scholarly journals Clinical Evaluations Have Low Sensitivity for Identifying Preterm Infants in a Clinical Trial in a Limited Resource Setting

2019 ◽  
Vol 6 ◽  
pp. 2333794X1985740
Author(s):  
Andrea G. Buchwald ◽  
Ibrahima Teguete ◽  
Moussa Doumbia ◽  
Fadima C. Haidara ◽  
Flanon Coulibaly ◽  
...  

Preterm birth is a primary outcome of interest in maternal vaccination trials but determination of gestational age is challenging in limited-resource settings. This study compares the New Ballard Score and fundal height measurements with the current standard of early ultrasound for sensitivity of predicting preterm birth. A trial of maternal influenza vaccination was conducted in Bamako, Mali. The New Ballard Score and fundal height were collected on 4038 infants born in the trial, ultrasound data were available for 1893 of those infants. New Ballard Score and fundal height were compared, consecutively, to all ultrasound results, early ultrasound results from the first trimester, and the date of last menstrual period for estimation of gestational age. Sensitivity of the New Ballard Score for identifying preterm infants was 0.33 compared with early ultrasound and 0.1 compared with the last menstrual period based estimates of gestational age. Sensitivity of low birth weight alone was 0.43 compared with early ultrasound. New Ballard Score estimated gestational age within 1 week of ultrasound more frequently than fundal height (53% compared with 7.6%, respectively) yet New Ballard Score identified few infants as preterm (1.8% vs 5.8% by early ultrasound), and was biased toward categorizing low birth weight infants and infants requiring hospitalization as preterm. New Ballard Score is not an ideal measure for identifying preterm births in low-resource settings. Despite the time and cost of training required for correct measurement of New Ballard Score, measurement of low birth weight alone performed better than New Ballard Score for identifying preterm infants.

Author(s):  
F. Al Hazzani ◽  
S. Al-Alaiyan ◽  
A. Kattan ◽  
A. Binmanee ◽  
M.B. Jabr ◽  
...  

BACKGROUND: Knowledge on short-term outcomes of preterm infants is important for quality control. Our objective was to analyze the outcomes of very low birth weight infants admitted to our neonatal intensive care unit over a ten years’ period and to compare the results with internationally published data. METHODS: We analyzed the outcome measures for all live born infants with birth weight (BW) of 400–1500 grams and gestational age (GA) of 23–32 weeks born at King Faisal Specialist Hospital & Research Centre between 2006 and 2015. Results were compared to data from three international neonatal networks. RESULTS: During the study period, we admitted 528 infants born at a gestational age of≥23 and≤32 weeks with a very low birth weight (VLBW) of 400–1500 grams. Mean (SD) GA was 28 (2.4) weeks and mean (SD) BW was 1007 (290) grams. A hundred and twenty-nine (24.4%) infants were small for gestational age and major congenital anomalies were present in 56 (10.6 %) infants. The rate of bronchopulmonary dysplasia (BPD) was 24.4 %, necrotizing enterocolitis (NEC) 9.1%, patent ductus arteriosus (PDA) 29.9%, severe intraventricular hemorrhage (IVH)10.8 %, periventricular leukomalacia (PVL) 5.7%, severe retinopathy of prematurity (ROP) 8%, and late-onset sepsis was 18.8%. The incidences of major neonatal outcomes such as CLD, NEC, severe IVH and severe ROP were comparable to the international cohorts. CONCLUSION: In our population of preterm infants, survival rates and complications of prematurity were comparable to international data.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xiaojing Guo ◽  
Xiaoqiong Li ◽  
Tingting Qi ◽  
Zhaojun Pan ◽  
Xiaoqin Zhu ◽  
...  

