E-ISSN 1658-8223 | ISSN 1658-645X
 

Original Research (Original Article) 


Intrinsic Investigations of Physiological Interaction for Pulsatile Rotary Blood Pumps

Mohsen Bakouri.

Abstract
Background and Aim: One of the major concerns with the use of circulatory assist devices (CADs) is their performance during the transition from supine to standing position. In standing position, vasodilatation of veins occurs in the legs, which decreases left ventricular end-diastolic pressure, and, in turn, the preload to the CAD. This research numerically studies the physiological interaction of pulse left ventricular assist devices (LVADs) in relation to cardiac output and stroke volume under systolic and diastolic situations.

Methods: A cardiovascular system (CVS) model was used to configure the output of heart failure (HF) status by changing system parameters in one cardiac cycle, whereas LVAD pump was configured to change the fixed rotational speed. The terms of the pump cannulae model, real-time detection of aortic valve status, left ventricular stroke volume analysis, and LVAD control method were designed and analyzed.

Results: The results showed that end-diastolic left and right ventricular volumes – pressures in heart failure condition were reduced from 183 mL to 164 mL with continuous fixed speed RBP support, Alongside with a corresponding increase in ejection fraction (16%).

Conclusions: The results show that LVADs are more sensitive to preload than afterload when operating at a fixed speed.

Key words: Heart Failure, Rotary Blood Pumps, Cardiac Output, Cardio-vascular System.


 
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How to Cite this Article
Pubmed Style

Mohsen Bakouri. Intrinsic Investigations of Physiological Interaction for Pulsatile Rotary Blood Pumps. Majmaah J Heal Sci. 2020; 8(2): 106-114. doi:10.5455/mjhs.2020.02.012


Web Style

Mohsen Bakouri. Intrinsic Investigations of Physiological Interaction for Pulsatile Rotary Blood Pumps. http://www.mjhs-mu.org/?mno=43312 [Access: May 02, 2020]. doi:10.5455/mjhs.2020.02.012


AMA (American Medical Association) Style

Mohsen Bakouri. Intrinsic Investigations of Physiological Interaction for Pulsatile Rotary Blood Pumps. Majmaah J Heal Sci. 2020; 8(2): 106-114. doi:10.5455/mjhs.2020.02.012



Vancouver/ICMJE Style

Mohsen Bakouri. Intrinsic Investigations of Physiological Interaction for Pulsatile Rotary Blood Pumps. Majmaah J Heal Sci. (2020), [cited May 02, 2020]; 8(2): 106-114. doi:10.5455/mjhs.2020.02.012



Harvard Style

Mohsen Bakouri (2020) Intrinsic Investigations of Physiological Interaction for Pulsatile Rotary Blood Pumps. Majmaah J Heal Sci, 8 (2), 106-114. doi:10.5455/mjhs.2020.02.012



Turabian Style

Mohsen Bakouri. 2020. Intrinsic Investigations of Physiological Interaction for Pulsatile Rotary Blood Pumps. Majmaah Journal of Health Sciences, 8 (2), 106-114. doi:10.5455/mjhs.2020.02.012



Chicago Style

Mohsen Bakouri. "Intrinsic Investigations of Physiological Interaction for Pulsatile Rotary Blood Pumps." Majmaah Journal of Health Sciences 8 (2020), 106-114. doi:10.5455/mjhs.2020.02.012



MLA (The Modern Language Association) Style

Mohsen Bakouri. "Intrinsic Investigations of Physiological Interaction for Pulsatile Rotary Blood Pumps." Majmaah Journal of Health Sciences 8.2 (2020), 106-114. Print. doi:10.5455/mjhs.2020.02.012



APA (American Psychological Association) Style

Mohsen Bakouri (2020) Intrinsic Investigations of Physiological Interaction for Pulsatile Rotary Blood Pumps. Majmaah Journal of Health Sciences, 8 (2), 106-114. doi:10.5455/mjhs.2020.02.012





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