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过度换气(HV)试验已被广泛用于激发变异型心绞痛患者冠状动脉痉挛。最常见的ECG 阳性特征是恢复期 ST 段抬高。文献报道冠状动脉疾病(CAD)患者在过度换气或恢复期均可出现 ST 段压低,但其病理生理尚未完全阐明。本文旨在研究经血管造影证实的 CAD 患者中 HV 诱发 ST 段压低的意义。
Hyperventilation (HV) testing has been used extensively to stimulate coronary spasm in patients with variant angina. The most common ECG positive feature is recovery ST-segment elevation. Reported in the literature Coronary artery disease (CAD) in patients with hyperventilation or convalescent ST-segment depression may occur, but its pathophysiology has not been fully elucidated. This article aims to investigate the significance of HV-induced ST segment depression in CAD patients confirmed by angiography.