Mortality and morbidity in extremely low birth weight (ELBW) infants in a neonatal intensive care unit

Outcomes and Morbidities in Low-Birth-Weight Neonates: A Retrospective Study From Western India

BACKGROUND

Low birth weight (LBW) increases infant morbidity and mortality and is a major public health concern, especially in resource-constrained settings. The purpose of this retrospective study was to assess the outcomes and morbidities related to LBW neonates referred to a neonatal intensive care unit (NICU) in Western India.

METHODS

The present study examined the medical records of newborns weighing less than 2 kg at birth who were admitted to the NICU between September 15, 2016, and September 15, 2017. Data on long-term outcomes, clinical manifestations, morbidities, mortality, and demographic variables were gathered and analyzed. Descriptive statistics were used to present continuous variables as mean and standard deviation (SD), while categorical variables were presented as frequencies and percentages. Bivariate and multivariate logistic regression analyses were carried out to find the association between gestational age and major morbidities among LBW babies.

RESULTS

Of 4710 births, 327 (6.9%) were LBW. The leading morbidities of LBW babies were respiratory distress syndrome (RDS) 153 (46.8%), neonatal jaundice 92 (28%), and septicemia 81 (25%), contributing to 58 (17.7%) deaths. Lower gestational age was associated with significantly higher adjusted odds of RDS (<28 weeks: reference; 28-32 weeks: adjusted odds ratio (AOR) 0.07, 95% confidence interval (CI) 0.01-0.33; ≥37 weeks: AOR 0.001, 95% CI 0.00005-0.02) and RDS-related mortality (28-32 weeks: AOR 0.26, 95% CI 0.06-1.13; ≥37 weeks: AOR 0.07, 95% CI 0.01-0.43). Among 250 successfully discharged cases, at 12 months, 18 (13.7%) had a weight below the 3rd percentile, and 9 (6.8%) failed the neurodevelopmental screening.

CONCLUSION

LBW infants in this setting experience significant morbidities, mortality, and long-term growth and developmental effects. To alleviate the burden associated with LBW, improved neonatal care facilities, infection control protocols, and focused interventions are essential.

Global Prevalence of Severe Neonatal Jaundice among Hospital Admissions: A Systematic Review and Meta-Analysis

Evidence regarding the adverse burden of severe neonatal jaundice (SNJ) in hospitalized neonates in resource-constrained settings is sparse. We attempted to determine the prevalence of SNJ, described using clinical outcome markers, in all World Health Organization (WHO) regions in the world. Data were sourced from Ovid Medline, Ovid Embase, Cochrane Library, African Journals Online, and Global Index Medicus. Hospital-based studies, including the total number of neonatal admissions with at least one clinical outcome marker of SNJ, defined as acute bilirubin encephalopathy (ABE), exchange blood transfusions (EBT), jaundice-related death, or abnormal brainstem audio-evoked response (aBAER), were independently reviewed for inclusion in this meta-analysis. Of 84 articles, 64 (76.19%) were from low- and lower-middle-income countries (LMICs), and 14.26% of the represented neonates with jaundice in these studies had SNJ. The prevelance of SNJ among all admitted neonates varied across WHO regions, ranging from 0.73 to 3.34%. Among all neonatal admissions, SNJ clinical outcome markers for EBT ranged from 0.74 to 3.81%, with the highest percentage observed in the African and South-East Asian regions; ABE ranged from 0.16 to 2.75%, with the highest percentages observed in the African and Eastern Mediterranean regions; and jaundice-related deaths ranged from 0 to 1.49%, with the highest percentage observed in the African and Eastern Mediterranean regions. Among the cohort of neonates with jaundice, the prevalence of SNJ ranged from 8.31 to 31.49%, with the highest percentage observed in the African region; EBT ranged from 9.76 to 28.97%, with the highest percentages reported for the African region; ABE was highest in the Eastern Mediterranean (22.73%) and African regions (14.51%). Jaundice-related deaths were 13.02%, 7.52%, 2.01% and 0.07%, respectively, in the Eastern Mediterranean, African, South-East Asian and European regions, with none reported in the Americas. aBAER numbers were too small, and the Western Pacific region was represented by only one study, limiting the ability to make regional comparisons. The global burden of SNJ in hospitalized neonates remains high, causing substantial, preventable morbidity and mortality especially in LMICs.

