Mechanical Ventilation in Preterm Infants: Neurosonographic and Developmental Studies

PEDIATRICS ◽  
1992 ◽  
Vol 90 (4) ◽  
pp. 515-522 ◽  
Author(s):  
Leonard J. Graziani ◽  
Alan R. Spitzer ◽  
Donald G. Mitchell ◽  
Daniel A. Merton ◽  
Christian Stanley ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Early Childhood ◽  
Cerebral Palsy ◽  
Developmental Delay ◽  
Preterm Infants ◽  
Intracranial Hemorrhage ◽  
Apgar Scores ◽  
Mechanically Ventilated ◽  
Increased Risk ◽  
Grade Iii

Surviving preterm infants of less than 34 weeks' gestation who were selected on the basis of serial cranial ultrasonographic findings during their nursery course had repeated neurologic and developmental examinations during late infancy and early childhood that established the presence (n = 46) or absence (n = 205) of spastic forms of cerebral palsy. Of the 205 infants without cerebral palsy, 22 scored abnormally low on standardized developmental testing during early childhood. The need for mechanical ventilation beginning on the first day of life (n = 92) was significantly related to gestational age, birth weight, Apgar scores, patent ductus arteriosus, grade III/IV intracranial hemorrhage, large periventricular cysts, and the development of cerebral palsy. In the 192 mechanically ventilated infants, vaginal bleeding during the third trimester, low Apgar scores, and maximally low Pco2 values during the first 3 days of life were significantly related to large periventricular cysts (n = 41) and cerebral palsy (n = 43), but not to developmental delay in the absence of cerebral palsy (n = 18). The severity of intracranial hemorrhage in mechanically ventilated infants was significantly associated with gestational age and maximally low measurements of Pco2 and pH, but not with Apgar scores or maximally low measurements of Po2. Logistic regression analyses controlling for possible confounding variables disclosed that Pco2 values of less than 17 mm Hg during the first 3 days of life in mechanically ventilated infants were associated with a significantly increased risk of moderate to severe periventricular echodensity, large periventricular cysts, grade III/IV intracranial hemorrhage, and cerebral palsy. Neurosonographic abnormalities were highly predictive of cerebral palsy independent of Pco2 measurements. However, neither hypocarbia nor neurosonographic abnormalities were associated with a significantly increased risk of developmental delay in the absence of cerebral palsy. In this preterm infant population, therefore, the risk factors for developmental delay differed from those predictive of spastic forms of cerebral palsy. Of the 57 ventilated preterm infants who were exposed to a maximally low Pco2 of less than 20 mm Hg at least once during the first 3 days of life, 21 developed large periventricular cysts or cerebral palsy or both. Those results suggest that prenatal and neonatal factors including the need for mechanical ventilation beginning on the first day of life and marked hypocarbia during the first 3 postnatal days are associated with an increased risk of damage to the periventricular white matter of some preterm infants. However, a causal relationship between hypocarbia and brain damage in preterm infants remains unproven.

Neurodevelopment of Preterm Infants: Neonatal Neurosonographic and Serum Bilirubin Studies

PEDIATRICS ◽  
1992 ◽  
Vol 89 (2) ◽  
pp. 229-234
Author(s):  
Leonard J. Graziani ◽  
Donald G. Mitchell ◽  
Michael Kornhauser ◽  
Frank S. Pidcock ◽  
Daniel A. Merton ◽  
...  
Keyword(s):  
Early Childhood ◽  
Cerebral Palsy ◽  
Preterm Infants ◽  
Intracranial Hemorrhage ◽  
Serum Bilirubin ◽  
Neonatal Period ◽  
Assisted Ventilation ◽  
Total Serum ◽  
Apgar Scores ◽  
Grade Iii

