[Specific immunotherapy (hyposensitization) with insect venom in pregnancy]

Area of Science:

• Allergy and Immunology
• Obstetrics and Gynecology
• Toxicology

Background:

• Specific immunotherapy (SIT) for allergies is generally contraindicated during pregnancy, except for established Hymenoptera venom allergies.
• International guidelines support continuing well-tolerated Hymenoptera venom SIT in pregnancy due to severe anaphylaxis risks from insect stings.
• Insect stings during pregnancy pose significant risks of anaphylaxis, potentially leading to adverse outcomes for both mother and fetus.

Observation:

• A case report details a 28-year-old woman who became pregnant while undergoing Hymenoptera venom SIT.
• The patient continued her established SIT regimen throughout her pregnancy.
• A premature birth occurred at 24 weeks gestation in this patient.

Findings:

• Continuation of Hymenoptera venom SIT during pregnancy is feasible.
• Pregnancy in patients undergoing SIT for insect venom allergies requires careful management.
• The case did not explicitly link the premature birth to SIT, but highlights the need for vigilance.

Implications:

• Conflicting opinions exist in Germany regarding SIT during pregnancy, influencing clinical decisions.
• Close collaboration between obstetricians and allergologists is crucial for managing pregnant patients with insect sting allergies.
• Physician knowledge and comfort level significantly impact the decision-making process for SIT in pregnant individuals.