Abstract
BackgroundAcute aortic syndromes (AASs) are prone to misdiagnosis by facilities with limited diagnostic experience. We assessed long-term trends in misdiagnosis among patients transferred to a tertiary care facility with presumed AASs. MethodsOur institutional transfer center database was queried for emergency transfers in patients with a diagnosis of AASs or thoracic aortic aneurysm between January 2008 and May 2018. There were 784 patients classified as emergency transfer for presumed AAS. Transferring diagnosis and actual diagnosis were compared through a review of physician notes and radiology reports from referring facilities and our center. ResultsMean age was 62 years, with 478 (61%) men. Differences in transferring diagnosis and actual diagnosis were identified in 89 patients (11.4%). Among misdiagnosed patients, the wrong classification of Stanford type A or type B dissections was identified among 24 patients (27%). No dissection was found in 23 patients (26%) with a referring diagnosis of aortic dissection. No signs of rupture were found in 18 patients (20%) transferred for contained/impending rupture. All misdiagnoses were secondary to misinterpretation of radiographic imaging, with motion artifacts in 14 (16%) and postsurgical changes in 22 (25%) being common sources of diagnostic error. Repeat scans were performed in 64 patients (72%) at our facility due to limited access to or suboptimal quality of outside imaging. ConclusionsAlthough AASs misdiagnosis rates appear to be improving from the prior decade, there are opportunities for improved physician awareness through campaigns such as “Think Aorta.” Centralized web-based imaging may prevent the costly hazards of unnecessary emergency transfer.
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