Risk factors for neonatal sepsis among neonates in the neonatal intensive care unit at Hawassa University Comprehensive Specialized Hospital and Adare General Hospital in Hawassa City, Ethiopia

The burden of neonatal sepsis and its risk factors in Africa. a systematic review and meta-analysis

BACKGROUND

Neonatal sepsis is a significant cause of newborn mortality in low- and middle-income countries (LMICs). Together, infections, complications of preterm birth, and intrapartum-related conditions contribute to nearly 90% of all neonatal deaths. Africa experiences high rates of neonatal deaths due to sepsis, with insufficient prevention efforts. Understanding the burden of neonatal sepsis is essential to reducing these deaths in the region. This study aims to estimate the pooled magnitude of neonatal sepsis and identify its associated risk factors in Africa.

METHOD

For this study, we gathered data by searching various databases until August 20, 2024, including PubMed/MEDLINE, PubMed Central, Hinari, Google, Cochrane Library, African Journals Online, Web of Science, and Google Scholar. Full-text articles in English, both published and unpublished, from 2000 to 2024 were included. However, sources like citations without abstracts or full texts, unidentified reports, editorials, summaries of research, meta-analyses, and qualitative studies were not included in the study. We evaluated the quality of the selected papers using the Joanna Briggs Institute (JBI) critical appraisal checklist for observational studies. Data extraction was completed in Microsoft Excel, and analysis was conducted using STATA V.17 Statistical Software. We assessed study heterogeneity with the I2 statistic and the Cochrane Q test. Publication bias was evaluated both visually through a funnel plot and statistically through Egger's regression and Begg's tests. Subgroup analyses were performed to identify sources of heterogeneity, and a sensitivity analysis was conducted to find any outlier studies.

RESULT

This review includes 49 studies with 87,548 neonates. The overall magnitude of neonatal sepsis in Africa was found to be 40.98% (95% confidence interval (CI): 30.50% to 51.46%) P: 0.00. The study found that factors such as prolonged rupture of membranes (Odds ratio (OR) 4.11, 95% CI: 2.81-5.41) P: 0.00, a history of the urinary tract or sexually transmitted infections (OR 3.28, 95% CI: 1.97-4.58) P: 0.00, low birth weight (< 2500 g) (OR 6.95, 95% CI: 3-10.89) P: 0.00, an Appearance, Pulse, Grimace, Activity, Respiration (APGAR) score below 7 at the first minute (OR 7.56, 95% CI: 3.39-11.73) P: 0.00, preterm birth (OR 5.38, 95% CI: 3.23-7.5) P: 0.00, and neonates who were resuscitated at birth (OR 3.26, 95% CI: 1.96-4.56) P: 0.00.

CONCLUSION

The magnitude of neonatal sepsis in Africa remains high. This study identified several contributing factors, including prolonged rupture of membranes, a history of urinary tract or sexually transmitted infections, low birth weight (< 2500 g), an APGAR score below 7 at one minute, preterm birth, and resuscitation at birth. These findings underscore the importance of routinely screening for risk factors such as prolonged membrane rupture and maternal infections. Enhancing antenatal care, training providers in early neonatal sepsis management, and enforcing infection control measures.

Prevalence and factors associated with neonatal sepsis in Mali: a cross-sectional study

OBJECTIVE

This study aimed to assess the prevalence and risk factors for neonatal sepsis among neonates admitted to selected health facilities in the Bamako district and Koulikoro region in Mali.

DESIGN

This is a prospective cross-sectional study. Data were analyses using bivariate and multivariate logistic regression.

SETTING

This facility-based study was conducted in four health facilities consisting of two hospitals and two reference health centres in Mali.

PARTICIPANTS

The study participants comprised 795 randomly selected neonates and their indexed mother.

OUTCOME MEASURES

The primary outcome of the study was the prevalence of sepsis in the considered health facilities. The other variables of interest were risk factors for sepsis.

