DocumentCode :
473866
Title :
Unexpectedly, Cluster Headache does not appear to involve a cardiac autonomic problem, as reflected by continuous wavelet transform
Author :
Davrath, L.R. ; Mosek, A. ; Pinhas, I. ; Akselrod, S.
Author_Institution :
Abramson Center for Med. Phys., Tel Aviv Univ., Tel Aviv
fYear :
2006
fDate :
17-20 Sept. 2006
Firstpage :
857
Lastpage :
860
Abstract :
Cluster headache is a severe form of the primary headache syndromes, yet the basic pathology is unknown. We examined cardiac autonomic function in 14 subjects with Cluster Headache (CH) during headache period and 11 subjects in "quiescent" period (QP) versus a control group (C ,n=9). Subjects rested supine for 30 min before performing: Isometric Handgrip (HG) and Active Change in Posture (CP). Time frequency analysis of respiration, heart rate (HR) and continuous blood pressure (BP) was performed using a modified Continuous Wavelet Transform (CWT). There were no differences in HR or spectral content ofHR at any time. LF fluctuations in BP in response to CP were significantly greater in C compared with CH or QP. During HG, QP had significantly greater increases in BP than CH or C, despite similar LF of BP. We conclude that cardiac autonomic control is normal in CH, but less LF fluctuations in BP are required to increase BP.
Keywords :
biomechanics; cardiology; medical signal processing; patient diagnosis; patient monitoring; patient treatment; wavelet transforms; active change in posture; cardiac autonomic control; cardiac autonomic function; cardiac autonomic problem; cluster headache; continuous blood pressure; continuous wavelet transform; heart rate; isometric handgrip; respiration; supine rest; Blood pressure; Continuous wavelet transforms; Fluctuations; Heart rate; Mercury (metals); Pathology; Quadratic programming; Time frequency analysis; Wavelet analysis; Wavelet transforms;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computers in Cardiology, 2006
Conference_Location :
Valencia
Print_ISBN :
978-1-4244-2532-7
Type :
conf
Filename :
4511987
Link To Document :
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