Skip to content

Pregnancy Outcomes According to the Gestational Age of Acquiring COVID-19

Pregnancy Outcomes According to the Gestational Age of Acquiring COVID-19 : an International Case-control Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04779749
Enrollment
10925
Registered
2021-03-03
Start date
2020-12-08
Completion date
2021-09-01
Last updated
2021-09-02

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

Conditions

Covid19

Brief summary

A new coronavirus, called severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) appeared in Wuhan, China and it arrived to Europe 2-3 months later. It infected millions of persons and led to the death of thousands until May 2020 where numbers of infections per week decreased significantly. However, starting September, number of infections started to escalate again and continued to rise until now. Hundreds of good quality articles were published during this period to study the relationship and effects of this virus on pregnancy and vice versa, as well as to determine the adverse neonatal and obstetrical outcomes following the infection. In a case-control study using propensity score matching at the level of age, body mass index and comorbidities (diabetes, hypertension, asthma), pregnant women over 20 week's gestation had significantly higher risk for intensive care unit stay, endotracheal intubation, hospitalization for disease related symptoms and need for oxygen therapy. A new systematic review also demonstrated increased risk for ICU admission in pregnant women compared to non-pregnant women and to non-infected pregnant women. On the other hand, many researchers have demonstrated that the rates of preterm delivery and cesarean delivery have increased as well, others reported a close relation between SARS-CoV2 infection and preeclampsia or preeclampsia like condition. Enormous effort was done in order to understand adverse outcomes related to this infection, however, most studies included patients in the third or late second trimester. Few studies stratified adverse outcomes of the patients according to the trimester of infection.

Interventions

Data extraction from medical files

Sponsors

Brugmann University Hospital
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Pregnant women with viable fetus after 10 weeks' gestation and known pregnancy outcome during the period starting on February 1st 2020 and ending on November 30th 2020.

Exclusion criteria

All ongoing pregnancies, those with unknown outcomes, those terminated medically or voluntary, as well as patients with spontaneous abortion before the 11th gestational week.

Design outcomes

Primary

MeasureTime frameDescription
Neonatal death5 minutes
Number of participants with Cesarean delivery (CD)5 minutesNumber of participants with Cesarean delivery (CD)
Percentage of participants with Cesarean delivery (CD)5 minutesPercentage of participants with Cesarean delivery (CD)
Deep venous thrombosis5 minutesdiagnosed by imaging tools such as venous Doppler ultrasound of the lower limbs
Pulmonary embolism5 minutesdiagnosed by imaging tools such as angio-CT scan of the thorax.
Pregnancy loss at less than 24 weeks' gestation5 minutes
Intrauterine Fetal Demise (IUFD)5 minutesPregnancy loss at 24 weeks or more, or the delivery of a neonate weighing more than 500 g
Maternal death5 minutesMaternal death
Low birth weight5 minutesbirth weight at less than 2500g
Number of participants with Neonatal intensive care unit (NICU) admission5 minutesNumber of participants with Neonatal intensive care unit (NICU) admission
Percentage of participants with Neonatal intensive care unit (NICU) admission5 minutesPercentage of participants with Neonatal intensive care unit (NICU) admission
Number of participants with APGAR score (Activity, Pulse, Grimace, Appearance, Respiration score) at 5 minutes < 7:5 minutesThe score minimum is 0 and maximum is 10. Higher score means better outcome.
Percentage of participants with APGAR score (Activity, Pulse, Grimace, Appearance, Respiration score) at 5 minutes < 7:5 minutesThe score minimum is 0 and maximum is 10. Higher score means better outcome.
Number of participants with Respiratory distress at birth5 minutesNumber of participants with Respiratory distress at birth
Percentage of participants with Respiratory distress at birth5 minutesPercentage of participants with Respiratory distress at birth
Preterm delivery5 minutesDelivery at a gestational age \< 37 weeks
Preeclampsia5 minutesPreeclampsia is defined as elevated blood pressure (Systolic blood pressure ≥140 mmHg or diastolic blood pressure ≥90 mmHg on at least 2 occasions at least 4 hours apart after 20 weeks of gestation in a previously normotensive patient) and the new onset of 1 or more of the following: * Proteinuria ≥0.3 g in a 24-hour urine specimen or protein/creatinine ratio ≥0.3 (mg/mg) (30 mg/mmol) in a random urine specimen or dipstick ≥2+ if a quantitative measurement is unavailable * Platelet count \<100,000/microL * Serum creatinine \>1.1 mg/dL (97.2 micromol/L) or doubling of the creatinine concentration in the absence of other renal disease * Liver transaminases at least twice the upper limit of the normal concentrations for the local laboratory * Pulmonary edema * New-onset and persistent headache not accounted for by alternative diagnoses and not responding to usual doses of analgesics * Visual symptoms (eg, blurred vision, flashing lights or sparks, scotomata)
Eclampsia5 minutesEclampsia is defined by the occurrence of a grand mal seizure in a woman with preeclampsia in the absence of other neurologic conditions that could cause seizure.
Hemolysis Elevated Liver enzymes Low Platelets Syndrome (HELLP)5 minutesHELLP syndrome is considered to be a serious complication or variant of preeclampsia in pregnant women.

Secondary

MeasureTime frameDescription
Percentage of participants with Delivery < 32 weeks5 minutes
Number of participants with Spontaneous delivery < 37 weeks5 minutes
Percentage of participants with Spontaneous delivery < 37 weeks5 minutes
Number of participants with Fetal distress5 minutesreferred to bradycardia, recurrent late or variable deceleration on antepartum or intrapartum cardiotocogram.
Percentage of participants with Fetal distress5 minutesreferred to bradycardia, recurrent late or variable deceleration on antepartum or intrapartum cardiotocogram.
Number of participants with Unscheduled cesarean delivery5 minutes
Percentage of participants with Unscheduled cesarean delivery5 minutes
Postpartum hemorrhage5 minutesdefined as the estimated blood loss of \> 500 mL
Number of participants with Intraventricular hemorrhage5 minutes
Percentage of participants with Intraventricular hemorrhage5 minutes
Umbilical cord pH5 minutes
Small for gestational age (SGA)5 minutesit refers to an estimated fetal weight of less than the 10th percentile
Large for gestational age (LGA)5 minutesit refers to an estimated fetal weight of more than the 95th percentile
Number of participants with Delivery < 32 weeks5 minutes

Countries

Belgium, France, Italy

Outcome results

None listed

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