Electrical Impedance Tomography (EIT) is a non-invasive imaging technique that can measure lung function in real time. This study will follow premature infants to see if EIT can help predict which infants will be successful in weaning off respiratory support by 32-33 weeks gestational age. If successful, EIT could be used to develop new guidelines for respiratory support in premature infants.
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EIT Metric Global Inhomogeneity Index at 31 Weeks Post Menstrual Age in Those Successful in Discontinuation of Non-invasive Ventilation at 32 Weeks Post Menstrual Age.
Timeframe: 3-hour continuous measurement semi-weekly from 28+0/7 weeks or 7 days postnatally if older than 27+1/7 weeks birth gestational age to establish baseline. Comparative measurement obtained between 30+5/7 and 31+2/7 weeks postmenstrual age=up to 1-3 weeks.
EIT Metric Global Inhomogeneity Index at 31 Weeks Post Menstrual Age in Those Unsuccessful in Discontinuation of Non-invasive Ventilation at 32 Weeks Post Menstrual Age.
Timeframe: 3-hour continuous measurement semi-weekly from 28+0/7 weeks or 7 days postnatally if older than 27+1/7 weeks birth gestational age to establish baseline. Comparative measurement obtained between 30+5/7 and 31+2/7 weeks postmenstrual age=up to 1-3 weeks.
EIT Metric Functional Lung Space at 31 Weeks Post Menstrual Age in Those Successful in Discontinuation of Non-invasive Ventilation at 32 Weeks Post Menstrual Age.
Timeframe: 3-hour continuous measurement semi-weekly from 28+0/7 weeks or 7 days postnatally if older than 27+1/7 weeks birth gestational age to establish baseline. Comparative measurement obtained between 30+5/7 and 31+2/7 weeks postmenstrual age=up to 1-3 weeks.
EIT Metric Functional Lung Space at 31 Weeks Post Menstrual Age in Those Unsuccessful in Discontinuation of Non-invasive Ventilation at 32 Weeks Post Menstrual Age.
Timeframe: 3-hour continuous measurement semi-weekly from 28+0/7 weeks or 7 days postnatally if older than 27+1/7 weeks birth gestational age to establish baseline. Comparative measurement obtained between 30+5/7 and 31+2/7 weeks postmenstrual age=up to 1-3 weeks.