Mechanistic insights on age-related changes in heart-aorta-brain hemodynamic coupling using a pulse wave model of the entire circulatory system

A Aghilinejad, F Amlani… - American Journal …, 2023 - journals.physiology.org
Age-related changes in aortic biomechanics can impact the brain by reducing blood flow
and increasing pulsatile energy transmission. Clinical studies have shown that impaired …

On the longitudinal wave pumping in fluid-filled compliant tubes

A Aghilinejad, B Rogers, H Geng, NM Pahlevan - Physics of Fluids, 2023 - pubs.aip.org
This study investigates the physics of the longitudinal stretching-based wave pumping
mechanism, a novel extension of the traditional impedance pump. In its simplest form, an …

Dynamic effects of aortic arch stiffening on pulsatile energy transmission to cerebral vasculature as a determinant of brain-heart coupling

A Aghilinejad, F Amlani, KS King, NM Pahlevan - Scientific reports, 2020 - nature.com
Aortic stiffness increases with age and is a robust predictor of brain pathology including
Alzheimer's and other dementias. Aging causes disproportionate stiffening of the aorta …

Optimization of topological complexity for one-dimensional arterial blood flow models

FE Fossan, J Mariscal-Harana… - Journal of the …, 2018 - royalsocietypublishing.org
As computational models of the cardiovascular system are applied in modern personalized
medicine, maximizing certainty of model input becomes crucial. A model with a high number …

Scalability of cardiovascular intrinsic frequencies: validations in preclinical models and non-invasive clinical studies

R Alavi, W Dai, F Amlani, DG Rinderknecht, RA Kloner… - Life Sciences, 2021 - Elsevier
Abstract Aims Cardiovascular intrinsic frequencies (IFs) are associated with cardiovascular
health and disease, separately capturing the systolic and diastolic information contained in a …

The global effect of aortic coarctation on carotid and renal pulsatile hemodynamics

D Rafiei, NM Pahlevan - PloS one, 2024 - journals.plos.org
Coarctation of the aorta (CoA) is a congenital disease characterized by the narrowing of the
aorta, typically the descending portion after the left subclavian artery. If left untreated, by the …

[HTML][HTML] Impact of Aging on the Cardiovascular System: Mechanistic insights on age-related changes in heart-aorta-brain hemodynamic coupling using a pulse wave …

A Aghilinejad, F Amlani, SP Mazandarani… - American Journal of …, 2023 - ncbi.nlm.nih.gov
Age-related changes in aortic biomechanics can impact the brain by reducing blood flow
and increasing pulsatile energy transmission. Clinical studies have shown that impaired …

Second systolic peak in fetal middle cerebral artery Doppler after intrauterine transfusion

L Vonzun, N Ochsenbein-Kölble, D Balsyte… - Archives of Gynecology …, 2023 - Springer
Objective To evaluate functional relationship between fetal circulatory response to
intrauterine transfusion (IUT) as a circulatory challenge and appearance of second systolic …

Estimation of wave condition number from pressure waveform alone and its changes with advancing age in healthy women and men

NM Pahlevan, SP Mazandarani - Frontiers in Physiology, 2020 - frontiersin.org
Introduction The wave condition number (WCN) is a non-dimensional number that
determines the state of arterial wave reflections. WCN is equal to HR× L eff/PWV where HR …

Non-dimensional physics of pulsatile cardiovascular networks and energy efficiency

B Yigit, K Pekkan - Journal of The Royal Society …, 2016 - royalsocietypublishing.org
In Nature, there exist a variety of cardiovascular circulation networks in which the energetic
ventricular load has both steady and pulsatile components. Steady load is related to the …