Primary anastomosis as a valid alternative for extremely low birth weight infants with spontaneous intestinal perforation

The aim was to assess the results of primary anastomosis (PA) compared to enterostomy (ES) in infants with spontaneous intestinal perforation (SIP) and a weight below 1000 g. Between 2014 and 2016, enterostomy was routinely carried out on extremely low birth weight (ELBW) patients with SIP. From 2016 until 2019, all patients underwent anastomosis without stoma formation. We compared outcome and complications in both groups. Forty-two patients with a median gestational age of 24.3 weeks and a birth weight of 640 g with SIP were included. Thirty patients underwent PA; ES was performed in 12 patients. Overall in-hospital mortality was 11.9% (PA: 13.3%, ES: 8.3%). Reoperations due to complications became necessary in 10/30 patients with PA and 4/12 patients with ES. Length of stay was 110.5 days in the PA group and 124 days in the ES group. Median weight at discharge was higher in the PA group (PA: 2258 g, ES: 1880 g, p = .036).Conclusion: Primary anastomosis is a feasible treatment option for SIP in infants < 1000 g and may have a positive impact on weight gain and length of hospitalization. However, further studies on selection criteria for PA are necessary. What is Known: • Enterostomy (ES) and primary anastomosis (PA) are feasible treatment options in preterm infants with spontaneous intestinal perforation (SIP). • Stomal complications or failure to thrive due to poor food utilization can pose significant problems. What is New: • Primary anastomosis in case of SIP is equal to enterostomy in terms of mortality and revision rate; however, length of stay and weight gain can be presumably positively influenced. • Primary anastomosis is a valid treatment option even for patients weighing less than 1000 g.

Factors Associated with Treatment Outcome of Preterm Babies at Discharge from the Neonatal Intensive Care Unit (NICU) of the Tamale Teaching Hospital, Ghana

Background

Preterm birth and complications are now the leading cause of death in children under 5 years globally. In Ghana, studies assessing the survival rate of preterm babies and associated factors in Neonatal Intensive Care Units (NICU) are limited. Therefore, this study was designed to assess the survival rate and associated factors in this group of babies in a teaching hospital in the Northern Region of Ghana.

Methods

This was a 7-month retrospective descriptive study conducted in the NICU of the Tamale Teaching Hospital, Ghana. It involved review of charts of all preterm babies admitted between 1 March 2017 and 30 September 2017. Data retrieved from all eligible patients was analyzed using Stata version 12.1 software to generate descriptive statistics. Relationship between dependent and independent variables was tested using Pearson chi square. A logistic regression model was estimated to assess determinants of the treatment outcome.

Results

The overall survival rate at discharge in this cohort was 60.73%. The survival rate was lowest in the extremely low birth weight group (3/21; 14.3%) and extremely preterm babies (4/20; 20%). Significant association was observed between birth weight (P = 0.0001), gestational age (P = 0.0001), and survival. Preterm babies who were hypothermic at presentation, had respiratory distress syndrome, and had jaundice were 7.2 times (AOR = 7.2; 95%CI = 1.9‐28.1; P = 0.004), 10.2 times (AOR = 10.2; 95%CI = 3.7‐27.9; P ≤ 0.0001), and 2.9 times (AOR = 2.9; 95%CI = 1.0‐8.5; P = 0.045), respectively, more likely to die on admission compared to neonates who did not have these comorbidities.

Conclusion

We found a high mortality rate in the preterm babies admitted to our unit, and that mortality rate decreased with increasing gestational age and birth weight. A number of neonatal factors, either in isolation or in combination, were significantly associated with in-hospital mortality.

Outcome of extremely low birth weight (ELBW) infants from a birth cohort (2013-2018) in a tertiary care unit in North India

OBJECTIVE

To evaluate mortality and short-term morbidities in extremely low birth weight (ELBW) infants (<1000 g) in a birth cohort in North India.

METHODS

In-hospital data of 231 ELBW infants (Jan 2013 to Sept 2018) were collected from a prospectively maintained electronic database by using standard definitions.

RESULTS

The mean (SD) gestation and birth weight were 27.9 (2.2) weeks and 783 (133) g, respectively. Major morbidities included respiratory distress syndrome (n = 132, 57%), moderate-to-severe bronchopulmonary dysplasia (n = 62, 26.8%), hemodynamically significant patent ductus arteriosus (n = 65, 28%), intracranial hemorrhage ≥ grade II (n = 38, 16%), and culture-positive sepsis (n = 44, 19%). Median (IQR) duration of hospital stay (survivors) was 50 (17-79) days. The overall survival was 62%. On logistic regression, severe birth asphyxia, gestation ≤26 weeks, and respiratory distress syndrome were major predictors of mortality.

