Title
Baroreflex analysis in diabetes mellitus: linear and nonlinear approaches.
Abstract
The aim of our study was to employ novel nonlinear synchronization approaches as a tool to detect baroreflex impairment in young patients with subclinical autonomic dysfunction in Type 1 diabetes mellitus (DM) and compare them to standard linear baroreflex sensitivity (BRS) methods. We recorded beat-to-beat pulse interval (PI) and systolic blood pressure (SBP) in 14 DM patients and 14 matched healthy controls. We computed the information domain synchronization index (IDSI), cross-multiscale entropy, joint symbolic dynamics, information-based similarity index (IBSI) in addition to time domain and spectral measures of BRS. This multi parametric analysis showed that baroreflex gain is well-preserved, but the time delay within the baroreflex loop is significantly increased in patients with DM. Further, the level of similarity between blood pressure and heart rate fluctuations was significantly reduced in DM. In conclusion, baroreflex function in young DM patients is changed. The quantification of nonlinear similarity and baroreflex delay in addition to baroreflex gain may provide an improved diagnostic tool for detection of subclinical autonomic dysfunction in DM.
Year
DOI
Venue
2011
10.1007/s11517-010-0707-x
Med. Biol. Engineering and Computing
Keywords
Field
DocType
baroreflex sensitivitydiabetes mellitus � nonlinear analysissynchronization,symbolic dynamics,blood pressure,indexation,parametric analysis,diabetes mellitus,time domain,systolic blood pressure
Nonlinear system,Baroreflex,Pulse (signal processing),Blood pressure,Artificial intelligence,Heart rate,Computer vision,Diabetes mellitus,Internal medicine,Cardiology,Subclinical infection,Type 1 diabetes,Mathematics,Endocrinology
Journal
Volume
Issue
ISSN
49
3
1741-0444
Citations 
PageRank 
References 
8
1.32
3
Authors
8