Daily Ards Research Analysis
Analyzed 8 papers and selected 3 impactful papers.
Summary
Analyzed 8 papers and selected 3 impactful articles.
Selected Articles
1. Society of Critical Care Medicine Guidelines for the Administration of Neuromuscular Blockade in Adults With Acute Respiratory Distress Syndrome.
A multidisciplinary GRADE-based guideline issues conditional recommendations for NMBA use in adults with ARDS, specifically supporting use when PaO2/FiO2 is below 150. Equipoise remains regarding titratable versus fixed dosing, monitoring strategies for sedation/analgesia, and use during proning, reflecting limited evidence and safety considerations.
Impact: Provides contemporary, methodologically rigorous guidance for a contentious ARDS intervention with direct implications for bedside practice. Clarifies where evidence supports NMBA use and where uncertainties persist.
Clinical Implications: For adults with ARDS and PaO2/FiO2 <150, consider NMBA administration while individualizing decisions on dosing strategy and monitoring. Institutions should align protocols with these conditional recommendations and ensure robust sedation/analgesia assessment before/during paralysis.
Key Findings
- Conditional recommendation to use NMBAs in adults with ARDS when PaO2/FiO2 is <150.
- Equipoise regarding titratable versus fixed-dose NMBA strategies due to limited evidence.
- Equipoise on monitoring strategies for sedation/analgesia and on NMBA use during proning.
Methodological Strengths
- GRADE methodology with systematic reviews for predefined PICO questions
- Multidisciplinary expert panel with strict conflict-of-interest management
Limitations
- Predominantly conditional recommendations reflecting low-to-moderate certainty evidence
- Evidence gaps for dosing strategies, sedation monitoring, and proning contexts
Future Directions: Prioritize RCTs comparing titratable versus fixed-dose NMBAs, evaluate monitoring-based sedation strategies, and assess safety/efficacy of NMBA during proning in ARDS.
RATIONALE: Neuromuscular blocking agents (NMBAs) show potential benefits on mortality and other complications of acute respiratory distress syndrome (ARDS) in adult patients. Evidence-based decisions and processes ensure appropriate use of neuromuscular blockade in adult patients with ARDS. OBJECTIVES: The objective of these guidelines was to develop evidence-based recommendations for the administration of NMBAs in critically ill adult patients with ARDS. DESIGN: The American College of Critical Care Medicine Board convened a 21-member multidisciplinary panel of experts in critical care medicine, nursing, respiratory therapy, pharmacology, surgery, neurology, and anesthesiology. The panel included two expert methodologists specialized in developing evidence-based recommendations in alignment with the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology. Conflict-of-interest policies were strictly followed during all phases of guidelines development including task force selection and voting. METHODS: The panel members identified and formulated five Population, Intervention, Comparison, and Outcome questions. We conducted a systematic review for each question to identify the best available evidence, statistically analyzed the evidence, and assessed the certainty of the evidence using the GRADE methodology. We used the GRADE evidence-to-decision framework to formulate the recommendations. RESULTS: The panel generated two conditional recommendations. One recommendation is to use NMBAs in adults with ARDS with Pao2/Fio2 less than 150. For the other recommendations, there was equipoise in the recommendation for and against using titratable vs. fixed-dose NMBA dosing, a monitoring-based strategy for assessing depth of sedation and analgesia in adults with ARDS before initiating or while receiving neuromuscular blockade, and administration of NMBAs for patients who are proned, due to overall lack of evidence in critically ill patients and due to considerations of patient safety and experience concerns. CONCLUSIONS: These guidelines provide additional perspectives on the use of NMBA in patients with ARDS, recognizing that institutional and patient-specific considerations must help to guide the decision-making process.
2. Drying Very Preterm Infants Before Plastic Wrapping at Birth: A Randomized Clinical Trial.
In a 21-center randomized trial of 354 very preterm infants, drying before plastic wrapping did not improve normothermia at NICU admission compared with wrapping alone. Mortality was higher in the drying arm, although investigators reported no pathophysiologic link to the intervention and other outcomes were similar.