RESULTS

The prevalence of neonatal sepsis among the study population was 21.00%. More than 74% of sepsis cases were early onset (<72 hours). Neonatal age <7 days (AOR=2.79, 95% CI 1.59 to 4.89, p=0.000), low birth weight <2500 g (AOR=2.88, 95% CI 1.41 to 5.86, p=0.003), Apgar score <7 (AOR=4.03, 95% CI 3.09 to 5.24, p=0.000), mother with no education (AOR=2.24, 95% CI 1.15 to 4.33, p=0.02), maternal fever (AOR=2.31, 95% CI 1.53 to 3.53, p=0.000), prolonged rupture of membranes (AOR=1.87, 95% CI 1.01 to 3.54, p=0.04) and prolonged labour (AOR=2, 95% CI 1.03 to 3.88, p=0.04) were significantly associated with neonatal sepsis.

CONCLUSION

The prevalence of sepsis in Mali is still high. Given the country's current security context, the findings in this study can support prevention activities, particularly given the limited resources available. It is essential to facilitate antenatal and postnatal visits, to promote in-facility births and rigorous monitoring of neonates at high risk of sepsis. Furthermore, it would be beneficial for future research on neonatal sepsis to include neonates born at home.

Autopsy-related histomorphological findings in neonatal sepsis: a narrative review

Neonatal sepsis is an important concern in the field of neonatology, contributing significantly to morbidity and mortality among newborns worldwide. Despite progress in medical care, the accurate diagnosis and comprehension of the pathological underpinnings of neonatal sepsis continue to present challenges. Conventional diagnostic autopsy (CDA) provides unique opportunities to gain insights into the histomorphological alterations associated with neonatal sepsis. There is a paucity of literature regarding autopsy-related histomorphological features in neonatal sepsis in various organs. This narrative review aims to glean data from published literature concerning autopsy-related histomorphological findings in neonatal sepsis, which would aid in understanding organ-related pathological changes and assisting pathologists in determining the exact cause of death.

Neonatal Sepsis: A Comprehensive Review

Neonatal sepsis remains a significant cause of neonatal morbidity and mortality globally. At present, no clear consensus definition for sepsis in neonates exists, even though a positive blood culture is considered as the gold standard for definitive diagnosis. The accurate and timely diagnosis of sepsis in neonates presents significant difficulties, since "culture negative" or "suspected" sepsis varies widely worldwide. Antibiotic overuse and resistance are emerging problems, but on the other hand, under-recognition of sepsis and delayed antibiotic treatment could have serious or even fatal adverse outcomes in this vulnerable population. In the context of rapid recognition of sepsis and timely initiation of appropriate antibiotic therapy, various sepsis risk assessment tools have been developed, a variety of biomarkers are in clinical use or under research for future use, and new diagnostic techniques are under evaluation. In this review, we summarize the most recent data on neonatal sepsis, the utility of sepsis risk assessment tools for term and preterm infants with sepsis, and current diagnostic and preventive tools.

Association between neutrophil-to-lymphocyte ratio and epidural-related maternal fever in Chinese parturients: a prospective cohort study

OBJECTIVE

Epidural analgesia could increase the risk of maternal fever during labor, and the potential mechanisms involved inflammation. Neutrophil-to-lymphocyte ratio (NLR) was a sensitive inflammatory composite indicator and related to adverse outcomes in parturients. This study aimed to investigate the association between NLR levels and epidural related maternal fever (ERMF).

METHODS

This prospective cohort study included 614 parturients who underwent epidural analgesia at the Women's Hospital School of Medicine Zhejiang University from November 2021 to May 2023. NLR level was calculated before epidural analgesia for women. The outcome was ERMF. Univariate and multivariate logistic regression models were utilized to explore the association between NLR level and ERMF. And the association was further investigated in subgroups of age, body mass index (BMI) before pregnancy, and parity of delivery. The results were presented as odds ratios (ORs) and 95% confidence intervals (CIs).

RESULTS

Totally, 614 parturients, of whom 171 (27.85%) had ERMF. High NLR level was associated with higher incidence of ERMF (OR = 2.70, 95% CI: 1.58-4.69). Parturients with ERMF had higher proportion of postpartum hemorrhage, longer labor times, and other adverse outcomes in parturients. The association also observed in subgroups of age <35 years old (OR = 2.74, 95% CI: 1.55-4.29), BMI <24 kg/m2 before pregnancy (OR = 2.32, 95% CI: 1.32-4.13), BMI ≥24 kg/m2 before pregnancy (OR = 38.28, 95%CI: 3.67-854.66), primipara (OR = 2.26, 95% CI:1.27-4.04), and multipara (OR = 30.60, 95% CI: 3.73-734.03).

