west china medical publishers
Author
  • Title
  • Author
  • Keyword
  • Abstract
Advance search
Advance search

Search

find Author "WANG Dan" 22 results
  • Clinical Trial of Efficacy of Triple Therapy of Pantoprazo le in Treatment of Duodenal Ulcer

    Objective To investigate the efficacy of pantoprazole and omeprazole as part of triple therapy in treatment of duodenal ulcer. Methods Seventy-eight patients with duodenal ulcer and HP-positive were randomized to two groups. A random number table was used to generate random sequence. The sequence was not concealed. No blinding was used. Thirty-nine patients received pantoprazole 40 mg + amoxicillin 1.0 g + clarithromycin 0.5 g (PAC group) and 39 patients received omeprazole 20 mg + amoxicillin 1.0 g + clarithromycin 0.5 g (OAC group), twice daily with duration of 7 days. The follow-up time was 4 to 6 weeks. Results At the end of the treatment, 38 patients completed the study, and 1 patient lost to follow-up in the PAC group; thirty-seven patients completed the study, two patients lost to followup in the OAC group. The results of intention-to-treat analysis and per-protocol analysis showed that the HP eradication rates were 87.2%/89.5% in the PAC group and 87.2%/91.9% in the OAC group (P>0.05); the clinical improvement rates were 79.4%/81.6% in the PAC group and 82.0%/86.5% in the OAC group (P>0.05). The side effect rates were 10.6% in the PAC group and 8.1% in the OAC group (P>0.05). No significant difference was found between the two groups (P>0.05). Conclusions The PAC group is therapeutically effective for eradication of HP and improves symptoms and has an equivalent effect to OAC group for patients with HP-positive duodenal ulcer. Both drugs are well tolerated.

    Release date:2016-09-07 02:25 Export PDF Favorites Scan
  • BIOMECHANICAL ANALYSIS OF LATERAL MALLEOLAR’S ANATOMICAL HOOK-PLATE FOR FIXATION OFWEBER A-TYPE ANKLE FRACTURE

    To evaluate the biomechanical action of lateral malleolar’s anatomical hook-plate in treatingWeber A-type ankle fracture. Methods Forty-eight cadaveric specimens of adult’s inferior extremities from June 2005to October 2006 were observed, consisting of 26 males and 22 females and aged 18-55 years. The external malleolus of the specimens were transected by using a wire saw at the ankle joint level, and then were divided into 4 groups randomly (groups A, B, C and D). Four distinct internal fixation instruments were used: lateral malleolar’s anatomical hook-plate in group A, general screws in group B , 1/3 tubular plate in group C and standard tension band in group D. Each group was further divided into 2 subgroups, A1-D1 and A2-D2. A1-D1 groups underwent anti-pressure and A2-D2 groups underwent anti-torsion biomechanically comparative analysis. Results The peak values of anti-pressure experiments in groups A1-D1 were (799.83 ± 105.47), (699.17 ± 63.81), (598.83 ± 123.14) and (453.00 ± 111.67) N respectively, group A1 was significantly higher than groups B1, C1 and D1 (P lt; 0.01); meanwhile, the peak values of anti-torsion experiments in groups A2-D2 were (37.17 ± 1.81), (30.33 ± 2.22), (20.50 ± 2.92), (24.83 ± 3.47) Nm respectively, group A2 was significantly higher than groups B2, C2 and D2 (P lt; 0.01). Conclusion The lateral malleolar’s anatomical hook-plate represents a definite biomechanical superiority, when compared with other 3 internal fixation instruments in treating fracture of external mlleolus.

    Release date:2016-09-01 09:14 Export PDF Favorites Scan
  • 慢性阻塞性肺疾病前期的早期识别、预测与干预措施的研究进展

    Release date:2024-07-29 01:12 Export PDF Favorites Scan
  • Analysis of clinical pathogenic characteristics of children with co-infected pneumonia

