Desfecho clínico do paciente com síndrome de Kounis após ingestão de escopolamina: relato de caso / Clinical outcome of patient with Kounis syndrome after ingestion of scopolamine: case report

A Síndrome de Kounis é uma condição que se manifesta como uma síndrome coronária aguda (SCA) em um contexto de reação de hipersensibilidade a diversos alérgenos. O mecanismo fisiopatológico central desta síndrome está associado ao vasoespasmo coronário. No caso, trata-se de um paciente com dor abdominal inespecífica que durante a administração da escopolamina, desenvolveu sintomas indicativos de síndrome coronária aguda, sem elevação do segmento ST no eletrocardiograma, porém com aumento da troponina ultrassensível. O paciente foi submetido a estratificação não invasiva para SCA, que não demonstrou doença coronária. Palavras-chave: Síndrome de Kounis. Vasoespasmo coronário. Dor no peito. Hipersensibilidade a Drogas. Escopolamina.

Type III Kounis Syndrome Secondary to Ciprofloxacin-Induced Hypersensitivity.

Kounis syndrome (KS) is a rare syndrome characterized by the co-occurrence of acute coronary syndromes in the setting of mast cell and platelet activation in response to hypersensitivity reactions. It can be manifested as coronary vasospasms, acute myocardial infarction, or stent thrombosis triggered by drugs, vaccines, foods, coronary stents, and insect bites. It is a life-threatening condition that needs to be adequately recognized for early diagnosis and appropriate treatment. In this case report, we present a 71-year-old patient with a history of arterial hypertension and non-ST elevation myocardial infarction six months earlier that was treated percutaneously with angioplasty plus stent implantation in the circumflex artery, who subsequently presented to the emergency department due to generalized itching associated with tongue swelling, dyspnea, and chest pain after ingestion of ciprofloxacin for the treatment of a urogenital infection. An electrocardiogram showed ST elevation in II, III, and aVF leads, and positive troponin; thus, a coronary arteriography was performed that showed complete thrombotic stent occlusion in the circumflex artery. Consequently, diagnosis of type 4b inferolateral acute myocardial infarction secondary to ciprofloxacin-triggered type III Kounis syndrome was made. The aim of this report is to understand the relationship between the allergic reaction to ciprofloxacin and the acute coronary syndrome, and to create awareness of the importance of early diagnosis and treatment of this potentially fatal syndrome.

Kounis Syndrome: Case Report in Goiânia/BR

Abstract 22-year-old male patient with no heart disease, who was given an ambulatory medication with analgesics due to an acute renal crisis. After the drug administration, the patient presented dyspnea, cyanosis, and hemoptysis. There was suspicion of anaphylactic shock, which was treated, but there was no improvement in the clinical condition. The patient was referred to the Intensive Care Unit, where tests were performed showing elevated cardiac enzymes and Immunoglobulin E and Computed Tomography of Thoracic revealed alveolar hemorrhage. He developed clinical worsening and died after sepsis. The final diagnosis was of kounis syndrome due to the hypersensitivity reaction to the analgesics introduced in the patient, generating an acute coronary syndrome (ACS). The purpose of this case report was to highlight a syndrome that is little reported because it is not part of the differential diagnosis routines of ACS, but it generates important complications.

Kounis syndrome. Apropos of a clinical case. / Síndrome de Kounis. A propósito de um caso clínico.

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.

Síndrome de Kounis. A propósito de um caso clínico / Kounis syndrome. Apropos of a clinical case

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.

Vasoespasmo coronario en un niño alérgico al látex: síndrome de Kounis / Coronary vasospasm in a child allergic to latex: Kounis syndrome

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.

[Coronary vasospasm in a child allergic to latex: Kounis syndrome]. / Vasoespasmo coronario en un niño alérgico al látex: síndrome de Kounis.

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.

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.

Allergic Acute Coronary Syndrome (Kounis Syndrome) in a Young Woman During Spinal Anesthesia: A Case Report.

Kounis syndrome represents the concurrence of acute coronary syndromes or anginal pain with allergic, hypersensitivity, and anaphylactoid reactions that are increasingly found in clinical practice. We present a case of a young woman who experienced attacks of dyspnea, hypoxemia, and hypotension during and after spinal anesthesia. Based on the pattern of clinical symptoms and laboratory findings, she was retrospectively diagnosed with Kounis syndrome, even though no apparent trigger of hypersensitivity was found.

Allergic myocardial ischemia secondary to ibuprofen, Kounis syndrome. Case report / Isquemia miocárdica alérgica secundaria a ibuprofeno, síndrome de Kounis. Reporte de un caso

Abstract: Background: Kounis syndrome was described in 1991 as the simultaneous occurrence of acute coronary events and anaphylactic allergic reactions. Reports of clinical cases and series of small cases of angina triggered by allergic reactions have been reported for many years. It encompasses concepts such as allergic angina and allergic infarction. Case report: We report a case of a 47-year-old man with a history of fixed drug eruption for 10 years. The patient attended to the hospital with a moderate-intensity chest pain, electrocardiogram was performed which was compatible with acute coronary syndrome without ST-segment elevation; it progressed favorably with treatment by protocol. The subsequent study showed hypersensitivity to non-steroidal anti-inflammatory drugs and cardiovascular tests was negative, and it was concluded as a case of allergic angina. Conclusions: Kounis syndrome is a difficult to diagnose entity that requires a high index of suspicion in the evaluation of patients with chest pain in the Emergency Department.(AU)

Resumen: Antecedentes: El síndrome de Kounis fue descrito en 1991 como la aparición simultánea de eventos coronarios agudos y reacciones alérgicas anafilácticas. Casos clínicos y pequeñas series de casos de angina generada por reacciones alérgicas han sido reportados en varios años. Engloba conceptos como el de angina alérgica e infarto alérgico. Caso clínico: Presentamos un caso clínico de un hombre de 47 años de edad, con antecedentes de eritema fijo medicamentoso desde hace 10 años. Acude al Departamento de Emergencia por presentar dolor torácico de moderada intensidad, se realiza electrocardiograma el cual es compatible con síndrome coronario agudo sin elevación del segmento ST. Evolucionó favorablemente con tratamiento según protocolo. El estudio posterior demostró hipersensibilidad a antiinflamatorios no esteroideos y las pruebas de estratificación de isquemia cardiovascular fueron negativas, por lo que se concluyó como un caso de angina alérgica. Conclusiones: El síndrome de Kounis es una entidad de difícil diagnóstico que requiere un alto índice de sospecha en la valoración de pacientes con dolor torácico en el Departamento de Emergencia.(AU)