Functional and cosmetic reconstruction of palmar heat press injury following wound bed preparation combined with artificial highly concentrated carbon dioxide bathing: A case report.

Background: The effect of artificial highly concentrated carbon dioxide bathing on heat-press-injured wounds has been clinically observed. Case presentation: A 46-year-old male patient with a heat press injury of the right palmar region achieved complete necrotic tissue removal and sufficient granulation of the skin graft by continuous hand bathing in a solution containing highly concentrated carbon dioxide for four weeks. The patient successfully underwent a full-thickness skin graft from the plantar to the palmar region, and his right hand function improved to the extent that it did not interfere with daily life. Conclusions: Heat press injuries are often refractory to treatment owing to the synergistic effects of heat and crush injuries. Highly concentrated carbon dioxide bathing has long been known to increase skin and muscle blood flow, and its clinical applications in ischemic limbs, skin ulcers, and osteomyelitis have already been reported. In this case, the results suggest an effect of improved blood flow leading to maturation of the graft bed at the heat-press injury site. Lay Summary: Highly concentrated carbon dioxide bathing is not only clinically applicable to ischemic extremities, skin ulcers, and osteomyelitis, due to increased cutaneous and muscular blood flow, but also to the reliable debridement of heat press injury wounds and the granulation of graft beds. We successfully used this novel combination of procedures to establish a graft bed with a good blood flow despite the deep heat press injury occurring in the palmar region, leading to an excellent functional recovery. The cost per procedure is low, at about $1(USD), making it a wound care option that should be considered from a healthcare economic perspective.