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Geissenberger, Fabian; Schwarz, Florian; Probst, Michael; Haberl, Sabine; Parkhe, Asawari; Faul, Christian; Lewinski, Dirk von; Kroencke, Thomas; Schwaiblmair, Martin; Scheidt, Wolfgang von und Berghaus, Thomas M. (2020): Obstructive sleep apnea is associated with pulmonary artery thrombus load, disease severity, and survival in acute pulmonary embolism. In: Clinical Research in Cardiology, Bd. 109, Nr. 1: S. 13-21

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Abstract

Introduction: Obstructive sleep apnea (OSA) may have prothrombotic effects. Objective: To investigate the effect of OSA on disease severity, pulmonary artery thrombus load, and prognosis in patients with acute pulmonary embolism (PE). Methods: In 101 PE patients, disease severity was determined by the simplified PE severity index (sPESI) score, pulmonary artery thrombus load was quantified by the pulmonary artery obstruction index (PAOI), and sleep-disordered breathing was evaluated by nocturnal polygraphy. Results: Obstructive sleep apnea patients with an apnea-hypopnea index (AHI) >= 15/h cohort were significantly older (p < 0.001) and had significantly lower oxygen saturations (p = 0.008) when acute PE was diagnosed. The sPESI scores (p < 0.001), the PAOI (p = 0.005) and the N-terminal pro-brain-type natriuretic peptide (NT-proBNP) values (p = 0.009), were significantly higher in the AHI >= 15/h subgroup. In a multivariate regression analysis, the AHI remains a significant predictor for sPESI scores >= 1 (p = 0.003), increased NT-proBNP levels (p = 0.047), and elevated PAOI (p = 0.032). During the median follow-up time of 53 (interquartile range 38-70) months, all-cause and cardiovascular-related mortality was significantly higher in the AHI >= 15/h cohort (p = 0.004 and p = 0.015, respectively). Conclusions: Obstructive sleep apnea is associated with pulmonary artery thrombus load, disease severity, and survival in acute PE possibly due to its prothrombotic effects.

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