An Insight into Kounis Syndrome: Bridging Clinical Knowledge with Forensic Perspectives

Q: What is the clinical evidence from this study?

Study design: Review. Population: Kounis syndrome (acute coronary syndrome triggered by allergic or hypersensitivity reactions).

Q: What does this research mean for the field?

Kounis syndrome occurs in an estimated 19.4 per 100,000 emergency admissions and 3.4% of allergy patients, requiring an integrated multidisciplinary approach combining clinical, histological, biochemical, and immunohistochemical data for accurate clinical and postmortem diagnosis. Novelty: ClaimNovelty.SYNTHESIS. Consensus alignment: ConsensusAlignment.NEUTRAL.

Elena Forzese; Claudia Pitrone; Vincenzo Cianci; Daniela Sapienza; Antonio Ieni; Lorenzo Tornese; Alessio Cianci; Patrizia Gualniera; Alessio Asmundo; Cristina Mondello

doi:10.3390/life14010091

January 5, 2024LifeOpen Access

An Insight into Kounis Syndrome: Bridging Clinical Knowledge with Forensic Perspectives

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Key result

Kounis syndrome affects ~3.4% of allergy patients and ~19 per 100,000 emergency admissions.

Why the study?

This review explores the expanding understanding of Kounis syndrome by focusing on both clinical data and forensic findings useful in performing a diagnosis.

Key Points

To review the epidemiological patterns, pathophysiology, clinical presentation, and postmortem diagnostic approaches associated with Kounis syndrome.
Reviewed published literature, epidemiological reports, and forensic case series addressing Kounis syndrome.
Assessed clinical, macroscopic, histological, biochemical, and immunohistochemical tools used to diagnose the syndrome in clinical and postmortem settings.
Incidence rates include 19.4 per 100.000 among emergency department admissions (27/138.911) and 3.4% among allergy patients (27/793).
Kounis syndrome is classified into three subtypes: allergic angina, allergic myocardial infarction, and allergic stent thrombosis, mediated by mast cell degranulation and the release of histamine, leukotrienes, cytokines, and tryptase.
Postmortem diagnosis requires integrating circumstantial data with autopsy findings, coronary and myocardial histology, and markers including troponin I, tryptase, chymase, and specific IgE.

Structured PICO

P

Population

Patients across all races and age groups (2 to 90 years old) presenting with Kounis syndrome, an acute coronary syndrome triggered by allergic or hypersensitivity reactions.

This narrative review synthesizes clinical and forensic diagnostic strategies for Kounis syndrome, highlighting the need for a multidisciplinary approach integrating clinical history, histology, biochemistry (serum tryptase, IgE, troponin I), and immunohistochemistry to confirm allergic acute coronary events.

Limitations

Most knowledge derives from case reports and small case series, resulting in limited understanding of pathogenesis.
Absence of circumstantial, anamnestic, and macroscopic data limits the execution of non-routine biochemical and immunohistochemical postmortem investigations.
Increased postmortem interval (PMI) leads to autolytic and transformative phenomena that alter histological, immunohistochemical, and biochemical findings.
Immunohistochemistry is semi-quantitative and lacks shared minimum values of immunopositivity for a definitive forensic diagnosis.
Most knowledge regarding Kounis syndrome derives from case reports and small case series, resulting in limited knowledge about pathogenesis.
Potential predisposing genetic and molecular factors have not yet been sufficiently investigated.
Absence of circumstantial/anamnestic and macroscopic data may prevent necessary biochemical and immunohistochemical postmortem investigations from being performed.
Increase in postmortem interval leads to autolytic and transformative phenomena that alter histological, immunohistochemical, and biochemical findings.
Immunohistochemistry is a semi-quantitative investigation and there are currently no shared minimum values of immunopositivity for a certain forensic diagnosis.

Ask about this paper

Answers are grounded in this paper and cite their sources.

Implication

Raises awareness for Kounis syndrome in emergency and allergy settings; leaves open standardized diagnostic criteria pending prospective validation.

Abstract

Kounis syndrome (KS) is an acute coronary syndrome triggered by allergic or hypersensitivity reactions. Incidence rates vary, with studies reporting 19.4 per 100.000 among all admissions and 3.4% among allergy patients. This review explores the expanding understanding of KS, encompassing various manifestations, and focusing on both clinical data and forensic findings useful in performing a diagnosis. The pathophysiology of this syndrome involves a complex interplay between allergic reactions and the cardiovascular system. Mast cell activation, histamine release, leukotrienes, cytokines, and platelet activation can contribute to coronary events. Three types of classification systems (allergic angina, allergic myocardial infarction, allergic stent thrombosis) aid in categorizing presentations. The diagnosis of KS relies on clinical presentation, laboratory findings, and imaging. Postmortem assessment of KS is based on the integration of circumstantial data, autopsy, and histological findings. Biochemical and immunohistochemical analyses also contribute to postmortem diagnosis. In conclusion, a combined, multidisciplinary approach should be used to ease the diagnostic process, which is crucial for forensic practitioners in confirming KS occurrence.

Discussion

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Cite This Study

Forzese et al. (2024) conducted a review in Kounis syndrome (acute coronary syndrome triggered by allergic or hypersensitivity reactions). Kounis syndrome has a reported incidence of 19.4 per 100,000 among all emergency admissions and 3.4% among allergy patients, requiring multidisciplinary clinical and forensic diagnosis.

synapsesocial.com/papers/6ae17e82c34f09249586928d https://doi.org/10.3390/life14010091

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An Insight into Kounis Syndrome: Bridging Clinical Knowledge with Forensic Perspectives

Key Points

Structured PICO

Limitations

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

An Insight into Kounis Syndrome: Bridging Clinical Knowledge with Forensic Perspectives

Key Points

Structured PICO

Limitations

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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