Objective:To analyze the predictive factors associated with late-onset sepsis(LOS) in very low birth weight infants,and to develop a risk prediction score scale applicable to these infants three days postnatal.This will provide valuable insights for early diagnosis and timely intervention.Methods:Very low birth weight infants admitted to the Children's Hospital of Fudan University from January 1,2022,to June 30,2024,were selected as research subjects.These infants were categorized into two groups:the LOS group and the non-LOS group,based on whether they developed LOS.LASSO regression analysis,alongside univariate and multivariate regression analyses,was employed to identify predictive factors for LOS in this population.A Logistic model was constructed using the optimal combination of predictive variables,and a risk assessment scale was subsequently developed.The prediction performance of the model was evaluated using the Hosmer-Lemeshow chi-square test and the receiver operating characteristic curve.Results:A total of 444 cases of very low birth weight infants were included,of which 185 had LOS and 259 did not.After screening the variables,seven independent factors were included into the model:birth weight,gestational age,tracheal intubation,abnormal skin color,abdominal distension,elevated C-reactive protein levels,and right hand perfusion index.A predictive scoring scale was developed based on the regression coefficients of each variable,with corresponding risk scores assigned as follows:1,4,3,2,1,1,and 2; a score of ≥3.5 indicated high-risk groups.The Hosmer-Lemeshow test results demonstrated that χ2 = 7.602( P = 0.473).The area under the receiver operating characteristic curve was 0.792 ( P<0.001),with a sensitivity of 73.5% and specificity of 71.0%. Conclusion:The risk score scale developed in this study exhibits significant predictive capability,providing valuable insights for clinical medical personnel to assess the risk of LOS in very low birth weight infants during the early postnatal period.

Objective:To analyze the predictive factors associated with late-onset sepsis(LOS) in very low birth weight infants,and to develop a risk prediction score scale applicable to these infants three days postnatal.This will provide valuable insights for early diagnosis and timely intervention.Methods:Very low birth weight infants admitted to the Children's Hospital of Fudan University from January 1,2022,to June 30,2024,were selected as research subjects.These infants were categorized into two groups:the LOS group and the non-LOS group,based on whether they developed LOS.LASSO regression analysis,alongside univariate and multivariate regression analyses,was employed to identify predictive factors for LOS in this population.A Logistic model was constructed using the optimal combination of predictive variables,and a risk assessment scale was subsequently developed.The prediction performance of the model was evaluated using the Hosmer-Lemeshow chi-square test and the receiver operating characteristic curve.Results:A total of 444 cases of very low birth weight infants were included,of which 185 had LOS and 259 did not.After screening the variables,seven independent factors were included into the model:birth weight,gestational age,tracheal intubation,abnormal skin color,abdominal distension,elevated C-reactive protein levels,and right hand perfusion index.A predictive scoring scale was developed based on the regression coefficients of each variable,with corresponding risk scores assigned as follows:1,4,3,2,1,1,and 2; a score of ≥3.5 indicated high-risk groups.The Hosmer-Lemeshow test results demonstrated that χ2 = 7.602( P = 0.473).The area under the receiver operating characteristic curve was 0.792 ( P<0.001),with a sensitivity of 73.5% and specificity of 71.0%. Conclusion:The risk score scale developed in this study exhibits significant predictive capability,providing valuable insights for clinical medical personnel to assess the risk of LOS in very low birth weight infants during the early postnatal period.

