Physiological influence of basic perturbations assessed by non-invasive optical techniques in humans
(2011) In Applied Physiology, Nutrition and Metabolism 36(6). p.946-957- Abstract
- New non-invasive techniques enabling frequent or continuous assessments of various pathophysiological conditions might be used to improve in-hospital outcome by enabling earlier and more reliable bedside detection of medical deterioration. In this preclinical study, three modern non-invasive optical techniques, laser Doppler imaging (LDI), near-infrared spectroscopy (NIRS), and tissue viability imaging (TVI), were all evaluated with respect to the influence of basic physiological perturbations (including local changes in arm positioning, skin temperature, and regional blood flow conditions) on quasi simultaneously obtained values of skin perfusion, muscle tissue oxygenation (StO2), and skin blood volume, recorded in eighteen healthy... (More)
- New non-invasive techniques enabling frequent or continuous assessments of various pathophysiological conditions might be used to improve in-hospital outcome by enabling earlier and more reliable bedside detection of medical deterioration. In this preclinical study, three modern non-invasive optical techniques, laser Doppler imaging (LDI), near-infrared spectroscopy (NIRS), and tissue viability imaging (TVI), were all evaluated with respect to the influence of basic physiological perturbations (including local changes in arm positioning, skin temperature, and regional blood flow conditions) on quasi simultaneously obtained values of skin perfusion, muscle tissue oxygenation (StO2), and skin blood volume, recorded in eighteen healthy volunteers. Skin perfusion measured by LDI responded prominently to changes in positioning of the arm, whereas muscle StO2 measured by NIRS did not change significantly. Total haemoglobin count (HbT) measured by NIRS and blood volume estimated by TVI both increased significantly on lowering of the limb. On local cooling, the perfusion and blood volume were both found to increase considerably, while StO2 and HbT did not change. Local heating induced a more than 10-fold increase in skin perfusion and a small increase in blood volume. On progressive venoarterial occlusion, the perfusion, StO2, HbT, and blood volume values decreased, after transient increases in HbT and blood volume before full arterial occlusion occurred, and all values approached the baseline level on release of the occlusion with a slight overshoot of the StO2. The results obtained have potential bearing on future utilization of these non-invasive techniques in the management of severely injured and (or) critically ill patients. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2258616
- author
- Krite Svanberg, Emilie LU ; Wollmer, Per LU ; Andersson-Engels, Stefan LU and Åkeson, Jonas LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- near infrared spectroscopy, laser Doppler imaging, tissue viability imaging, limb positioning, heating, cooling, vascular occlusion
- in
- Applied Physiology, Nutrition and Metabolism
- volume
- 36
- issue
- 6
- pages
- 946 - 957
- publisher
- National Research Council Canada
- external identifiers
-
- wos:000299777200019
- scopus:82455186366
- pmid:22111558
- ISSN
- 1715-5320
- DOI
- 10.1139/h11-119
- language
- English
- LU publication?
- yes
- id
- c83b682e-7955-4170-ba35-71c9a0665690 (old id 2258616)
- date added to LUP
- 2016-04-04 07:57:09
- date last changed
- 2023-09-05 13:45:55
@article{c83b682e-7955-4170-ba35-71c9a0665690,
abstract = {{New non-invasive techniques enabling frequent or continuous assessments of various pathophysiological conditions might be used to improve in-hospital outcome by enabling earlier and more reliable bedside detection of medical deterioration. In this preclinical study, three modern non-invasive optical techniques, laser Doppler imaging (LDI), near-infrared spectroscopy (NIRS), and tissue viability imaging (TVI), were all evaluated with respect to the influence of basic physiological perturbations (including local changes in arm positioning, skin temperature, and regional blood flow conditions) on quasi simultaneously obtained values of skin perfusion, muscle tissue oxygenation (StO2), and skin blood volume, recorded in eighteen healthy volunteers. Skin perfusion measured by LDI responded prominently to changes in positioning of the arm, whereas muscle StO2 measured by NIRS did not change significantly. Total haemoglobin count (HbT) measured by NIRS and blood volume estimated by TVI both increased significantly on lowering of the limb. On local cooling, the perfusion and blood volume were both found to increase considerably, while StO2 and HbT did not change. Local heating induced a more than 10-fold increase in skin perfusion and a small increase in blood volume. On progressive venoarterial occlusion, the perfusion, StO2, HbT, and blood volume values decreased, after transient increases in HbT and blood volume before full arterial occlusion occurred, and all values approached the baseline level on release of the occlusion with a slight overshoot of the StO2. The results obtained have potential bearing on future utilization of these non-invasive techniques in the management of severely injured and (or) critically ill patients.}},
author = {{Krite Svanberg, Emilie and Wollmer, Per and Andersson-Engels, Stefan and Åkeson, Jonas}},
issn = {{1715-5320}},
keywords = {{near infrared spectroscopy; laser Doppler imaging; tissue viability imaging; limb positioning; heating; cooling; vascular occlusion}},
language = {{eng}},
number = {{6}},
pages = {{946--957}},
publisher = {{National Research Council Canada}},
series = {{Applied Physiology, Nutrition and Metabolism}},
title = {{Physiological influence of basic perturbations assessed by non-invasive optical techniques in humans}},
url = {{http://dx.doi.org/10.1139/h11-119}},
doi = {{10.1139/h11-119}},
volume = {{36}},
year = {{2011}},
}