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Neonatal and Maternal Infections
Research Guide
What is Neonatal and Maternal Infections?
Neonatal and maternal infections refer to the epidemiology, management, prevention, and microbiological characteristics of neonatal sepsis, with emphasis on Group B Streptococcus as a leading cause of early-onset and late-onset sepsis in newborns and associated perinatal infections in mothers.
This field encompasses 38,741 papers on neonatal sepsis, focusing on Group B Streptococcus, early-onset sepsis, late-onset sepsis, antibiotic prophylaxis, diagnostic markers, and the global burden of invasive infections. Key works address prevention strategies, such as those outlined in 'Prevention of perinatal group B streptococcal disease--revised guidelines from CDC, 2010.' (Schrag et al., 2002), which note GBS as the leading cause of early-onset neonatal sepsis in the United States despite progress since the 1990s.
Topic Hierarchy
Research Sub-Topics
Early-Onset Neonatal Sepsis
This sub-topic examines the epidemiology, risk factors, and intrapartum management of sepsis occurring within the first 72 hours of life, predominantly caused by Group B Streptococcus. Researchers investigate screening protocols, maternal antibiotic prophylaxis, and neonatal outcomes.
Late-Onset Neonatal Sepsis
This area focuses on sepsis developing after 72 hours in preterm and very low birth weight infants, often nosocomial and involving gram-negative pathogens or coagulase-negative staphylococci. Studies explore hospital-acquired transmission, diagnostic challenges, and long-term neurodevelopmental impacts.
Group B Streptococcus Pathogenesis
Researchers study the virulence factors, genomic diversity, and host immune evasion mechanisms of Streptococcus agalactiae in maternal-neonatal infections. This includes pan-genome analyses and molecular epidemiology of invasive strains.
Diagnostic Biomarkers for Neonatal Sepsis
This sub-topic covers the validation of novel biomarkers like C-reactive protein, procalcitonin, and mitochondrial DAMPs for rapid diagnosis and differentiation of bacterial from non-infectious neonatal conditions. Research evaluates their sensitivity, specificity, and clinical utility in resource-limited settings.
Global Burden of Neonatal Sepsis
Epidemiological studies quantify incidence, mortality, and disparities in neonatal sepsis across low- and high-income countries, with emphasis on GBS attribution. Researchers model intervention impacts and track trends using surveillance data.
Why It Matters
Neonatal and maternal infections contribute significantly to morbidity and mortality in newborns, with Group B Streptococcus remaining the primary cause of early-onset neonatal sepsis in the United States, as detailed in 'Prevention of perinatal group B streptococcal disease--revised guidelines from CDC, 2010.' (Schrag et al., 2002). Late-onset sepsis affects very low birth weight neonates, impacting hospital course and survival, according to 'Late-Onset Sepsis in Very Low Birth Weight Neonates: The Experience of the NICHD Neonatal Research Network' (Stoll et al., 2002), which evaluated a cohort from the NICHD Neonatal Research Network. These infections parallel broader nosocomial challenges, with CDC definitions aiding surveillance as in 'CDC definitions for nosocomial infections, 1988' (Garner et al., 1988), and genomic studies like 'Genome analysis of multiple pathogenic isolates of Streptococcus agalactiae: Implications for the microbial “pan-genome”' (Tettelin et al., 2005) informing vaccine design against GBS strains.
Reading Guide
Where to Start
'Prevention of perinatal group B streptococcal disease--revised guidelines from CDC, 2010.' (Schrag et al., 2002), as it provides foundational CDC guidelines on GBS prevention, the leading cause of early-onset neonatal sepsis, with clear strategies for clinical application.
