Prevalence and significance of incidentally noted dilation of the ascending aorta on routine chest computed tomography in older patients.
Prevalence and significance of incidentally noted dilation of the ascending aorta on routine chest computed tomography in older patients.
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DOI：
10.1097/rct.0000000000000167
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发表时间：
2015-01
影响因子：
1.3
通讯作者：
Hope MD
中科院分区：
文献类型：
--
作者：
Benedetti N;Hope MD
本研究的目的是确定55- 80岁接受常规计算机断层扫描的患者中偶然性升主动脉扩张的患病率及其随时间的意义。使用符合入选标准的64，092例患者的胸部计算机断层扫描报告来确定偶然升主动脉扩张（4-5 cm）的患病率，并在可能时确定主动脉生长率。进行了病历审查，以识别任何主动脉并发症或干预。偶然性主动脉扩张的发生率为2.7%（671/24，992例患者）。在327例主动脉扩张和随访研究（平均3.4年）的患者中，仅3.7%（n = 12）显示间期增长（平均0.9 mm/y）。没有患者根据主动脉大小或生长速度接受预防性手术或干预。1例患者发生A型夹层。目前的主动脉扩张的年度监测成像指南可以修改，以增加随访间隔和/或改善风险分层，以更好地识别最有可能发生疾病进展的患者的小子集。
The aim of this study was to determine the prevalence of incidental ascending aortic dilation and its significance over time in 55- to 80-year-olds undergoing routine computed tomographic scans. Chest computed tomography reports for 64,092 patients who met the inclusion criteria were used to determine the prevalence of incidental ascending aortic dilation (4–5 cm) and, when possible, aortic growth rates. A chart review was performed to identify any aortic complication or intervention. The prevalence of incidental aortic dilation was 2.7% (671/24,992 patients). Of the 327 patients with aortic dilation and follow-up studies (mean, 3.4 years), only 3.7% (n = 12) demonstrated interval growth (mean of 0.9 mm/y). No patient underwent prophylactic surgery or intervention on the basis of aortic size or growth rate. One patient developed a type A dissection. Current guidelines for yearly surveillance imaging of aortic dilation could be revised to increase the follow-up interval and/or improve risk stratification to better identify the small subset of patients most likely to have disease progression.