Skip to content

Overnight Pulse Oximetry in Preterm Infants - The Role of Oximetry Averaging Times

The effect of shorter versus longer oximeter averaging times on desaturation events in preterm infants in NICU undergoing overnight pulse oximetry.

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ANZCTR
Registry ID
ACTRN12614000764639
Enrollment
24
Registered
2014-07-17
Start date
2014-07-21
Completion date
Unknown
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Premature infants often need to receive additional oxygen treatment. Usually this is because they have a lung condition called chronic lung disease. To ensure that the right amount of oxygen is given to them, we routinely use a sensor (or probe) that tells us the oxygen level in the baby’s blood. This is the oxygen meter (pulse oximeter); that is a devices that measures the level of oxygen in the body. This sensor does not cause any harm or discomfort to the baby. Our team of doctors and nurses use a test that we call “overnight oximetry study” or simply “ a download”. The test involves using the measurements from the oxygen meter to tell them if the baby still needs oxygen treatment. There are some standard settings (in detail, the “averaging time” of the pulse oximeter) that most hospital put on their oxygen meters. To date, there has been no study to tell us which “averaging time” is best suited for this purpose. The aim of our study is investigate which averaging time(s) is(/are) most effective for the “overnight oximetry study” in premature babies when doctors use them to check when the babies are ready to stop oxygen treatment.

Interventions

Pulse oximeter is widely used in the NICU as a way of assessing oxygenation in newborn infants. A sensor is attached to upper or lower limbs. The device utilises light in the red and near-infrared spectrum and the absorption of these two light pulses is dependant on the levels of oxygenated and deoxygenated hemoglobin in the tissue; the device algorithm subsquently converts these into a readout of arterial oxygenation. Pulse oximeter with 2 or 8 seconds averaging time will be utilised continuou

Pulse oximeter is widely used in the NICU as a way of assessing oxygenation in newborn infants. A sensor is attached to upper or lower limbs. The device utilises light in the red and near-infrared spectrum and the absorption of these two light pulses is dependant on the levels of oxygenated and deoxygenated hemoglobin in the tissue; the device algorithm subsquently converts these into a readout of arterial oxygenation. Pulse oximeter with 2 or 8 seconds averaging time will be utilised continuous over 1 night when the infant has an overnight oximetry performed.

Sponsors

Department of Paediatrics, Monash University
Lead SponsorUniversity

Eligibility

Sex/Gender
All
Age
0 to No maximum
Healthy volunteers
No

Inclusion criteria

All infants who are in the NICU at Monash Newborn born less than 32 weeks gestation who meet the ANZNN criteria for CNLD who require overnight pulse oximetry

Exclusion criteria

Where parental consent cannot be obtained

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026