    Objective To analyze the clinical pathogenic characteristics of children with co-infected pneumonia, and to provide reference for clinical diagnosis and treatment. Methods Children with co-infected pneumonia treated in the pediatrics department of the First Affiliated Hospital of Chengdu Medical College between June 2023 and May 2024 were selected. According to age, the children were divided into goups of infants, toddlers, preschoolers, school-aged children, and adolescents. The clinical pathogenic characteristics of children with pneumonia were analyzed. ResultsA total of 358 pediatric patients were included. Among them, there were 189 males (52.79%) and 169 females (47.21%); 71 (19.83%) were infants, 74 (20.67%) were toddlers, 113 (31.56%) were preschoolers, 75 (20.95%) were school-aged children, and 25 (6.98%) were adolescents. There was no statistically significant difference in the composition of males and females among different age groups or types of pneumonia (P>0.05). The bacteria detected were mainly Haemophilus influenzae, Staphylococcus aureus, Moraxella catarrhalis and Streptococcus pneumoniae. Viruses in the pathogen mainly included adenovirus, influenza A and B stream, human rhinovirus and respiratory syncytial virus. The main atypical pathogen detected was Mycoplasma pneumoniae (240 cases). Except for atypical pathogens (P>0.05), the detection rates of bacteria and viruses among different age groups showed statistically significant differences (P<0.05). The compositions of bacterial co-infections, viral co-infections, bacterial+viral infections, and co-infections involving atypical pathogens were compared among different age groups, and the difference was statistically significant (P<0.05). The proportions of different types of pathogens detected in winter were the highest. Conclusions Children with co-infected pneumonia are mainly aged 0-6 years old. The incidence of co-infected pneumonia in children is the highest in winter. Mycoplasma is the main pathogen in dual infections or co-infections. Co-infections in early childhood are mainly caused by bacterial infections, and the incidence of viral infections increases with age.

    Release date:2025-08-26 09:30 Export PDF Favorites Scan
  • The value of serum procalcitonin in differential diagnosis of invasive candidiasis: a meta analysis

    Objective To explore the value of procalcitonin (PCT) in differential diagnosis of invasive candidiasis. Methods PubMed, Embase, Medline, Cochrane Library, China National Knowledge Infrastructure and Wanfang Data were searched for articles published from the dates of establishment of databases to January 2021. A prospective and retrospective cohort studies and a case-control studies of PCT in differential diagnosis of invasive candidiasis were collected. RevMan 5.3 software QUADAS-2 risk assessment tool was used to evaluate the quality of the literature. Meta-Disc 1.4 software was used to determine whether the original data had threshold effect and heterogeneity. Stata 14.0 software was used to analyze meta, judge publication bias and draw Deeks diagram. Results A total of 9 articles and 943 patients were included. There were 259 cases in candida group and 684 cases in control group. The study showed that the total sensitivity was 0.86 [95% confidence interval (CI) (0.80, 0.91)], specificity was 0.78 [95%CI (0.70, 0.84)], positive likelihood ratio was 3.92 [95%CI (2.77, 5.55)], negative likelihood ratio was 0.18 [95%CI (0.12, 0.27)], the area under receiver operator characteristic curve was 0.90 [95%CI (0.87, 0.92)], diagnostic odds ratio was 19.75 [95%CI (10.71, 36.43)]. The results of heterogeneity test showed that there was heterogeneity caused by non-threshold effect between studies. The results of subgroup analysis showed that the heterogeneity I2 value of PCT<2 ng/mL subgroup decreased significantly, and the result was more stable, with sensitivity. The results show that sensitivity was 0.86 [95%CI (0.79, 0.91)], specificity was 0.72 [95%CI (0.63, 0.80)], the area under receiver operator characteristic curve was 0.87 [95%CI (0.83, 0.89)]. Conclusions Serum PCT in the differential diagnosis of invasive candidiasis has certain accuracy and negative predictive value. However, PCT is only an auxiliary test. The differential diagnosis of invasive candidiasis should be combined with clinical features and other diagnostic indexes.

