Cardiology Department, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland.
Int J Cardiovasc Imaging. 2012 Jan;28(1):199-209. doi: 10.1007/s10554-010-9763-4. Epub 2010 Dec 9.
To assess cardiorespiratory fitness (CF), usually a stress test is necessary. Our aims were to assess CF in a patient population with suspected or known coronary artery disease (CAD) based on a questionnaire (quest); to compare estimated CF with achieved workloads, and to evaluate its prediction of stress modality (physical/pharmacologic). Consecutive 612 patients undergoing myocardial perfusion SPECT (MPS) completed quest. They first chose one category which best described their daily physical activities. The second part contained patient characteristics (gender, age, BMI, and resting heart rate). An activity score was calculated and metabolic equivalents (METs) were estimated. Estimated and achieved results were compared. Patients with pharmacologic test (n = 208) provided a lower estimate of their performance than physically stressed patients (n = 404): 7.0 ± 2.1 and 8.2 ± 2.3 METs, respectively (P < 0.0001). The latter showed a good correlation between estimated and achieved METs (r = 0.63, P < 0.0001). Regarding prediction of the stress modality, area under the curve (ROC) was 0.65 (P < 0.0001). The quest can easily be applied in daily practice to assess CF in a patient population with CAD and for estimating whether an adequate physical stress test can be carried out.
为了评估心肺适应能力（CF），通常需要进行压力测试。我们的目的是基于问卷（quest）评估疑似或已知冠心病（CAD）患者人群的 CF；比较估计的 CF 与实际达到的工作量，并评估其对压力模式（体力/药物）的预测能力。连续 612 例接受心肌灌注 SPECT（MPS）的患者完成了 quest。他们首先选择一个最能描述他们日常体力活动的类别。第二部分包含患者特征（性别、年龄、BMI 和静息心率）。计算活动评分并估计代谢当量（METs）。比较估计和实际结果。接受药物测试的患者（n=208）比接受体力压力测试的患者（n=404）对自己的表现估计更低：分别为 7.0±2.1 和 8.2±2.3 METs（P<0.0001）。后者显示估计和实际 METs 之间具有良好的相关性（r=0.63，P<0.0001）。关于压力模式的预测，曲线下面积（ROC）为 0.65（P<0.0001）。quest 可轻松应用于日常实践中，以评估 CAD 患者人群的 CF，并估计是否可以进行充分的体力压力测试。