In this study of 249 preterm infants of less than 34 weeks's gestation, the relationships between maximal serum total bilirubin concentrations during the neonatal period, neonatal cranial ultrasonographic abnormalities, and severe neurodevelopmental sequelae are described. The subjects, who were selected on the basis of serial cranial ultrasonographic findings, had repeated neurologic and developmental examinations during late infancy and early childhood that established the presence (n = 45) or absence (n = 204) of spastic forms of cerebral palsy. Of the 204 subjects without cerebral palsy, 23 scored abnormally low on standardized developmental testing during early childhood. All but seven of the subjects with cerebral palsy had grade III/IV intracranial hemorrhage or moderate to severe periventricular echogenicity or both, ultrasonographic abnormalities that probably reflect a disruption in the blood-brain barrier as well as extravasation of blood into brain tissue; however, analysis of the data did not suggest that these cranial ultrasonographic abnormalities increased either the maximum serum bilirubin concentration during the neonatal period or the susceptibility of the subjects to neurologic damage from hyperbilirubinemia. Also, there was no evidence to suggest that bilirubinemia in the range studied (2.3 to 22.5 mg/100 mL total serum bilirubin) was causally related to cerebral palsy, early developmental delay, or the development of periventricular cysts in this population of preterm infants. Univariate analyses revealed that Apgar scores were significantly lower, while grade III/IV intracranial hemorrhage, large periventricular cysts, moderate to severe periventricular echodensity, ventriculomegaly, assisted ventilation, and bronchopulmonary dysplasia occurred significantly more often in infants with cerebral palsy than in those without cerebral palsy; however, a stepwise logistic regression revealed that of these clinical variables only large periventricular cysts, moderate to severe periventricular echodensity, and the need for assisted ventilation were associated with the occurrence of cerebral palsy at a statistically significant level. Apgar scores and average birth weight were significantly lower, and duration of assisted ventilation was significantly longer, but neurosonographic findings did not differ in the 23 developmentally delayed infants compared with the normal group.

Neonatal Neurosonographic Correlates of Cerebral Palsy in Preterm Infants

PEDIATRICS ◽  
1986 ◽  
Vol 78 (1) ◽  
pp. 88-95
Author(s):  
Leonard J. Graziani ◽  
Matthew Pasto ◽  
Christian Stanley ◽  
Frank Pidcock ◽  
Hemant Desai ◽  
...  
Keyword(s):  
Cerebral Palsy ◽  
Preterm Infants ◽  
Intracranial Hemorrhage ◽  
Motor Development ◽  
Periventricular Leukomalacia ◽  
Cyst Formation ◽  
University Hospital ◽  
Lateral Ventricles ◽  
Minimum Age ◽  
Grade Iii

Serial neurosonographic examinations are routinely performed at frequent intervals during the nursery course of all preterm infants of 33 weeks or less gestation who are admitted to the intensive care nursery of Thomas Jefferson University Hospital. After discharge, the following survivors during the past 5 years had repeated ultrasound examinations until the anterior fontanel closed and clinical assessments until the presence or absence of cerebral palsy at a minimum age of 12 months was established: (1) all infants with grade III/IV intracranial hemorrhage, periventricular echodensity and periventricular cyst formation, (2) selected infants with either normal ultrasound findings or grade I/II intracranial hemorrhage. Fifteen survivors were found to have cerebral palsy, and all had at least one of the following ultrasound abnormalities: (a) diffuse, bilateral, and multiple periventricular cysts 3 mm or more in diameter that persisted beyond term age, (b) bilateral asymmetrical dilation of the lateral ventricles following grade III intracranial hemorrhage with small periventricular cysts, and (c) ventricular porencephaly following an ipsilateral grade IV intracranial hemorrhage. The periventricular cysts were usually preceded by extensive echodensities of the white matter surrounding the lateral ventricles; these findings were suggestive of periventricular leukomalacia and were the most common abnormal findings on ultrasound in the infants with cerebral palsy. Of 124 infants without cerebral palsy, 121 had no or less severe abnormal findings on ultrasound; the exceptions were three infants with bilateral persistent large periventricular cysts who had normal motor development in late infancy.

Apgar Score and Risk of Cerebral Palsy in Preterm Infants: A Population-Based Cohort Study

2021 ◽  
Author(s):  
Damjan Osredkar ◽  
Ivan Verdenik ◽  
Anja Troha Gergeli ◽  
Ksenija Gersak ◽  
Miha Lucovnik
Keyword(s):  
Cerebral Palsy ◽  
Preterm Infants ◽  
Apgar Score ◽  
Preterm Neonates ◽  
Adjusted Relative Risk ◽  
Term Infants ◽  
Apgar Scores ◽  
Risk Of Death ◽  
Increased Risk ◽  
Minute Apgar Score

