A new measure of decompression sickness in the rat

In this study we assessed the reliability of a tilting-board grip score as a measure of decompression sickness in rats. In experiments using a hyperbaric compression/decompression protocol, rats were observed for signs of decompression sickness and their grip strength measured on a tilting particle...

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Main Authors: Buzzacott, Peter, Mazur, A., Wang, Q., Lambrechts, K., Theron, M., Mansourati, J., Guerrero, F.
Format: Journal Article
Published: Hindawi Publishing Corporation 2014
Online Access:http://hdl.handle.net/20.500.11937/73366
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author Buzzacott, Peter
Mazur, A.
Wang, Q.
Lambrechts, K.
Theron, M.
Mansourati, J.
Guerrero, F.
author_facet Buzzacott, Peter
Mazur, A.
Wang, Q.
Lambrechts, K.
Theron, M.
Mansourati, J.
Guerrero, F.
author_sort Buzzacott, Peter
building Curtin Institutional Repository
collection Online Access
description In this study we assessed the reliability of a tilting-board grip score as a measure of decompression sickness in rats. In experiments using a hyperbaric compression/decompression protocol, rats were observed for signs of decompression sickness and their grip strength measured on a tilting particle board hinged to a metal frame. Angles at which rats lost grip were converted to gravitational vectors. Decreased mean grip scores following decompression were fitted to a logistic regression model with strain, age, and weight. Decrease in grip score was significantly associated with observed decompression sickness (P=0.0036). The log odds ratio for decompression sickness = 1.40 (decrease in grip score). In rats with no decrease in mean grip score there was a 50% probability of decompression sickness (pDCS). This increased steadily with decreases in mean grip score. A decrease of 0.3 had a 60% pDCS, a decrease of 0.6 had a 70% pDCS, and a decrease of 2.1 had a 95% pDCS. The tilting board grip score is a reliable measure of the probability of decompression sickness. © 2014 Peter Buzzacott et al.
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spelling curtin-20.500.11937-733662018-12-13T09:35:31Z A new measure of decompression sickness in the rat Buzzacott, Peter Mazur, A. Wang, Q. Lambrechts, K. Theron, M. Mansourati, J. Guerrero, F. In this study we assessed the reliability of a tilting-board grip score as a measure of decompression sickness in rats. In experiments using a hyperbaric compression/decompression protocol, rats were observed for signs of decompression sickness and their grip strength measured on a tilting particle board hinged to a metal frame. Angles at which rats lost grip were converted to gravitational vectors. Decreased mean grip scores following decompression were fitted to a logistic regression model with strain, age, and weight. Decrease in grip score was significantly associated with observed decompression sickness (P=0.0036). The log odds ratio for decompression sickness = 1.40 (decrease in grip score). In rats with no decrease in mean grip score there was a 50% probability of decompression sickness (pDCS). This increased steadily with decreases in mean grip score. A decrease of 0.3 had a 60% pDCS, a decrease of 0.6 had a 70% pDCS, and a decrease of 2.1 had a 95% pDCS. The tilting board grip score is a reliable measure of the probability of decompression sickness. © 2014 Peter Buzzacott et al. 2014 Journal Article http://hdl.handle.net/20.500.11937/73366 10.1155/2014/123581 Hindawi Publishing Corporation restricted
spellingShingle Buzzacott, Peter
Mazur, A.
Wang, Q.
Lambrechts, K.
Theron, M.
Mansourati, J.
Guerrero, F.
A new measure of decompression sickness in the rat
title A new measure of decompression sickness in the rat
title_full A new measure of decompression sickness in the rat
title_fullStr A new measure of decompression sickness in the rat
title_full_unstemmed A new measure of decompression sickness in the rat
title_short A new measure of decompression sickness in the rat
title_sort new measure of decompression sickness in the rat
url http://hdl.handle.net/20.500.11937/73366