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Analysis of the Early Development of the Visual Function in Extreme Premature Infants Under 28th Weeks of Gestation

NCT00768586 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 40

Last updated 2008-10-15

No results posted yet for this study

Summary

The aim of this study is to collect data on the early visual development of extreme premature infants. The method is the measurement of flash visual evoked potentials and the study population includes premature infants under the 28th weeks of gestation, who have normal cranial ultrasound examinations, normal aEEG, no clinical neurological symptoms and who have a normal ophthalmological status.

fVEP measurements were recorded from the first week of life every second week until term.

The fVEP recordings were performed in active sleep, in stable premature infants, who were continuously monitored. The Nihon Kohden Neuropack 8 was used, the stimulus frequency was 0,5 Hz, artefact free averages were analyzed.

The measurements were analyzed according to the presence and absence of known waveforms, their latencies and amplitudes. Longitudinal analysis was performed to analyse the effect of extrauterine visual development on fVEP with growing gestational ages.

Conditions

  • Vision

Sponsors & Collaborators

  • Medical University of Vienna

    lead OTHER

Principal Investigators

  • Manfred Weninger, MD, PhD. · MUV

Eligibility

Min Age
23 Weeks
Max Age
29 Weeks
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2008-02-29

Countries

  • Austria

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00768586 on ClinicalTrials.gov