Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/23111
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Type: Journal article
Title: Drowning, haemodilution, haemolysis and staining of the intima of the aortic root - preliminary observations
Author: Byard, R.
Cains, G.
Simpson, E.
Eitzen, D.
Tsokos, M.
Citation: Journal of Clinical Forensic and Legal Medicine: an international journal of forensic and legal medicine, 2006; 13(3):121-124
Publisher: Churchill Livingstone
Issue Date: 2006
ISSN: 1353-1131
1532-2009
Statement of
Responsibility: 
Roger W. Byard, Glenda Cains, Ellie Simpson, David Eitzen and Michael Tsokos
Abstract: In order to demonstrate that hyponatraemia due to haemodilution occurs within the left ventricle following freshwater drowning, and to determine whether lysed blood resulting from left ventricular haemodilution may cause staining of the aortic intima, the following studies were undertaken. Measurements of left ventricular sodium levels were performed in 74 consecutive coronial cases where death was attributed to drowning, consisting of 44 and 30 deceased who were believed to be victims of freshwater and saltwater drowning, respectively. Left ventricular sodium levels differed significantly between the two groups (p < 0.001), with a range of 93–147 mmol/L in freshwater drowning (mean = 117 ± 14.2 mmol/L) and 123–183 in saltwater drowning (mean = 153 ± 14.4 mmol/L). In addition, the mean sodium level of 117 mmol/L in freshwater drowning was significantly lower than the standard range of 137–145 mmol/L. In a second study, portions of aorta and pulmonary trunk from a euthanised pig were soaked in lysed blood resulting in marked haemolytic staining of the intima of both vessels after 20 min. Water and a mixture of blood and water were then injected into the left ventricles in two further pig carcasses, respectively, resulting in haemolytic staining of the intima of the aortic roots, with no staining of the pulmonary trunks. These studies have confirmed that significant hyponatraemia secondary to haemodilution may occur within the left ventricle in freshwater drowning, and that haemolysed blood is capable of causing staining of the aortic root in an animal model. These results provide further data to support haemolytic staining of the aortic root intima as a possible manifestation of freshwater drowning.
Keywords: Aorta, Thoracic
Tunica Intima
Heart Ventricles
Animals
Swine
Humans
Drowning
Disease Models, Animal
Hemolysis
Hemodilution
Staining and Labeling
Predictive Value of Tests
Forensic Pathology
Fresh Water
Seawater
Adolescent
Adult
Aged
Aged, 80 and over
Middle Aged
Child
Child, Preschool
Infant
South Australia
Female
Male
Biomarkers
Rights: Copyright © 2006 Elsevier Ltd and AFP All rights reserved.
DOI: 10.1016/j.jcfm.2006.01.003
Appears in Collections:Aurora harvest 2
Pathology publications

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