POX Range and the Threshold for Screening Major CHD in Neonates at Different Altitudes

NCT ID: NCT04238104

Last Updated: 2021-07-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

2200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-02-01

Study Completion Date

2021-04-15

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

major CHD (Congenital Heart Disease) screening by POX (pulse oximetry) in sea-level areas is not fit for low, medium and high altitude areas, but the normal range of pulse oximetry at different altitude areas has not been studied before, so the current screening technology can only be used in sea-level areas, but not for newborns in low, medium and high altitude areas. We need to carry out a research to clarify the range of POX and make sure the threshold of POX in major CHD screening in different altitude areas of China.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

At present, the application of POX (pulse oximetry) in screening major CHD (congenital heart disease ) has been legislated in the United States. In China, the two indicators of POX plus auscultation of heart murmur for screening major CHD have also been promoted as national standards. There are differences in the POX range of newborns at different altitude areas, so the threshold of POX screening based on sea-level areas is not applicable to low, medium and high altitude areas. While the normal range of POX at different altitude areas has not been studied in detail, so the current screening strategy can only be used in sea-level areas, but not benefit newborns in low, medium and high altitude areas. In order to apply major CHD screening strategy better to cover the newborns all over the country, we need to clarify the range of POX at different altitude areas of China and make sure the threshold of POX in major CHD screening. We plan to carry out a multicenter study on the normal POX value range of healthy and asymptomatic term newborns 6-72 hours after delivery in medical centers with altitude of 500-1000; 1000-2000; 2000-3000; 3000-4000 and above 4000 meters. And compare the POX value at different altitude areas with that of newborns delivered in the maternity hospitals at sea level. And measure the POX value of newborns with major CHD in the same way. POX screening thresholds will be obtained at different altitude areas. We will test the hypothesis that POX of healthy newborns at different altitude areas is lower than that of healthy newborns at sea level, and POX threshold of major CHD screening is lower than that of sea level.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

POX Range of Healthy Newborns at Different Altitudes POX Threshold for Screening Major CHD in Neonates

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

sea level

Pulse oximetry was performed between 6 and 72 hours after delivery (measured and recorded at 6, 12, 24, 48 and 72 hours respectively). Using Masimo Radical-7 (Irvine, CA, USA) to measure. All measurements at the medical center of sea level were performed by the well-trained investigator. All major CHD infants will be measured the POX by the same way during the whole study period.

no intervention

Intervention Type OTHER

it's only observational study. No interventions.

altitude <1000

Pulse oximetry was performed between 6 and 72 hours after delivery (measured and recorded at 6, 12, 24, 48 and 72 hours respectively). Using Masimo Radical-7 (Irvine, CA, USA) to measure. All measurements at the medical center with the altitude less than 1000 metres were performed by the well-trained investigator. All major CHD infants will be measured the POX by the same way during the whole study period.

no intervention

Intervention Type OTHER

it's only observational study. No interventions.

altitude 1000-2000

Pulse oximetry was performed between 6 and 72 hours after delivery (measured and recorded at 6, 12, 24, 48 and 72 hours respectively). Using Masimo Radical-7 (Irvine, CA, USA) to measure. All measurements at the medical center with the altitude between 1000-2000 metres were performed by the well-trained investigator. All major CHD infants will be measured the POX by the same way during the whole study period.

no intervention

Intervention Type OTHER

it's only observational study. No interventions.

altitude 2000-3000

Pulse oximetry was performed between 6 and 72 hours after delivery (measured and recorded at 6, 12, 24, 48 and 72 hours respectively). Using Masimo Radical-7 (Irvine, CA, USA) to measure. All measurements at the medical center with the altitude between 2000-3000 metres were performed by the well-trained investigator. All major CHD infants will be measured the POX by the same way during the whole study period.

no intervention

Intervention Type OTHER

it's only observational study. No interventions.

