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Kounis Syndrome: Review of Clinical Cases
Sergey Yakushin1, Arzu Gurbanova1, Kristina Pereverzeva1
1Department of Hospital Therapy with a Course of Medical and Social Expertise, Federal State Budgetary Educational Institution of Higher Education, "Ryazan State Medical University Named after Academician I.P. Pavlov" of the Ministry of Health of the Russian Federation, Ryazan, 390026, Russia.
Background:
Kounis syndrome is defined as a combination of acute coronary syndrome and allergic reactions.
Objective:
In this review, we aim to describe the etiological, clinical, and diagnostic characteristics of Kounis syndrome.
Methods:
A literature search using PubMed was conducted for the past 32 years using keywords, resulting in the selection of 761 scientific papers. From these, 217 articles describing 235 clinical cases were selected. Patients under 18 years of age or without a confirmed diagnosis were excluded.
Results:
Among the 235 patients, type I Kounis syndrome was observed in 49.7%, type II in 27.2%, type III in 5.9%, and a combination of types I and II in 1.0%; in 16.2%, it was not possible to classify the type of Kounis syndrome. The median age was 57 years, and 68.5% of the patients were male. The most common causes were antibiotics (32.3%) and non-steroidal anti-inflammatory drugs (24.3%). The clinical features included chest pain (59.1%), hypotension (74.2%), itching (30.6%), and dyspnea (30.6%). Electrocardiographic monitoring revealed ST-segment elevation in 42.9% and was normal in only 5.5% of patients. Coronary angiography was performed in 80.4% of the patients, revealing unchanged coronary arteries in 50.3% of cases. Сonclusion: Allergic myocardial infarction is a serious complication of drug therapy.
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