOS, and 59 infants without LOS.Pre-and post-ductal PPI values of very low birth weight infants without LOS were 2.06±1.30 and 1.72±0.92, respectively; those with clinical LOS were 1.90±0.94 and 1.58±0.83, respectively; those with LOS confirmed by blood culture were 1.92±1.11 and 1.62±0.82, respectively.For infants with LOS confirmed by blood culture, the pre-and post-ductal PPI values showed a continuous downward trend during three days before the onset of disease, with the lowest PPI values on the first day before the diagnosis of blood culture.The downtrend of pre-ductal PPI was statistically significant ( χtrend2=5.57, P<0.05). Conclusion:The PPI value of very low birth weight infants show a downward trend when LOS occurs.It should be observed dynamically in clinical practice, which is helpful to suspect or identify LOS as early as possible.

Risk factors for pulmonary hemorrhage in very low and extremely low birth weight infants / 国际儿科学杂志

Objective:To analyze the risk factors of pulmonary hemorrhage in very low and extremely low birth weight, and to provide reference for the treatment of pulmonary hemorrhage.Methods:The clinical data of very low and extremely low birth weight infants hospitalized in Qingdao Women and Children′s Hospital NICU from January 2017 to December 2021 were retrospectively analyzed.Eighty-six infants who were diagnosed with pulmonary hemorrhage were selected as the pulmonary hemorrhage group, and two hundred and two infants without pulmonary hemorrhage were selected as the control group.The differences of the survival rates, complications and parameters of platelet between the two groups were compared, and the risk factors of pulmonary hemorrhage by multivariate Logistic regression were analyzed.Results:The survival rate of pulmonary hemorrhage group and control group were 65.1%(56/86) and 90.1%(182/202), respectively.The survival rate of control group was significantly higher than that in the pulmonary hemorrhage group( χ2=26.241, P<0.01). There was no significant difference in fluid intake between the two groups within three days after birth( t=0.936, 1.811, 1.840, P=0.350, 0.073, 0.069). The multivariate Logistic regression analysis showed hemodynamically significant patent ductus arteriosus( OR=2.304, 95% CI: 0.213~1.564, P=0.010), disseminated intravascular coagulation( OR=3.143, 95% CI: 0.061~2.521, P=0.028), thrombocytopenia( OR=0.991, 95% CI: -0.015~-0.005, P=0.001) and low mean platelet volume( OR=0.337, 95% CI: -1.657~-0.739, P=0.001) were the risk factors of pulmonary hemorrhage. Conclusion:Hemodynamically significant patent ductus arteriosus, disseminated intravascular coagulation, thrombocytopenia and low mean platelet volume were associated with increased risks for pulmonary hemorrhage in very low and extremely low birth weight.These risk factors should be actively monitored and treated, which is helpful to early identify and prevent pulmonary hemorrhage.

Analysis of Related Factors Affecting the Risk Assessment of Death during Hospitalization of Extremely Low Birth Weight Infants / 中山大学学报(医学科学版)

ObjectiveTo explore the influencing factors of different scores on predicting death risk of extremely low birth weight infants （ELBWI）. MethodsA total of 186 cases of ELBWI admitted by the Children's Hospital affiliated to Nanjing Medical University and the Lishui Branch of the Affiliated Zhongda Hospital of Southeast University were admitted from January 1， 2019 to January 1， 2021， and 125 ELBWIs were finally included after screening by inclusion and exclusion criteria. There were 47 cases in the death group and 78 cases in the survival group. General data and the items of score for neonatal acute physiology version Ⅱ （SNAP-Ⅱ）， simplified version of the score for neonatal acute physiology perinatal extension （SNAPPE-Ⅱ）， clinical risk index for babies （CRIB）， clinical risk index for babies Ⅱ （CRIB-Ⅱ） and the national critical illness score （NCIS） were collected. Univariate and multivariate analysis was performed and nomogram was evaluated using receiver operating characteristic curve （ROC）. ResultsIt was found that systolic blood pressure， maximum inhaled oxygen concentration， BE value and birth weight were important factors in ELBWI mortality risk assessment ［systolic blood pressure OR： 0.968， 95%CI： 0.938-0.999， P=0.043； maximum inhaled oxygen concentration OR： 1.020， 95%CI： 1.006-1.034， P=0.006； BE OR： 0.868， 95%CI： 0.786-0.959， P=0.005； birth weight OR： 0.994， 95%CI： 0.991-0.997， P=0.000］. ROC showed that the area under the curve of the above four variables is 0.71， and the 95% confidence interval is 0.610-0.799， which is better than CRIB score. ConclusionLower systolic blood pressure， higher inhaled oxygen concentration， higher BE and lower birthweight are important influencing factors to predict the death risk of ELBWI. The above four items should be included in the newly developed score assessment to obtain a more effective ELBWI prediction system.