CONCLUSION

High NLR levels were associated with ERMF in women. It indicated that physicians may measure NLR levels as a regular measurement, which may beneficial for pregnancy outcomes.

C-reactive protein and thrombocytopenia as essential early indicators: Subtle approach to neonatal sepsis

Introduction

Early diagnosis of neonatal sepsis is very essential part of newborn care to prevent mortality and decrease morbidity in newborns.

Aim

The aim of this study is to correlate an increase in C-reactive protein (CRP) titre and a decrease in platelet count with an increased incidence of neonatal septicemia, for an effective subtle approach in neonatal septicemia.

Materials and Methods

A retrospective study was conducted in the neonatal intensive care unit (NICU) of a tertiary care hospital from Jan 2022 to July 2023. Neonates admitted to the NICU with suspected sepsis were screened for sepsis. Screening was done by taking blood culture samples before administration of antibiotics, serum samples for CRP and blood samples for platelet count.

Result

A total of 270 newborns with suspected sepsis were included in the study. Blood culture positivity was seen in 27.7 (27/75) cases. About 32.9% (89/270) of the neonates with suspected sepsis and 61.3% (46/75) neonates with confirmed sepsis had raised CRP; 32.2% (87/270) neonates with suspected sepsis and 64% (48/75) with confirmed sepsis had decreased platelet count. Both an increase in CRP and a decrease in platelets were seen in 61.3% (46/75) of confirmed cases.

Conclusion

In our study, both raised CRP and decreased platelet count were seen in around 60% of confirmed cases of sepsis. So, CRP titre and platelet count can be used as early, rapid diagnostic markers for confirmed sepsis.

Neonatal sepsis in a tertiary health facility in Cape Coast, Ghana

BACKGROUND

Neonatal Sepsis remains a significant burden globally, accounting for over 2.5 million neonatal deaths annually, with low-and middle-income countries (LMIC) including Ghana disproportionately affected. The current study sought to ascertain the prevalence of neonatal sepsis and associated factors based on analysis of institutional records from Cape Coast Teaching Hospital (CCTH) in Ghana.

METHODS

The study involved a retrospective cross-sectional review of randomly sampled medical records of 360 neonates CCTH from January 2018 to December 2021. Descriptive proportions and binary logistic regression analysis were conducted to estimate the prevalence of neonates with sepsis and associated factors.

RESULTS

The prevalence of neonates with sepsis over the period was estimated to be 59%, with early-onset neonatal sepsis (EONS) and late-onset neonatal sepsis (LONS) accounting for about 29% and 30%, respectively. Neonatal factors associated with sepsis were low Apgar score (AOR = 1.64; 95% CI:1.01-2.67, p = 0.047) and low birth weight (AOR = 2.54; 95% CI:1.06-6.09, p = 0.037), while maternal factors were maternal education (AOR = 2.65; 95% CI:1.04-6.7, p = 0.040), caesarean deliveries (AOR = 0.45; 95% CI:0.26-0.75, p = 0.003), maternal infection (AOR = 1.79; 95% CI:1.09-2.94, p = 0.020) and foul-smelling liquor (AOR = 1.84; 95% CI:1.09-3.07, p = 0.020).

CONCLUSION

The study underscores the need for improved routine care and assessment of newborns to prevent the onset of neonatal sepsis, with particular emphasis on the neonatal and maternal risk factors highlighted in the current study.

Prevalence and factors associated with maternal and neonatal sepsis in sub-Saharan Africa: a systematic review and meta-analysis

Objectives

This study aimed to determine the prevalence and factors associated with maternal and neonatal sepsis in sub-Saharan Africa.

