Department of Translational Medical Sciences, University Federico II, Via Pansini 5, 80131, Naples, Italy.
Department of Advanced Biomedical Sciences, University Federico II, Naples, Italy.
J Nucl Cardiol. 2019 Jun;26(3):998-1006. doi: 10.1007/s12350-017-1154-y. Epub 2018 Jan 11.
The concept of warranty period, the duration of time during which the patient's risk remains low, is appealing. However, some points remain to be resolved before its translation in the clinical arena. Methodological issues should be standardized in order to compare the results of studies in different patient populations. Also, the definition of a "normal" study should always take into consideration the history of prior revascularization, the achieved level of exercise, and the stressor used. The promise of warranty can be questioned by the patient's baseline demographic and clinical characteristics and may also be influenced by life-style modification in the course of the follow-up. The "warranty period" concept should shift from data reflecting the time to a cardiac event to the development of ischemia, given an opportunity for intervention before a cardiac event occurs. In this context, clarify the role of serial imaging can be extremely useful, in particular to evaluate if and when retesting a patient after a normal scan.
质保期的概念，即患者风险保持较低水平的时间段，很有吸引力。然而，在将其应用于临床领域之前，仍有一些问题需要解决。为了比较不同患者群体研究的结果，方法学问题应标准化。此外，“正常”研究的定义应始终考虑到先前血运重建的病史、达到的运动水平和使用的应激源。患者的基线人口统计学和临床特征可能会对质保期的承诺提出质疑，而且在随访过程中的生活方式改变也可能会影响质保期的承诺。“质保期”的概念应该从反映发生心脏事件时间的数据转移到缺血的发生，以便在发生心脏事件之前有机会进行干预。在这种情况下，明确连续成像的作用可能非常有用，特别是在评估在正常扫描后患者是否以及何时需要再次检查。