Key Papers Explained
'Prevention of perinatal group B streptococcal disease--revised guidelines from CDC, 2010.' (Schrag et al., 2002) establishes prevention protocols for GBS, complemented by 'Late-Onset Sepsis in Very Low Birth Weight Neonates: The Experience of the NICHD Neonatal Research Network' (Stoll et al., 2002), which quantifies risks in VLBW infants; 'Genome analysis of multiple pathogenic isolates of Streptococcus agalactiae: Implications for the microbial “pan-genome”' (Tettelin et al., 2005) builds on this by analyzing GBS genomics for pathogenesis; 'CDC definitions for nosocomial infections, 1988' (Garner et al., 1988) supplies diagnostic criteria underpinning surveillance in these studies.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Focus shifts to refining pediatric sepsis definitions, as in 'International pediatric sepsis consensus conference: Definitions for sepsis and organ dysfunction in pediatrics' (Goldstein et al., 2005), which modifies adult SIRS criteria for children to enable clinical studies; ongoing needs include pan-genome applications from Tettelin et al. (2005) for GBS vaccines.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Parkinsonism | 1967 | Neurology | 11.8K | ✓ |
| 2 | CDC definitions for nosocomial infections, 1988 | 1988 | American Journal of In... | 5.7K | ✕ |
| 3 | Circulating mitochondrial DAMPs cause inflammatory responses t... | 2010 | Nature | 3.6K | ✓ |
| 4 | International pediatric sepsis consensus conference: Definitio... | 2005 | Pediatric Critical Car... | 3.5K | ✕ |
| 5 | Prevention of perinatal group B streptococcal disease--revised... | 2002 | PubMed | 3.2K | ✕ |
| 6 | Estimating Health Care-Associated Infections and Deaths in U.S... | 2007 | Public Health Reports | 2.9K | ✕ |
| 7 | National Nosocomial Infections Surveillance (NNIS) System Repo... | 2003 | American Journal of In... | 2.9K | ✕ |
| 8 | Genome analysis of multiple pathogenic isolates of <i>Streptoc... | 2005 | Proceedings of the Nat... | 2.6K | ✓ |
| 9 | National Nosocomial Infections Surveillance (NNIS) System Repo... | 2004 | American Journal of In... | 2.3K | ✓ |
| 10 | Late-Onset Sepsis in Very Low Birth Weight Neonates: The Exper... | 2002 | PEDIATRICS | 2.3K | ✕ |
Frequently Asked Questions
What is the leading cause of early-onset neonatal sepsis?
Group B Streptococcus (GBS) is the leading cause of early-onset neonatal sepsis in the United States. 'Prevention of perinatal group B streptococcal disease--revised guidelines from CDC, 2010.' (Schrag et al., 2002) reports substantial progress in prevention since the 1990s through CDC guidelines and professional society collaboration.
How is late-onset sepsis defined in very low birth weight neonates?
Late-onset sepsis occurs after 3 days of age in very low birth weight infants. 'Late-Onset Sepsis in Very Low Birth Weight Neonates: The Experience of the NICHD Neonatal Research Network' (Stoll et al., 2002) determined its incidence, risk factors, and impact on hospital course in a NICHD cohort.
What do CDC guidelines recommend for perinatal GBS disease prevention?
CDC guidelines from 1996, revised in 2010, focus on antibiotic prophylaxis to prevent perinatal GBS disease. 'Prevention of perinatal group B streptococcal disease--revised guidelines from CDC, 2010.' (Schrag et al., 2002) details strategies despite GBS remaining the top cause of early-onset sepsis.
What are standard definitions for nosocomial infections relevant to neonatal care?
CDC definitions for nosocomial infections, established in 1988, standardize surveillance applicable to neonatal settings. 'CDC definitions for nosocomial infections, 1988' (Garner et al., 1988) provides criteria used in hospital infection control.
How does genomic analysis inform GBS pathogenesis?
Genome sequencing of multiple Streptococcus agalactiae isolates reveals genetic variability driving pathogenesis. 'Genome analysis of multiple pathogenic isolates of Streptococcus agalactiae: Implications for the microbial “pan-genome”' (Tettelin et al., 2005) shows how pan-genome analysis improves vaccine design beyond single genomes.
Open Research Questions
- ? What are the primary risk factors for late-onset sepsis in very low birth weight neonates beyond day 3 of life?
- ? How effective are current antibiotic prophylaxis strategies in reducing GBS early-onset sepsis incidence?
- ? What genetic variations in Streptococcus agalactiae isolates contribute most to perinatal invasiveness?
- ? How do pediatric sepsis definitions need refinement for neonatal populations with organ dysfunction?
- ? What surveillance gaps persist in estimating nosocomial infections specific to maternal-neonatal units?
Recent Trends
The field maintains steady output with 38,741 papers, emphasizing GBS prevention and sepsis epidemiology; no growth rate data available, no recent preprints or news reported.
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