Evaluation of ST-segment changes during and after maximal exercise tests in one-, two- and three-vessel coronary artery disease
| Autor: | Lena Höglund, Margareta Nordlander, Thorvald Bjurö, Anders R. Malm, Lars Gullestad, John Pernow, Inger Wahlqvist, Knut Endresen |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Adult
Male medicine.medical_specialty Multivariate analysis Time Factors Coronary Artery Disease Coronary Angiography Angina Pectoris Coronary artery disease Electrocardiography Reference Values Internal medicine Heart rate medicine ST segment Humans Aged Univariate analysis medicine.diagnostic_test business.industry Stroke Volume Stroke volume Middle Aged medicine.disease Angiography Cardiology Exercise Test Cardiology and Cardiovascular Medicine business |
| Zdroj: | Scandinavian cardiovascular journal : SCJ. 38(5) |
| ISSN: | 1401-7431 |
| Popis: | To relate ECG and heart rate (HR) variables during and after exercise testing with the presence of one-, two- or three-vessel disease defined by angiography.Seventy-three male patients with stable angina pectoris and angiographically verified coronary artery disease underwent a maximal exercise test. From 12-lead ECG recordings and computer averaging ST-amplitude and HR data were measured in consecutive 10-s intervals.In univariate analysis, patients with three-vessel disease had lower maximal exercise capacity, a shorter time to1 mm ST-depression, more often a clockwise ST/HR recovery loop, more frequently a post-exercise downward ST-segment slope, and a greater ST-deficit at 3.5 min after exercise than patients with one-vessel disease. In multivariate analysis, time to1 mm ST-depression discriminated between patients with three- and one-vessel disease. In patients with an intermediate time to1 mm ST-depression a clockwise ST/HR recovery loop and/or a downsloping ST-segment in the post-exercise period were significantly more prevalent in severe vessel disease.Patients with three-vessel disease had a significantly shorter time to1 mm ST-depression during exercise and more often an abnormal post-exercise ST/HR reaction than those with one-vessel disease. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|