NDLI: Chemical instability, state instability and arousals in the pathogenesis of Periodic Breathing in heart failure patients

Content Provider	IEEE Xplore Digital Library
Author	Pinna, G.D. Maestri, R. Robbi, E. La Rovere, M.T.
Copyright Year	2008
Description	Author affiliation: Dept. of Biomed. Eng., S Maugeri Found., Montescano, Italy (Pinna, G.D.; Maestri, R.) \|\| Dept. of Cardiology, S Maugeri Found., Montescano, Italy (Robbi, E.; La Rovere, M.T.)
Abstract	Periodic Breathing (PB, cyclic waxing and waning of tidal volume) is very common in heart failure patients. It is commonly thought that PB is caused by an instability in the closed-loop chemical control of ventilation. Some investigators, however, have suggested that it may also result from fluctuations in sleep/wake state, namely state instability. The aim of this study was i) to set up a methodology for semi-automated state fluctuation analysis and ii) to assess whether state instability is a necessary condition for the development of PB. We carried out daytime and nighttime standard polysomnographic recordings in 9 patients. During daytime, 86% of state transitions were synchronous with an apneic event. Synchronous state and ventilatory changes were also observed during nighttime, but during the deeper stages of sleep PB occurred without concurrent state transitions. We conclude that state instability is not necessary for the development of PB.
Starting Page	145
Ending Page	148
File Size	201373
Page Count	4
File Format	PDF
ISBN	9781424437061
ISSN	02766547
DOI	10.1109/CIC.2008.4748998
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-14
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Computers in Cardiology(CinC)
Subject Keyword	Chemicals Pathogens Heart Sleep Fluctuations Cardiology Ventilation Electroencephalography Protocols Phase detection
Content Type	Text
Resource Type	Article

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