Mortalidad en recién nacidos de muy bajo peso al nacer en la Red Neonatal NEOCOSUR: causalidad y temporalidad / Mortality in very low birth weight (VLBW) infants in South American NEOCOSUR Neonatal Network: timing and causes

Introducción. La mortalidad de los recién nacidos de muy bajo peso de nacimiento (RNMBPN) se ha mantenido en ~26 % en los últimos 16 años en la Red Neonatal NEOCOSUR. Objetivo. Determinar la causa de muerte de los RNMBPN y su temporalidad en el período 20072016 en la Red Neonatal NEOCOSUR. Población y métodos. Estudio observacional de cohorte multicéntrica; análisis retrospectivo de datos obtenidos prospectivamente. Se incluyeron recién nacidos entre 24 y 31+6 semanas de edad gestacional y peso de nacimiento de 500-1500 g, en 26 centros de la Red Neonatal NEOCOSUR. Las causas de muerte se analizaron según ocurriera en sala de partos (SP) o durante la estadía en la unidad de cuidados intensivos neonatales (UCIN). La edad posnatal de muerte se determinó a través de análisis de Kaplan-Meier. Resultados. Se incluyeron un total de 11.753 RNMBPN con una mortalidad global del 25,6 %. Las causas de muerte predominantes en SP fueron malformaciones congénitas (43,3 %), enfermedades respiratorias (14,3 %) y prematuridad (11,4 %). Las causas de muerte predominantes en UCIN fueron las respiratorias (24,2 %) e infecciosas (24,1 %). La edad promedio de muerte fue de 10,2 días y mediana de 4 días. El 10,2 % de las muertes ocurrieron en SP; el 21,5 %, durante el primer día; el 52 % ocurrió en los primeros 4 días y el 63,8 %, durante la primera semana de vida. Conclusiones. Se encuentran importantes diferencias en las causas de muerte de RNMBPN según ocurra en SP o en UCIN. Las infecciosas y respiratorias son las más relevantes luego del ingreso a la unidad de cuidados intensivos.

Introduction. Mortality in very low birth weight infants (VLBWIs) has remained at ~26% in the past 16 years in the NEOCOSUR Neonatal Network. Objective. To determine the cause of death of VLBWIs and its temporality in the 2007-2016 period in the NEOCOSUR Neonatal Network. Population and methods. Observational, multicenter cohort study; retrospective analysis of data collected prospectively. Newborn infants born between 24 and 31+6 weeks of gestation age with a birth weight between 500 and 1500 g in the 26 sites of the NEOCOSUR Neonatal Network were included. The causes of death were analyzed depending on whether they occurred in the delivery room (DR) or in the neonatal intensive care unit (NICU). The postnatal age at time of death was determined using the KaplanMeier test. Results. A total of 11 753 VLBWIs were included; overall mortality was 25.6%. The prevailing causes of death in the DR were congenital malformations (43.3%), respiratory diseases (14.3%), and prematurity (11.4%). The prevailing causes of death in the NICU were respiratory diseases (24.2%) and infections (24.1%). The average and median age at death were 10.2 and 4 days, respectively. Also, 10.2% of deaths occurred in the DR; 21.5% on day 1, 52% in the first 4 days, and 63.8% in the first week of life. Conclusions. Important differences were observed in the causes of death of VLBWIs depending on their occurrence in the DR or the NICU. Infectious and respiratory conditions were the most relevant factors following admission to the NICU.