Abstract Background Despite 15–17 millions of annual births in China, there is a paucity of information on prevalence and outcome of preterm birth. We characterized the outcome of preterm births and hospitalized preterm infants by gestational age (GA) in Huai’an in 2015, an emerging prefectural region of China. Methods Of 59,245 regional total births, clinical data on 2651 preterm births and 1941 hospitalized preterm neonates were extracted from Huai’an Women and Children’s Hospital (HWCH) and non-HWCH hospitals in 2018–2020. Preterm prevalence, morbidity and mortality rates were characterized and compared by hospital categories and GA spectra. Death risks of preterm births and hospitalized preterm infants in the whole region were analyzed with multivariable Poisson regression. Results The prevalence of extreme, very, moderate, late and total preterm of the regional total births were 0.14, 0.53, 0.72, 3.08 and 4.47%, with GA-specific neonatal mortality rates being 44.4, 15.8, 3.7, 1.5 and 4.3%, respectively. There were 1025 (52.8% of whole region) preterm admissions in HWCH, with significantly lower in-hospital death rate of inborn (33 of 802, 4.1%) than out-born (23 of 223, 10.3%) infants. Compared to non-HWCH, three-fold more neonates in HWCH were under critical care with higher death rate, including most extremely preterm infants. Significantly all-death risks were found for the total preterm births in birth weight <  1000 g, GA < 32 weeks, amniotic fluid contamination, Apgar-5 min < 7, and birth defects. For the hospitalized preterm infants, significantly in-hospital death risks were found in out-born of HWCH, GA < 32 weeks, birth weight <  1000 g, Apgar-5 min < 7, birth defects, respiratory distress syndrome, necrotizing enterocolitis and ventilation, whereas born in HWCH, antenatal glucocorticoids, cesarean delivery and surfactant use decreased the death risks. Conclusions The integrated data revealed the prevalence, GA-specific morbidity and mortality rate of total preterm births and their hospitalization, demonstrating the efficiency of leading referral center and whole regional perinatal-neonatal network in China. The concept and protocol should be validated in further studies for prevention of preterm birth.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jiajia Jing ◽  
Yiheng Dai ◽  
Yanqi Li ◽  
Ping Zhou ◽  
Xiaodong Li ◽  
...  

Abstract Background Antenatal corticosteroids (ACS) treatment is critical to support survival and lung maturation in preterm infants, however, its effect on feeding and growth is unclear. Prior preterm delivery, it remains uncertain whether ACS treatment should be continued if possible (repeated course ACS), until a certain gestational age is reached. We hypothesized that the association of single-course ACS with feeding competence and postnatal growth outcomes might be different from that of repeated course ACS in very-low-birth-weight preterm infants. Methods A multicenter retrospective cohort study was conducted in very-low-birth-weight preterm infants born at 23–37 weeks’ gestation in South China from 2011 to 2014. Data on growth, nutritional and clinical outcomes were collected. Repeated course ACS was defined in this study as two or more courses ACS (more than single-course). Infants were stratified by gestational age (GA), including GA < 28 weeks, 28 weeks ≤ GA < 32 weeks and 32 weeks ≤ GA < 37 weeks. Multiple linear regression and multilevel model were applied to analyze the association of ACS with feeding and growth outcomes. Results A total of 841 infants were recruited. The results, just in very-low-birth-weight preterm infants born at 28–32 weeks’ gestation, showed both single and repeated course of ACS regimens had shorter intubated ventilation time compared to non-ACS regimen. Single-course ACS promoted the earlier application of amino acid and enteral nutrition, and higher rate of weight increase (15.71; 95%CI 5.54–25.88) than non-ACS after adjusting for potential confounding factors. No associations of repeated course ACS with feeding, mean weight and weight increase rate were observed. Conclusions Single-course ACS was positively related to feeding and growth outcomes in very-low-birth-weight preterm infants born at 28–32 weeks’ gestation. However, the similar phenomenon was not observed in the repeated course of ACS regimen.


Author(s):  
Sylvia Kirchengast ◽  
Beda Hartmann

The COVID 19 pandemic represents a major stress factor for non-infected pregnant women. Although maternal stress during pregnancy increases the risk of preterm birth and intrauterine growth restriction, an increasing number of studies yielded no negative effects of COVID 19 lockdowns on pregnancy outcome. The present study focused on pregnancy outcome during the first COVID 19 lockdown phase in Austria. In particular, it was hypothesized that the national lockdown had no negative effects on birth weight, low birth weight rate and preterm birth rate. In a retrospective medical record-based single center study, the outcome of 669 singleton live births in Vienna Austria during the lockdown phase between March and July 2020 was compared with the pregnancy outcome of 277 live births at the same hospital during the pre-lockdown months of January and February 2020 and, in addition, with the outcome of 28,807 live births between 2005 and 2019. The rate of very low gestational age was significantly lower during the lockdown phase than during the pre-lockdown phase. The rate of low gestational age, however, was slightly higher during the lockdown phase. Mean birth weight was significantly higher during the lockdown phase; the rates of low birth weight, very low birth weight and extremely low birth weight were significantly lower during the lockdown phase. In contrast, maternal gestational weight gain was significantly higher during the lockdown phase. The stressful lockdown phase in Austria seems to have no negative affect on gestational length and newborn weight among non-infected mothers.


2019 ◽  
Vol 37 (4) ◽  
pp. 472-478 ◽  
Author(s):  
Olivia Araújo Zin ◽  
Fernanda Valente Mendes Soares ◽  
Andrea Dunshee de Abranches ◽  
Ana Carolina Carioca da Costa ◽  
Letícia Duarte Villela ◽  
...  

