The relationship between reported atopy or allergy and immunoglobulins: a preliminary study

Area of Science:

• Clinical Immunology
• Anesthesiology
• Allergy and Clinical Immunology

Background:

• Patients with a history of allergies such as asthma or hay fever may exhibit elevated immunoglobulin E (IgE) levels.
• The safety of intravenous anesthetics, particularly those containing Cremophor, in allergic patient populations requires further investigation.

Purpose of the Study:

• To analyze serum IgE levels in surgical patients with a history of atopy or allergy.
• To compare IgE levels with a control group lacking such a history.
• To assess the risk associated with Cremophor-containing intravenous anesthetics in patients with allergic predispositions.

Main Methods:

• Serum samples from 50 surgical patients with a history of asthma, hay fever, or allergy were analyzed for IgE levels.
• A control group without a history of allergy was included for comparison.
• IgE levels were quantified and compared between the patient and control groups.

Main Results:

• The control group generally exhibited IgE levels within the accepted normal range (below 200 iu./ml).
• The patient group showed a wide range of IgE levels, extending over 1000 iu./ml, with some individuals with minor allergies having lower values.
• A significant finding indicated that any patient with a history of atopy or allergy is potentially at risk from Cremophor-containing intravenous anesthetics.

Conclusions:

• Patients with a history of atopy or allergy demonstrate varied IgE levels, but this history is a critical risk factor.
• Cremophor-based intravenous anesthetics pose a risk to individuals with allergic conditions.
• Clinical vigilance is recommended when administering these anesthetics to patients with a known history of allergies.