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Objective To explore the clinical application and experience of methylene blue tissue staining technique to guide surgical debridement. Methods The data of 39 patients with body surface wounds admitted to our department from January 2020 to January 2023 were reviewed. Methylene blue tissue staining technique was applied to guide surgical debridement, methylene blue was applied to open wounds, or methylene blue was injected into the sinus with a syringe, and the debridement and sinus resection were performed under direct vision. After debridement, skin flap was used to repair the wound. The skin flap color, exudate character and incision healing were observed 1-2 weeks after operation. Results A total of 39 patients, 2 cases of the suture part of the skin flap edge scab and blister formation, the rest of the skin flap without redness and swelling, no fluid accumulation under the flap, suture healing about two weeks after surgery. One month after discharge and three months after follow-up telephone survey, the patient's operative area healed stable. Conclusion The debridement guided by methylene blue staining can make the visual field more intuitive, improve the debridement efficiency and the first-stage wound healing rate, and the clinical effect is worthy of recognition. [ABSTRACT FROM AUTHOR]

Objective To investigate the clinical application of vertical incision internal pedicle in mastectomy for hypertrophy. Methods From March 2020 to March 2023, 45 cases of breast hypertrophy were corrected by vertical incision, and the new nipple position, the new areola diameter and the width of the inner and upper dermal gland pedicle were individually designed. The inner and upper pedicle were de-epidermis, the skin and subcutaneous tissue in the "C" shaped area were excised, and the deep tissue of the outer and upper skin coverings were personalized with the safe skin mask thickness of 2.0 cm retained. Proper pedicle trimming was conducive to rotation and shaping, the old and new lower fold areas were thinned, and the cosmetic suture technique was applied to reshape the breast shape. Results A total of 45 cases (90 breasts), the degree of elevation was 3.0 to 15.5 cm, the weight of the removed unilateral glands was 380 to 2300 g, 5 cases suffered from fat liquefaction and poor incision healing after surgery, healing after dressing change, good blood flow to the nipple and areola, 3 to 12 months after the operation, physical discomfort symptoms improved significantly, nipple feeling good. Patients were satisfied with breast size, shape and scar status after surgery. Conclusion The application of vertical incision in the upper pedicle method to correct hypertrophy and ptosis of the breast, with safe blood supply to the pedicle, personalized operation, full removal of redundant tissue, hidden postoperative scar, full and symmetrical breast appearance, can achieve desired satisfactory results for some mild, all moderate and most severe patients with breast hypertrophy and ptosis. [ABSTRACT FROM AUTHOR]