Abstract
Background: Arterial dissection represents a rare but significant cause of ischemic stroke. We hypothesized that the detection rate of arterial dissections has increased in recent decades. Objective: To determine the incidence of cervical artery dissection in a defined population. Methods: We identified Olmsted County, Minnesota residents diagnosed with carotid artery or vertebral artery dissection between 2002 and 2020 using the Rochester Epidemiology Project database. Patients who had suffered major trauma, were under 18 years of age or had intracranial artery dissections were excluded. Virtually all Olmsted County residents receive their medical care within the participating health systems, leading to a high likelihood of complete case ascertainment. We assessed longitudinal trends by dividing the data into 5-year time windows, with the last being a 4-year interval. Incidence rates were adjusted for age and sex. Results: In a 19-year period from 2002 through 2020, 127 patients with a diagnosis of cervical artery dissection were identified. There were 64 females (50.4%) and 63 males (49.6%). The average age at diagnosis was 51.2 years (SD 15.7). There were 63 internal carotid artery dissections (ICAD), 60 vertebral artery dissections (VAD), and three common carotid artery dissections (CCAD) identified. One patient had ICAD and VAD at diagnosis. The overall incidence rate of detection for cervical artery dissection, adjusted for age and sex, was 4.9 per 100,000 person-years (py) (95% CI, 4.0 to 5.7). The incidence rate of ICAD was 2.5 per 100,000 py (95% CI, 1.8 to 3.1). The incidence rate of VAD was 2.3 per 100,000 py (95% CI, 1.7 to 2.9). The incidence rate of CAD gradually increased over time from 2.3 per 100,000 py (95% CI, 1.1 to 3.5) in 2002-2006 to 9.4 per 100,000 py (95% CI, 6.9 to 11.8) in 2017-2020, a 4.2-fold increase. Conclusion: The incidence of detection rate of cervical artery dissection increased over four-fold in the last 19 years. This can potentially be attributed to increased usage of non-invasive angiographic imaging.
Published Version
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