Myocardial infarction in combination with anaphylactic shock (Kounis syndrome): a case report

Introduction. Allergic reactions and side effects are a common consequence of drug use and account for ~5% of all hospital admissions. The co-occurrence of ana phylactic shock and acute myocardial infarction (AMI) is called Kounis synd rome (KS).Brief description. The article analyzes the case of ceftriaxone-induced KS in a 56-year-old female patient with a history of anaphylactic shock after ampicillin therapy. The patient was treated on an outpatient basis due to an acute upper respiratory infection. The patient was diagnosed with acute bronchitis, in connection with which antibiotic therapy with azithromycin was started. Due to inefficiency the drug was canceled and ceftriaxone 1 g in 3,5 ml of 1% lidocaine solution 2 times a day was prescribed. After the first intramuscular injection, the patient developed anaphylactic shock, which was stopped by intravenous administration of prednisolone 120 mg, dexamethasone 8 mg and adrenaline hydrochloride 1,0 ml. Almost immediately, the ST segment elevation was recorded, in connection with which thrombolytic therapy with fortelyzin 15 mg was performed. Coronary angiography revealed thrombotic occlusion of the left anterior descending artery in the upper segment. Further examination verified AMI in the patient.Discussion. This case of AMI is pathogenetically associated with anaphylactic shock. However, the available data on the state of patient coronary system and no data on the morphologic characteristics of thrombus do not make it possibelr to define a type of KS.Conclusion. This clinical case indicates the need for a thorough allergic anamnesis collection by physicians of any specialty and prescribing medications taking it into account.