Methods

This systematic review and meta-analysis used the PRISMA guideline on sepsis data in sub-Saharan Africa. The bibliographic search was carried out on the following databases: Medline/PubMed, Cochrane Library, African Index Medicus, and Google Scholar. Additionally, the reference lists of the included studies were screened for potentially relevant studies. The last search was conducted on 15 October 2022. The Joanna Briggs Institute quality assessment checklist was applied for critical appraisal. Estimates of the prevalence of maternal and neonatal sepsis were pooled using a random-effects meta-analysis model. Heterogeneity between studies was estimated using the Q statistic and the I2 statistic. The funnel plot and Egger's regression test were used to assess the publication bias.

Results

A total of 39 studies were included in our review: 32 studies on neonatal sepsis and 7 studies on maternal sepsis. The overall pooled prevalence of maternal and neonatal sepsis in Sub-Saharan Africa was 19.21% (95% CI, 11.46-26.97) and 36.02% (CI: 26.68-45.36), respectively. The meta-analyses revealed that Apgar score < 7 (OR: 2.4, 95% CI: 1.6-3.5), meconium in the amniotic fluid (OR: 2.9, 95% CI: 1.8-4.5), prolonged rupture of membranes >12 h (OR: 2.8, 95% CI: 1.9-4.1), male sex (OR: 1.2, 95% CI: 1.1-1.4), intrapartum fever (OR: 2.4, 95% CI: 1.5-3.7), and history of urinary tract infection in the mother (OR: 2.7, 95% CI: 1.4-5.2) are factors associated with neonatal sepsis. Rural residence (OR: 2.3, 95% CI: 1.01-10.9), parity (OR: 0.5, 95% CI: 0.3-0.7), prolonged labor (OR: 3.4, 95% CI: 1.6-6.9), and multiple digital vaginal examinations (OR: 4.4, 95% CI: 1.3-14.3) were significantly associated with maternal sepsis.

Conclusion

The prevalence of maternal and neonatal sepsis was high in sub-Saharan Africa. Multiple factors associated with neonatal and maternal sepsis were identified. These factors could help in the prevention and development of strategies to combat maternal and neonatal sepsis. Given the high risk of bias and high heterogeneity, further high-quality research is needed in the sub-Saharan African context, including a meta-analysis of individual data.Systematic review registration: PROSPERO (ID: CRD42022382050).

Sepsis Risk Factors in Neonatal Intensive Care Units of Public Hospitals in Southeast Ethiopia, 2020: A Retrospective Unmatched Case-Control Study

Background

Neonatal sepsis is a significant contributor to neonatal morbidity and mortality worldwide. It is more prevalent in developing countries. Thus, understanding the risk factors for neonatal sepsis is critical to minimizing the incidence of infection, particularly in Ethiopia. The purpose of this study was to identify the risk factors for neonatal sepsis in neonates admitted to neonatal intensive care units of public hospitals in Southeast Ethiopia in 2020.

Method

An institution-based, retrospective unmatched case-control study was conducted on 97 cases and 194 controls in neonatal intensive care units of public hospitals in Southeast Ethiopia. A pretested, structured questionnaire was used to collect the data. Data was entered using EpiData 3.1 and analyzed using SPSS version 23. Bivariable and multivariable logistic regression analyses were performed to identify associated factors. An adjusted odds ratio with a 95% confidence interval was used to determine the degree of association, and statistical significance was declared at a p value of < 0.05.

Results

In this study, 97 cases and 194 controls were included. About two-thirds (63.9%) of cases were with early onset neonatal sepsis (<7 days). Mode of delivery with spontaneous vaginal delivery (AOR:5.032; 95% CI (1.887-13.418)), type of birth attendant (traditional birth attendant) (AOR: 4.407 95% CI (1.213,16.004)), history of STI/UTI (AOR:2.543; 95% CI (1.313,4.925)), intrapartum fever (AOR:4.379; 95% CI (2.170,8.835)), APGAR score at the 5thminute < 7 (AOR:4.832; 95% CI (1.862,12.537)), neonate received resuscitation (AOR:3.830; 95% CI (1.753,8.369)), low birth weight (AOR:6.101; 95% CI (2.124,17.525)) were the identified risk factors for neonatal sepsis.

Conclusion

Both maternal and neonatal factors contribute to the risk of neonatal sepsis. Spontaneous vaginal delivery, birth attended by the traditional birth attendant, history of STI/UTI, presence of intrapartum fever, low APGAR score at the 5th minute, neonate receiving resuscitation, and low birth weight were identified as independent risk factors for neonatal sepsis. Prompt identification of the aforementioned factors and management should be sought for all newborns.

