venous-stasis wave

例句：

1. 1. The venous-stasis wave was the first sign of a serious illness.
   静脉淤血波是严重疾病的首个迹象。
2. 2. The patient's condition worsened, and she required immediate medical attention.
   患者的病情恶化，需要立即医疗关注。
3. 3. Researchers have found that venous-stasis wave can be a predictor of heart disease.
   研究人员发现，静脉淤血波可以作为心脏病的一个预测指标。