altitude 3000-4000

Pulse oximetry was performed between 6 and 72 hours after delivery (measured and recorded at 6, 12, 24, 48 and 72 hours respectively). Using Masimo Radical-7 (Irvine, CA, USA) to measure. All measurements at the medical center with the altitude between 3000-4000 metres were performed by the well-trained investigator. All major CHD infants will be measured the POX by the same way during the whole study period.

no intervention

Intervention Type OTHER

it's only observational study. No interventions.

altitude 4000-5000

Pulse oximetry was performed between 6 and 72 hours after delivery (measured and recorded at 6, 12, 24, 48 and 72 hours respectively). Using Masimo Radical-7 (Irvine, CA, USA) to measure. All measurements at the medical center with the altitude between 4000-5000 metres were performed by the well-trained investigator. All major CHD infants will be measured the POX by the same way during the whole study period.

no intervention

Intervention Type OTHER

it's only observational study. No interventions.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

no intervention

it's only observational study. No interventions.

Intervention Type OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

For healthy newborns:

* Healthy, asymptomatic, singleton term infants (37-41 weeks gestation);
* Appropriate for gestational age (using the international WHO's intrauterine growth curve to evaluate);
* Only newborns with Apgar score ≥ 7 in 1 minute and 5 minutes were selected;
* There is no known congenital heart disease based on the ECHO result , no murmur, no obvious signs (no fever, no tachycardia or respiratory symptoms at the time of admission).

For major CHD newborns:

* Echocardiography clearly diagnosed the following congenital heart diseases: Aortic stenosis, Double outlet of right ventricle, Ebstein's malformation, Left cardiac hypoplasia syndrome, Aortic arch disconnection, Pulmonary atresia, Single ventricle, Tetralogy of Fallot, Complete anomalous pulmonary venous drainage, Transposition of great arteries, Tricuspid valve atresia, and Single trunk of arteries and other major CHD based on Ewer's denition.

Exclusion Criteria

For healthy newborns:

* Newborn with caesarean section; newborn with smoking mother; newborn with definite congenital heart disease before discharge.

For major CHD newborns:
Maximum Eligible Age

28 Days

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Hainan women and children medical center

UNKNOWN

Sponsor Role collaborator

People's Hospital of Xinjiang Uygur Autonomous Region

OTHER

Sponsor Role collaborator

Yan'an Affiliated Hospital of Kunming Medical University

OTHER

Sponsor Role collaborator

Qinghai Red Cross Hospital

OTHER

Sponsor Role collaborator

Tibet Autonomous Region People's Hospital

OTHER

Sponsor Role collaborator

People's Hospital of Golog Tibetan Autonomous Prefecture

UNKNOWN

Sponsor Role collaborator

People's Hospital of Naqu District, Tibet

UNKNOWN

Sponsor Role collaborator

People's Hospital of Luchun County, Yunnan Province

UNKNOWN

Sponsor Role collaborator

Children's Hospital of Fudan University

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Weili Yan, PhD

Role: STUDY_CHAIR

Epidemiology Office of Children's hospital of Fudan University

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

People's Hospital of Golog Tibetan Autonomous Prefecture

Guoluo Prefecture, , China

Site Status

Hainan women and children medical center

Haikou, , China

Site Status

Yan'an Hospital Affiliated to Kunming Medical University

Kunming, , China

Site Status

Tibet Autonomous People's Hospital

Lhasa, , China

Site Status

People's Hospital of Luchun County, Yunnan Province

Luchun, , China

Site Status

People's Hospital of Naqu District, Tibet

Naqu, , China

Site Status

Qinghai Red Cross Hospital

Qinghai, , China

Site Status

People's Hospital of Xinjiang Uygur Autonomous Region

Ürümqi, , China

Site Status

Countries

Review the countries where the study has at least one active or historical site.

China

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2019-296

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Pulse Oximetry Performance Comparison in Newborns
NCT06637917 ACTIVE_NOT_RECRUITING