CONCLUSION

In the current ELBW cohort, nearly two-thirds survived until discharge, who had considerable morbidities needing prolonged hospital stay. This study can be utilized for counseling and planning of care of ELBW infants in similar settings.

Advanced Neonatal Medicine in China: A National Baseline Database

Previous surveys of neonatal medicine in China have not collected comprehensive information on workforce, investment, health care practice, and disease expenditure. The goal of the present study was to develop a national database of neonatal care units and compare present outcomes data in conjunction with health care practices and costs. We summarized the above components by extracting data from the databases of the national key clinical subspecialty proposals issued by national health authority in China, as well as publicly accessible databases. Sixty-one newborn clinical units from provincial or ministerial hospitals at the highest level within local areas in mainland China, were included for the study. Data were gathered for three consecutive years (2008–2010) in 28 of 31 provincial districts in mainland China. Of the 61 newborn units in 2010, there were 4,948 beds (median = 62 [IQR 43–110]), 1,369 physicians (median = 22 [IQR 15–29]), 3,443 nurses (median = 52 [IQR 33–81]), and 170,159 inpatient discharges (median = 2,612 [IQR 1,436–3,804]). During 2008–2010, the median yearly investment for a single newborn unit was US$344,700 (IQR 166,100–585,800), median length of hospital stay for overall inpatient newborns 9.5 (IQR 8.2–10.8) days, median inpatient antimicrobial drug use rate 68.7% (IQR 49.8–87.0), and median nosocomial infection rate 3.2% (IQR1.7–5.4). For the common newborn diseases of pneumonia, sepsis, respiratory distress syndrome, and very low birth weight (<1,500 grams) infants, their lengths of hospital stay, daily costs, hospital costs, ratios of hospital cost to per-capita disposable income, and ratios of hospital cost to per-capita health expenditure, were all significantly different across regions (North China, Northeast China, East China, South Central China, Southwest China, and Northwest China). The survival rate of extremely low birth weight (ELBW) infants (Birth weight <1,000 grams) was 76.0% during 2008–2010 in the five hospitals where each unit had more than 20 admissions of ELBW infants in 2010; and the median hospital cost for a single hospital stay in ELBW infants was US$8,613 (IQR 8,153–9,216), which was 3.0 times (IQR 2.0–3.2) the average per-capita disposable income, or 63 times (IQR 40.3–72.1) the average per-capita health expenditure of local urban residents in 2011. Our national database provides baseline data on the status of advanced neonatal medicine in China, gathering valuable information for quality improvement, decision making, longitudinal studies and horizontal comparisons.

Current status of neonatal intensive care in India

Globally, newborn health is now considered as high-level national priority. The current neonatal and infant mortality rate in India is 29 per 1000 live births and 42 per 1000 live births, respectively. The last decade has seen a tremendous growth of neonatal intensive care in India. The proliferation of neonatal intensive care units, as also the infusion of newer technologies with availability of well-trained medical and nursing manpower, has led to good survival and intact outcomes. There is good care available for neonates whose parents can afford the high-end healthcare, but unfortunately, there is a deep divide and the poor rural population is still underserved with lack of even basic newborn care in few areas! There is increasing disparity where the 'well to do' and the 'increasingly affordable middle class' is able to get the most advanced care for their sick neonates. The underserved urban poor and those in rural areas still contribute to the overall high neonatal morbidity and mortality in India. The recent government initiative, the India Newborn Action Plan, is the step in the right direction to bridge this gap. A strong public-private partnership and prioritisation is needed to achieve this goal. This review highlights the current situation of neonatal intensive care in India with a suggested plan for the way forward to achieve better neonatal care.

Outcome of esophageal atresia/tracheoesophageal fistula in extremely low birth weight neonates (<1000 grams)

PURPOSE

To review the outcomes of extremely low birth weight (ELBW, <1000 g) infants with esophageal atresia/tracheoesophageal fistula (EA/TEF).

METHODS

Health records of ELBW EA/TEF infants treated at our institution from 2000 to 2014 were reviewed (REB1000046653). Demographics, operative approach and postoperative complications were analyzed. Data are reported as median (range).

