| Literature DB >> 33126858 |
Austin Baird1, Maria Serio-Melvin2, Matthew Hackett3, Marcia Clover4, Matthew McDaniel4, Michael Rowland2, Alicia Williams2, Bradly Wilson4.
Abstract
BACKGROUND: Applied Research Associates (ARA) and the United States Army Institute of Surgical Research (USAISR) have been developing a tablet-based simulation environment for burn wound assessment and burn shock resuscitation. This application aims to supplement the current gold standard in burn care education, the Advanced Burn Life Support (ABLS) curriculum.Entities:
Keywords: Android; Burn; Escharotomy; Military; Simulation; TBSA; Tablet; Training; Treatment
Mesh:
Year: 2020 PMID: 33126858 PMCID: PMC7602345 DOI: 10.1186/s12873-020-00378-z
Source DB: PubMed Journal: BMC Emerg Med ISSN: 1471-227X
Fig. 1Results of TBSA estimation provided by USISR SMEs. Error is computed as the difference between the generated burn surface area in the game and the reported TBSA by the SMEs. Bars around the data indicates one standard deviation from the mean. The blue diamonds on the reported TBSA is the computer generated burn surface area. Data is reported as a mean (and standard deviation) of 10 random virtual patient trails where SMEs reported TBSA on each generated patient
Fig. 2A burn care clinician finishes properly documenting the virtual Lund-Browder chart, effectively mapping the patients partial and full thickness burns. This task was completed by 9 care providers to provide data to support the visual fidelity of the models used in the game
Fig. 3Tablet controls limit the number of buttons available to the user while playing BurnCare. To overcome this obstacle, time was spent configuring the screen, camera and interact able icons to improve the user experience
Fig. 4Process flow of the BioGears inflammatory model in response to thermal injury. A TBSA input initiates the inflammatory cytokine kinetic model and generates a pain signal. The pain signal upregulates epinephrine production, which increases respiration rate and acts upon the BioGears cardiovascular model. The interaction of the pro- and anti-inflammatory compounds effects the integrity of the tissue (D) and produce the vasodilator nitric oxide (NO). The effects of tissue damage are modeled by reducing hydraulic resistance and increasing solute permeability on the connecting the vascular and interstitial regions of the BioGears cardiovascular circuit. These changes favor fluid loss to the interstitium, resulting in decreased blood volume and blood pressure. The baroreceptor and glomerular feedback models work to preserve blood pressure by increasing heart rate and systemic resistance and decreasing urine output
Data generated by health care providers on a randomized list of 9 patients. Reported denotes the value of 2nd and 3rd degree burn TBSA, using the Lund-Browder chart, the provider mapped from the generated virtual burn patient. Generated denotes the exact surface area that the burn texture was applied to the virtual patient
| Picture ID | Reported 2nd | Generated 2nd | Reported 3rd | Generated 3rd | Reported Total | Generated Total |
|---|---|---|---|---|---|---|
| 13.5 | 11.5 | 31 | 33.5 | 44.5 | 45 | |
| 17 | 8.5 | 25.5 | 25 | 42.5 | 33.5 | |
| 15 | 11.5 | 37 | 33.5 | 52 | 45 | |
| 3 | 3.5 | 5 | 4.5 | 8 | 8 | |
| 10.5 | 7.5 | 13.5 | 11 | 24 | 18.5 | |
| 17.5 | 12.5 | 11 | 13.5 | 28.5 | 26 | |
| 14.5 | 8.5 | 29.5 | 25 | 44 | 33.5 | |
| 9.5 | 7.5 | 12.5 | 11 | 22 | 18.5 | |
| 13.5 | 8.5 | 16 | 25 | 29.5 | 33.5 |
Statistics reported to test the visual fidelity of the application. Strong results show that SME users are able to determine burn wounds at a much lower error rate than an average population sample. 2nd degree burns show less strong correlation to support this hypothesis
| Burn | Mean (%) | Standard Deviation | t-statistic | |
|---|---|---|---|---|
| 2nd Degree | 3.8 | 2.5 | −1.4 | 0.098 |
| 3rd Degree | −0.1 | 3.9 | −3.96 | 0.0021 |
| Total | 3.7 | 4.5 | −4.2 | 0.0014 |
Fig. 5The BioGears response to burns of 10% (black), 25% (blue), and 40% (red) TBSA. Hypotension secondary to volume depletion is opposed by the baroreflex, which increases heart rate and systemic vascular resistance to maintain pressure. This reflex becomes overwhelmed following large burns and leads to irreversible hypovolemia if untreated (red)