What Determines the Heart Rate Response to Exercise in Patients with Atrial Fibrillation?
| Autor: | Junnya Kamata, Masataka Nasu, Noboru Kobayashi, Kenji Ueshima, Motoyuki Nakamura, Naoki Chiba, Katsuhiko Hiramori, Ikuo Segawa |
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| Rok vydání: | 2000 |
| Předmět: |
Male
medicine.medical_specialty Heart disease medicine.medical_treatment Severity of Illness Index Atrial natriuretic peptide Heart Rate Internal medicine Atrial Fibrillation Heart rate medicine Humans In patient cardiovascular diseases Aged Cardiac catheterization business.industry P wave Atrial fibrillation Middle Aged medicine.disease Echocardiography Exercise Test cardiovascular system Cardiology Female Cardiology and Cardiovascular Medicine business Blood sampling |
| Zdroj: | Japanese Heart Journal. 41:445-450 |
| ISSN: | 1348-673X 0021-4868 |
| DOI: | 10.1536/jhj.41.445 |
| Popis: | We evaluated the factors that determine the heart rate response to exercise in 60 patients with atrial fibrillation (25 men and 35 women, with a mean age of 61+/-10 years) who underwent symptom limited cardiopulmonary exercise testing with blood sampling of atrial natriuretic peptide (ANP), 2-dimensional echocardiography and cardiac catheterization. Atrial muscles resected during the Maze operation were examined histologically in 12 patients. The heart rate response to exercise depended on the severity of the atrial organic injury, which was expressed as left atrial diameter, ANP secretion during the maximal exercise testing and the histological findings of atrial tissue. Conversely, we believe that the severity of the atrial injury can be predicted from the heart rate response to exercise in patients with atrial fibrillation. |
| Databáze: | OpenAIRE |
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