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Chest pain may be a symptom of a number of serious conditions and is, in general, considered a medical emergency. Even though it may be determined that the pain is non-cardiac in origin, this is often a diagnosis of exclusion made after ruling out more serious causes of the pain. * In the US, an estimated 5 million patients per year present to the Emergency Department with chest pain. * More than 50% of patients presenting to emergency facilities with unexplained chest pain will have coronary disease ruled out. * 1.5 million patients are admitted annually for workup of acute coronary syndrome (ACS). * Approximately 8 billion dollars are used annually to evaluate complaints of chest pain. ==Differential diagnosis== Causes of chest pain range from non-serious to serious to life-threatening. DiagnosisPro lists more than 440 causes on its website.〔(【引用サイトリンク】title=Differential Diagnosis For Chest Pain: Poisoning (Specific Agent) )〕 In adults the most common causes of chest pain include: gastrointestinal (42%), coronary artery disease (31%), musculoskeletal (28%), pericarditis (4%) and pulmonary embolism (2%).〔 Other less common causes include: pneumonia, lung cancer, and aortic aneurysms. In children the most common causes for chest pain are musculoskeletal and unknown. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chest pain」の詳細全文を読む スポンサード リンク
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