Association Between Antibiotic Overexposure and Adverse Outcomes in Very-Low-Birth-Weight Infants Without Culture-Proven Sepsis or Necrotizing Enterocolitis: A Multicenter Prospective Study

Objectives To explore the associations between higher antibiotic use rates (AURs) and adverse outcomes in very-low-birthweight (VLBW) infants without culture-proven sepsis or necrotizing enterocolitis (NEC) in a multicenter of China. Methods A prospective cohort study was performed on VLBW infants admitted to 24 neonatal intensive care units from January 1, 2018, to December 31, 2018. AUR was calculated as calendar days of antibiotic therapy divided by total hospital days. The composite primary outcome was defned as mortality or severe morbidity, including any of the following: severe neurologic injury, bronchopulmonary dysplasia (BPD), and stage 3 or higher retinopathy of prematurity. Results A total of 1,034 VLBW infants who received antibiotics without culture-proven sepsis or NEC were included in this study. The overall AUR of eligible VLBW infants was 55%, and the AUR of each eligible VLBW infant ranged from 3 to 100%, with a median of 56% (IQR 33%, 86%). After generalized propensity score and logistic regression analysis of 4 groups of VLBW infants with diferent AUR range, infants in the higher quartile AUR, (Q3, 0.57~0.86) and (Q4, 0.87~1.00), had higher odds of composite primary outcome (adjusted OR: 1.81; 95% CI: 1.23–2.67; adjusted OR 2.37; 95% CI: 1.59–3.54, respectively) and BPD (adjusted OR: 3.09; 95% CI: 1.52–6.57; adjusted OR 3.17; 95% CI: 1.56–6.57, respectively) than those in the lowest AUR (Q1). Conclusions Antibiotic overexposure in VLBW infants without culture-proven sepsis or NEC was associated with increased risk of composite primary outcome and BPD. Rational empirical antibiotic use in VLBW infants is urgently needed in China.

Study on the correlation between maternal iron deficiency anemia and ROP in premature or low birth weight infants / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM:To explore the correlation between maternal iron deficiency anemia and retinopathy of prematurity(ROP)in premature infants or low birth weight infants so that to provide possible scientific basis for the prevention and control of ROP.<p>METHODS: This study was a case-control study. The clinical data of 317 premature or low birth weight infants who were diagnosed with ROP and their mothers in our hospital during January 2019 to July 2021 due to ROP screening for the first time(about 30d after birth)were analyzed. The relationship between maternal iron deficiency anemia and ROP and its stages were observed. And the relationship between Hb, blood value characteristics, mean gestational age, gestational weeks, infant birth weight of maternal iron deficiency anemia and ROP stage.<p>RESULTS: There were 235 mothers(74.1%)with iron deficiency anemia, 82 mothers(25.9%)without iron deficiency. Among them, there were 194 mothers(82.6%)with mild anemia according to anemia classification, 119 cases with stage Ⅰ ROP and 75 cases with stage Ⅱ ROP. There were 39 mothers(16.6%)with moderate anemia, 8 cases with stage Ⅱ ROP, 22 cases with stage Ⅲ ROP and 9 cases with stage Ⅳ ROP. There were 2 mothers(0.9%)of severe anemia, all of whom had stage Ⅳ ROP. No children with stage Ⅴ or threshold ROP and mothers with very severe anemia were found in this study. Compared with mothers with iron deficiency anemia, premature infants or low birth weight infants with normal iron levels were more likely to have stage Ⅰ ROP, but stage Ⅱ ROP was more pronounced in mothers with iron deficiency anemia, and the differences were statistically significant(all <i>P</i><0.05). Stage Ⅲ and stage Ⅳ ROP was not observed in the mothers with normal serum iron, but was 9.4% and 4.7% in the mothers with iron deficiency anemia, respectively. The differences were statistically significant(<i>P</i><0.05). Stage Ⅴ and threshold lesions ROP was not observed in preterm or low birth weight infants in mothers with normal serum iron values or iron deficiency anemia. Compared with mothers with normal iron levels, mothers with iron deficiency anemia had significantly lower hemoglobin, hematocrit, mean erythrocyte volume, serum iron and ferritin levels. At the same time, the higher mean gestational age, mean shorter gestational week and mean lower birth weight in the mothers with iron deficiency anemia, and the differences were statistically significant(all <i>P</i><0.05).<p>CONCLUSION:Pregnant iron-deficiency anemia is associated with the occurrence and development of ROP in premature or low birth weight infants. The more severe maternal anemia, the higher maybe stage of ROP. Therefore, monitoring and supplementation of iron during pregnancy can effectively prevent and reduce the risk of ROP.

