| Arteriovenous fistula, blood flow, cardiac output, and left ventricle load in hemodialysis patients. | |
| | |
MedLine Citation:
|
PMID: 20449895 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The aim of this study was to investigate an association between vascular access blood flow (QVA), cardiac output(CO), and load of left ventricle (LLV) using a simple physical model calculation based on real data, specifically inpatients with high access blood flow arteriovenous fistula(AVF). Vascular access blood flow, CO, and peripheral vascular resistance (PR) were determined by ultrasound dilution technique (HD01; Transonic Systems, Inc., Ithaca, NY). Load of left ventricle was calculated using simplified formula: LLV x PR CO2. This total load was computationally divided into the part spent to run the flow QVA through the AVF (LLVAVF) and that part ensuring the flow (CO-QVA) through the vascular system. The model calculation was first performed in a selected group of 15 patients with high access blood flow (QVA >1,300 ml/min, group 1) and later extended for comparison by another group of 40 unselected patients with access blood flow in lower range (QVA range 200-1,400 ml/min, group 2).Mean LLV in group 1 was 2.10 +/- 0.68 W. LLV(AVF) was 21.8% of total LLV. Mean LLV in group 2 was 1.2 +/- 0.5 W.LLVAVF was 11.1% of total LLV. Our computational results suggest that AVF in typical range of QVA shall not increase heart load significantly. |
| | |
Authors:
|
Martin Válek; Frantisek Lopot; Vladimír Polakovic |
Related Documents
:
|
10547995 - Elimination of non-ionic contrast medium by hemodialysis in patients with impaired rena... 1562335 - Flow increases with an enlarging intravenous catheter. 22260505 - A content validated questionnaire for assessment of self reported venous blood sampling... 19169015 - Validity of internal filtration-enhanced hemodialysis as a new hemodiafiltration therapy. 12324915 - Mature form of adrenomedullin is a useful marker to evaluate blood volume in hemodialys... 22023335 - Frequency and specificity of the trima accel "verify wbcs" advisory: considerations for... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: ASAIO journal (American Society for Artificial Internal Organs : 1992) Volume: 56 ISSN: 1538-943X ISO Abbreviation: ASAIO J. Publication Date: 2010 May-Jun |
Date Detail:
|
Created Date: 2010-05-06 Completed Date: 2010-08-10 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9204109 Medline TA: ASAIO J Country: United States |
Other Details:
|
Languages: eng Pagination: 200-3 Citation Subset: IM |
Affiliation:
|
2nd Department of Internal Medicine,1st Faculty of Medicine, Charles University, U Nemocnice 2, 12808 Prague 2, Czech Republic. m.valek@seznam.cz |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Cardiac Output / physiology* Drug Administration Routes Female Heart Catheterization Heart Ventricles / physiopathology Hemodynamics* Humans Indicator Dilution Techniques Male Middle Aged Renal Dialysis / methods* Vascular Resistance |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Flow visualization of a monoleaflet and bileaflet mechanical heart valve in a pneumatic ventricular ...
Next Document: Noninvasive blood pressure measurement by the Nexfin monitor during reduced arterial pulsatility: a ...