Impact: Provides high-quality negative evidence on a common delivery-room practice in extremely preterm infants, guiding resource allocation toward more effective thermal bundles.
Clinical Implications: Drying before plastic wrapping should not be routinely added to delivery-room thermal bundles for very preterm infants. Focus should remain on comprehensive thermal strategies and monitoring, given nearly half of infants arrived outside the normal thermal range.
Key Findings
- Normothermia at NICU admission: 45.8% (drying) vs 46.3% (no drying); RR 0.99 (95% CI 0.79–1.24).
- Mean admission temperature differed by -0.1 °C (95% CI -0.2 to 0.1) between groups.
- In-hospital mortality was higher in the drying group: 14.7% vs 5.6%; unadjusted RR 2.60 (95% CI 1.29–5.23), with no differences in other secondary outcomes.
Methodological Strengths
- Multicenter randomized design with trial registration (NCT05740072)
- Prespecified primary and secondary outcomes with complete allocation adherence
Limitations
- Unblinded design may introduce performance bias
- Study not powered for mortality; imbalance may be due to baseline risk
Future Directions: Develop and test enhanced thermal bundles (e.g., servo-controlled warming, delivery-room temperature optimization) and identify subgroups at highest hypothermia risk.
IMPORTANCE: Despite continuous improvements in neonatal resuscitation and stabilization in the last decades, thermal management immediately after birth remains an unresolved issue in preterm infants. OBJECTIVE: To compare 2 strategies of thermal management (plastic wrapping with or without drying) for preventing heat loss at birth in very preterm infants. DESIGN, SETTING, AND PARTICIPANTS: This multicenter, unblinded, randomized clinical trial was conducted among very preterm infants (birth weight <1500 g and/or gestational age ≤30 weeks 6 days) at 21 tertiary care hospitals in Italy from February 21, 2023, to July 18, 2024. INTERVENTIONS: Eligible neonates were randomly allocated to either drying before plastic wrapping in the delivery room (intervention arm) or plastic wrapping without drying (control arm). MAIN OUTCOMES AND MEASURES: The primary outcome was the proportion of participants with normothermia (36.5-37.5 °C) at admission to the neonatal intensive care unit (NICU). The secondary outcomes included hypothermia (<36.5 °C), moderate to severe hypothermia (<36.0 °C), and hyperthermia (>37.5 °C) at NICU admission, temperature at 1 hour after NICU admission, intraventricular hemorrhage, respiratory distress syndrome, late-onset sepsis, bronchopulmonary dysplasia, and mortality before hospital discharge. RESULTS: Overall, 354 very preterm infants were randomized (180 [50.8%] female; mean [SD] gestational age, 28.6 [2.5] weeks); all received the allocated intervention and were included in the analysis. Normothermia at NICU admission was achieved in 81 of 177 dried infants (45.8%) and 82 of 177 undried infants (46.3%; risk ratio, 0.99; 95% CI, 0.79-1.24). The mean (SD) neonatal temperature at NICU admission was 36.4 °C (0.8 °C) in dried neonates and 36.5 °C (0.7 °C) in undried neonates (mean difference, -0.1 °C; 95% CI, -0.2 °C to 0.1 °C). In-hospital mortality included 26 of 177 dried neonates (14.7%) and 10 of 177 undried neonates (5.6%) (unadjusted risk ratio, 2.60; 95% CI, 1.29-5.23). The other secondary outcome measures were not different between the 2 arms. CONCLUSIONS AND RELEVANCE: In this multicenter randomized clinical trial, drying before plastic wrapping provided no benefit to very preterm infants in maintaining normothermia at NICU admission. Most deaths could be expected due to the compromised profile of the neonates, with no pathophysiological explanation related to the trial interventions. Approximately half of the infants were outside the normal thermal range at NICU admission; hence, thermal management remains a challenge requiring further investigations. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT05740072.
