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Symptoms of anaphylactic shock in children
Last reviewed: 23.04.2024
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The severity of anaphylactic shock is usually inversely proportional to the time elapsed since the contact with the allergen, i.e., the shorter the time passes from contact with the allergen before the onset of clinical symptoms, the more severe anaphylactic shock occurs.
With parenteral ingestion of the allergen in a few seconds or minutes after a short period of precursors (weakness, fear, anxiety, etc.), skin hyperemia and itching (primarily of the hands, feet and groin area), abdominal pain. Characteristic of the appearance of urticaria rash and the development of angioedema. Symptomatology on the part of the respiratory system may progress from an inarticulate edema of the larynx, obstruction of the bronchi to asphyxia. The patient "limps," loses consciousness, pouring out sweat and a sharp pallor of the skin, foam at the mouth, incontinence of urine and feces, convulsions, coma. Saving the patient can only energetic, aggressive treatment. Death can come in a few minutes.
After swallowing the allergen, the clinical manifestations of shock develop after a while, necessary for digesting the product and absorbing the allergen in the digestive tract. In some patients, after the relief of anaphylactic shock, a second episode of anaphylaxis may develop as a delayed response.
Anaphylactoid reaction caused by physical exertion occurs with excessive muscular overexertion and is manifested by urticaria rashes on the skin, angioedema, nausea, vomiting, cramping abdominal pains, diarrhea, in the most severe cases - edema of the larynx, bronchospasm and vascular collapse. The reaction develops during or immediately after exercise. The exact mechanism of anaphylaxis for physical activity is not established. It is believed that the release of endogenous opioid peptides during increased physical activity leads to susceptible patients to eject mediators of anaphylaxis, increase serum lactate, and creatine phosphokinase.
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