ABSTRACT
RESUMO A síndrome de Kounis, enquanto síndrome coronária aguda, ocorre em um contexto de reação de hipersensibilidade, alergia ou anafilaxia, e subdivide-se em três tipos: o espasmo coronário em artérias normais, a instabilidade de placas em artérias coronárias ateroscleróticas e a trombose de stent coronário. Apresenta-se o caso de uma doente de 73 anos que, após administração de amoxicilina/ácido clavulânico, entra em parada cardiorrespiratória, com evidência de supradesnivelamento do segmento ST-T em eletrocardiograma. Realiza coronariografia com ausência de lesões obstrutivas, verificando-se resolução espontânea das alterações eletrocardiográficas. Revisão da anamnese com a família documenta alergia prévia à penicilina. O doseamento de triptase foi fortemente positivo. Foi admitida provável síndrome de Kounis tipo 2, com boa evolução clínica posterior.
ABSTRACT Kounis syndrome, while an acute coronary syndrome, occurs in the context of a hypersensitivity reaction, allergies, or anaphylaxis and is subdivided into three types: coronary spasm in normal arteries, instability of plaques in atherosclerotic coronary arteries, and thrombosis of coronary stents. Herein, the case of a 73-year-old patient who, after administration of amoxicillin/clavulanic acid, went into cardiorespiratory arrest with evidence of ST-T segment elevation on electrocardiogram is reported. Coronarography revealed no obstructive lesions, and spontaneous resolution of electrocardiographic abnormalities was observed. A review of anamnesis with the family revealed a previous allergy to penicillin. The tryptase dosage was strongly positive. Kounis syndrome type 2 was diagnosed, and the clinical outcome was good.
Subject(s)
Humans , Female , Aged , Kounis Syndrome/diagnosis , Kounis Syndrome/therapyABSTRACT
El síndrome de Kounis consiste en la aparición simultánea de anafilaxia y síndrome coronario agudo. Se trata de una entidad poco descrita y que puede estar infradiagnosticada en pediatría. Es crucial, por su presentación variable, atípica e inesperada, y por sus posibles complicaciones graves (arritmias ventriculares, infarto de miocardio, muerte súbita), su reconocimiento y tratamiento precoz, dirigido a la revascularización del miocardio y al tratamiento de la reacción anafiláctica concomitante. Se presenta el caso de un varón de 11 años que, tras el contacto con látex, presentó una reacción anafiláctica asociada a vasoespasmo coronario, con recuperación rápida y completa con la administración de adrenalina intramuscular. El estudio cardiológico descartó patología coronaria como causa del evento. El estudio alergológico puso de manifiesto un síndrome de reactividad cruzada látex-frutas (kiwi y piña). Se diagnosticó síndrome de Kounis tipo i desencadenado por látex, y se recomendó evitar posibles factores desencadenantes.
Kounis syndrome consists of the simultaneous occurrence of anaphylaxis and acute coronary syndrome. It is a rare entity that may be underdiagnosed in paediatrics. The clinical presentation is variable, atypical and usually unexpected, and it carries possible serious complications such as ventricular arrhythmias, myocardial infarction and sudden death. Therefore, an early diagnosis and treatment for myocardial revascularization and the anaphylactic reaction are crucial. We report the case of an 11-year-old male who, after contact with latex, presented an anaphylactic reaction associated with coronary vasospasm, with rapid and complete recovery after administration of intramuscular adrenaline. The cardiological study ruled out coronary pathology as the cause of the event. The allergy study revealed a latex-fruit (kiwi and pineapple) cross-reactivity syndrome. The patient was diagnosed with type I Kounis syndrome triggered by latex, recommending the avoidance of possible triggers.