Title
Respiratory Sinus Arrhythmia in Apnea Patients With Apnea Associated Comorbidities
Abstract
The strength of the Respiratory Sinus Arrhythmia (RSA) in patients with Obstructive Sleep Apnea (OSA) might help to understand the correlation between apnea and Cardiovascular Diseases (CVD). For estimating the RSA, Heart Rate Variability (HRV) analyses can be used. The High Frequency (HF, 0.15 Hz-0.4 Hz) band of the power spectrum of the tachogram is recognized to contain the information related to breathing. However, this assumption might produce wrong RSA estimates, since the respiratory rate can occur outside the HF band. In this work, the strength of the RSA in OSA patients with apnea associated comorbidities was estimated using respiratory and electrocardiogram (ECG) signals. For this, the shared frequency content between respiration and HRV was characterized with methods that calculate respiratory frequency bands different to the HF. These methods were applied in a dataset of OSA patients and apnea-associated comorbidities. Even though there were no significant differences between groups, patients with more severe apnea and comorbidities presented an apparently higher RSA level. This observation might illustrate the function of the RSA as a compensation mechanism to reduce the workload exerted by the heart and to compensate for an abnormal blood pressure.
Year
DOI
Venue
2018
10.22489/CinC.2018.091
2018 Computing in Cardiology Conference (CinC)
Keywords
Field
DocType
respiratory rate,OSA patients,apnea associated comorbidities,shared frequency content,respiratory frequency bands,severe apnea,apparently higher RSA level,respiratory sinus arrhythmia,obstructive sleep apnea,heart rate variability analyses,RSA estimates,frequency 0.15 Hz to 0.4 Hz
Obstructive sleep apnea,Vagal tone,Heart rate variability,Internal medicine,Cardiology,Respiratory rate,Apnea,Blood pressure,Respiratory system,Breathing,Medicine
Conference
Volume
ISSN
ISBN
45
2325-8861
978-1-7281-0924-4
Citations 
PageRank 
References 
0
0.34
1
Authors
9
Name
Order
Citations
PageRank
John F. Morales100.68
Margot Deviaene202.03
Javier Milagro303.38
Dries Testelmans425.80
Bertien Buyse514.75
Raquel Bailón617631.28
Rik Willems775.17
Sabine Van Huffel81058149.38
Carolina Varon99222.90