Publications by authors named "L Chalak"

Background: Placental lesions are associated with worse neonatal outcomes, but their association with neonatal hypoxic-ischemic encephalopathy (HIE), including the full range of severity from mild to severe HIE, has not been well described.

Objective: To determine the association of acute and chronic placental lesions with mild versus moderate to severe HIE; secondarily, to assess the impact of multiple placental lesions on severity of HIE.

Methods: This retrospective study of prospectively collected data included neonates born at ≥36 weeks, with a birth weight of >1800 g, diagnosed with HIE between January 2012 and November 2022.

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The importance of a Neonatal Intensive Care Unit (NICU) database lies in its critical role in improving the quality of care for very preterm neonates and other high-risk newborns. These databases contain extensive information regarding maternal exposures, pregnancy complications, and neonatal care. They support quality improvement (QI) initiatives, facilitate clinical research, and track health outcomes in order to identify best practices and improve clinical guidelines.

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Background: Our objectives were to determine 1) the prevalence and description of placental pathologic lesions in pregnancies complicated by SARS-CoV-2 infection compared to healthy controls and 2) whether the prevalence and/ or pattern of placental pathologic lesions differed in the few neonates who tested positive for SARS-CoV-2 in the first 48 hours of life at a busy urban county hospital.

Methods: This study included all pregnant mothers who tested positive for SARS-CoV-2 and delivered at our institution from March 2020 to June 2021, while control placentas were collected from term pregnancies without complications.

Results: Approximately 90% (n = 380/425) of placentas from pregnancies complicated by SARS-CoV-2 infections had placental pathologic lesions, compared to 32% (n = 16/50) of controls.

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