Abstract
Adverse reactions to general anaesthetics are quite rare, but may be very severe and even lethal. Unfortunately, the diagnosis is frequently based on medical history and few laboratory tests are reliable. A clinical case is presented: a patient, 75 years of age, was a candidate for urgent coronary artery bypass graft surgery due to the results of the coronary angiogram (severe stenosis of the main stem). The patient reported cardiac arrest in both operations with general anaesthesia, but there was a lack of clinical documentation. Thus, sulfidoleukotriene assay (CAST-ELISA, Bühlmann Laboratories) was used to determine the tolerability of general anesthetics in a single patient. The results of this in vitro test was useful in discriminating and excluding the administration of some widely-used standard anaesthetic agents.