OBJECTIVE: To investigate the pathology characteristics of congenital preauricular fistula with infection, in order to reduce the recurrence rate after surgery and improve operative technique. METHOD: Twenty-five patients diagnosed as congenital preauricular fistula with infection were analyzed. There were 14 patients in infection history group, 9 in infective stage group, and 2 in recurrence group respectively. The whole piece of fistula and scar tissue was completely excised during operation. The specimens were observed by naked eye and serial tissue sections were analyzed. RESULT: (1) Macroscopically, in infection history group, initial morphology can be maintained near the fistula orifice, but the distal tissue was dark red scar tissue. In infective stage group, the distal tissue of the specimens was granulation tissue and cicatricial tissue. The granulation tissue was crisp and bright red. In recurrence group, multicystic lesions with severe edema was observed, with a classical dumb-bell appearence. (2) Microscopically, in infection history group and recurrence group, we can see that the distal fistula tissue was discontinuous and was separated by scar tissue. In infective stage group, we can find neo-angiogenesis and infiltration of plasma cells, lymphocytes, neutrophil between interrupted fistula tissues. (3) All patients were followed up for 6-12 month, without recurrence. CONCLUSION The fistula tissue of congenital preauricular fistula with infection was divided by the scar tissue, and they did not communicate with each other. Complete delineation of fistula is hardly achieved by methylene blue staining. Radical excision of the fistula and scar tissue may help to avoid leaving viable squamous epithelial remnants and reduce the recurrence rate.
Adolescent ; Adult ; Child ; Craniofacial Abnormalities ; pathology ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Young Adult

Objective To compare the replacement time of normal and anti-reflux disposable drainage bag for the risk of infection in patients with biliary T-tube drainage, and to explore the most suitable frequency which patients can get the most benefits.Methods Totals of 144 patients with routine T-tube drainage and the negative culture results of biliary bile were randomly divided into three groups by random number table method. Group A and group B used ordinary disposable drainage bag, while group A changed it every day and group B changed it once a week.Group C used the disposable anti-reflux drainage bag and replaced it once a week.The extraction of bile from drainage bag was used to do the bacteriological monitoring and the results were compared among the three groups.Results There was no significant difference in the bacterial culture among the three groups at the 5th day and 10th day after the drainage (χ2 =0.51, 1.64, respectively;P >0.05).The replacement frequency of the three groups were statistically significant (F=1 379.17,P<0.01).The cost of changing drainage bag in three groups had statistically significant difference ( F =229.19, P <0.01 ). Conclusions Patients with biliary T-tube, who use the ordinary disposable bags and change it weekly have similar infection rate as the anti-reflux drainage bag, what’ s more, it can reduce the costs of patients and the workload of nurses.

Objective:To review the scope of related factors that affect the elderly′s participation in digital health intervention, and to provide a certain reference for the application and development of smart elderly technology.Methods:Based on the scope review guidelines issued by the Joanna Briggs Institute in Australia in 2019, the inclusion and exclusion criteria were determined according to the PCCS principles. Chinese and English literatures were searched in PubMed, Cochrane Library, JBI, CINAHL, Web of Science, Scopus, CNKI, Wanfang database and Chinese biomedical literature database. The search time limit was from the establishment of the database to November 30, 2021. Two researchers independently read, and used EndNoteX9 and Excel tables to extract relevant data from the literature for summary and analysis.Results:Totally 20 articles were selected, including 2 mixed studies, 10 cross-sectional studies, 6 qualitative studies, and 2 quasi-experimental studies. Relevant factors affecting the participation of the elderly in digital health interventions involved the developers, users and the user himself of digital health intervention systems, including the degree of system integration of system development, the degree of autonomy of the elderly, the credibility and accessibility of system equipment and ease of use; the degree of compatibility of equipment in the process of use, the degree of digital infrastructure configuration, the degree of Internet penetration, the availability and reliability of health information resources, the degree of training and education, the degree of communication with the elderly in the process of participation, financial payment, etc.; the four inherent factors of the elderly included the cost of technology use, technical anxiety, privacy and safety, and health needs.Conclusions:The elderly, medical staff, developers and other stakeholders should jointly participate in decision-making on the development and management of the digital health intervention system for the elderly, especially by inviting and empowering the elderly , and improve the training and feedback of the system application and use process, accelerate the popularization and promotion of technical resources, and increase social capital and financial payment incentives to reduce the burden on the elderly and the medical system.