Kangaroo care for mothers and fathers of premature infants: a non-inferiority study / 中国实用护理杂志

Objective:To explore the effect of kangaroo care for mothers and fathers on preterm infants' heart rate, blood oxygen, body temperature and so on, and to explore the influence of kangaroo care on the anxiety of the implementers.Methods:Totally 132 cases of preterm infants and their parents from September 2017 to September 2018 in Shengjing Hospital of China Medical University were randomly divided into mother group (67 cases) and father group (65 cases) by envelope method. The intervention lasted for two hours. State Anxiety Inventory(SAI) was used to evaluate the anxiety status of the implementers before and after the intervention, and the heart rate, oxygen saturation and body temperature of preterm infants were recorded 15 minutes before and at the end of the intervention.Results:Before the intervention, the SAI scores of the two groups were 35.00(30.00, 45.00) in the mother group and 33.00(30.00, 43.00) in the father group, with no significant difference ( Z value was -0.645, P>0.05); after the intervention, the SAI score of the mother group was 29.00(23.00, 32.00) and that of the father group was 25.00(21.50, 28.00), with significant difference ( Z value was -3.518, P<0.01). Before and after the intervention, the changes of heart rate ( δ1=- 4.25), blood oxygen saturation ( δ2=1.45), body temperature ( δ3=0.20) of preterm infants before and after the intervention were tested by non inferiority test, and the difference was statistically significant ( t values were -6.370, 5.343, 12.612, P<0.01). Conclusions:The effect of kangaroo care on preterm infants' heart rate, blood oxygen and body temperature are no less than that of mothers. Compared with mother, kangaroo care can reduce father's anxiety better.

Early application of non-invasive high frequency oscillatory ventilation in very low birth weight infants with respiratory distress syndrome / 中华实用儿科临床杂志

Objective:To observe the clinical efficacy and safety of non-invasive high frequency oscillatory ventilation(NHFOV) on the early respiratory support in very low birth weight infants with respiratory distress syndrome(RDS).Methods:It was a prospective cohort study involving very low birth weight infants with RDS admitted to the Central Hospital of Chongqing Three Gorges from January 2017 to January 2020 with a gestational age of 28-32 weeks.According to the applied non-invasive respiratory support, very low birth weight infants with NRDS were divided into control group[continuous positive airway pressure (CPAP) group]and observation group(NHFOV group). Therapeutic effect, complications and adverse effects between 2 groups were compared.Results:A total of 78 very low birth weight infants with RDS were included, among which 38 cases were supported with NHFOV group and 40 cases were CPAP group.(1) Therapeutic efficacy: there were no significant differences in the use of pulmonary surfactant and death rate between 2 groups (all P>0.05). Compared with the CPAP group, patients in the NHFOV group had significantly lower incidence of non-invasive ventilation failure(4 cases vs.13 cases), duration of non-invasive ventilation [(7.60±1.68) days vs. (10.75±2.38) days], duration of oxygen exposure [(12.34±2.66) days vs.(17.20±4.36) days] and times of apnea [(1.68±1.57) times/day vs.(4.80±2.60) times/day] (all P<0.05). There was no significant difference in the incidence of complications between 2 groups (all P>0.05). (2) Adverse events: compared with CPAP group, patients in the NHFOV group had significantly lower incidence of abdominal distension [13 cases(34.2%) vs. 25 cases (62.5%)], delayed duration of respiratory secretion disappearance [(12.65±2.33) days vs.(7.87±2.70) days], low viscosity of secretions [thin sputum, 31 cases (81.6%) vs.22 cases (55.0%); ropy sputum, 7 cases (18.4%) vs.18 cases(45.0%)], and less airway obstruction [2 cases (5.2%) vs.15 cases (37.5%)] (all P<0.05). No significant difference in the incidence of nasal septum injury was detected between 2 groups (1 case vs.0) ( P>0.05). Conclusions:NHFOV is safe and effective in the early application of NRDS in very low birth weight infants with RDS, which has less adverse events.It is expected to be used in the treatment of children with frequent apnea and a large number of respiratory secretions that is prone to obstruction.