3. The high-risk minority: undetected preterm SGA disproportionately contributes to adverse outcomes in a Chinese cohort.
In a single-center cohort of 32,158 deliveries, undetected preterm SGA represented only 6.7% of undetected cases but accounted for 65% of adverse outcomes. Compared with detected SGA, undetected SGA had higher composite adverse outcomes in both preterm (aOR 3.869) and term (aOR 3.308) deliveries, with specific increases in neonatal cerebral damage, RDS, and NEC among preterm infants.
Impact: Highlights a small but high-risk subgroup—undetected preterm SGA—that disproportionately contributes to neonatal morbidity, informing targeted prenatal screening strategies.
Clinical Implications: Enhance prenatal surveillance for fetal growth restriction, especially in preterm pregnancies, and consider intensified monitoring and delivery planning when SGA risk is suspected to reduce cerebral injury, RDS, and NEC.
Key Findings
- Among 32,158 deliveries, 1,509 SGA infants were identified; 679 detected prenatally and 830 undetected.
- Undetected preterm SGA constituted 6.7% (56/830) of undetected cases but accounted for 65% (39/60) of adverse outcomes.
- Undetected SGA had higher composite adverse outcomes than detected SGA in preterm (aOR 3.869, 95% CI 1.919–7.801) and term (aOR 3.308, 95% CI 1.236–8.855) births; in preterm infants, risks of cerebral damage, RDS, and NEC were increased.
Methodological Strengths
- Large sample size with gestational age– and delivery date–matched AGA comparators
- Multivariate logistic regression to adjust for confounders, stratified analyses by preterm versus term
Limitations
- Single-center retrospective design limits generalizability and may entail misclassification bias
- Incomplete details on prenatal detection criteria and potential residual confounding
Future Directions: Develop and validate risk-based prenatal screening algorithms for SGA, particularly for preterm gestations, and evaluate their impact on neonatal outcomes in multicenter prospective studies.
INTRODUCTION: Small for gestational age (SGA) infants face higher risk of adverse outcomes compared to appropriate for gestational age (AGA) infants. Whether undetected SGA leads to worse clinical outcomes than detected SGA remains debated. This study compared perinatal outcomes between undetected and detected SGA in preterm and term pregnancies, and identified risk factors for missed diagnoses. MATERIAL AND METHODS: Singleton deliveries > 24 weeks at Peking University Third Hospital (January 2018-June 2023) were included. In this single-center retrospective study, participants were stratified into three groups: detected SGA, undetected SGA and AGA (matched by gestational age and delivery date with undetected SGA). Analysis was conducted in preterm and term deliveries respectively. Multivariate logistic regression models were conducted to compared neonatal outcomes between detected SGA and undetected SGA. Furthermore, differences in maternal demographic and clinical characteristics between AGA and undetected SGA were analyzed. RESULTS: Among 32158 deliveries, 1509 SGA infants were identified, including 679 detected prenatally and 830 undetected. Adverse outcomes occurred in 112 and 60 cases in these groups, respectively. Notably, preterm undetected SGA, representing only 6.7% (56/830) of undetected cases, accounted for 65% (39/60) of all adverse outcomes in that group. Compared to detected SGA, undetected SGA had significantly higher rates of composite adverse outcomes in both preterm (aOR 3.869, 95% CI: 1.919-7.801) and term deliveries (aOR 3.308, 95% CI: 1.236-8.855). In preterm infants, undetected SGA specifically increased risks of neonatal cerebral damage, neonatal respiratory distress syndrome, and necrotizing enterocolitis. Analysis of risk factors for undetected SGA (vs. AGA CONCLUSION: Undetected SGA was associated with adverse neonatal outcomes. Preterm undetected SGA carried a disproportionately high morbidity burden compared to term undetected SGA. Prenatal factors, including maternal complications, umbilical cord and placental abnormalities, played a crucial role in identifying SGA.