Difference in pulse arrival time at forehead and at finger as a surrogate of pulse transit time

Lazaro, Jesús (Universidad de Zaragoza) ; Bailón, Raquel (Universidad de Zaragoza) ; Laguna, Pablo (Universidad de Zaragoza) ; Marozas, Vaidotas ; Rapalis, Andrius ; Gil, Eduardo (Universidad de Zaragoza)

Resumen: Pulse transit time (PTT) difference (PTTD) to the forehead and finger dynamics are compared to pulse arrival time towards the finger (PATF) dynamics during a tilt table test. Two frequency bands, where different physiological information is expected, are analyzed: low frequency (LF) influenced by both sympathetic and parasympathetic activity, and high frequency (HF) influenced by parasympathetic activity. As PATF, PTTD is influenced by PTT, but in contrast to PATF, PTTD is not influenced by the pre-ejection period (PEP). This is advantaging in certain applications such as arterial stiffness assessment or blood pressure estimation. Results showed higher correlation between PTTD and PATF during rest stages than during tilt stage, when the PEP dynamics have stronger effect in PATF dynamics. This suggests that PTTD variability can potentially be a surrogate of PTT variability that is not influenced by PEP, which is advantaging in the previously mentioned applications. However, further studies must be elaborated in order to evaluate the potential of PTTD in such specific applications.

Idioma: Inglés

DOI: 10.23919/CIC.2016.7868731

Año: 2016

Publicado en: Computing in Cardiology 43 (2016), 269-272
ISSN: 2325-8861

Originalmente disponible en: Texto completo de la revista

Financiación: info:eu-repo/grantAgreement/ES/DGA/T96
Financiación: info:eu-repo/grantAgreement/ES/FIS/PI12-00514
Financiación: info:eu-repo/grantAgreement/ES/MINECO/TEC2013-42140-R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/TIN2013-42140-R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/TIN2014-5356-R

Tipo y forma: Article (Published version)

Área (Departamento): Área Ingen.Sistemas y Automát. (Dpto. Informát.Ingenie.Sistms.)
Área (Departamento): Área Teoría Señal y Comunicac. (Dpto. Ingeniería Electrón.Com.)