AbstractA low Apgar score is associated with increased risk of cerebral palsy (CP) in term infants, while such association remains controversial in preterm neonates. The objective of this study was to assess association between 5-minute Apgar scores and CP in different subcategories of preterm birth based on gestational age. The Slovenian National Perinatal Information System was used to identify singleton children without congenital malformations live-born at 22 to 37 weeks of gestation between 2002 and 2010. Data were linked to the Slovenian Registry of Cerebral Palsy in children born between 2002 and 2010. CP was diagnosed at a minimum of 5 years of age. Of 11,924 children included, 241 (2.0%) died before discharge and 153 (1.3%) were diagnosed with CP. Five-minute Apgar scores <7 were significantly associated with higher risk of death or CP (compared with scores ≥9) at all preterm gestations. CP alone was associated with Apgar scores <7 only at moderately or late preterm gestation (32–36 weeks) (adjusted relative risk [aRR]: 8.27; 95% confidence interval [CI]: 1.87–36.64 for scores 0–4 and aRR: 4.96; 95% CI 1.89–13.06 for scores 5–6). In conclusion, a low 5-minute Apgar score was associated with combined outcome of neonatal death or CP in all preterm births, while in surviving preterm infants at >32 weeks a low 5-minute Apgar score was associated with CP.

scholarly journals Lack of Progression of Intraventricular Hemorrhage in Premature Infants: Implications for Head Ultrasound Screening

2019 ◽  
Author(s):  
Lawrence Rhein ◽  
Jaclyn Daigneault ◽  
Alexandra Dube ◽  
Heather White ◽  
Qiming Shi ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Preterm Infants ◽  
Premature Infants ◽  
Intraventricular Hemorrhage ◽  
Medical Center ◽  
Prolonged Mechanical Ventilation ◽  
Ultrasound Screening ◽  
Increased Risk ◽  
Grade Iii ◽  
Severe Grade

Abstract Background: Premature infants are known to be at increased risk for intraventricular hemorrhage (IVH) in the first week of life. IVH may be “mild” (grade I or II) or “severe” (grade III or IV). A classification of mild is less frequently associated with later morbidity. Severe grade IVH may be associated with death or severe neurodevelopmental disability. Mild IVH is generally considered a static, non-progressive disease. Thus, infants that do not present with IVH or who present with mild IVH are unlikely to advance to severe IVH. Consequently, after initial imaging demonstrates a normal result, subsequent head ultrasounds (HUS) may be unnecessary.Methods: This is a retrospective, single-center study. We identified all preterm infants with birth gestational age </= 32 0/7 weeks admitted to the University of Massachusetts Memorial Medical Center Neonatal Intensive Care Unit between January 1, 2011 and December 31, 2016 who received a head ultrasound (HUS) during hospitalization. Each individual ultrasound was classified according to the attending radiologist’s documentation. Grades of IVH were defined per the Papile classification. Initial HUS was defined as HUS performed on day of life 3-10. Every subsequent HUS throughout hospitalization was read and recorded.Results: We identified 682 eligible preterm infants. Of these, 88 were excluded for lack of HUS data, 237 had initial HUS out of inclusion timing window (day of life 3-10), and 4 were excluded for other conditions associated with intraventricular hemorrhage, leaving 353 infants for analysis. Initial findings of severe IVH were relatively rare in this cohort. Of the 343 (97%) infants who had mild IVH (grade II or less) at time of initial screening, only 4 (1.2%) progressed to severe (grade III or IV). Each of these infants required mechanical ventilation for at least 40 days.Conclusions: Based on the results of this analysis, premature infants who have a normal (no IVH) HUS or mild IVH (grade I or II) on initial routine screening HUS without other risk factors may not require follow-up HUS. Infants with prolonged mechanical ventilation may require further screening despite reassuring initial HUS findings.

scholarly journals 37 Growth and neurodevelopment in early childhood of preterm infants with complex congenital heart defects following open cardiac surgery

2020 ◽  
Vol 25 (Supplement_2) ◽  
pp. e14-e15
Author(s):  
Po-Yin Cheung ◽  
Morteza Hajihosseini ◽  
Irina Dinu ◽  
Heather Switzer ◽  
Charlene M T Robertson
Keyword(s):  
Early Childhood ◽  
Hearing Loss ◽  
Cardiac Surgery ◽  
Cerebral Palsy ◽  
Preterm Infants ◽  
Congenital Heart Defects ◽  
Congenital Heart ◽  
Heart Defects ◽  
Neurodevelopmental Outcome ◽  
Neurodevelopmental Outcomes

