OBJECTIVE To explore optimal change dressing of the incision of trachea.METHODS Seventy-eight patients were randomly and equally divided into the traditional group and test group.In traditional group,after dressings change with conventional disinfection,the sterile gauze was cut into "E" shape and overlapping covered on the incision of trachea around the trachea cannula from top to bottom and fixed with adhensive plaster.In test group,after dressings change with conventional disinfection,the special sterile drainage was fixed and smoothed around the trachea cannula from left to right(or from right to left).RESULTS In test group,skin incision colonies of patients were significantly lower than that in traditional group(P

Objective: To introduce the method of making mesh elastic gloves, and to explore its application effect in the treatment of zinc oxide paste in patients with subacute eczema in the hands. Methods: This study was a kind of experimental study. A total of 96 patients with subacute eczema in the hands in the Dermatology Ward of the First Affiliated Hospital of Yangtze University were selected as the study subjects.They were divided into the control group (admitted from June to December in 2017) and the experimental group (admitted from June to December in 2018) according to the time of admission, 48 cases in each group. After the two procedures(apply medicine and cover with sterile gauze) of the conventional zinc oxide paste coating, the control group was fixed with "gauze bandage+ medical tape", and the experimental group was fixed with "mesh elastic gloves". The external fixed cost and time, the disassembly time, the dressing fixation, the comfort condition, the grip strength, the daily activity of the hand, and the healing effect of the skin lesions were evaluated. Results: The external fixed cost and time, the disassembly time, grip strength and hand daily activities ability of the patients in the experimental group were (0.37±0.05) yuan, (26.06±2.53) s, (13.70±1.28) s, (25.96±5.83) kg, and (65.04±7.10) points, significantly better than the control group (1.63±0.21) yuan, (160.98±22.82) s, (22.36±3.50) s, (20.01±3.56) kg, (61.83±6.31) points, the difference between the two groups was statistically significant (t value was-40.931--2.340, P< 0.01 or 0.05). The total rate of comfort, the total rate of dressing loss and the total effective rate of skin lesion healing in the experimental group were respectively 100%(48/48), 0, 98% (47/48), significantly better than the control group 79% (38/48), 46% (22/48), 71% (34/48), the difference between the two groups were statistically significant (χ² value was 11.163, 28.541, 13.353, all P<0.01). Conclusions The application of mesh elastic gloves in the treatment of zinc oxide paste in patients with subacute eczema in the hands can not only save the cost of external fixation and the time of external fixation and disassembly, but also improve dressing fixation and comfort, and improve grip and hand daily activities. At the same time, the healing effect of hand skin lesions can also be improved. In short, it meets the needs of dermatology hand coating.

OBJECTIVE To analyze the odor composition changes of two kinds of traditional Chinese medicine sachet （children type and adults type） with different placement time by using ultra-fast gasphase electronic nose technology. METHODS The change rule of sachet components at different storage times was analyzed by gas chromatography. At the same time， the qualitative results were obtained by combining electronic nose with Arochembase database. Discriminant factor analysis was used to analyze the overall odor composition differences of the two sachet samples. RESULTS A total of 10 odor compositions were identified in children-type sachet， including α-pinene and β-pinene as the functional index compositions； five odor compositions of children-type sachet disappeared after 0.25 days， and most of them disappeared after 7 days； the cumulative contribution rate of discriminant factor analysis was 99.225%. A total of 8 odor compositions were identified in adult-type sachets， including α-pinene and α-phellandrene as the functional index compositions； four odor components disappeared after the adult-type sachet was placed for 0.25 days； after 15 days of placement， the peak 6-8 disappeared， and the intensity of peak 5 decreased by 34.3% compared with 0 day of placement； the cumulative contribution rate of discriminant factor analysis was 91.965%. CONCLUSIONS With the extension of storage time， the smell and composition of the two traditional Chinese medicine sachets are decreasing. It is recommended that the use time of children-type sachet is 7 days， and that of adult-type sachet is 15 days.