COVID-19 Management in Pregnant Women
General Principles
- Pregnant women with COVID-19 should receive essential antenatal and postnatal care with appropriate precautions, while considering thromboprophylaxis and monitoring for complications including pulmonary embolism and sepsis, as recommended by the British Medical Journal 1, 2
- Routine antenatal and postnatal care should continue for pregnant women, with modifications to reduce infection risk; women should attend appointments unless they have suspected or confirmed COVID-19 requiring self-isolation, according to the British Medical Journal 1, 3
- Consider differential diagnoses such as pulmonary embolism and sepsis when evaluating pregnant women with COVID-19 symptoms, as suggested by the British Medical Journal 1, 2
- After 28 weeks of pregnancy, social distancing should be observed more stringently due to increased vulnerability, as recommended by the British Medical Journal 2, 3
- Mental health assessment should be conducted during every consultation, with appropriate referrals made as needed, according to the British Medical Journal 1, 3
Thromboprophylaxis
- COVID-19 increases thromboembolism risk, which is already elevated in pregnancy (hypercoagulable state), as reported by the British Medical Journal and the Journal of Thrombosis and Haemostasis 1, 4
- Low molecular weight heparin should be considered for pregnant women with COVID-19, with dosing based on disease severity, timing of delivery, inpatient/outpatient status, and underlying comorbidities, as recommended by the Journal of Thrombosis and Haemostasis 4
- Monitor coagulation parameters carefully, noting that pregnancy alters normal ranges, with PT and APTT ratios ≥1.5 used as cut-off for coagulopathy, as suggested by the Journal of Thrombosis and Haemostasis 4
- Fibrinogen levels require individualized assessment, with attention to hypofibrinogenemia which can be particularly dangerous in obstetric settings, according to the Journal of Thrombosis and Haemostasis 4
Antenatal Care
- For confirmed COVID-19 cases, refer women for fetal growth surveillance via ultrasound 14 days after symptom resolution, as recommended by the British Medical Journal 1, 2
- Carbon monoxide monitoring should be suspended during the pandemic, according to the British Medical Journal 1, 3
Intrapartum Care
- Continuous electronic fetal monitoring is recommended during labor for all cases of suspected or confirmed COVID-19, as suggested by the British Medical Journal 1, 5
- Healthcare providers must wear appropriate personal protective equipment (PPE) when treating patients with suspected or confirmed COVID-19, which may cause delays in emergency situations, as recommended by the British Medical Journal 1, 5
- Nitrous oxide (Entonox) can be used with a single patient microbiological filter, according to the British Medical Journal 1, 5
- No specific mode of birth is recommended based on COVID-19 status alone, but birthing pools should be avoided for women with suspected or confirmed COVID-19, as suggested by the British Medical Journal 1, 6
Critical Care Management
- In case of maternal cardiac arrest, high-quality CPR with lateral uterine displacement is essential, and perimortem cesarean delivery should be considered within 5 minutes if indicated, as recommended by the American Heart Association, published in Circulation 7
Postpartum Care
- Breastfeeding is encouraged as benefits outweigh the risks of infection transmission from mother to infant, according to the British Medical Journal 1, 5
- Mothers who test positive for COVID-19 and their healthy babies do not require separation, as suggested by the British Medical Journal 1, 5
Management of COVID-19 in Pregnant Women
Thromboprophylaxis Considerations
- For pregnant women with COVID-19, individualized VTE risk assessment should be performed considering immobility, fever, dehydration, BMI >30, diabetes, and other maternal risk factors, and low-risk patients should be encouraged to hydrate, mobilize, and control fever, while higher-risk patients may require prophylactic low molecular weight heparin (LMWH) 8
- Weight-adjusted prophylactic LMWH should be strongly considered for all hospitalized pregnant women with COVID-19, provided platelet count is >30 × 10⁹/L, no active bleeding, and delivery is not anticipated within 24 hours 8
- Prolonged PT and APTT should not be considered contraindications to thromboprophylaxis in COVID-19, as these may reflect acute phase reactants rather than true coagulopathy 8, 9
- COVID-19 creates a prothrombotic state superimposed on pregnancy's baseline hypercoagulability, significantly increasing VTE risk 9
- Obesity and diabetes are particularly high-risk comorbidities that have been associated with severe thrombotic complications including stroke and pulmonary embolism in pregnant COVID-19 patients 9
- D-dimer levels are physiologically elevated in pregnancy, so significant elevations above pregnancy norms should raise suspicion for potential deterioration 8
Monitoring Parameters
- Check platelet count before any invasive procedures, including neuraxial anesthesia if needed later in pregnancy 10, 11
- Consider CT angiography or venous ultrasound if there is rapid respiratory deterioration and/or markedly elevated D-dimer to evaluate for VTE 9
Supportive Care Measures
- Provide supplemental oxygen if needed to maintain SpO₂ >94%, using face mask rather than nasal cannula to minimize aerosolization risk 12
- Ensure adequate fluid intake and nutritional support 8
- Acetaminophen (paracetamol) is safe and should be used for fever control 13
- NSAIDs may be used if there are no contraindications, despite early concerns about ibuprofen in COVID-19 13
- Antibiotics should only be used if there is evidence of bacterial superinfection, not empirically for viral illness alone 12
Follow-Up Planning
- Continue LMWH for 10-14 days if prescribed for additional risk factors 8
- Duration of thromboprophylaxis after discharge should be individualized: 10-14 days for uncomplicated brief admissions, potentially longer for severe disease with very high D-dimer levels 8
- Fetal growth surveillance ultrasound should be performed 14 days after symptom resolution for confirmed COVID-19 cases 14
Red Flags Requiring Escalation of Care
- Respiratory rate >20 breaths/minute or increasing dyspnea 12
- Signs of preeclampsia (headache, visual changes, right upper quadrant pain) - note that COVID-19 can present with HELLP-like syndrome 9
- Decreased fetal movement (though not typically assessed until later in pregnancy) 14
- Vaginal bleeding or signs of miscarriage 8