RESULTS

Of 268 EA/TEF infants, 8 (3 %, five females) were ELBW (930 g, 540-995). Gestational age was 28 weeks (23-32). Seven had type-C EA/TEF and one type B.

OUTCOMES

One trisomy 18 infant received no treatment and died; one initially diagnosed as type A had primary repair at 126 days of life (DOL); six underwent TEF ligation (three trans-pleural) with primary repair in one and delayed anastomosis in two (DOL 120 and 178). The remaining three died (gastrostomy dehiscence and peritonitis, liver hemorrhage during peritoneal drain insertion, severe chronic lung disease and brain hemorrhages). At a median follow-up of 3 years (range 15 months-5 years), all survivors are thriving.

CONCLUSION

ELBW infants with EA/TEF are rare and result in high morbidity and mortality. Mortality is mainly related to complications not associated with EA/TEF repair. Fistula ligation followed by delayed anastomosis seems to achieve a better outcome in ELBW infants.

A Selected Review of the Mortality Rates of Neonatal Intensive Care Units

INTRODUCTION

Newborn babies in need of critical medical attention are normally admitted to the neonatal intensive care unit (NICU). These infants tend to be preterm, have low birth weight, and/or have serious medical conditions. Neonatal survival varies, but progress in perinatal and neonatal care has notably diminished mortality rates. In this selected review, we examine and compare the NICU mortality rates and etiologies of death in different countries.

METHODS

A literature search was conducted in Ovid MEDLINE, OLDMEDLINE, EMBASE Classic, and EMBASE. The primary endpoint was the mortality rates in NICUs. Secondary endpoints included the reasons for death and the correlation between infant age and mortality outcome. For the main analysis, we examined all infants admitted to NICUs. Subgroup analyses included extremely low birth weight infants (based on the authors' own definition), very low birth weight infants, very preterm infants, preterm infants, preterm infants with a birth weight of ≤1,500 g, and by developed and developing countries.

RESULTS

The literature search yielded 1,865 articles, of which 20 were included. The total mortality rates greatly varied among countries. Infants in developed and developing countries had similar ages at death, ranging from 4 to 20 days and 1 to 28.9 days, respectively. The mortality rates ranged from 4 to 46% in developed countries and 0.2 to 64.4% in developing countries.

CONCLUSION

The mortality rates of NICUs vary between nations but remain high in both developing and developed countries.

Predictors of mortality and major morbidities in extremely low birth weight neonates

OBJECTIVE

To determine predictors of mortality and morbidity in extremely low birth weight neonates (ELBW) from a developing country.

STUDY DESIGN

Prospective observational study.

SETTING

Level III neonatal unit in Northern India.

SUBJECTS

Neonates <1000 g born and admitted to intensive care during study period were enrolled. They were analyzed based on survival and development of major morbidity. Multivariable logistic regression model was used to determine independent risk factors.

OUTCOME

Mortality and major morbidity (one or more of the following: Bronchopulmonary dysplasia (BPD), Retinopathy of Prematurity (ROP) requiring laser, grade III or IV intraventricular hemorrhage (IVH), periventricular leukomalacia (PVL) and necrotizing enterocolitis (NEC) stage III) during hospital stay.

RESULTS

Of 255 ELBW neonates born, 149 received optimal care, of which 78 (52%) survived and 57 (39%) developed morbidities. Mean birth weight and gestational age were 29.1±2.6 weeks and 843±108 g. Major causes of mortality were sepsis (46%), birth asphyxia (20%) and pulmonary hemorrhage (19%). Birth weight <800 g [OR (95% CI)-3.51 (1.39-8.89), P=0.008], mechanical ventilation [4.10 (1.64-10.28), P=0.003] and hypotensive shock [10.75 (4.00-28.89), P<0.001] predicted mortality while birth weight <800 g [3.75 (1.47-9.50), P=0.006], lack of antenatal steroids [2.62 (1.00-6.69), P=0.048), asphyxia [4.11 (1.45-11.69), P=0.008], ventilation [4.38 (1.29-14.79), P=0.017] and duration of oxygen therapy [0.004 (1.001-1.006), P=0.002] were the predictors of major morbidities.

CONCLUSIONS

Low birth weight, mechanical ventilation and hypotensive shock predicted mortality in ELBW neonates while low birth weight, lack of antenatal steroids, birth asphyxia, ventilation and duration of oxygen therapy were predictors for major morbidity.