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Temporal Artery Temperature Measurement in Neonates

Comparing Temporal Artery and Axillary Temperatures With Rectal Temperature in Neonates

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02405429
Enrollment
49
Registered
2015-04-01
Start date
2014-05-31
Completion date
2014-08-31
Last updated
2017-06-14

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

Conditions

Newborn Infant

Brief summary

The aim of this study was to evaluate the temporal artery thermometer by comparing temporal artery and axillary thermometer temperature measurements with rectal thermometer temperature measurements in neonatal patients. The investigators measured temporal artery, axillary, and rectal temperatures of 49 infants. Temporal artery temperature was measured using an infrared temporal artery thermometer, and the results with this device were compared with axillary temperature (clinical standard) and rectal temperature (gold standard). The difference between rectal and temporal artery temperatures was compared with the difference between rectal and axillary temperatures for each infant, and the data were analyzed based on weight, postmenstrual age and bed type - open crib or incubator.

Interventions

None listed

Sponsors

University of Iowa
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
No minimum to 6 Months
Healthy volunteers
Yes

Inclusion criteria

* Patients in hospital well-baby nursery or neonatal intensive care unit

Exclusion criteria

* Birth weight \<500 grams * Anal atresia * Central nervous system malformation * Hypoxic-ischemic encephalopathy * Clinical concerns for necrotizing enterocolitis or other bowel injury or discontinuity

Design outcomes

Primary

MeasureTime frameDescription
Difference Between Rectal and Axillary TemperaturesWithin 2 minutes of each otherRectal temperature minus axillary temperature
Temporal Artery TemperatureMean of 2 measurements within 2 minutes of each other and within 2 minutes of axillary and rectal temperature measurementsWith commercial infrared temporal artery thermometer
Axillary TemperatureSingle measurement within 2 minutes of temporal artery and rectal temperature measurementsWith commercial digital thermometer
Rectal TemperatureSingle measurement within 2 minutes of temporal artery and axillary temperature measurementsWith thermistor probe and telethermometer
Difference Between Temporal Artery and Rectal TemperaturesWithin 2 minutes of each otherRectal temperature minus temporal artery temperature

Participant flow

Participants by arm

ArmCount
Hospitalized Neonates
Patients in the neonatal intensive care unit or the newborn nursery
49
Total49

Baseline characteristics

CharacteristicHospitalized Neonates
Age, Categorical
<=18 years
49 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
Age, Continuous11 days
Body Weight at Time of Study2235 grams
Gestational Age34 weeks
Race and Ethnicity Not Collected— Participants
Region of Enrollment
United States
49 participants
Sex: Female, Male
Female
23 Participants
Sex: Female, Male
Male
26 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 49
other
Total, other adverse events
0 / 49
serious
Total, serious adverse events
0 / 49

Outcome results

Primary

Axillary Temperature

With commercial digital thermometer

Time frame: Single measurement within 2 minutes of temporal artery and rectal temperature measurements

Population: Hospitalized neonates

ArmMeasureValue (MEAN)Dispersion
Hospitalized NeonatesAxillary Temperature36.61 degrees CelsiusStandard Deviation 0.3
Primary

Difference Between Rectal and Axillary Temperatures

Rectal temperature minus axillary temperature

Time frame: Within 2 minutes of each other

Population: Hospitalized neonates

ArmMeasureValue (MEAN)Dispersion
Hospitalized NeonatesDifference Between Rectal and Axillary Temperatures0.21 degrees CelsiusStandard Deviation 0.26
Primary

Difference Between Temporal Artery and Rectal Temperatures

Rectal temperature minus temporal artery temperature

Time frame: Within 2 minutes of each other

Population: Hospitalized neonates

ArmMeasureValue (MEAN)Dispersion
Hospitalized NeonatesDifference Between Temporal Artery and Rectal Temperatures-0.34 degrees CelsiusStandard Deviation 0.37
Primary

Rectal Temperature

With thermistor probe and telethermometer

Time frame: Single measurement within 2 minutes of temporal artery and axillary temperature measurements

Population: Hospitalized neonates

ArmMeasureValue (MEAN)Dispersion
Hospitalized NeonatesRectal Temperature36.82 degrees CelsiusStandard Deviation 0.3
Primary

Temporal Artery Temperature

With commercial infrared temporal artery thermometer

Time frame: Mean of 2 measurements within 2 minutes of each other and within 2 minutes of axillary and rectal temperature measurements

Population: Hospitalized neonates

ArmMeasureValue (MEAN)Dispersion
Hospitalized NeonatesTemporal Artery Temperature37.16 degrees CelsiusStandard Deviation 0.36

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026