Obstructive sleep apnoea and the progression of thoracic aortic aneurysm: a prospective cohort study
Background: Obstructive sleep apnoea (OSA) is associated with an increased prevalence of aortic aneurysms and it has also been suggested that severe OSA furthers aneurysm expansion in the abdomen. We evaluated whether OSA is a risk factor for the progression of ascending thoracic aortic aneurysm (TA...
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Veröffentlicht in: | The European respiratory journal 2021-05, Vol.57 (5), p.2003322, Article 2003322 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Background: Obstructive sleep apnoea (OSA) is associated with an increased prevalence of aortic aneurysms and it has also been suggested that severe OSA furthers aneurysm expansion in the abdomen. We evaluated whether OSA is a risk factor for the progression of ascending thoracic aortic aneurysm (TAA). Methods: Patients with TAA underwent yearly standardised echocardiographic measurements of the ascending aorta over 3 years and two level III sleep studies. The primary outcome was the expansion rate of TAA in relation to the apnoea-hypopnoea index (AHI). Secondary outcomes included surveillance for aortic events (composite end-points of rupture/dissection, elective surgery or death). Results: Between July 2014 and March 2020, 230 patients (median age 70 years, 83.5% male) participated in the cohort. At baseline, 34.8% of patients had AHI.15 events.h(-1). There was no association between TAA diameter and AHI at baseline. After 3 years, mean +/- SD expansion rates were 0.55 +/- 1.25 mm at the aortic sinus and 0.60 +/- 1.12 mm at the ascending aorta. In the regression analysis, after controlling for baseline diameter and cardiovascular risk factors, there was strong evidence for a positive association of TAA expansion with AHI (aortic sinus estimate 0.025 mm, 95% CI 0.009-0.040 mm; p |
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ISSN: | 0903-1936 1399-3003 |
DOI: | 10.1183/13993003.03322-2020 |