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Impact of Heart Rate Characteristics Monitoring in Neonates

Impact of Heart Rate Characteristics Monitoring in Neonates

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00307333
Acronym
HeRO
Enrollment
3003
Registered
2006-03-27
Start date
2005-08-31
Completion date
2011-05-31
Last updated
2013-05-27

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

Conditions

Sepsis

Keywords

very low birth weight infants, heart rate characteristics

Brief summary

Hypothesis: Fewer neonates managed using information from heart rate characteristics (HRC) will require intubation and mechanical ventilation as a result of sepsis and sepsis-like illness. Infants will be randomly assigned to one of two groups. One group of infants will have the HRC index known to the physicians caring for them, and physicians will use the HRC index as they desire to aid in clinical management. Infants in the other group will have the HRC index recorded, but this information will not be displayed to the physicians caring for the infants.

Detailed description

Following randomization, infants will be managed as usual practice. The treating physicians of the HRC-display group will be able to utilize the HRC score to assist in the care of the infant. The physicians of the no-display group will provide care as per standard. Clinical symptoms will be treated according to the medical discretion of each physician. Cultures will be obtained and antibiotics administered as per the medical discretion of the physicians. Clinical, culture results, antibiotic administration, ventilator use, and outcome at 120 days data will be collected on the infants as well as their HRC score calculated by the HeRO heart rate characteristics monitor.

Interventions

DEVICEHeRO heart rate characteristics monitor

24 hour continuous HRC monitoring with display

Sponsors

National Institutes of Health (NIH)
CollaboratorNIH
Medical Predictive Science Corporation
CollaboratorUNKNOWN
University of Virginia
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
1 Days to 32 Weeks
Healthy volunteers
No

Inclusion criteria

* Infants admitted to NICU * Birth weight \< 1500 grams * Gestational age \< or = 32 weeks * Informed consent obtained from parent

Exclusion criteria

* Evidence of sustained cardiac arrhythmia * Use of an electronic pacemaker

Design outcomes

Primary

MeasureTime frame
Number of Ventilator-free Days120 days

Secondary

MeasureTime frame
Duration of Hospital Stay120 days
Days on Antibiotics120 days
Mortality120 days

Countries

United States

Participant flow

Participants by arm

ArmCount
Intervention
Very low birth weight infants with their HRC index continuously displayed. Clinicians can utilize the HRC score to develop treatment plan.
1,511
Control
Very low birth weight infants for whom the HRC index is not displayed. Infants receive standard of care treatment.
1,492
Total3,003

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up113

Baseline characteristics

CharacteristicControlInterventionTotal
Age, Categorical
<=18 years
1492 Participants1511 Participants3003 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
0 Participants0 Participants0 Participants
Age Continuous0.54 years
STANDARD_DEVIATION 0.054
0.54 years
STANDARD_DEVIATION 0.054
0.54 years
STANDARD_DEVIATION 0.054
Region of Enrollment
United States
1492 participants1511 participants3003 participants
Sex: Female, Male
Female
767 Participants791 Participants1558 Participants
Sex: Female, Male
Male
725 Participants720 Participants1445 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 1,5000 / 1,489
serious
Total, serious adverse events
122 / 1,500152 / 1,489

Outcome results

Primary

Number of Ventilator-free Days

Time frame: 120 days

ArmMeasureValue (MEAN)Dispersion
InterventionNumber of Ventilator-free Days95.9 daysStandard Deviation 35.1
ControlNumber of Ventilator-free Days93.6 daysStandard Deviation 37.8
p-value: 0.08t-test, 2 sided
Secondary

Days on Antibiotics

Time frame: 120 days

ArmMeasureValue (MEAN)Dispersion
InterventionDays on Antibiotics15.7 daysStandard Deviation 19.4
ControlDays on Antibiotics15.0 daysStandard Deviation 19.1
p-value: 0.31t-test, 2 sided
Secondary

Duration of Hospital Stay

Time frame: 120 days

ArmMeasureValue (MEAN)Dispersion
InterventionDuration of Hospital Stay59.6 daysStandard Deviation 33.7
ControlDuration of Hospital Stay58.7 daysStandard Deviation 34.5
p-value: 0.47t-test, 2 sided
Secondary

Mortality

Time frame: 120 days

ArmMeasureValue (NUMBER)
InterventionMortality122 participants
ControlMortality152 participants
95% CI: [0.61, 0.99]

Source: ClinicalTrials.gov · Data processed: Mar 6, 2026