Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Hemodynamic performance of stentless porcine bioprosthesis and mechanical bileaflet prosthesis using dobutamine stress echocardiography
Seminars in Thoracic and Cardiovascular Surgery, Volume 13, No. 4 SUPPL. 1, Year 2001
Notification
URL copied to clipboard!
Description
Currently available aortic valve prostheses have satisfactory hemodynamic performance during rest, but with exercise they possess different responses. The objective was to compare the hemodynamic response of the stentless porcine bioprosthesis (SP) and the mechanical bileaflet prosthesis (MB) at rest and during peak exercise using dobutamine stress echocardiography (DSE). DSE was used to evaluate the effective orifice area index (EOAI), peak and mean pressure gradients at rest and during maximum stress in 15 patients with SP (group T, mean age, 30.9 year) and another 15 patients with MB (group M, mean age, 28.6 year). The increment in pressure gradient (mean/peak) was significantly less in patients with SP than those with MB (P < .01). The EOAI did not change with exercise. At rest, both valve substitutes have satisfactory hemodynamics, but during exercise the stentless porcine bioprosthesis has better hemodynamics because it is less obstructive that justifies its use in young population. Copyright © 2001 by W.B. Saunders Company.
Authors & Co-Authors
Morsy, Sameh
Egypt, Cairo
Cardiac Surgery
Zahran, Mahmoud
Egypt, Cairo
Cardiac Surgery
Usama, Mohammed
Egypt, Cairo
Cardiac Surgery
Elkhashab, Khaled Ahmed
Egypt, Cairo
Cardiac Surgery
Aziz, Iglal Abdel
Egypt, Cairo
Cardiac Surgery
Statistics
Citations: 5
Authors: 5
Affiliations: 1
Identifiers
ISSN:
10430679
Study Design
Cross Sectional Study