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find Author "YANG Yan" 14 results
  • Summary on magnetic resonance imaging, and pathological and clinical characteristics of 26 multiple sclerosis patients with new lesion in medulla oblongata

    ObjectiveTo evaluate the magnetic resonance imaging (MRI) manifestations, pathological and clinical characteristics, and treatment outcomes of multiple sclerosis (MS) patients with new lesion in medulla oblongata (MO).MethodsPubMed, EBSCO, and Springer databases between January 1st, 2000 and May 1st, 2018 were searched with the combined keywords of " multiple sclerosis” and " medulla oblongata”. Furthermore, the MS patients’ MRI manifestations, pathological and clinical characteristics, and treatment outcomes were summarized.ResultsA total of 18 papers were involved, in which 26 patients were included. The lesions in MO were mainly showed by wedge-shape (9/20), and round or oval-shape (9/20) in axial head MRI. Inflammatory cells infiltration and acute demyelination in the new lesions of MO had been displayed by autopsy reports of two MS patients. The new lesions in MO mainly referred to various types of nystagmus (9/26), left ventricular apical ballooning syndrome (LVABS) (8/26), neurogenic pulmonary edema (NPE) (6/26), and acute heart failure (6/26). Nucleus tracts solitaries (NTS), along with dorsal motor nucleus of the vagus nerve and medial reticular formation (MRF), was related to LVABS and NPE. Intercalatus nucleus, Roller nucleus and/or autonomic nerve structure were related to various types of nystagmus.ConclusionsIn axial head MRI, the new MS lesions in MO were mainly wedge-shape and round or oval-shape. Beyond that, the new MS lesions in MO could involve NTS, dorsal motor nucleus of the vagus nerve, MRF, intercalatus nucleus, Roller nucleus and/or autonomic nerve structure, resulting in special clinical features, such as, nystagmus, LVABS, NPE, and acute heart failure. Corticosteroid is still the main treatment to relieve the clinical manifestations caused by new MS lesions in MO.

    Release date:2018-06-26 08:57 Export PDF Favorites Scan
  • Clinical evaluation of three methods of digestive tract reconstruction in radical resection for proximal gastric cancer

    ObjectiveTo investigate the application of three methods about digestive tract reconstruction in radical resection for proximal gastric cancer.MethodsWe retrospectively reviewed the cases of 130 proximal gastric cancer patients who underwent double tract reconstruction (TD, 35 cases), total gastrectomy (TG, 50 cases) and esophagogastrostomy (EG, 45 cases) from Jan. 2016 to Oct. 2018 in Gastrointestinal Surgery Department in our Hospital.ResultsThere were no significant differences in basic data of patients, preoperative nutritional status, hemoglobin content, postoperative recovery time of gastrointestinal function, hospitalization time and early postoperative complications among the three groups (P>0.05). But the operative time, intraoperative bleeding volume, postoperative status of total protein, albumin, hemoglobin, late complications, reflux symptoms, gastro-intestinal quality of life index (GIQLI) between the three groups had statistically significant differences (P<0.05). The operative time of EG was (161.80±30.77) min, which was the shortest. The intraoperative bleeding volume of TG was (107.20±10.70) mL, which was the most. At 6 months after TG, the total protein, albumin and hemoglobin were (62.15±6.72) g/L, (36.14±6.57) g/L and (112.68±16.97) g/L, respectively, which were the lowest level among the three groups. There late complications of the EG were the most serious, in which the Visick score was 46 and the GIQLI index was 103.56±22.01. The above differences were statistically significant (P<0.05).ConclusionsDT performs better in anti-reflux, maintenance of postoperative nutrition, and anti-anemia, but the occurrence of remnant gastric cancer is a potential risk. TG has a lot of bleeding, as well as the performance of postoperative nutrition and anti-anemia is not good, but it can avoid the occurrence of remnant gastric cancer. The operative time of EG is short, but reflux symptoms are more likely to occur after surgery, and the quality of life is bad.

