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Author(s): Almeida, R
Dias, C
Maria Eduarda Silva
Rocha, AP
Title: ARFIMA-GARCH modeling of HRV: Clinical application in acute brain injury
Issue Date: 2017
Abstract: In the last decade, several HRV based novel methodologies for describing and assessing heart rate dynamics have been proposed in the literature with the aim of risk assessment. Such methodologies attempt to describe the non-linear and complex characteristics of HRV, and hereby the focus is in two of these characteristics, namely long memory and heteroscedasticity with variance clustering. The ARFIMA-GARCH modeling considered here allows the quantification of long range correlations and time-varying volatility. ARFIMA-GARCH HRV analysis is integrated with multimodal brain monitoring in several acute cerebral phenomena such as intracranial hypertension, decompressive craniectomy and brain death. The results indicate that ARFIMA-GARCH modeling appears to reflect changes in Heart Rate Variability (HRV) dynamics related both with the Acute Brain Injury (ABI) and the medical treatments effects. (c) 2017, Springer International Publishing AG.
Source: Complexity and Nonlinearity in Cardiovascular Signals
Document Type: Capítulo ou Parte de Livro
Rights: openAccess
Appears in Collections:FCUP - Capítulo ou Parte de Livro
FEP - Capítulo ou Parte de Livro
FMUP - Capítulo ou Parte de Livro

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