Objective To develop a comprehensive family integrated care program for very low birth weight in-fants and to investigate the initial application effect of the program.Methods The family integrated care program for very low birth weight infants was developed using semi-structured interviews,a comprehensive literature review,and an expert consensus.A non-synchronous controlled trial was subsequently carried out.Between January and May 2023,35 participants accompanied by their parents for a minimum of 6 hours daily over a span of at least 3 days,were consecutively selected as an intervention group.Between January and May 2022,35 participants in the control group were treated with routine closed neonatal intensive care unit model.The application effect of the pro-gram on the clinical outcomes of very low birth weight infants was assessed,such as weight gain rate during hospi-talization,breastfeeding days,incidence of late-onset sepsis,incidence of extrauterine growth restriction at discharge,TIMP level at corrected gestational age of 37 weeks and hospitalization days.Results The authority coefficient of the 8 invited experts specializing in neonatal nursing and nursing management was 0.925.A comprehensive pro-gram was developed,consisting of 2 stages—preparation and implementation,and addressing 7 key themes:staff team formation and training,environmental support,assessment,parental training,family-integrated care implementation,peer support,and comprehensive communication.No shedding cases occurred during the application of the program.The outcomes indicated that the intervention group experienced a higher rate of weight gain and more days of breast-feeding compared to the control group,and the incidence of extrauterine growth retardation upon discharge was also lower,with statistically significant differences(all P＜0.05).However,there were no significant differences in other clinical outcomes(all P＞0.05).Conclusion The family integrated care program for very low birth weight infants de-veloped in this study is scientifically grounded,comprehensive,and practical.The implementation of this program can promote the weight gain and breastfeeding among very low birth weight infants,reduce the occurrence of extrauter-ine growth restriction upon discharge,and does not increase the incidence of late-onset sepsis.

Objective To develop a comprehensive family integrated care program for very low birth weight in-fants and to investigate the initial application effect of the program.Methods The family integrated care program for very low birth weight infants was developed using semi-structured interviews,a comprehensive literature review,and an expert consensus.A non-synchronous controlled trial was subsequently carried out.Between January and May 2023,35 participants accompanied by their parents for a minimum of 6 hours daily over a span of at least 3 days,were consecutively selected as an intervention group.Between January and May 2022,35 participants in the control group were treated with routine closed neonatal intensive care unit model.The application effect of the pro-gram on the clinical outcomes of very low birth weight infants was assessed,such as weight gain rate during hospi-talization,breastfeeding days,incidence of late-onset sepsis,incidence of extrauterine growth restriction at discharge,TIMP level at corrected gestational age of 37 weeks and hospitalization days.Results The authority coefficient of the 8 invited experts specializing in neonatal nursing and nursing management was 0.925.A comprehensive pro-gram was developed,consisting of 2 stages—preparation and implementation,and addressing 7 key themes:staff team formation and training,environmental support,assessment,parental training,family-integrated care implementation,peer support,and comprehensive communication.No shedding cases occurred during the application of the program.The outcomes indicated that the intervention group experienced a higher rate of weight gain and more days of breast-feeding compared to the control group,and the incidence of extrauterine growth retardation upon discharge was also lower,with statistically significant differences(all P＜0.05).However,there were no significant differences in other clinical outcomes(all P＞0.05).Conclusion The family integrated care program for very low birth weight infants de-veloped in this study is scientifically grounded,comprehensive,and practical.The implementation of this program can promote the weight gain and breastfeeding among very low birth weight infants,reduce the occurrence of extrauter-ine growth restriction upon discharge,and does not increase the incidence of late-onset sepsis.

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.

A mother's breast milk is the best nourishing food for infants.No only does it provide sufficient nutrition,but it is also well suited to infants'immature digestive function,thus promoting their growth and organ maturation.A 6-month period of breastfeeding can provide infants with the necessary nutrients,energy,and fluids.The best feeding method is direct breastfeeding from the breast to an infant,yet the difficulties involved in breastfeeding should not be overlooked.Approximately 1/3 the mothers who are performing direct breastfeeding from the breast to an infant experience moderate or higher levels of feeding difficulties.Difficulties in direct breastfeeding from the breast to an infant can lead to decreased feeding efficiency,hamper the growth and development of infants,and affect the emotional communication between mothers and infants.At present,many relevant studies have focused on topics such as the mothers'psychology,family and social support,and the immature development of infants.However,little research has been done to investigate suck-swallow-breathe,a physiological mechanism that infants undertake during the process of direct breastfeeding from the breast to an infant.In this paper,we summarized published literature,research parameters,measurement instruments,and physical intervention methods of the suck-swallow-breathe mechanism in infants,aiming to facilitate the early identification of breastfeeding difficulties and the subsequently provision of early intervention measures and to promote the early identification of neurodevelopmental abnormalities and other developmental abnormalities in infants.