dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Universidade Federal de São Paulo (UNIFESP) | |
dc.contributor | Faculdade de Medicina de São José do Rio Preto (FAMERP) | |
dc.contributor | Universidade Estadual de Londrina (UEL) | |
dc.contributor | Fac Med ABC | |
dc.date.accessioned | 2014-05-20T13:23:25Z | |
dc.date.available | 2014-05-20T13:23:25Z | |
dc.date.created | 2014-05-20T13:23:25Z | |
dc.date.issued | 2011-01-01 | |
dc.identifier | International Journal of Chronic Obstructive Pulmonary Disease. Albany: Dove Medical Press Ltd, v. 6, p. 23-28, 2011. | |
dc.identifier | 1176-9106 | |
dc.identifier | http://hdl.handle.net/11449/7063 | |
dc.identifier | 10.2147/COPD.S15099 | |
dc.identifier | WOS:000208709800003 | |
dc.identifier | WOS000208709800003.pdf | |
dc.identifier | 2761396544058606 | |
dc.identifier | 9801061258149563 | |
dc.identifier | 5860525135106995 | |
dc.description.abstract | Background: It was reported that autonomic nervous system function is altered in subjects with chronic obstructive pulmonary disease (COPD). We evaluated short-and long-term fractal exponents of heart rate variability (HRV) in COPD subjects.Patients and methods: We analyzed data from 30 volunteers, who were divided into two groups according to spirometric values: COPD (n = 15) and control (n = 15). For analysis of HRV indices, HRV was recorded beat by beat with the volunteers in the supine position for 30 minutes. We analyzed the linear indices in the time (SDNN [standard deviation of normal to normal] and RMSSD [root-mean square of differences]) and frequency domains (low frequency [LF], high frequency [HF], and LF/HF), and the short-and long-term fractal exponents were obtained by detrended fluctuation analysis. We considered P < 0.05 to be a significant difference.Results: COPD patients presented reduced levels of all linear exponents and decreased short-term fractal exponent (alpha-1: 0.899 +/- 0.18 versus 1.025 +/- 0.09, P = 0.026). There was no significant difference between COPD and control groups in alpha-2 and alpha-1/alpha-2 ratio.Conclusion: COPD subjects present reduced short-term fractal correlation properties of HRV, which indicates that this index can be used for risk stratification, assessment of systemic disease manifestations, and therapeutic procedures to monitor those patients. | |
dc.language | eng | |
dc.publisher | Dove Medical Press Ltd | |
dc.relation | International Journal of Chronic Obstructive Pulmonary Disease | |
dc.relation | 1,395 | |
dc.rights | Acesso aberto | |
dc.source | Web of Science | |
dc.subject | pulmonary disease | |
dc.subject | chronic obstructive | |
dc.subject | heart rate | |
dc.subject | nervous system | |
dc.subject | cardiology | |
dc.title | Fractal correlation property of heart rate variability in chronic obstructive pulmonary disease | |
dc.type | Artículos de revistas | |