Increasing pre-excitation ('concertina effect') during vasospastic angina
| Autor: | Takuroh Imamura, Kenjiro Tanaka, Hiroyuki Kondoh, Susumu Nakagawa, Yasushi Koiwaya, Kohichi Maeda |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Angina Pectoris
Variant Male medicine.medical_specialty Coronary Vasospasm Chest pain Angina Electrocardiography Internal medicine medicine.artery Hyperventilation Medicine Humans cardiovascular diseases medicine.diagnostic_test business.industry ST elevation Middle Aged medicine.disease Electrophysiology medicine.anatomical_structure Right coronary artery Etiology Cardiology Atrioventricular Node Wolff-Parkinson-White Syndrome medicine.symptom Cardiology and Cardiovascular Medicine business Artery |
| Zdroj: | Journal of electrocardiology. 19(3) |
| ISSN: | 0022-0736 |
| Popis: | A patient with Wolff-Parkinson-White syndrome and variant angina developed progressive ST-segment elevation in the inferior leads after hyperventilation-induced right coronary artery spasm. At the same time, increasing pre-excitation ("concertina effect") developed with gradual prolongation of the AH interval on His bundle ECG. The ECG changes promptly disappeared after sublingual nitroglycerin, with termination of the chest pain. Transient ischemia induced by coronary artery spasm can be an etiology of increasing pre-excitation. |
| Databáze: | OpenAIRE |
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