Please use this identifier to cite or link to this item: http://ahro.austin.org.au/austinjspui/handle/1/9986
Title: Renal blood flow in sepsis.
Authors: Langenberg, Christoph;Bellomo, Rinaldo;May, Clive N;Wan, Li;Egi, Moritoki;Morgera, Stanislao
Affiliation: Department of Intensive Care, Austin Hospital, and University of Melbourne, Heidelberg, Melbourne, Australia
Issue Date: 24-May-2005
Citation: Critical Care (london, England) 2005; 9(4): R363-74
Abstract: To assess changes in renal blood flow (RBF) in human and experimental sepsis, and to identify determinants of RBF.Using specific search terms we systematically interrogated two electronic reference libraries to identify experimental and human studies of sepsis and septic acute renal failure in which RBF was measured. In the retrieved studies, we assessed the influence of various factors on RBF during sepsis using statistical methods.We found no human studies in which RBF was measured with suitably accurate direct methods. Where it was measured in humans with sepsis, however, RBF was increased compared with normal. Of the 159 animal studies identified, 99 reported decreased RBF and 60 reported unchanged or increased RBF. The size of animal, technique of measurement, duration of measurement, method of induction of sepsis, and fluid administration had no effect on RBF. In contrast, on univariate analysis, state of consciousness of animals (P = 0.005), recovery after surgery (P < 0.001), haemodynamic pattern (hypodynamic or hyperdynamic state; P < 0.001) and cardiac output (P < 0.001) influenced RBF. However, multivariate analysis showed that only cardiac output remained an independent determinant of RBF (P < 0.001).The impact of sepsis on RBF in humans is unknown. In experimental sepsis, RBF was reported to be decreased in two-thirds of studies (62 %) and unchanged or increased in one-third (38%). On univariate analysis, several factors not directly related to sepsis appear to influence RBF. However, multivariate analysis suggests that cardiac output has a dominant effect on RBF during sepsis, such that, in the presence of a decreased cardiac output, RBF is typically decreased, whereas in the presence of a preserved or increased cardiac output RBF is typically maintained or increased.
Internal ID Number: 16137349
URI: http://ahro.austin.org.au/austinjspui/handle/1/9986
DOI: 10.1186/cc3540
URL: http://www.ncbi.nlm.nih.gov/pubmed/16137349
Type: Journal Article
Subjects: Animals
Cardiac Output
Disease Models, Animal
Hemodynamics
Humans
Models, Biological
Renal Circulation
Sepsis.physiopathology
Appears in Collections:Journal articles

Files in This Item:
File Description SizeFormat 
16137349.pdf425.74 kBAdobe PDFThumbnail
View/Open


Items in AHRO are protected by copyright, with all rights reserved, unless otherwise indicated.