Progress on the correlation between neonatal critical illness score and neurological prognosis of very low birth weight infants / 国际儿科学杂志

Neonatal critical illness score is a scoring system that assesses the severity of neonatal disease and predicts the risk of death.However, it also has an important reference value for the evaluation of neurological prognosis.Since various neonatal critical scores have different assessment contents, the evaluation performance of neurological prognosis is also different.Score for neonatal acute physiology, score for neonatal acute physiology, version-Ⅱ, score for neonatal acute physiology, perinatal extension, version-Ⅱ, nursery neurobiological risk score, et al, have good predictive value for long-term neurological prognosis.The predictive value of clinical risk index for babies, clinical risk index for babies and version-Ⅱ remains unproven.This article reviews the correlation between neonatal critical illness score and the neurological prognosis of very low birth weight infants(VLBWI), in order to provide references for the early identification and prognositic judgement of VLBWI nerve damage.

Progress in the treatment of patent ductus arteriosus in extremely low birth weight infants / 国际儿科学杂志

With the progress of perinatal medicine and the improvement of cure rate in preterm infants, the diagnosis and treatment of patent ductus arteriosus in extremely low birth weight infants is a great challenge for neonatal medicine.Continuous left-to-right shunt through catheters can lead to systemic hypotension, pulmonary perfusion, increased left ventricular volume load, prolonged mechanical ventilation, and increased risk of complications and death such as pulmonary hemorrhage, bronchopulmonary dysplasia, necrotizing enterocolitis, and intraventricular hemorrhage.Conservative treatment is still the first choice and drug treatment is not completely effective, while the long-term impact of both on newborns is still unclear, which need a reasonable assessment of the pros and cons.Surgical ligation can improve cardio-pulmonary function, but the indication and time of the arterial catheter are also controversial for its self-closing, thus more evidence-based studies are needed.We review the current management status and controversy of patent ductus arteriosus in extremely low birth weight infants to explore the scientific and effective clinical measures.

Cognitive Outcomes of Children with Very Low Birth Weight at 3 to 5 Years of Age

Clinical analysis of retinopathy of prematurity in preterm infants with very low birth weight / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To analyze the clinical characteristics of retinopathy of prematurity(ROP)in preterm infants with very low birth weight. <p>METHODS: A retrospective analysis was made of 3 121 premature infants who were admitted to the ophthalmic clinic and neonatal department of our hospital from December 2009 to June 2018 and underwent fundus examination. There were 1 862 males and 1 259 females. Among them, there were 400 premature infants with very low birth mass whose body mass was less than 1 500g. 191 males and 209 females. To compare the detection rate of ROP, gestational age, gender ratio, diagnosis time of ROP, severity of ROP and prevalence of other eye diseases, among different birth quality groups in preterm infants with extremely low birth mass.<p>RESULTS: In this study, 3 121 premature infants were screened, and the ROP detection rate was 8.2%(255/3 121). There were 400 premature infants with very low birth mass with a body mass less than 1 500g, ROP detection rate was 23.8%(95/400), stage 1-2 lesions that do not require treatment were 93.7%(89/95), pre-threshold and threshold lesions were 3.2%(3/95), stage 4-5 lesions were 3.2%(3/95). ROP detection rates of birth weight(g)<1 000, 1 000-1 499, ≥1 500, were: 25.0%, 23.7%, 5.9%, respectively. There were statistically significant differences in gestational age, ROP diagnostic time, between different birth weight groups(<i>P</i><0.001). There were significant differences in the severity of ROP among the groups with birth weight <1 000g, 1 000-1 499g and ≥ 1 500g. But, there was no significant difference in the severity of ROP between the group with birth weight 1 000-1 499g and the group with birth weight ≥1 500g(<i>P</i>>0.05). There was no statistical difference in the incidence of other eye diseases in different birth weight groups(<i>P</i>>0.05).<p>CONCLUSION: The lower of birth weight, with the higher of incidence of ROP. The severity of ROP in preterm infants with birth weight <1 000g was significantly higher than that of preterm infants with birth weight≥1 000g. Ophthalmology should combine obstetrics and neonatology to reduce the incidence of very low birth weight premature infants, and improve the compliance of screening and follow-up of retinopathy of very low birth weight premature infants, which is an important way to reduce the blindness caused by ROP.

