Comprehensive treatment of deep frostbite of multiple fingers after trauma: A case report

Figure 1 Changes in frostbite during one week in hospital. A and B: On day 1, after 24 h of rewarming, there was noticeable swelling in the fingers accompanied by the presence of large blisters or blood blisters, but no reported pain; C: On day 4, there was a scab on the tips of the right fourth and fifth fingers, and the skin on the index finger was red where it was broken; D: On day 5, new tissue growth was observed at the site of broken skin on the index finger.

Figure 2 Frostbite changes from one week after hospitalization to discharge. A: On day 8, the skin on the right third, fourth, and fifth fingers wrinkled and shrank, and the area covered by scabs rapidly expanded; B: On day 9, new tissue formed. It created a scab on the tip of the index finger, which eventually fell off after drying; C: On day 12, there was a hard black scab on the back of the left hand and a slightly softer, dark red scab on the palm; D: On day 16, when the patient was discharged, the tips of his right finger were covered in hard, black scabs.

Figure 3 Progression of frostbite outcomes. A: The nails on the fourth and fifth fingers of the left hand fell off, and the nail on the index finger was about to fall off; B: On day 22, the injury to the patient's right index finger completely healed; C: On day 67, after hyperbaric oxygen therapy, the tips of the right third, fourth, and fifth fingers had dried and shrunk; D: Six months after the injury, the patient's right fourth and fifth fingers were amputated, and the third finger was about to fall off.