Abstract Background Compared with those born at term gestation, infants with complex congenital heart defects (CCHD) who were delivered before 37 weeks of gestational age and received neonatal open cardiac surgery (OHS) have poorer neurodevelopmental outcomes in early childhood. Specific details related to the neurodevelopmental outcome of these infants remain unpublished. Objectives To describe the growth, disability, functional, and neurodevelopmental outcome in early childhood of preterm infants (born at &lt;37+0 weeks gestation) with CCHD and neonatal OHS. Design/Methods We studied all infants with CCHD who received OHS within 6 weeks of corrected age between 1996 and 2016. In the Western Canadian Complex Pediatric Therapies Follow-up Program, comprehensive neurodevelopmental assessments at a corrected age of 18-24 months were done by multidisciplinary teams at the original referral sites. In addition to demographic and clinical data, standardized age-appropriate outcome measures included physical growth with calculated Z-scores, disabilities including cerebral palsy, visual impairment, sensorineural hearing loss; adaptive function (Adaptive Behavioural Assessment System-II); and cognitive, language, and motor skills (Bayley Scales of Infant and Toddler Development-III). Results From 1996 to 2016, 115 preterm infants (34±2 weeks gestation, 2339±637g, 64% males) with CCHD had OHS with 11(10%) deaths before first discharge and 21 (18%) by 2 years. Prior to the first surgery, 7 (6%) neonates had cerebral injuries. Overall, 7 had necrotizing enterocolitis; none had retinopathy of prematurity. All 94 surviving infants received comprehensive evaluation at 2 years corrected age; Eighteen (19%) had congenital syndromes who had worse functional and neurodevelopmental outcomes compared to those (n=76) without syndromal abnormalities (SA) (Table). Conclusion For preterm neonates with CCHD and early OHS, the mortality was significant, but the short-term neonatal morbidity was not increased. Compared with published preterm outcomes, the early outcome suggests more cerebral palsy but not sensorineural hearing loss, and greater neurodevelopmental delay. This information is important for management care of the infants, parental counselling and the decision-making process.

scholarly journals Neuromonitoring of delirium with quantitative pupillometry In sedated mechanically ventilated critically ill patients

2020 ◽  
Author(s):  
Eva Favre ◽  
Adriano Bernini ◽  
Paola Morelli ◽  
Jerôme Pasquier ◽  
John-Paul Miroz ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Brain Injury ◽  
Critically Ill ◽  
Critically Ill Patients ◽  
Potential Utility ◽  
Icu Patients ◽  
Mechanically Ventilated ◽  
Increased Risk ◽  
Infrared Pupillometry ◽  
Icu Delirium

Abstract Background. Intensive care unit (ICU) delirium is a frequent secondary neurological complication in critically ill patients undergoing prolonged mechanical ventilation. Quantitative pupillometry is an emerging modality for the neuromonitoring of primary acute brain injury, but its potential utility in patients at risk of ICU delirium is unknown. Methods. This was an observational cohort study of medical-surgical ICU patients, without acute or known primary brain injury, who underwent sedation and mechanical ventilation for at least 48 hours. Starting at day 3, automated infrared pupillometry – blinded to ICU caregivers – was used for repeated measurement of the pupillary function, including quantitative pupillary light reflex (q-PLR, expressed as % pupil constriction to a standardized light stimulus) and constriction velocity (CV, mm/sec). The relationship between delirium, using the CAM-ICU score, and quantitative pupillary variables was examined. Results. A total of 59/100 patients had ICU delirium, diagnosed at a median 8 (5-13) days from admission. Compared to non-delirious patients, subjects with ICU delirium had lower values of q-PLR (25 [19-31] vs. 20 [15-28] %) and CV (2.5 [1.7-2.8] vs. 1.7 [1.4-2.4] mm/sec) at day 3, and at all additional time-points tested ( p <0.05). After adjusting for the SOFA score and the cumulative dose of analgesia and sedation, lower q-PLR was associated with an increased risk of ICU delirium (OR 1.057 [1.007-1.113] at day 3; p =0.03). Conclusions. Sustained abnormalities of quantitative pupillary variables at the early ICU phase correlate with delirium and precede clinical diagnosis by a median 5 days. These findings suggest a potential utility of quantitative pupillometry in sedated mechanically ventilated ICU patients at high risk of delirium.

