We recruited 804 patients who had presented to the Ed with suspected cardiac chest pain.

我们征集804例由于可疑心脏性胸痛在急诊科就诊的患者。

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Shortness of breath or chest pain may also be a sign that you're at risk of sudden cardiac death, but these are rare and may be a sign of other health problems in young people, such as asthma.

呼吸紧促或胸口痛也可以说明你有心脏猝死的危险，但是这样的可能性很小，而且这也可能是年轻人有其它健康问题的一个信号，比如哮喘。

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Primary cardiac tumors can mimic many other cardiac conditions and may cause obstruction to blood flow, heart failure, chest pain, syncope, pulmonary hypertension, and arrhythmias.

原发性心脏肿瘤可以产生许多其他心脏病的表现，可能阻塞血流，引起心力衰竭、胸痛、晕厥、肺动脉高压和心律失常等。

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"There might always be the occasion where we've got a child not breathing or someone in cardiac arrest or an elderly patient with chest pain that needs that response, " Mr Brown added.

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Millions of heart patients have gotten cardiac stents placed in their arteries to stave off chest pain from angina and open dangerously-clogged arteries.

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When cardiac CT angiography is being used appropriately -- meaning, for example, in people with chest pain suggesting blocked heart arteries, rather than as a screening test for people with no symptoms of heart disease -- the benefits far outweigh the risk of the radiation, according to Einstein and Hausleiter.

CNN: Heart test can pack radioactive wallop