Cardiopulmonary exercise responses in patients with non-ischemic heart failure and a mildly reduced ejection fraction
| Autor: | Ken Harada, Sumio Yamada, Kumiko Mamiya, Sayaka Higo, Hitomi Suzuki, Yuto Teshima, Shun Matsunaga, Kazuhiro Harada, Tomoyuki Nagao, Norihiro Shinoda, Masataka Kato, Nobuyuki Marui, Tetsuya Amano, Toyoaki Murohara |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Future Cardiology. 18:627-634 |
| ISSN: | 1744-8298 1479-6678 |
| DOI: | 10.2217/fca-2021-0135 |
| Popis: | Background: The cardiopulmonary response to exercise in patients with heart failure exhibiting a mildly reduced ejection fraction (41% ≤ EF ≤ 49%) remains unclear. Materials & methods: A total of 193 consecutive patients with heart failure (excluding those with coronary artery disease) who underwent cardiopulmonary exercise (CPX) tests were examined. CPX variables were compared among patients with reduced, mildly reduced, and preserved EF. Results: The CPX test responses of patients with mildly reduced EF were similar to those of patients with reduced or preserved EF; however, increases in systolic blood pressure during exercise differed significantly (32 ± 26, 50 ± 24, and 41 ± 31 mmHg, respectively; p = 0.016). Grip strength and an increase in systolic blood pressure during exercise were independently associated with peak oxygen uptake in patients with mildly reduced EF (β = 0.41, 0.35, respectively; p < 0.05). Conclusion: Measurements of grip strength and blood pressure during exercise are useful predictors of prognoses in patients with non-ischemic and mildly reduced EF. |
| Databáze: | OpenAIRE |
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