Exercise-induced abnormal blood pressure responses are related to subendocardial ischemia in hypertrophic cardiomyopathy
| Autor: | Aiko Muro, Noriko Yoshida, Tsutomu Imaizumi, Toyofumi Wada, Akira Shibata, Akira Matsumoto, Sanae Maki, Hisao Ikeda |
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| Rok vydání: | 1998 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Heart disease Myocardial Ischemia Ischemia Cardiomyopathy Hemodynamics Blood Pressure Internal medicine Humans Medicine cardiovascular diseases Aged Tomography Emission-Computed Single-Photon business.industry Hypertrophic cardiomyopathy Cardiomyopathy Hypertrophic Middle Aged medicine.disease Thallium Radioisotopes Preload Blood pressure medicine.anatomical_structure Exercise Test cardiovascular system Cardiology Vascular resistance Female Vascular Resistance Cardiology and Cardiovascular Medicine business |
| Zdroj: | Journal of the American College of Cardiology. 32:1938-1942 |
| ISSN: | 0735-1097 |
| Popis: | Objectives. We examined by thallium-201 scintigraphy whether exercise-induced abnormal blood pressure response (BPR) is related to myocardial ischemia.Background. Hemodynamic instabilities during exercise in patients with hypertrophic cardiomyopathy (HCM) are considered to be caused by abnormal reflex control of vascular resistance.Methods. In 105 patients with HCM, exercise thallium scintigraphy was performed by means of a multistage, symptom-limited bicycle ergometer exercise test.Results. Eighty-eight patients had normal BPR (≥25 mm Hg from baseline to peak exercise), and 17 had abnormal BPR ( |
| Databáze: | OpenAIRE |
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