alexa The Heart: Pressure-propulsion Pump Or Organ Of Impedance?
ISSN: 2155-9880

Journal of Clinical & Experimental Cardiology
Open Access

Like us on:
OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Share This Page

Additional Info

Loading
Loading Please wait..
 

15th World Cardiac Surgery & Angiology Conference
December 08-09, 2016 Philadelphia, USA

Branko Furst
Albany Medical College, USA
ScientificTracks Abstracts: J Clin Exp Cardiolog
DOI: 10.4172/2155-9880.C1.059
Abstract
In spite of the general agreement that the pressure gradient provided by the heart is the source of blood propulsion, the issue about the control of cardiac output (CO) continues to be the subject of a vigorous debate. A systematic review of the circulation models shows that the classic pressure propulsion (PP) model falls short of explaining an increasing number of circulatory phenomena. For example: the debate over the source of blood propulsion in the valve-less embryo heart remains unresolved; mechanical occlusion of the aorta results in a paradoxical increase in CO by 20-40% under controlled experimental conditions; a 4-5 fold increase in CO during aerobic exercise that exceeds the theoretical pumping capacity of the heart has long baffled exercise physiologists. It is proposed that the long-standing impasse in the debate over the control of CO can be resolved by adopting the phenomenon-based, evolutionary model of circulation. Evidence shows that the movement of blood is the primary phenomenon generated at the levels of the capillaries. It exists before the functional maturity of the heart and is intricately linked with metabolic demands of the tissues. Accordingly, the pressure in the vessels is a derived phenomenon resulting from the rhythmic interruption of flow by the heart in combination with the dynamic response of the peripheral vasculature. The heart thus functions as an impedance-pump generating pressure, but not the flow of blood. The importance of the proposed open-system, evolutionary circulation model for the understanding of basic physiology and clinical cardiology will be discussed and contrasted with the existing, closed-system PP models.
Biography

Branko Furst is a graduate of the University at Ljubljana Medical School, Slovenia and completed Post-graduate training in Anesthesiology in London, UK, before embarking on an academic career at Texas Tech University Health Sciences Center in El Paso, Texas. Presently he holds the position of Associate Professor of Anesthesiology at Albany Medical College in Albany, NY and divides his time between clinical work, resident education and research. His long-term research interest in circulation models has been summarized in a recently published book “The Heart and Circulation-An Integrative Model” (Springer, 2013). He has lectured on various aspects of circulation in the US and abroad.

Email: furstb@mail.amc.edu

image PDF   |   image HTML
 

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

agriaquaculture@omicsonline.com

1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

biochemjournals@omicsonline.com

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

business@omicsonline.com

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

chemistryjournals@omicsonline.com

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

clinicaljournals@omicsonline.com

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

engineeringjournals@omicsonline.com

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

nutritionjournals@omicsonline.com

1-702-714-7001Extn: 9042

General Science

Andrea Jason

generalscience@omicsonline.com

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

geneticsmolbio@omicsonline.com

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

immunomicrobiol@omicsonline.com

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

materialsci@omicsonline.com

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

nursinghealthcare@omicsonline.com

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

medicaljournals@omicsonline.com

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

neuropsychology@omicsonline.com

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

pharmajournals@omicsonline.com

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

social_politicalsci@omicsonline.com

1-702-714-7001Extn: 9042

 
© 2008- 2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords