Document Detail


Left ventricular diastolic function in patients on hemodialysis.
MedLine Citation:
PMID:  20517163     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND: Previous studies have shown that the assessment of Doppler mitral flow velocity (DMFV) curves can be used to predict prognosis owing to left ventricular (LV) diastolic dysfunction in certain specific diseases. Our aim was to study whether the prognostic value of DMFV curves is affected by the many end-stage renal disease factors, such as chronic uremia and long-term hemodialysis (HD), which cause LV diastolic dysfunction and death.
METHODS: Retrospective echo Doppler studies obtained 10 to 12 hours after HD in 90 patients (52 males; mean age, 56 years) were analyzed to determine changes in deceleration time (DT) of the early mitral filling wave (E) and the ratio of E to the atrial velocity (A). The study findings (n = 83) showed 2 groups of DT: long DT (DT > 240 milliseconds) and normal/short DT (DT <or= 240 milliseconds). Continuous variables of LV size using internal dimensions, systolic function using ejection fraction, hypertrophy using wall thickness and mass, and pulmonary hypertension and E/A were compared between the 2 groups.
RESULTS: Patients with long DT versus normal/short DT had lower absolute and indexed LV mass (P = 0.03 and P = 0.02, respectively) and pulmonary hypertension (P <or= 0.001), without a significant difference in LV systolic function or E/A. The mortality rate, adjusted for age and sex, was lower with long DT versus normal/short DT, with a hazard ratio of death, 0.44 (95% confidence interval, 0.23-0.86, P = 0.02).
CONCLUSIONS: Our study identified characteristics of DMFV curves in patients on long-term HD, which are clearly of value in predicting outcomes and survival in these patients.
Authors:
Veena Raizada; Betty Skipper; Robert A Taylor; Wentao Luo; Antonia A Harford; Philip G Zager; Mark Rohrscheib; Charles T Spalding
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Journal of investigative medicine : the official publication of the American Federation for Clinical Research     Volume:  58     ISSN:  1708-8267     ISO Abbreviation:  J. Investig. Med.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9501229     Medline TA:  J Investig Med     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  791-5     Citation Subset:  IM    
Affiliation:
Department of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, NM 87131-0001, USA. vraizada@salud.unm.edu
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MeSH Terms
Descriptor/Qualifier:
Grant Support
ID/Acronym/Agency:
5M01 RR00997/RR/NCRR NIH HHS

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