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Source: American Journal of Physiology. Heart and Circulatory Physiology
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Total 253 results found since Jan 2013.
Volume responsiveness revisited: an observational multicentre study of continuous versus binary outcomes combining echocardiography and venous return physiology
In conclusion, venous return physiology may enhance echocardiographic assessments of volume responsiveness, that should be based on continuous changes in stroke volume.PMID:37682234 | DOI:10.1152/ajpheart.00375.2023
Source: American Journal of Physiology. Heart and Circulatory Physiology - September 8, 2023 Category: Physiology Authors: Anders Aneman Luis Schulz Gwena ël Prat Michel Slama Philippe Vignon Antoine Vieillard-Baron Source Type: research
Selective elevation in external carotid artery flow during acute gravitational transition to microgravity during parabolic flight
This study sought to determine to what extent acute exposure to microgravity (0G) and related increases in central blood volume (CBV) during parabolic flight influence the regional redistribution of intra and extra cranial cerebral blood flow (CBF). Eleven healthy participants performed during two PF campaigns aboard the Airbus A310-ZERO G aircraft. The response of select variables for each of the 15 parabolas involving exposure to both 0G and hypergravity (1.8G) were assessed in the seated position. Mean arterial blood pressure (MAP) and heart rate (HR) were continuously monitored and used to calculate stroke volume (SV),...
Source: American Journal of Physiology. Heart and Circulatory Physiology - August 11, 2023 Category: Physiology Authors: Damien Lan éelle Shigehiko Ogoh Jean-Eudes Trihan Damian M Bailey Herv é Normand Source Type: research
Influence of Exercise Training on the Left Atrium:Implications for Atrial Fibrillation, Heart Failure and Stroke
Am J Physiol Heart Circ Physiol. 2023 Jul 28. doi: 10.1152/ajpheart.00322.2023. Online ahead of print.ABSTRACTThe left atrium (LA) plays a critical role in receiving pulmonary venous return and modulating left ventricular (LV) filling. With the onset of exercise, LA function contributes to the augmentation in stroke volume. Due to the growing focus on atrial imaging, there is now evidence that structural remodelling and dysfunction of the LA is associated with adverse outcomes including incident cardiovascular disease. In patients with established disease, pathological changes in atrial structure and function are associate...
Source: American Journal of Physiology. Heart and Circulatory Physiology - July 28, 2023 Category: Physiology Authors: Adrian Elliott Jonathan Ariyaratnam Erin J Howden Andr é La Gerche Prashanthan Sanders Source Type: research
