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Churg-Strauss presenting as acute coronary syndrome: sometimes it's zebras.

ABSTRACT: A 53-year-old patient presented to our institution with troponin-positive chest pain and new-onset peripheral oedema. A week prior, while abroad, he had developed visual disturbances and fever in conjunction with an elevated troponin. Coronary angiography had revealed minor coronary artery disease and he was treated for acute coronary syndrome and occult infection. On arrival to our coronary care unit, further review elicited a history of recently diagnosed and worsening severity asthma with nasal polyposis. A mononeuritis and a vasculitic rash were noted and blood screen showed hypereosinophilia and immunoglobulin E (IgE) elevation. A clinical diagnosis of Churg-Strauss syndrome was made and the patient was treated urgently and successfully with immunosuppressants. The case illustrates a fulminant presentation mode of this rare vasculitis and the importance of seeking a unifying diagnosis in cases presenting with apparently disparate symptoms and findings.

SUBMITTER: Kakouros N

PROVIDER: S-EPMC3079452 | biostudies-literature | 2011 Apr

REPOSITORIES: biostudies-literature

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Churg-Strauss presenting as acute coronary syndrome: sometimes it's zebras.

Kakouros Nicholaos N Bastiaenen Rachel R Kourliouros Antonios A Anderson Lisa L

BMJ case reports 20110413

A 53-year-old patient presented to our institution with troponin-positive chest pain and new-onset peripheral oedema. A week prior, while abroad, he had developed visual disturbances and fever in conjunction with an elevated troponin. Coronary angiography had revealed minor coronary artery disease and he was treated for acute coronary syndrome and occult infection. On arrival to our coronary care unit, further review elicited a history of recently diagnosed and worsening severity asthma with nas ...[more]

PMID: 22700996

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Project description:Churg-Strauss syndrome (CSS) is a small vessel systemic vasculitis associated with asthma and eosinophilia that causes glomerulonephritis (GN) in ?25% of patients. Rituximab (RTX) is a chimeric anti-CD20 monoclonal antibody that depletes B cells and is effective in numerous autoimmune diseases including antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis. We aim to evaluate the safety and efficacy of RTX in inducing remission of renal disease activity in patients with CSS.We conducted a single-center, open-label pilot study using RTX (375 mg/m(2)/week × 4) for induction of remission in CSS patients with renal involvement [defined as having >25% dysmorphic red cells, red blood cell casts or pauci-immune GN on biopsy]. Written informed consent was obtained from all individuals. Patients were eligible if they were untreated, had failed glucocorticoid therapy or had failed glucocorticoid dose reductions because of disease relapses. The primary outcome was remission of renal disease activity defined as stability or improvement of creatinine clearance, absence of active urinary sediment and reduction of the glucocorticoid dose to <50% of the average dose received over 3 months before enrollment or <10 mg/day (whichever is smaller) at 6 months. Patients were followed up for 1 year.Only three patients (two females; ages 54, 55 and 65) were enrolled. All patients had positive myeloperoxidase-ANCA and renal involvement. Two patients had biopsy-proven pauci-immune crescentic GN. All achieved the primary end point of renal remission within the first 3 months and remained in renal remission during the year following RTX treatment. One patient experienced a nonrenal relapse (eye and joint involvement) at 6 months coinciding with the reconstitution of CD19+ cells and eosinophilia. He was retreated with RTX and achieved remission within 6 weeks. No major adverse effects were recorded.In this pilot study, RTX was safe and successful in controlling renal disease activity in three patients with CSS. This agent deserves further study in CSS.

Project description:BackgroundMyocardial infarction is most commonly caused by thrombosis occurring on a background of coronary atherosclerosis, resulting in reduced coronary flow. Less often, myocardial infarction can occur in the absence of coronary disease. The pathomechanism of myocardial infarction in such patients is heterogeneous and more challenging to diagnose and treat. European Society of Cardiology published a position paper on myocardial infarction in patients with non-obstructive coronary disease, with definitions and recommendations for investigations, in what has hitherto been an under-recognized and under-investigated Cinderella-like condition. However, the importance of obtaining a diagnosis is all the more important, since one treatment approach with revascularization and antithrombotic treatment does not 'fit all'.Case summaryA 70-year-old male patient presented with chest pain at rest, associated with rise in troponin and without ECG changes. A diagnosis of non-ST elevation myocardial infarction was made. Coronary angiography showed a smooth stenosis which resolved with administration of intracoronary nitrate. A diagnosis of coronary artery spasm was made, and treatment initiated. After 18?months, the patient had recurrent chest pains at rest, unresponsive to glyceryl trinitrate (GTN). Cardiac magnetic resonance revealed extension of subendocardial infarction, without inducible ischaemia. CT coronary angiogram (CTCA) showed non-obstructive coronaries. Blood tests showed significant eosinophilia, raised troponin, and C-reactive protein (CRP) that fluctuated without correlation with symptoms or any ECG changes. A diagnosis of Churg-Strauss syndrome was made, and immunosuppression commenced.DiscussionChurg-Strauss syndrome is an autoimmune vasculitis in patients with history of atopy or late-onset asthma which when involving coronary arteries can lead to myocardial injury mimicking acute coronary syndrome (ACS). Identification is important to allow initiation of immunosuppression which can prevent development or progression.

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Churg-Strauss presenting as acute coronary syndrome: sometimes it's zebras.

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Churg-Strauss presenting as acute coronary syndrome: sometimes it's zebras.

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