    Release date:2022-08-24 01:25 Export PDF Favorites Scan
  • Survey on high incidence rate and molecular epidemiology of methicillin-resistant Staphylococcus aureus in general surgery of a hospital

    Objective To investigate the incidence rate, molecular epidemiology and risk factors for methicillin-resistant Staphylococcus aureus (MRSA) infection. Methods A total of 119 Staphylococcus aureus strains isolated from January 2016 to December 2020 in general surgery of this hospital were collected retrospectively and divided into MRSA group and methicillin-sensitive Staphylococcus aureus group according to whether or not resistant to oxacillin. The clinical data of all patients infected with Staphylococcus aureus and drug sensitivity of Staphylococcus aureus were collected. Molecular typing was performed by multilocus sequence typing (MLST), resistance gene, virulence gene and biofilm gene were detected by polymerase chain reaction (PCR) method, and a case-control study was used to identify risk factors for MRSA infection. ResultsThe detection rate of MRSA was 57.98% (69/119), mainly was from pus specimens (80.67%, 96/119). The results of MLST showed that the dominant clone types were ST88 (37.68%, 26/69), ST951 (27.54%, 19/69) and ST59 (18.84%, 13/69). The results of PCR showed that the detection rates of mecA, mecC, Aac (6′ )/Aph (2′ ′ ), Aph (3)-Ⅲ, ant (4′ )- Ⅰ a, tetM, qnrA, panton-valentine leukocidin, fibronectin-binding protein A, staphylococcal enterotoxin A, staphylococcal enterotoxin B, α-hemolysins, intracellular adhesion A, staphylococcal accessory regulators A, and fibronectin-binding protein B in 69 strains of MRSA were 100%, 0.00%, 27.54%, 34.78%, 18.84%, 14.49%, 1.45%, 8.70%, 98.55%, 11.59%, 91.30%, 94.20%, 92.75%, 97.10% and 86.96%, respectively. Multivariate analysis showed that hospital transfer, wound infection, catheter related infection, drainage tube and history of cephalosporin using were risk factors for MRSA infection. ConclusionsThe detection rate of MRSA in general surgery of this hospital is high. ST88 is the most common clone type. The carrying rates of resistant-, virulence- and biofilm-related genes are high. Hospital transfer, wound infection, drainage tube, history of cephalosporin using etc. are high risk factors for MRSA infection. It is advised that invasive operation should be reduced, antibiotics should be used rationally, hand hygiene should be paid attention to, environmental sanitation disinfection should be carried out regularly, and the monitoring of MRSA bacteria should be strengthened, so as to reduce and control the infection and spread of MRSA.

    Release date:2022-08-29 02:50 Export PDF Favorites Scan
  • The Role of Hydrogen Sulfide in Prophase of Acute Peritoneal Cavity Infection of Rat

    Objective To study the role of hydrogen sulfide (H2S) in prophase of acute peritoneal cavity infection. Methods NaHS was taken as a donor of H2S. Seventy-two Sprague-Dawley rats were divided into 4 groups randomly:control group, cecal ligation and puncture (CLP) and treated with natural saline group,CLP and treated with NAHS group, and CLP and treated with DL-propargylglycine (PAG, an inhibitor of H2S formation) group. Selected 6 rats at 2h, 6h, and 12h after treatment in each group. The contents of TNF-αand H2S in serum and the content of MPO in intestinal tissue were measured, respectively. The histopathological change of ileum tissues were observed at 6 h after treatment in each group. Results The H2S could alleviate CLP-induced inflammation obviously, decrease the content of TNF-α in serum when inflammation,and attenuate the infiltration of neutrophilic granulocyte in small intestine. Conclusion The H2S has anti-inflammation effect in prophase of acute peritoneal cavity infection.

    Release date:2016-09-08 10:36 Export PDF Favorites Scan
  • Investigation analysis of current status of adult cleft lip and palate patients and social perception of cleft lip and palate in the Chinese Mainland

