Document Detail


Hemodynamic findings in severe tricuspid regurgitation.
MedLine Citation:
PMID:  22566375     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Tricuspid regurgitation (TR) most commonly occurs in response to right ventricular (RV) dilation with structural abnormalities in the tricuspid valve being rarer. In addition to RV size and valvular integrity, the amount of TR is influenced by RV preload and afterload, the respiratory cycle, left heart function and atrial fibrillation. Hemodynamic changes in right atrial (RA) pressures in severe TR include elevated mean pressures, a large systolic wave called an "s" wave, a prominent 'Y' descent and a blunted 'X' descent. In addition, RV end diastolic pressure is elevated and cardiac output is reduced, especially with exercise. "Ventricularization" of the RA pressure tracing, in which the contour of the RA pressure is similar to, but of lower amplitude than, the contour of the RV pressure is the most specific finding but is found in a minority of patients with severe TR. In summary, alterations in the RA pressure tracing are common in patients with severe TR but specific hemodynamic findings lack sensitivity, which may in part be due to the large effects of RV preload, RV afterload and RA compliance on the amount of TR. © 2012 Wiley Periodicals, Inc.
Authors:
S Rao; D A Tate; G A Stouffer
Related Documents :
22801445 - Interventional approaches for resistant hypertension.
8901465 - Biphasic changes in relaxation following reperfusion after myocardial ischemia.
3383385 - Failure of glycogen depletion to improve left ventricular function of the rabbit heart ...
22490325 - Minocycline-induced fulminant intracranial hypertension.
22801445 - Interventional approaches for resistant hypertension.
2912145 - Sphincteric action of the diaphragm during a relaxed lower esophageal sphincter in humans.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-4
Journal Detail:
Title:  Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions     Volume:  -     ISSN:  1522-726X     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100884139     Medline TA:  Catheter Cardiovasc Interv     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
Affiliation:
Division of Cardiology, University of North Carolina, Chapel Hill, NC.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Liver metastases from colorectal cancer: Technique of liver resection.
Next Document:  RODENT PARVOVIRUSES: MECHANISMS OF ONCOLYSIS AND PROSPECTS FOR CLINICAL CANCER TREATMENT.