pulmonary infarction

例句：

1. 1. He was diagnosed with pulmonary infarction and had to undergo surgery immediately.
   他被诊断出患有肺梗死，并立即接受了手术。
2. 2. The patient's condition worsened after the pulmonary infarction, requiring immediate medical attention.
   患者因肺梗死病情恶化，需要立即医疗关注。
3. 3. Pulmonary infarction is a serious condition that can lead to death if not treated promptly.
   肺梗死是一种严重的状况，如果不及时治疗可能会致命。