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Article Dans Une Revue BMC Pulmonary Medicine Année : 2021

Influence of nocturnal hypoxemia on follow-up course after type B acute aortic syndrome

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Introduction Association between sleep nocturnal breathing disorders and acute aortic syndrome (AAS) has been described but mid-term data are scarce. Objectives We assessed the prognostic value of sleep apnea parameters and their relationship with aortic morphology after the onset of a type B AAS. Methods Between January 2010 and January 2018, sleep apnea screening in post type B AAS was prospectively performed. The association of sleep apnea parameters with aortic morphology and aortic expansion during follow-up was studied. Results Over the 8-year-study period, 103 patients were included, with a mean age of 57.8 ± 12.1 years old. Median follow-up was 25.0 months (11.0–51.0). Thirty-two patients (31%) required aortic stenting during the acute phase. In patients treated by aortic stenting, the descending thoracic aortic diameter was positively associated with a higher percentage of nocturnal time of saturation ≤ 90% after adjustment (p = 0.016). During follow-up, the nocturnal time of saturation ≤ 90% in patients treated by medical therapy was the only parameter associated with significant aortic expansion rate (r = 0.26, p = 0.04). Thirty-eight patients started and sustained nocturnal ventilation during follow-up. The association between aortic expansion rate and nocturnal time of saturation ≤ 90% did not persist during follow-up after adjustment on nocturnal ventilation initiation (r = 0.25, p = 0.056). Conclusions Nocturnal hypoxemia parameters are positively associated with the max onset aortic diameter and significant aortic growth after type B AAS. Nocturnal ventilation seems to mitigate aortic expansion during follow-up.
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hal-03990733 , version 1 (15-02-2023)

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Pascal Delsart, Jerome Soquet, Adeline Pierache, Maxime Dedeken, Stephanie Fry, et al.. Influence of nocturnal hypoxemia on follow-up course after type B acute aortic syndrome. BMC Pulmonary Medicine, 2021, BMC Pulmonary Medicine, 21, pp.401. ⟨10.1186/s12890-021-01778-y⟩. ⟨hal-03990733⟩
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