1·ET might be the important factor to cause vasoconstriction, resulting in the portent symptoms.
ET可能是导致血管收缩，引起先兆症状的重要因子。
2·Objective To study the effects of different concentration of desflurane on hypoxic pulmonary vasoconstriction (HPV) during one-lung ventilation (OLV).
目的观测地氟醚麻醉深度对单侧肺通气(OLV)时低氧性肺血管收缩(HPV)的影响。
3·When acute anoxia, the skin, the abdominal cavity internal organs nerve is excited, shrinks the blood vessel function to get the advantage, therefore vasoconstriction;
急性缺氧时，皮肤、腹腔内脏交感神经兴奋，缩血管作用占优势，故血管收缩；
4·The basic pathological alteration of pulmonary hypertension involves three dependent elements:pulmonary vasoconstriction, pulmonary vascular remodeling and pulmonary microvascular thrombogenesis.
前言： 肺动脉高压的基本病理改变有三个方面：肺血管收缩、肺血管重构和肺小血管内微血栓形成。
5·The drugs' mechanism of action remains uncertain, but plausible theories include vasoconstriction, modulation of pro-survival signal transduction pathways, and endothelial cell apoptosis.
药物的作用机制尚不清楚，可能的作用包括血管收缩、调节信号传导通路和促进内皮细胞凋亡。