A Saudi Hospital's Experience in the Management of Well-Appearing Neonates at Increased Risk for Early-Onset Bacterial Sepsis

BACKGROUND

Early-onset neonatal bacterial sepsis (EOS) is a serious medical condition where pathogenic bacterial species are isolated from the blood of newborns within the first 72 hours of life. Neonatal healthcare providers face challenges in managing well-appearing newborns born at 35 weeks gestational age or more who are at an increased risk of developing EOS. The American Academy of Pediatrics (AAP) has recommended three approaches for managing EOS. One of these approaches includes enhanced observation to observe the progression of the newborn's clinical condition within the first 48 hours after birth. The AAP recommends that birth centers should adopt institutional approaches that are tailored to their specific local resources and structures. It recommends that the chosen approach is evaluated to identify infrequent negative outcomes and to confirm its effectiveness.

AIMS

To report our experience in managing EOS in newborns born at 35 weeks gestation or later with an increased risk for EOS.

METHODS

This was a review of electronic medical records from the past five years. We included a sample of newborns born at or after 35 weeks gestational age who were at increased risk of EOS and appeared to be healthy. We implemented universal antenatal culture-based screening for Group B streptococcus (GBS). We followed the recommendations of the AAP in 2012 to manage these newborns. We performed a complete blood count (CBC) with differential and C-reactive protein (CRP) tests to predict EOS. We also considered the newborns symptomatic if they displayed any clinical signs of EOS.

RESULTS

A total of 806 newborns were included in the study, out of which 27 (3.3%) of them had symptoms of EOS, while the remaining 782 newborns appeared healthy. Predictive blood tests were performed on 281 (34.9%) of the newborns, out of which 126 (44.8%) of them had a positive test result. However, blood cultures were obtained from 134 (16.6%) of the total cohort. Intravenous antibiotics were administered to 33 (4.1%) of the newborns. All symptomatic newborns had a positive predictive blood test result, and two of them had culture-proven EOS. Blood cultures obtained from the remaining 107 asymptomatic newborns were negative. In this context, 140 newborns needed to be pricked for positive predictive blood tests to predict one case of EOS. However, if the positive predictive blood tests were only performed on symptomatic newborns, then only 14 newborns would need to be pricked to predict one case of EOS.

CONCLUSION

Based on the present study, it is advised to follow the current AAP recommendation against predicting EOS by solely relying on CBC with differential or CRP. The study suggests that the enhanced observation approach is a more sensible option for managing EOS, but this needs to be confirmed in a larger study.

Determinants of neonatal sepsis among neonates admitted to neonatal intensive care units in ethiopian hospitals: A systematic review and meta-analysis

Objective

Several studies have identified risk factors for neonatal sepsis, but they are limited to specific geographical areas with results that may not be generalizable to other populations. Hence, the objective of this study was to determine the contributing factors, representative at a national level, that influence the occurrence of neonatal sepsis in neonates receiving hospital care in Ethiopia.

Methods and materials

A thorough search was conducted across PubMed/Medline, Hinari, Cochrane Library, and Google Scholar to identify relevant studies. The pooled odds ratio was estimated using the random effect model. The heterogeneity among the included studies was evaluated using the I2 and Cochrane Q-statistics tests. Egger's tests used to assess publication bias.

Results

A total of 19 studies comprising 6190 study participants were included. Neonatal sepsis was positively associated with several factors, namely: prolonged premature rupture of membrane (OR: 3.85, 95% CI: 2.31-6.42), low first minute APGAR score (OR: 3.74, 95% CI: 1.29-10.81), low fifth minute APGAR score (OR: 4.17, 95% CI: 1.76-9.91), delayed initiation of breastfeeding (OR: 3.41, 95% CI: 2.18-5.36), and infection of the maternal urinary tract (OR: 3.17, 95% CI: 1.87-5.35).

Conclusion

Duration of rupture of membrane, APGAR score, time of initiation of breastfeeding, and urinary tract infection have a role in the development of neonatal sepsis.