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Related Experiment Videos

Central retinal arteries in the full-term newborn: decrease in width and tortuosity during uneventful adaptation

R Fahrni, J Thalmann, J Weber

    Helvetica Paediatrica Acta
    |January 1, 1981
    PubMed
    Summary
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    Funduscopy in newborns can detect marked arterial tortuosity, indicating fetal distress. This finding suggests routine funduscopy for at-risk infants to assess adaptation after birth.

    Area of Science:

    • Ophthalmology
    • Neonatology
    • Pediatrics

    Background:

    • Neonatal adaptation involves physiological changes, including vascular adjustments.
    • Funduscopy allows visualization of retinal vasculature in newborns.

    Purpose of the Study:

    • To investigate changes in retinal artery diameter and tortuosity in newborns.
    • To correlate these vascular changes with fetal risk factors and neonatal adaptation.

    Main Methods:

    • Repeated funduscopy of 87 full-term newborns from 2 to 144 hours of life.
    • Measurement of temporal and nasal artery width and assessment of arterial tortuosity.
    • Correlation of findings with fetal risk factors and physiological measurements.

    Main Results:

    Related Experiment Videos

    • Retinal artery diameter decreased by approximately 30% during uneventful adaptation.
    • Arterial tortuosity was observed in most newborns, gradually straightening over time.
    • Marked arterial tortuosity at 2 hours of life significantly correlated with fetal risk factors.

    Conclusions:

    • Marked retinal artery tortuosity in newborns may signify previous acute fetal distress.
    • Funduscopy is a valuable tool for assessing at-risk newborns and their adaptation.
    • Routine funduscopy in high-risk infants is recommended.