Change of BMI in catch-up growth of low birth weight infants aged 0-24 months / 上海预防医学

Objective To investigate the changes and characteristics of body mass index (BMI) of low birth weight infants during catch-up growth within 24 months of life. Methods Using the birth cohort method, 126 low birth weight children (birth weight less than 2 500 g) among the registered and permanent born in Jiading District from January 2016 to December 2016, were enrolled in the study voluntarily.According to the calculation of birth weight and gestational week, 73 children were included in the preterm appropriate for gestational age group and 53 in the full-term small for gestational age group.105 children with gestational age of 37-41 weeks and birth weight of 2 500-3 999 g were included as the control group.The differences of BMI mean and standard deviation were compared between 0-24 months old in three groups, and the changes of BMI curve analyzed between 0-24 months old in boys and girls. Results ① There were 231 infants investigated, who were composed by 111 boys and 120 girls; ② The BMI of the two groups of low birth weight infants at birth and at 2 months old were lower than those of the control group.There was no significant difference between the BMI of preterm appropriate for gestational age group and the control group since the age of 4 months.The BMI of the term small for gestational age group was less than the other two groups between 4 and 18 months of age, the difference was statistically significant (P < 0.05);③ The BMI index of the three groups showed a rapid rise after birth.It peaked at 4-6 months of age, and the BMI value of 7-9 months of age began to fall.Preterm appropriate for gestational age group infants caught up with the BMI of normal-weight infants at 6 months of age.Until the age of 24 months, the BMI of small for gestational age group was still different from normal weight infants, but the difference between the three groups decreased.The rising curves of BMI between boys and girls were similar, but the peak of preterm appropriate for gestational age group girls was lengthened. Conclusion There is a significant catch-up growth for low birth weight infants aged 0-24 months, having a similar trend of normal infants in the late stage.It is necessary to deliver proper breeding education and intervention to the low birth weight infants in their early stages.

Clinical analysis of retinopathy of prematurity in preterm infants with very low birth weight / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To analyze the clinical characteristics of retinopathy of prematurity(ROP)in preterm infants with very low birth weight. <p>METHODS: A retrospective analysis was made of 3 121 premature infants who were admitted to the ophthalmic clinic and neonatal department of our hospital from December 2009 to June 2018 and underwent fundus examination. There were 1 862 males and 1 259 females. Among them, there were 400 premature infants with very low birth mass whose body mass was less than 1 500g. 191 males and 209 females. To compare the detection rate of ROP, gestational age, gender ratio, diagnosis time of ROP, severity of ROP and prevalence of other eye diseases, among different birth quality groups in preterm infants with extremely low birth mass.<p>RESULTS: In this study, 3 121 premature infants were screened, and the ROP detection rate was 8.2%(255/3 121). There were 400 premature infants with very low birth mass with a body mass less than 1 500g, ROP detection rate was 23.8%(95/400), stage 1-2 lesions that do not require treatment were 93.7%(89/95), pre-threshold and threshold lesions were 3.2%(3/95), stage 4-5 lesions were 3.2%(3/95). ROP detection rates of birth weight(g)<1 000, 1 000-1 499, ≥1 500, were: 25.0%, 23.7%, 5.9%, respectively. There were statistically significant differences in gestational age, ROP diagnostic time, between different birth weight groups(<i>P</i><0.001). There were significant differences in the severity of ROP among the groups with birth weight <1 000g, 1 000-1 499g and ≥ 1 500g. But, there was no significant difference in the severity of ROP between the group with birth weight 1 000-1 499g and the group with birth weight ≥1 500g(<i>P</i>>0.05). There was no statistical difference in the incidence of other eye diseases in different birth weight groups(<i>P</i>>0.05).<p>CONCLUSION: The lower of birth weight, with the higher of incidence of ROP. The severity of ROP in preterm infants with birth weight <1 000g was significantly higher than that of preterm infants with birth weight≥1 000g. Ophthalmology should combine obstetrics and neonatology to reduce the incidence of very low birth weight premature infants, and improve the compliance of screening and follow-up of retinopathy of very low birth weight premature infants, which is an important way to reduce the blindness caused by ROP.