ABSTRACT Objective: To create an electronic instrument in order to analyze the adequacy of the preterm infants’ nutritional therapy, checking the difference between the prescribed and the administered diet. Methods: A prospective and observational study on newborns with birthweight ≤1,500g and/or gestational age ≤32 weeks, without congenital malformations. The electronic instrument was developed based on Microsoft Excel 2010 spreadsheets and aimed at automatically calculating body weight gain, calories and macronutrients received daily by each patient from parenteral nutrition, intravenous hydration and enteral feedings. The weekly means of each nutrient were used to compare the prescribed and administered diets. Results: To evaluate the instrument, 60 newborns with a birth weight of 1,289±305 g and a gestational age of 30±2 weeks were included. Of them, 9.6% had restricted growth at birth and 55% at discharge. The median length of stay was 45±17 days. There were significant differences between prescribed and administered diet for all of the macronutrients and for total calories in the first three weeks. The lipid was the macronutrient with the greatest percentage error in the first week of life. Conclusions: The use of a computational routine was important to verify differences between the prescribed and the administered diet. This analysis is necessary to minimize calculation errors and to speed up health providers’ decisions about the nutritional approach, which can contribute to patients’ safety and to good nutritional practice. Very low birth weight infants are extremely vulnerable to nutritional deficiencies and any reduction in macronutrients they receive may be harmful to achieve satisfactory growth.


PEDIATRICS ◽  
1968 ◽  
Vol 41 (2) ◽  
pp. 483-494
Author(s):  
Leonard J. Graziani ◽  
Elliot D. Weitzman ◽  
Mutya S. A. Velasco

The maturation of the nervous system of two groups of infants of low birth weight was estimated by the results of a standardized clinical neurologic examination and by evaluation of the electroencephalographic responses to auditory stimuli (clicks). Algebraically summed responses to clicks were recorded simultaneously from 10 scalp electrodes, using a standard electroencephalograph, tape recorder, and a computer of average transients. The results obtained by the two methods were compared with the age postconception, estimated from the maternal history. One group consisted of infants whose birth weights were below the 10th percentile for their gestational age (37.1 ± 2.0 weeks); the other group consisted of infants whose birth weights were similar to the first group but were between the 25th and 75th percentile for their gestational age (31.0 ± 2.3 weeks). In the small-for-age infants, the electroencephalographic responses and the neurologic reflexes were more mature than in the infants of similar birth weights who were not small for age. The results of both examination methods correlated well with the estimated postconception age but less well with birth weight, postnatal age, or somatic growth.


PEDIATRICS ◽  
1982 ◽  
Vol 69 (1) ◽  
pp. 130-130
Author(s):  
Evelyn Lipper ◽  
Kwang-sun Lee ◽  
Lawrence M. Gartner ◽  
Bruce Grellong

All of the infants entered into the study were low-birth-weight infants (&lt;2,500 gm). The majority of infants had a gestational age less than 37 completed weeks, and, of these, some were also small for gestational age. Sixteen infants had a gestational age of ≥37 weeks but were included in the study because their birth weight was below the tenth percentile for their gestational age. We agree with Drs Knobloch and Malone's comment about the interrelationship of all three figures: as gastation advances, birth weight and head circumference increase.


PEDIATRICS ◽  
1972 ◽  
Vol 50 (2) ◽  
pp. 236-245 ◽  
Author(s):  
Avroy A. Fanaroff ◽  
Michael Wald ◽  
Howard S. Gruber ◽  
Marshall H. Klaus

Insensible water loss (IWL) was determined from measurements of insensible weight loss during the first 7 weeks of life on 30 immature and nine small-for-gestational age, low birth weight infants. Under standard conditions (single-walled incubator, infant nude, gavage feeding), 10 infants with birth weights less than 1,250 gm, gestational age &lt; 230 days (32 weeks) and postnatal age &lt;10 days lost &gt;2.5 gm/kg/hr (equivalent to 60-120 ml/kg/day), considerably higher than previously reported. Studies following the insertion of a plastic heat shield revealed a 25% reduction in IWL. The heat shield facilitates achievement of neutral thermal environment and reduced water losses in low birth weight infants. IWL measurements in infants with birth weights &gt;1,500 gm and those small-for-gestational age were similar to previously reported studies. Because of the known limited ability of small immature infants to increase metabolic rate, these extremely high losses are believed to represent disproportionately larger water losses from skin. Skin factors predisposing to large water loss in immature infants include thinner epidermis, increased water content, and increased permeability.


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