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心肺运动试验是评估慢性心衰心脏储备和功能状态理想、安全的非侵入性检查方法,可提供心衰病人预后危险分层。评价慢性心衰病人危险分层的指标为最大摄氧量<14ml/(kg.min);调整后的最大摄氧量(正常值百分比)只有在女性和肥胖病人中具有优势。无氧阈值和通气效率能最佳预测6个月的死亡率;因此心肺运动试验可用于区别慢性心衰病人早期死亡的高度危险性,从而指导治疗选择,或使之能早期接受心脏移植治疗。
Cardiopulmonary exercise testing is an ideal and safe non-invasive method for assessing cardiac reserve and functional status in patients with chronic heart failure and provides a prognostic stratification for patients with heart failure. The index of risk stratification for patients with chronic heart failure was maximal oxygen uptake <14 ml / (kg.min); adjusted maximal oxygen uptake (percentage of normal) was predominant among women and obese patients. Anaerobic thresholds and ventilation efficiency can best predict the 6-month mortality rate; therefore, cardiopulmonary exercise testing can be used to distinguish between the high risk of early death in patients with chronic heart failure to guide treatment options or enable early heart transplant treatment.