Labor Could Increase Systemic Inflammation and Cause or Deteriorate Cytokine Storm in COVID-19

Area of Science:

• Obstetrics and Gynecology
• Infectious Diseases
• Immunology

Background:

• Pregnant women with COVID-19 exhibit higher morbidity and mortality rates.
• COVID-19 is associated with a cytokine storm, an overrelease of pro-inflammatory cytokines like IL-1β, IL-6, and TNF-α.
• Labor, particularly preterm labor and cesarean sections, involves inflammatory processes and cytokine release.

Purpose of the Study:

• To explore the inflammatory pathways linking COVID-19 in pregnant women to adverse outcomes during and after labor.
• To elucidate the role of cytokine storm, tissue injury, and postpartum hemorrhage in escalating inflammation.

Main Methods:

• Review of existing literature on COVID-19, pregnancy, labor inflammation, and cytokine storm.
• Analysis of proposed pathways involving cytokine storm, NFκB activation, and hypoxia-inducible factor 1α.

Main Results:

• COVID-19 patients experience cytokine storms, increasing morbidity and mortality.
• Labor involves inflammatory cytokines (IL-1β, IL-6, TNF-α) crucial in cytokine storm.
• Tissue injury (e.g., C-section) and postpartum hemorrhage with hypoxemia activate inflammatory pathways (NFκB, HIF-1α).

Conclusions:

• Clinicians must monitor and manage the escalating inflammatory status in pregnant COVID-19 patients during and post-labor.
• Understanding these pathways is critical for mitigating risks associated with COVID-19 in pregnancy.
• Interventions targeting inflammatory pathways may improve outcomes for pregnant women with COVID-19.