Objective To investigate the clinical effect of facial dermabrasion by microcrystal combined with red blue light in the treatment of acne pitting scar.Methods Selected from June 2013 to April 2016 hospital dermatology outpatients,98 cases of facial acne pitting scar were retrospectively analyzed,in which 50 cases of patients with facial acne dermabrasion were treated with red and blue light treatment (combined group),48 patients only choose facial acne dermabrasion treatment (control group),then treatment effect was compared between the two groups.Results At 3 months after operation,the ECCA score and mean sag depth of the two groups were significantly lower than those of the preoperative (t=23.208 and 18.586,P＜0.001).The ECCA score of the combined group was significantly lower than that of the control group (t=7.039,P＜0.05);The healing rate was 80％,which was significantly higher than those in the control group (56.25％) (x2 =6.387,P＜0.05);after 1 months and 3 months;the subjective satisfaction scores of the patients in the combined group were significantly higher than those in the control group (t=3.318 and 3.776,P＜0.05);Patients in the combined group were significantly earlier than the control group (t =4.419,P＜0.05);the incidence of edema and erythema was significantly lower in the combined group than in the control group (x2 =5.096,P＜0.05).Conclusions Facial acne dermabrasion by microcrystal combined with red and blue light treatment is superior to the single use of dermabrasion.

Objective:To explore the effect of "Internet +" combined with multidisciplinary out of hospital management in hospital-home transitional period management of patients after lumbar internal fixation.Methods:From October 2021 to September 2022, convenience sampling was used to select 176 patients who underwent lumbar internal fixation at the Department of Orthopedics of the First Affiliated Hospital of Zhengzhou University. According to the admission time, patients enrolled from October 2021 to March 2022 were included in the control group, and patients enrolled from April to September 2022 were included in the observation group, with 88 cases in each group. The control group implemented routine out of hospital follow-up management, while the observation group implemented "Internet +" combined with multidisciplinary out of hospital management. After three months of intervention, the recovery of lumbar and back function [Oswestry Disability Index (ODI) and Macnab score], surgical efficacy (NaKa grading), nursing satisfaction, and readmission rate were compared between the two groups.Results:After three months, the ODI score of the observation group was lower than that of the control group, and the Macnab score was higher than that of the control group, the NaKa grading was better than that of the control group, with statistically significant differences ( P<0.05). In the observation group and control group, the total effective rate of surgery, nursing satisfaction, and readmission rate were 88.64% (78/88) vs. 67.05% (59/88), 94.32% (83/88) vs. 78.41% (69/88), 4.55% (4/88) vs. 17.05% (15/88), respectively. The total effective rate and nursing satisfaction of the observation group were higher than those of the control group, and the readmission rate was lower than that of the control group, with statistical differences ( P<0.05) . Conclusions:"Internet +" combined with multidisciplinary out of hospital management can effectively improve the recovery of lumbar function in hospital-home transitional period management of patients after lumbar internal fixation, enhance the surgical efficacy and nursing satisfaction, and reduce the readmission rate.