Symptoms in<unk>  are highly variable. They tend to reflect the many underlying disorders causing eosinophil dysfunction as well as the widely differing progression rates of cardiac damage. Before cardiac symptoms are detected, some 66% of cases have symptoms of a common cold and 33% have symptoms of asthma, rhinitis, urticarial, or other allergic disorder. Cardiac manifestations of<unk>  range from none to life-threatening conditions such as cardiogenic shock or sudden death due to abnormal heart rhythms. More commonly the presenting cardiac symptoms of the disorder are the same as those seen in other forms of heart disease: chest pain, shortness of breath, fatigue, chest palpitations, light headedness, and syncope. In its most extreme form, however,<unk>  can present as acute necrotizing<unk> , i.e. with symptoms of chaotic and potentially lethal heart failure and heart arrhythmias. This rarest form of the disorder reflects a rapidly progressive and extensive<unk>  infiltration of the heart that is accompanied by massive myocardial cell necrosis. Hypereosinophilia (i.e. blood<unk> ounts at or above 1,500 per microliter) or, less commonly,<unk>  (counts above 500 but below 1,500 per microliter) are found in the vast majority of cases of<unk>  and are valuable clues that point to this rather than other types of<unk>  or myocardial injuries. However, elevated blood<unk> ounts may not occur during the early phase of the disorder. Other, less specific laboratory findings implicate a cardiac disorder but not necessarily<unk> . These include elevations in blood markers for systemic inflammation (e.g. C reactive protein, erythrocyte sedimentation rate), elevations in blood markers for cardiac injury (e.g. creatine kinase, troponins); and abnormal electrocardiograms ( mostly ST segment-T wave abnormalities).
Eosinophilic myocarditis
Idiopathic giant-cell myocarditis
Coxsackievirus-induced cardiomyopathy
Viral cardiomyopathy
Amyloid cardiomyopathy
Alcoholic cardiomyopathy
HIV associated cardiomyopathy
Tuberculous pericarditis