To evaluate the relationship between lesion's severity and nonlinear indexes of HRV, 20 first-ever stroke subjects and 10 healthy subjects were studied. All patients, divided in two groups according to presence of single or multiple medium cerebral artery lesion, underwent to a 24-hour Hotter ECG recording. All RR time series were analyzed by Poincare Plot, fractal dimension, power-law behaviour, spectral and time- domain techniques. A direct relationship between increasing lesion's severity and progressive collapsing of PPlots and FD index was observed, while lower significance were found for beta exponent, spectral and time-domain parameters. These results suggest that PPlots and FD analysis contains relevant information related to different HRV dynamics in normal and stroke subjects with different lesion's severity.
Effects of stroke localization on nonlinear indexes of HRV / D'Addio, G.; Accardo, A.; Corbi, G.; Russo, G.; Pinna, G. D.; Ferrara, Nicola; Rengo, F.. - In: COMPUTERS IN CARDIOLOGY. - ISSN 0276-6574. - 33:(2006), pp. 621-624.
Effects of stroke localization on nonlinear indexes of HRV
Corbi G.;FERRARA, NICOLA;
2006
Abstract
To evaluate the relationship between lesion's severity and nonlinear indexes of HRV, 20 first-ever stroke subjects and 10 healthy subjects were studied. All patients, divided in two groups according to presence of single or multiple medium cerebral artery lesion, underwent to a 24-hour Hotter ECG recording. All RR time series were analyzed by Poincare Plot, fractal dimension, power-law behaviour, spectral and time- domain techniques. A direct relationship between increasing lesion's severity and progressive collapsing of PPlots and FD index was observed, while lower significance were found for beta exponent, spectral and time-domain parameters. These results suggest that PPlots and FD analysis contains relevant information related to different HRV dynamics in normal and stroke subjects with different lesion's severity.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.