Tinnitus is a common clinical symptom. Researches have shown that fractal sound can effectively treat tinnitus. But current fractal sound is usually synthesized based on constant notes via fractal algorithm, which lead to monotony of synthesized fractal sound. So it is difficult to achieve personalized match. Clinical datas have confirmed that it is common to match tinnitus sound with nature sound and it has a good effect on regulating negative emotion and relieving tinnitus via some natural sound. Therefore, a new method of personalized synthesizing tinnitus rehabilitation sound based on iterative function system (IFS) fractal algorithm is proposed in this paper. This method firstly generates personalized audio library based on natural sound, then tinnitus rehabilitation sound is synthesized via IFS fractal algorithm. Simulation results show that rehabilitation sound in this paper can meet the basic requirements of tinnitus therapy sound and can match tinnitus sound by controlling personalized audio library. So it has reference significance to the treatment of tinnitus sound therapy.
ObjectiveTo detect expressions of E-cadherin (E-cad) and vascular endothelial growth factor (VEGF) in gastrointestinal stromal tumor (GIST) tissues and analyze their relationships with clinicopathologic features of patients with GIST.MethodsForty paraffin-embeded specimens of surgical resected GIST from January 2015 to March 2018 in the Pathology Department of Yuhuangding Hospital Affilicated to Qingdao University were retrieved. The expressions of E-cad and VEGF proteins were detected by the immunohistochemical method.ResultsThe positive expression rates of E-cad and VEGF proteins in the GIST tissues were 10.0% (4/40) and 50.0% (20/40), respectively. The positive expression rates of E-cad and VEGF proteins were associated with the tumor diameter, mitotic counts, and risk classification (P<0.05). The positive expression rate of the E-cad was negatively related to that of the VEGF in the GIST tissues (rs=–0.55, P=0.001).ConclusionFrom results of this study, VEGF and E-cad might be related with malignancy of GIST, which might be potential facators in predicting prognosis of GIST.
ObjectiveTo evaluate the application of dexmedetomidine for moderate sedation in patients undergoing endoscopic ultrasonography.MethodsPatients who were planned to undergo endoscopic ultrasonography in West China Hospital of Sichuan University from February to June 2019 were randomly divided into dexmedetomidine group (trial group) and propofol group (control group). The basic conditions, success rate of endoscopic ultrasound diagnosis and treatment, sedation-related adverse events, implementation of airway management, postoperative comfort evaluation and endoscopic physician satisfaction score of the two groups were compared.ResultsA total of 120 patients were eventually enrolled, 60 in each group. There was no significant difference in the basic conditions of the two groups (P>0.05). The success rate of endoscopic ultrasound diagnosis and treatment in two groups were 100%. There was no significant difference in the incidence of bucking, apnea and bradycardia between the two groups (P>0.05). The incidence of hypotension (15.0% vs. 31.7%), hypoxemia (6.7% vs.20.0%) in the trial group was lower than those in the control group, the differences were statistically significant (P<0.05). The proportion of patients in the trial group who performed airway management was lower than that in the control group (1.7% vs. 28.3%), and the difference was statistically significant (P<0.05). There was no significant difference in postoperative pain score, the first time to get out of bed and postoperative 15-item quality of recovery questionnaire score between the two groups (P>0.05). The incidence of nausea and vomiting at 6 hours after operation (48.3% vs. 3.3%) and 24 hours after operation (10.0% vs. 0.0%) and the time required for recovery of gastrointestinal function ［(201.4±178.4) vs. (148.5±75.7) min］ in the trial group were higher than those in the control group (P<0.05). The median (the lower and upper quartile) of comfort score of patients and satisfaction score of endoscopic physicians were 8 (6, 10) and 8 (7, 9) in the trial group, respectively, and were 10 (9, 10) and 9 (8, 10) in the control group, with statistically significant differences (P<0.05).ConclusionModerate sedation with dexmedetomidine could provide good sedative and analgesic effects in endoscopic ultrasonography. It has little effect on respiration and blood pressure, but the incidence of postoperative nausea and vomiting were higher than deep sedation with propofol. And patient comfort and endoscopic physician satisfaction also need to be improved.
Objective To survey the current status of residents’ health examination in township medical units in Shuangliu county, so as to provide references for exploring the residents’ health examination mode suitable for the well-off rural hospitals, and for improving the effects of physical examination. Methods The self-designed questionnaires were made to survey the current situation of health examination for the residents in 24 township medical units in Shuangliu County, including 3 central township hospitals, 3 community health centers and 18 general township hospitals; and the outline was designed to interview the people responsible for managing and implementing the resident’s examination work. The Epidate 3.1 was used for data input, the SPSS 17.0 was used for descriptive statistics and stratified analysis, and the classification method was adopted for qualitative research of personal interview data. Results The number of primary health care units for carrying out residents’ health examination got gradually increased year by year from 2008 to 2010; and all 24 township-level medical units had already carried out that examination by 2010. But some issues still existed such as lower participation rate and ineffective utilization of the archives. Conclusion a) It is necessary to prepare well, enhance organizing, expand publicity, and increase participation rate when primary health care units carry out the health examination for residents; b) It is necessary requires to fasten the informatization construction of health archives, and to quicken the process and analysis of examination information; and c) It is advisable to constantly optimize the examination items according to exam information, to improve the qualification of medical staffs, and to fasten the construction of exam team.
Objective To survey the drug distribution status in 24 township medical units in Shuangliu county, so as to provide references to explore the drug distribution mode for well-off township hospital. Methods An outline was made to interview the relevant workers who were in charge of the rural drug distribution management in all levels of the food and drug supervision bureaus of Sichuan province, Chengdu city or Shuangliu county, the township hospitals, the village clinics, and the drug distribution enterprises. At the same time, a self-designed questionnaire was distributed to 24 county township medical units (ie, three central township hospitals, three community health centers, and 18 general township hospitals). The Epidate3.1 was used for data-inputting, and the SPSS 17.0 was used for descriptive statistics and stratified analyses. Results At present, there was only one enterprise taking responsibility of the rural drug distribution in Shuangliu county since the strategy of enterprise direct-distribution under “two nets” supervision starting iShuangliu county of Sichuan province; Township medical units; Drug distribution; Status surveyn 2003, and there was no obvious difference in distribution before and after that strategy. The general satisfaction of 24 county township medical units with the distribution enterprise was only 50%, and the satisfaction with the price and the number of drug distribution was the lowest, accounting for 37.5% and 33.3%, respectively. Conclusion The enterprise direct-distribution under the “two nets” supervision for rural drug distribution makes the drug distribution market regular and gets good social effect, but there are still the same problems such as lack of marketization, low transparency, and high drug price, so it is necessary to introduce a new competition and management mechanism to promote the new breakthrough in rural drug distribution.