There had been no sign of either breathlessness or chest pain before the heart attack.

心脏病发前并未出现呼吸困难或胸痛的病征。

youdao

I have cough and chest pain. I have no appetite and feel very weak.

病人：我咳嗽胸痛，没有胃口，感到疲劳。

youdao

Although atypical chest pain may be debilitating, there is no objective evidence that it indicates serious heart disease, except when due to disease of the great vessels or to pulmonary embolism.

尽管非典型性胸痛有损健康，由此确定其为严重心脏病缺仍乏客观证据，除非这是由大血管病变或肺栓塞所引起的。

youdao

The new treatment offers particular promise in patients who suffer from chest pain but for whom angioplasty or bypass surgery is no longer an option.

CNN: Hormone allows heart patients to grow own bypasses

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

As revealed last month, the AtheroGenics study showed no benefit from the drug in heart patients based on its main goal, which included stent procedures, chest pain, heart attacks, strokes and cardiovascular death.

FORBES: AtheroGenics: Promise And Peril