PMC8226253_01
(A) Mechanism of the electric arc injury from the 20 kV medium-voltage switchgear at inspection. (B) Light-arc and electric discharge-induced damage marks in the switchgear. (C,D) Lichtenberg figures on the right flank. (E,F) Second-degree dermal burns involving right arm, lower back and buttocks. (G,H) Burn wounds on right arm, lower back and buttocks after 3 days. Lichtenberg figures not present.
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F1
He directed his hand towards one of the 20 kV outgoing units and was "struck" by electricity from electrical arcing (Figure 1A). There were signs of damage inside the bay unit with the earthing circuit connector indicating that earthing of electric current occurred at least partially, over a very short distance, when the patient's hand or the combination wrench initiated the electrical arc (Figures 1A,B). He had a second-degree dermal burn covering 7% of total body surface area involving his right elbow, arm, lower back, and buttocks (Figures 1C-F). In addition, several non-blanching red marks consistent with LFs were observed over his right flank (Figures 1C-F). Health Care AB, Gothenburg, Sweden) and were redressed every 3-5 days. The LFs disappeared completely within 24 h (Figures 1G,H showing status after 3 days) and the burns healed within 3 weeks. He returned to work 6 weeks after injury.
(A) Heatmap clustering of differentially expressed proteins in three consecutive tissue sections of 3 month follow-up control (c1-3) and injured (i1-3) biopsy samples. (B) Lactoferrin (LTF)-associated activated and inhibited pathways and identified differentially expressed proteins (DEPs) associated to each. (C) Top 3 predicted upregulated pathways and their associated DEPs. (D) Top 3 predicted inhibited pathways and their associated DEPs. Differentially expressed proteins and associated signalling pathways were analysed using Ingenuity Pathway Analysis (IPA).
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F3
Health Care AB, Gothenburg, Sweden) and were redressed every 3-5 days. The LFs disappeared completely within 24 h (Figures 1G,H showing status after 3 days) and the burns healed within 3 weeks. He returned to work 6 weeks after injury.