Introduction:

safety during medical or surgical procedures is threatened by anaphylaxis.

Objective:

to evaluate the clinical characteristics, study method and eventual outcome of re-exposure in patients with anaphylactic and allergic reactions during medical or surgical procedures.

Materials and methods:

a quantitative, observational and descriptive study was carried out in 11 patients with a diagnosis of anaphylaxis in the course of a surgical intervention or medical procedure, in the Main Military Hospital and the National Hospital Simão Méndes, of Guinea Bissau between 2018 and 2020. The evaluated variables were: age, sex, procedure, anesthetic method, allergic history, severity of anaphylaxis and causal agent.

Results:

of the 11 patients studied, 10 had reactions in surgical procedures. The mean age was 46.09 years with a sex ratio of 0.57 male cases for each female case. Five patients (45.45 %) developed the maximum degree of anaphylaxis severity. Anesthetic agents were the cause of anaphylaxis in two of the four patients who underwent the general anesthesia method, and in two of the five who underwent the regional anesthesia method. Latex was found to be the causal agent in 45.45 % of the patients.

Conclusions:

the proper identification of anaphylactic reactions during their appearance is the cornerstone of medical action. In any case, subsequent allergo-anesthetic studies would be needed to define the causative agent.

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