Characteristics of sleep-disordered breathing in patients with atrial fibrillation and preserved left ventricular ejection fraction

Strotmann J, Fox H, Bitter T, Sauzet O, Horstkotte D, Oldenburg O (2018)
CLINICAL RESEARCH IN CARDIOLOGY 107(2): 120-129.

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Background Sleep-disordered breathing (SDB) represents a common and highly relevant co-morbidity in patients with atrial fibrillation (Afib). Obstructive sleep apnea (OSA) has been identified as an independent risk factor for developing Afib and for Afib recurrence after treatment, but the role of central sleep apnea (CSA) is less clear. This study investigated characteristics of SDB in Afib patients with preserved left ventricular ejection fraction (PEF). Methods and results Consecutive patients (07/2007 to 03/2016) with documented Afib at hospital admission and PEF undergoing 6-channel cardiorespiratory polygraphy (PG) screening were retrospectively analyzed. A total of 211 patients were included (146 men; age 68.7 +/- 8.5 years). Only 6.6% of patients had no SDB (apnea-hypopnea index [AHI] < 5/h). When moderate-to-severe SDB (AHI >= 15/h) was classified based on the predominant type of apneas and hypopneas, OSA (>= 80% obstructive events) was found in 15% of patients, CSA (>= 80% central events) in 10%, and 36% had mixed sleep apnea. For patients with Cheyne-Stokes respiration (CSR; 34%), time spent in CSR increased significantly as total AHI increased (p < 0.001); total CSR duration was 20, 50, and 117 min, respectively, in patients with mild, moderate, and severe SDB. Conclusions SDB was highly prevalent in this cohort of patients with Afib and PEF. The proportion of patients with moderate-to-severe OSA, for whom treatment is recommended by current guidelines, was about 15%. With 36% of patients presenting with moderate-to-severe mixed sleep apnea and almost 10% of patients having CSA, treatment guidelines for these types of SDB in the setting of Afib are needed.
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Strotmann J, Fox H, Bitter T, Sauzet O, Horstkotte D, Oldenburg O. Characteristics of sleep-disordered breathing in patients with atrial fibrillation and preserved left ventricular ejection fraction. CLINICAL RESEARCH IN CARDIOLOGY. 2018;107(2):120-129.
Strotmann, J., Fox, H., Bitter, T., Sauzet, O., Horstkotte, D., & Oldenburg, O. (2018). Characteristics of sleep-disordered breathing in patients with atrial fibrillation and preserved left ventricular ejection fraction. CLINICAL RESEARCH IN CARDIOLOGY, 107(2), 120-129. doi:10.1007/s00392-017-1163-5
Strotmann, J., Fox, H., Bitter, T., Sauzet, O., Horstkotte, D., and Oldenburg, O. (2018). Characteristics of sleep-disordered breathing in patients with atrial fibrillation and preserved left ventricular ejection fraction. CLINICAL RESEARCH IN CARDIOLOGY 107, 120-129.
Strotmann, J., et al., 2018. Characteristics of sleep-disordered breathing in patients with atrial fibrillation and preserved left ventricular ejection fraction. CLINICAL RESEARCH IN CARDIOLOGY, 107(2), p 120-129.
J. Strotmann, et al., “Characteristics of sleep-disordered breathing in patients with atrial fibrillation and preserved left ventricular ejection fraction”, CLINICAL RESEARCH IN CARDIOLOGY, vol. 107, 2018, pp. 120-129.
Strotmann, J., Fox, H., Bitter, T., Sauzet, O., Horstkotte, D., Oldenburg, O.: Characteristics of sleep-disordered breathing in patients with atrial fibrillation and preserved left ventricular ejection fraction. CLINICAL RESEARCH IN CARDIOLOGY. 107, 120-129 (2018).
Strotmann, Johanna, Fox, Henrik, Bitter, Thomas, Sauzet, Odile, Horstkotte, Dieter, and Oldenburg, Olaf. “Characteristics of sleep-disordered breathing in patients with atrial fibrillation and preserved left ventricular ejection fraction”. CLINICAL RESEARCH IN CARDIOLOGY 107.2 (2018): 120-129.
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