scholarly journals Increased risk of intracranial hemorrhage in preterm infants with OPRM1 gene A118G polymorphism

2019 ◽  
Vol 7 (18) ◽  
pp. 478-478 ◽  
Author(s):  
Xin-Ru Cheng ◽  
Pei-Ge Xia ◽  
Zan-Yang Shi ◽  
Qian-Ya Xu ◽  
Cheng-Han Luo ◽  
...  
Keyword(s):  
Preterm Infants ◽  
Intracranial Hemorrhage ◽  
Oprm1 Gene ◽  
Increased Risk ◽  
A118g Polymorphism

23 Pulmonary Hypertension Associated with Bronchopulmonary Dysplasia and Neurodevelopmental Outcomes: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 26 (Supplement_1) ◽  
pp. e16-e17
Author(s):  
Soumya Thomas ◽  
Prashanth Murthy ◽  
Amuchou Soraisham ◽  
Abhay Lodha
Keyword(s):  
Systematic Review ◽  
Pulmonary Hypertension ◽  
Cerebral Palsy ◽  
Cohort Studies ◽  
Quality Assessment ◽  
Developmental Delay ◽  
Bronchopulmonary Dysplasia ◽  
Neurodevelopmental Outcomes ◽  
Increased Risk ◽  
The Impact

Abstract Primary Subject area Neonatal-Perinatal Medicine Background Pulmonary Hypertension (PH) is estimated to occur in 1 in 4 infants with Bronchopulmonary Dysplasia (BPD). The impact of PH in infants with BPD on their neurodevelopmental (ND) outcomes is uncertain. Objectives This systematic review aims to evaluate whether PH in infants with BPD is associated with ND delay. Design/Methods A systematic literature search was performed to identify studies that reported ND outcomes of infants with BPD (based on NIH definition) and PH (based on echocardiographic findings of PH at 36 weeks PMA). The primary outcome was ND delay in infants with pulmonary hypertension associated with BPD compared with BPD alone. Standardized developmental tests evaluated ND outcomes at 18-24 months corrected age (CA) and three years of age. Quality assessment of the studies was done using the Newcastle-Ottawa Quality Assessment for Cohort studies. Results Three retrospective cohort studies met the inclusion criteria. Two studies reported ND outcomes based on Bayley Scales of Infant and Toddler Development-III Edition in cognitive, language, and motor domains at 18-24 months CA (Table 1 and Figure 1). One study reported outcomes at 3 years, including overall developmental delay (Kyoto Scale of Psychological Development [KSPD] scores &lt; 70) and cerebral palsy. The quality of all 3 studies was rated between good, fair, and poor. Pooled data from the 2 studies reporting outcomes at 18-24 months showed no difference between the 2 infant groups for Bayley cognitive score &lt; 85 (Odds ratio [OR]: 3.78; 95% CI 0.87-16.52), Bayley language score &lt; 85 (OR: 1.19; 95% CI0.57-2.49), and Bayley motor score &lt; 85 (OR: 2.04; 95% CI 0.89-4.67). At 3 years of age, children in the BPD-PH group had an increased risk of developmental delay (DQ &lt; 70 in all areas) compared with the BPD group (OR: 4.37; 95% CI 1.16-16.46), but no difference in the risk of cerebral palsy (OR: 0.57; 95%0.03-12.39). Conclusion PH in BPD is not associated with a developmental delay compared to BPD alone at 18-24 months CA. However, a single study showed infants in BPD-PH had delayed development at 3 years of age. A large prospective cohort study with longer multidisciplinary follow-up is required to confirm this.

scholarly journals Outcomes of intraventricular hemorrhage and posthemorrhagic hydrocephalus in a population-based cohort of very preterm infants born to residents of Nova Scotia from 1993 to 2010

2015 ◽  
Vol 15 (6) ◽  
pp. 580-588 ◽  
Author(s):  
Julia A. E. Radic ◽  
Michael Vincer ◽  
P. Daniel McNeely
Keyword(s):  
Cerebral Palsy ◽  
Nova Scotia ◽  
Preterm Infants ◽  
Selection Bias ◽  
Population Based ◽  
Posthemorrhagic Hydrocephalus ◽  
Very Preterm Infants ◽  
Very Preterm ◽  
Increased Risk ◽  
Csf Shunting