Investigation on the influence of periodontal disease in gestation on small for gestational age / 口腔疾病防治

Objective @#The purpose of this study was to investigate the relevant social and environmental factors affecting the occurrence of periodontal diseases during pregnancy in pregnant women and to analyze the influence of the periodontal status of women in the second trimester of pregnancy on small for gestational age (SGA) delivery.@*Methods@# A total of 215 pregnant women were enrolled in this study in the Department of Periodontology of the West China Hospital of Stomatology of Sichuan University from May 2015 to May 2018. Periodontal parameters, such as bleeding on probing (BOP), probing depth (PD) and clinical attachment loss (CAL), were recorded at 16-24 weeks of gestational age. Subjects were divided into the periodontitis (n=32) group, gingivitis (n=171) group and periodontally healthy (n=12) group according to their periodontal conditions. With the patient′s informed consent, the patient decided whether to receive periodontal treatment. Basic and socioeconomic information was collected through questionnaires. After delivery, subjects were divided into the SGA group and non-SGA group according to their birth results. The periodontal clinical indicators, questionnaire results and delivery results were compared among the groups.@*Results @#The mean PD (P=0.005, r=-0.192) and BOP% (P=0.003, r=-0.199) were negatively correlated with economic income. The family income in the periodontitis group was significantly lower than that in the healthy group and the gingivitis group (P < 0.05). The flossing use rate was significantly higher in the healthy group than that in the gingivitis group (P < 0.05). A total of 106 pregnant women received scaling and root planing, while 109 patients only received oral hygiene instruction. After delivery, SGA occurred in 23 cases (10.7%), and there were no significant difference in SGA incidence among the three groups (P > 0.05). PD ≥ 5 mm% and PD ≥ 4 mm% (P < 0.05) were significantly higher in the SGA group than in the non-SGA group. There was no significant difference in SGA incidence between the treated group and the untreated group (P > 0.05).@*Conclusion@#Family income and dental flossing use have an impact on the incidence of periodontal diseases during pregnancy. The severity of periodontitis in pregnant women is correlated with the incidence of SGA.

Acid Suppression in Neonates: Friend or Foe?

Medications that reduce gastric acid secretion are commonly prescribed for treating gastroesophageal reflux disease. However,several studies have shown that these medications are not very effective, and are associated with adverse effects. This articlediscusses the physiology of gastric acid secretion, clinical indications and pharmacology of acid suppressing medications, andpossible adverse effects of these medications

Correlation of early fluctuation management on intraventricular hemorrhage in very/extremely low birth weight infant / 中国实用护理杂志

Objective@#To investigate the correlation of early incubator temperature fluctuation on intraventricular hemorrhage (IVH) in very/extremely-low birth weight infants (E/VLBW).@*Methods@#From July 2015 to September 2016, 270 patients of hospitalized E/VLBW were included in this study. Temperature changes including incubator temperature and abdominal temperature within 72 hours after admission and routine clinical data were collected,the E/VLBW were divided into IVH group and non-IVH group, as well as the occurrence and grading of IVH. Chi-square test, t test and nonparametric test and logistic regression analysis were used to explore the effect of early incubator temperature fluctuations in E/VLBW on IVH.@*Results@#Of the 270 V/ELBW studied, the incidence of IVH was 24.4% (66/270) , severe IVH(grade Ⅲ and Ⅳ) was 5.2% (14/270) . Univariate analysis showed that in addition to common IVH risk factors such as gestational age, body weight, 1/5 min Apgar score, sex, delivery, hyperglycemia, prenatal steroid and mechanical ventilation, fluctuations of body temperature and incubator temperature were relevant for IVH in E/VLBW (P<0.05) . Logistic regression analysis of the above relevant risk factors showed fluctuations of temperature (OR=1.10) was also an independent risk factor for IVH in E/VLBW(P<0.05) , in addition to sex(OR=0.42) , 1 min Apgar score (OR=0.71) , and hyperglycemia (OR=3.67) .@*Conclusion@#Fluctuation of incubator temperature is an independent risk factor for IVH in V/ELBWI. During centralized nursing and nursing operations, the operating time should be shortened as much as possible to reduce the number of fluctuations of incubators and body temperature to reduce the incidence of IVH and improve the quality of life.