Laser Doppler Imaging – The Role of Poor Burn Perfusion in Predicting Healing Time and Guiding Operative Management

Shahid, Shahab, Duarte, Marco C., Zhang, Jufen, Markeson, Daniel and Barnes, David (2022) Laser Doppler Imaging – The Role of Poor Burn Perfusion in Predicting Healing Time and Guiding Operative Management. Burns: Journal of the International Society for Burn Injuries. ISSN 1879-1409

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Official URL: https://doi.org/10.1016/j.burns.2022.02.009

Abstract

Aim- To identify if the proportion of poor blood flow (blue) within an LDI (Laser doppler Imaging) image of a burn independently correlates with healing time. Methods- Patient age, gender, burn type, and burn surface area were collected from the IBID (International Burn Injury Database). All LDI images were copied from the MoorLDI2-BI- Laser Doppler (MLDI) Scanner, onto Adobe Photoshop® version 2020 for pixel counting analysis and calculation of % TBSA (Total Body Surface Area) blue. Multiple linear regression analysis determined if there was a proportional relationship of each parameter (age, gender, % TBSA Blue and comorbidities) with healing time. Results- 110 patients with 197 burns were scanned with MLDI. Median age was 5 years (IQR 1–6). Median burn surface area was 1.5% (IQR 1–2.4). 56.4% of patients were male and patients were scanned an average of 2.68 days (SD±1.37) following burn injury. Number of physical comorbidities and age were found to have a statistically significant relationship with healing time (p = 0.03, p = 0.002). Gender and %TBSA blue did not have a statistically significant relationship with healing time (p = 0.07 and p = 0.058 respectively). There was a statistically significant difference in the mean healing time between burns with and without blue (3.43 weeks vs. 2.80 weeks, p = 0.0001). % TBSA Blue was more than four times higher in the operated group (0.48% vs. 0.11%) and was shown to have a statistically significant relationship with decision to operate (p = 0.027). Positive predictive value for the presence of blue on operative rate was 71.6%. Age, gender and number of comorbidities did not have a statistically significant influence on operative rate (p = 0.07, p = 0.50 and p = 0.49). Conclusion- % TBSA blue was not found to be a reliable individual indicator of burn healing time, but the presence of blue within an LDI image, advanced patient age and increased number of comorbidities did have a statistically significant relationship with healing time. This suggests their standardised inclusion into management decisions regarding intermediate depth burns is warranted.

Item Type: Journal Article
Keywords: Burns, Burn perfusion, Laser Doppler Imaging, Intermediate depth burns, Healing time
Faculty: Faculty of Health, Education, Medicine & Social Care
SWORD Depositor: Symplectic User
Depositing User: Symplectic User
Date Deposited: 10 Feb 2022 09:53
Last Modified: 16 Mar 2022 16:21
URI: https://arro.anglia.ac.uk/id/eprint/707323

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