OBJECT Intraventicular hemorrhage (IVH) is a common complication of preterm birth, and the prognosis of IVH is incompletely characterized. The objective of this study was to describe the outcomes of IVH in a population-based cohort with minimal selection bias. METHODS All very preterm (≥ 30 completed weeks) patients born in the province of Nova Scotia were included in a comprehensive database. This database was screened for infants born to residents of Nova Scotia from January 1, 1993, to December 31, 2010. Among very preterm infants successfully resuscitated at birth, the numbers of infants who died, were disabled, developed cerebral palsy, developed hydrocephalus, were blind, were deaf, or had cognitive/language scores assessed were analyzed by IVH grade. The relative risk of each outcome was calculated (relative to the risk for infants without IVH). RESULTS Grades 2, 3, and 4 IVH were significantly associated with an increased overall mortality, primarily in the neonatal period, and the risk increased with increasing grade of IVH. Grade 4 IVH was significantly associated with an increased risk of disability (RR 2.00, p < 0.001), and the disability appeared to be primarily due to cerebral palsy (RR 6.07, p < 0.001) and cognitive impairment (difference in mean MDI scores between Grade 4 IVH and no IVH: −19.7, p < 0.001). No infants with Grade 1 or 2 IVH developed hydrocephalus, and hydrocephalus and CSF shunting were not associated with poorer outcomes when controlling for IVH grade. CONCLUSIONS Grades 1 and 2 IVH have much better outcomes than Grades 3 or 4, including a 0% risk of hydrocephalus in the Grade 1 and 2 IVH cohort. Given the low risk of selection bias, the results of this study may be helpful in discussing prognosis with families of very preterm infants diagnosed with IVH.

scholarly journals Intubation-Surfactant: Extubation on Continuous Positive Pressure Ventilation. Who Are the Best Candidates?

2016 ◽  
Vol 2 (2) ◽  
pp. 73-79 ◽  
Author(s):  
Maria Livia Ognean ◽  
Silvia-Maria Stoicescu ◽  
Oana Boantă ◽  
Leonard Năstase ◽  
Carmen Gliga ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Birth Weight ◽  
Respiratory Distress Syndrome ◽  
Respiratory Distress ◽  
Preterm Infants ◽  
Distress Syndrome ◽  
Peripheral Oxygen Saturation ◽  
Apgar Scores ◽  
Group 2 ◽  
Group 1

Abstract Introduction: Respiratory distress syndrome (RDS) continues to be the leading cause of illness and death in preterm infants. Studies indicate that INSURE strategy (INtubate-SURfactant administration and Extubate to nasal continuous positive airway pressure [nCPAP]) is better than mechanical ventilation (MV) with rescue surfactant, for the management of respiratory distress syndrome (RDS) in very low birth weight (VLBW) neonates, as it has a synergistic effect on alveolar stability. Aim of the study: To identify the factors associated with INSURE strategy failure in preterm infants with gestational age (GA) ≤ 32 weeks. Materials and Methods: This was a retrospective cohort study, based on data collected in the Romanian National Registry for RDS patients by three regional (level III) centers between 01.01.2010 and 31.12.2011. All preterm infants of ≤ 32 weeks GA were included. Prenatal and neonatal information were compared between (Group 1), the preterm infants successfully treated using INtubation-SURfactant-Extubation on nasal CPAP (INSURE) strategy and (Group 2), those who needed mechanical ventilation within seventy two hours after INSURE. Results: A total of 637 preterm infants with GA ≤ 32 weeks were included in the study. INSURE strategy was performed in fifty seven cases (8.9%) [Group 1] and was successful in thirty one patients (54.4%). No differences were found as regards the studied prenatal and intranatal characteristics between (Group 1) and Group 2 who needed mechanical ventilation. Group 2 preterm infants who needed mechanical ventilation within 72 hours after INSURE had significantly lower mean Apgar scores at 1 and 5 minutes and lower peripheral oxygen saturation (SpO2) during resuscitation at birth (p<0.05). Successful INSURE strategy was associated with greater GA, birth weight (BW), fraction of inspired oxygen (FiO2) during resuscitation, and an increased mean dose of surfactant but these associations were not statistically significant (p>0.5). Conclusion: In preterm infants ≤ 32 weeks gestation, increased INSURE failure rates are associated with complicated pregnancies, significantly lower Apgar scores at 1 and 5 minutes, and lower peripheral oxygen saturation during resuscitation.

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