Systemic effects of shock and resuscitation monitored by visible hyperspectral imaging.

Abstract:

:Hyperspectral imaging (HSI) has been useful in monitoring several medical conditions, which to date have generally involved local changes in skin oxygenation of isolated regions of interest such as skin flaps or small burns. Here, by contrast, we present a study in which HSI was used to assess the local cutaneous manifestations of significant systemic events. HSI of the ventral surface of the lower jaw was used to monitor changes in skin oxygenation during hypovolemic shock induced by hemorrhage with additional pulmonary contusion injury in a porcine model, and to monitor the subsequent recovery of oxygenation with resuscitation. Quantitative and qualitative changes were observed in the level of skin oxygenation during shock and recovery. Quantitative values were obtained by fitting reference spectra of oxyhemoglobin and deoxyhemoglobin to sample spectra. Qualitative changes included changes in the observed spatial distribution or pattern of skin oxygenation. A mottled pattern of oxygen saturation was observed during hemorrhagic shock, but not observed during hypovolemic shock or following resuscitation. Historically, the assessment of skin color and mottling has been an important, albeit inexact, component of resuscitation algorithms. Now, it is possible to analyze these variables during shock and resuscitation in an objective manner. The clinical utility of these advances needs to be determined.

journal_name

Diabetes Technol Ther

authors

Gillies R,Freeman JE,Cancio LC,Brand D,Hopmeier M,Mansfield JR

doi

10.1089/152091503322527058

keywords:

subject

Has Abstract

pub_date

2003-01-01 00:00:00

pages

847-55

issue

5

eissn

1520-9156

issn

1557-8593

journal_volume

5

pub_type

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