title: Vasospastic angina with J waves formation in patients with sudden loss of consciousness.
abstract: Vasospastic angina is caused by sudden occlusive vasoconstriction of a segment of an epicardial artery, which can present with a wide spectrum of clinical scenario. We report the cases of two patients diagnosed with vasospastic angina, with one of which presenting with sudden cardiac arrest, while the other presenting with a relatively benign syncope. But both of them have J waves formation on ECG during active ischemia. The diagnosis and management of vasospastic angina, as well as the proposed clinical significance of J waves during coronary spasm are discussed.
authors.affiliation: Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Department of Cardiology, Peking University Third Hospital, Beijing, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Department of Cardiology, Peking University Third Hospital, Beijing, China.
authors.forename: Yi-Ming
authors.initials: YM
authors.lastname: Luo
authors.affiliation: Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Department of Cardiology, Peking University Third Hospital, Beijing, China.
authors.forename: Ke-Hu
authors.initials: KH
authors.lastname: A
authors.affiliation: Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Department of Cardiology, Peking University Third Hospital, Beijing, China.
authors.forename: Ling-Yun
authors.initials: LY
authors.lastname: Zu
authors.affiliation: Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Department of Cardiology, Peking University Third Hospital, Beijing, China.
authors.forename: Yan-Hui
authors.initials: YH
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Department of Cardiology, Peking University Third Hospital, Beijing, China.
authors.forename: Li-Jun
authors.initials: LJ
authors.lastname: Guo
authors.affiliation: Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Department of Cardiology, Peking University Third Hospital, Beijing, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Gao
authors.affiliation: Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Department of Cardiology, Peking University Third Hospital, Beijing, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Zhang
keywords: Angina; Consciousness loss; J wave; Osborn wave