The jugular venous pulse (JVP) provides valuable information about cardiac haemodynamics and filling pressures and is an indirect estimate of the central venous pressure (CVP). Recently it has been proven that JVP can be obtained by measuring the cross-sectional area (CSA) of the IJV on each sonogram of an ultrasound B-mode sonogram sequence. It has also been proven that during its pulsation the IJV is distended and hence that the pressure gradient drives the IJV haemodynamics. If this is true, then it will imply the following: (i) the blood velocity in the IJV is a periodic function of the time with period equal to the cardiac period and (ii) the instantaneous blood velocity is given by a time function that can be derived from a flow-dynamics theory that uses the instantaneous pressure gradient as a parameter. The aim of the present study is to confirm the hypothesis that JVP regulates the IJV blood flow and that pressure waves are transmitted from the heart toward the brain through the IJV wall.

The oscillating component of the internal jugular vein flow: The overlooked element of cerebral circulation / Sisini, F.; Toro, E.; Gambaccini, M.; Zamboni, P.. - In: BEHAVIOURAL NEUROLOGY. - ISSN 0953-4180. - 2015:(2015), pp. 1707561-1707569. [10.1155/2015/170756]

The oscillating component of the internal jugular vein flow: The overlooked element of cerebral circulation

Toro E.;Zamboni P.
2015-01-01

Abstract

The jugular venous pulse (JVP) provides valuable information about cardiac haemodynamics and filling pressures and is an indirect estimate of the central venous pressure (CVP). Recently it has been proven that JVP can be obtained by measuring the cross-sectional area (CSA) of the IJV on each sonogram of an ultrasound B-mode sonogram sequence. It has also been proven that during its pulsation the IJV is distended and hence that the pressure gradient drives the IJV haemodynamics. If this is true, then it will imply the following: (i) the blood velocity in the IJV is a periodic function of the time with period equal to the cardiac period and (ii) the instantaneous blood velocity is given by a time function that can be derived from a flow-dynamics theory that uses the instantaneous pressure gradient as a parameter. The aim of the present study is to confirm the hypothesis that JVP regulates the IJV blood flow and that pressure waves are transmitted from the heart toward the brain through the IJV wall.
2015
Sisini, F.; Toro, E.; Gambaccini, M.; Zamboni, P.
The oscillating component of the internal jugular vein flow: The overlooked element of cerebral circulation / Sisini, F.; Toro, E.; Gambaccini, M.; Zamboni, P.. - In: BEHAVIOURAL NEUROLOGY. - ISSN 0953-4180. - 2015:(2015), pp. 1707561-1707569. [10.1155/2015/170756]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/332115
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 4
  • Scopus 11
  • ???jsp.display-item.citation.isi??? ND
social impact