    Objective To investigate the basic status of adult cleft lip and palate patients and the social perception of different populations towards cleft lip and palate diseases in the Chinese Mainland, and provide a scientific basis for further improving the public awareness of cleft lip and palate diseases. Methods A questionnaire survey on basic demographic information was conducted among cleft lip and palate patients who were aged 18 or above and received diagnosis and treatment in the Department of Cleft Lip and Palate Surgery, West China Hospital of Stomatology, Sichuan University between January 2022 and October 2023. Simultaneously, another questionnaire survey was conducted among cleft lip and palate specialists, genetic and prenatal counsellors, ultrasound staff, general medical staff, families of cleft lip and palate patients, and the general population, to investigate their level of knowledge regarding prenatal diagnosis, treatment, and prognosis of cleft lip and palate, as well as their corresponding decision-making choices. Results A total of 489 copies of questionnaire were distributed to patients with cleft lip and palate who were 18 years old or above, and 440 valid copies were collected, with an effective response rate of 90.0%. Among the 440 patients, 90.0% were aged 18-30 years, 57.7% were males, 65.7% were residing within Sichuan Province, 53.8% had an associate degree, bachelor’s degree or above, 71.6% had no fixed occupation, 75.0% had siblings, and 86.8% had a monthly family income of ≤10000 yuan. In terms of the questionnaire on social perception of cleft lip and palate among different populations, a total of 1513 copies of questionnaire were collected, among which 1437 were valid copies, with an effective response rate of 95.0%. There was no statistically significant difference (P>0.05) in the understanding and perception among different populations regarding the questions “Does cleft lip and palate affect the quality of life and future development of affected children?” or “Do you think families of children with cleft lip and palate experience significant pressure?”, while there were statistically significant differences (P<0.05) in the understanding and perception of the remaining eight questions. Conclusions People with cleft lip and palate have certain difficulties in employment and need more attention and help from the society. There are differences in social perception related to cleft lip and palate among different groups of people.

    Release date:2025-01-23 08:44 Export PDF Favorites Scan
  • IN VITRO QUANTUM DOT-LABELED RAT BONE MARROW MESENCHYMAL STEM CELLS

    Objective To explore the cytotoxicity, labeled time, marking rate, and effect on adhesion of quantum dot 655 (QD655) labeled rat bone marrow mesenchymal stem cells (BMSCs) in vitro, and to confirm its feasibil ity for stem cell label ing and tracer means for rat. Methods BMSCs were collected from the femur and tibia bone marrow cavity of a 2-week-old SD rat, cultured and identified. The 3rd passage of BMSCs were incubated with QD655 as the experimental groupaccording to the recommended concentration of the markers. The cells were not labeled by QD655 as control group. Thecell survival rate after QD655 label ing was detected by trypan-blue exclusion. The effect of QD655 on cell prol iferation was observed by MTT. The osteogenic differentiation potential was identified by Al izarin red staining, alkal ine phosphatase (ALP) staining, and real-time fluorogenic quantitative PCR. At immediately, 1, 2, 4, and 6 weeks, fluorescent microscopy was used to observe the labeled rate and scanning electron microscope was used to observe the cell adhesion to scaffold (bioglass/collagen composite). Results The cell survival rates were more than 90% in both experimental group and control group, showing no significant difference (P gt; 0.05). There was no significant difference in the cell prol iferation between 2 groups (P gt; 0.05). Al izarin red staining and ALP staining showed positive results. Real-time fluorogenic quantitative PCR result showed that the mRNA expression levels of osteopontin, osteocalcin, collagen type I, ALP, and BMP-2 in the experimental group was significantly higher than those in the control group. The labeled rates were 96.50% ± 1.59%, 93.30% ± 1.51%, 72.40% ± 2.90%, 40.10% ± 3.60%, and 10.00% ± 1.70% immediately, 1, 2, 4, and 6 weeks after label ing, respectively. The labeled rate in the control group was 0. Scanning electron microscope showed a good distribution of fusiform or polygonal cells in the pores of scaffold. Conclusion QD655 can be used as a label ing marker for BMSCs. Rat BMSCs labeled with QD655 is of high efficiency and safety.

    Release date:2016-08-31 05:48 Export PDF Favorites Scan
  • The concept, connotation and research progress of whole life cycle health service

    China is in the best period of development since modern times, and in the face of the “great changes” in the world, China’s medical and health field needs to reconstruct the medical service model actively. Under the guidance of the “Healthy China” strategy in the new era of socialism with Chinese characteristics, full life cycle health service emerged as the times require. The whole life cycle health service is based on the two focuses of the whole population and the whole life cycle, with the main characteristics of “system continuity” and “fair accessibility”, aiming to achieve the overall improvement of the health level of the whole people. This article reviews the concept, connotation and research progress of whole life cycle health service, aiming to implement the strategy of “Healthy China”, so as to provide reference for carrying out the whole life cycle health service with Chinese characteristics in the new era.

    Release date:2023-01-16 09:48 Export PDF Favorites Scan
3 pages Previous 1 2 3 Next

Format

Content