Long-term Respiratory Complications in Infants With Perinatal COVID-19

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

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Recruitment Status

COMPLETED

Total Enrollment

40 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-06-07

Study Completion Date

2025-05-30

Brief Summary

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Study outcomes and endpoints:

* Primary outcome: to assess clinical characteristics of infants with confirmed COVID-19 infection at birth and to evaluate long-term respiratory consequences of neonatal COVID-19 infection.
* Secondary outcome: to evaluate the prevalence and natural history of lung function impairment among infants with confirmed COVID-19 compared to infants with no history of COVID-19. To this end, infants will undergo pulmonary function testing (PFT) with the Exhalyzer D device (Eco Medics, Switzerland).

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Detailed Description

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In this prospective, observational longitudinal study, infants will undergo clinical and growth assessment at 6 and 12 months' follow-up. Respiratory complications, such as wheezing, infections, chronic cough will be recorded along with hospital admissions and drug prescription or use.

Infants will undergo PFT with the infants in the supine position, during quiet, natural sleep, according to American Thoracic Society/European Respiratory Society recommendations with measurement of lung volumes, flow, functional residual capacity, time to peak tidal expiratory flow/expiratory time ratio (tPTEF/tE)10. Lung ultrasound will be performed to rule out lung abnormalities. After allowing adaptation to the mask, the investigators will record tidal breathing, flow volume loops for \>2 minutes or \>20 artifact-free breaths. Using commercially available software (Spiroware, Ecomedics), the investigators will extract tidal breathing parameters: ratio of time to reach peak tidal expiratory flow to expiratory time (tPTEF/tE), tidal volume (VT), and respiratory rate (RR). tPTEF/tE is a reproducible and reliable marker of airway obstruction, can detect severe expiratory airway obstruction in infants with respiratory complaints and is associated with subsequent wheezing in infancy.

Appropriate statistical methods will be used to describe clinical characteristics of patients and compare groups (T-test, Mann-Whitney test, chi-squared test, multivariate analysis, mixed models depending on data distribution - evaluated with Shapiro-Wilk test - and data characteristics).

Conditions

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COVID-19 Infant, Newborn, Diseases Respiratory Function Tests

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Cases

Infants with confirmed neonatal COVID-19 infection

Pulmonary function testing device

Intervention Type DIAGNOSTIC_TEST

Patients will undergo pulmonary function tests with the Exhalyzer D (Ecomedics, Switzerland) device. This device consists of 1) an ultrasonic flow measuring system for measuring flow, volume and molecular mass, 2) a nitrogen washout system to measure functional residual capacity (FRC) and other indices, 3) a carbon dioxide infrared measurement device for monitoring the level of carbon dioxide in exhaled breath.

Controls

Infants born to mothers with no history of COVID-19 infection during pregnancy and no neonatal COVID-19 infection

Pulmonary function testing device

Intervention Type DIAGNOSTIC_TEST

Patients will undergo pulmonary function tests with the Exhalyzer D (Ecomedics, Switzerland) device. This device consists of 1) an ultrasonic flow measuring system for measuring flow, volume and molecular mass, 2) a nitrogen washout system to measure functional residual capacity (FRC) and other indices, 3) a carbon dioxide infrared measurement device for monitoring the level of carbon dioxide in exhaled breath.

Interventions

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Pulmonary function testing device

Patients will undergo pulmonary function tests with the Exhalyzer D (Ecomedics, Switzerland) device. This device consists of 1) an ultrasonic flow measuring system for measuring flow, volume and molecular mass, 2) a nitrogen washout system to measure functional residual capacity (FRC) and other indices, 3) a carbon dioxide infrared measurement device for monitoring the level of carbon dioxide in exhaled breath.

Intervention Type DIAGNOSTIC_TEST