    Release date:2019-08-12 04:33 Export PDF Favorites Scan
  • Evaluation on the Effect of Improved Oven for Defluorination in China

    Objectives To analyze the effect of improved oven for defluorination in coal-burning endemic fluorosis areas in China, and to provide evidence for the prevention and control of fluorosis. Methods Electronic databases including CNKI, CBM, VIP and CDMD-D (1989 to 2005), were searched. We also checked the reference lists of relevant articles. We selected relevant articles according to the predefined inclusion and exclusion criteria. The methodological quality was assessed . Data on room heat preservation and the effect of improved oven for defluorination were collected in the surveillance spots of Three Gorges Reservoir. Correlation analyses were conducted between the improved oven and its effect parameters. Results Twelve articles of low quality met the selection criteria, of which 9 were graded C and 3 were graded D in terms of the methodological quality. A negative correlation was found between the decreasing rate of normal oven use and the decreasing rate of dental fluorosis as well as of urine fluorine (Pearson correlation coefficient r = – 0.87, – 0.63, Plt;0.01, lt;0.05, respectively). Analysis also revealed a positive correlation between room heat preservation and the decreasing rate of dental fluorosis as well as of normal oven use (the two Spearman correlation coefficients and P values were the same: r = –1.00, Plt;0.01). Conclusion High-quality studies on the effect of improved oven for defluorination in China are not available. Based on the current evidence, the improved oven for defluorination and the correct use, maintenance and house rebuilding for heat preservation may help to prevent fluorosis.

    Release date:2016-09-07 02:18 Export PDF Favorites Scan
  • Promoting Regeneration Effect of Heparin Binding Epidermal Growth Factor-Like Growth Factor on Rat Hepatocytes after Partial Orthotopic Liver Transplantation

    ObjectiveTo evaluate the effect of heparin binding epidermal growth factor-like growth factor (HB-EGF) on liver regeneration after partial orthotopic liver transplantation. MethodsFourty SD rats were used to establish the model of partial orthotopic liver transplantation with ameliorated two-cuff technique. Then all the rats were divided into 2 groups: experiment group and control group. Twenty rats of experiment group were administered 500 μg/kg HBEGF via vena caudalis immediately after operation twice a day, while the same volume of saline was administered to the rats in control group. Five rats in each group were selected randomly and killed at the 6th hour, day 2, 4 and 7 after operation, respectively. The serum levels of albumin (Alb) and alanine aminotransferase (ALT) in the blood sample were detected. Every liver was removed and weighed. The expression of Ki67 was detected by using immunohistochemistry assay. The regeneration activity of hepatocytes was evaluated by flow cytometry. ResultsThe wet weights of liver in experiment group were all significantly higher than that in control group at the 6th hour, day 2 and 4 after transplantation (P<0.05). The serum levels of ALT were significantly lower in experiment group than those in control group at the 6th hour, day 2, 4, 7 after operation (P<0.05), while the levels of Alb were significantly higher on day 4 and 7. The proliferating index and Ki-67 labeling index of graft in experiment group were higher than those in control group on day 2 and 4 after transplantation (2 d: P<0.01; 4 d: P<0.05). ConclusionHBEGF could promote the regeneration of rat hepatocytes after partial liver transplantation.

    Release date:2016-09-08 11:43 Export PDF Favorites Scan
  • Effect of different nebulization methods in acute exacerbations of chronic obstructive pulmonary disease requiring non-invasive ventilation

    ObjectiveTo analyze the effect of different nebulization methods in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD) requiring non-invasive ventilators (NIV). MethodsOne hundred and two patients with AECOPD were selected according to the standard, and randomly divided into a control group, a trial group I, and a trial group II according to the random number table. The patients in the control group received NIV intermittent oxygen-driven nebulization; the patients in the trial group I received NIV simultaneous oxygen-driven nebulization; and the patients in the trial group II received NIV simultaneous air-driven nebulization. The dynamic fluctuations of transcutaneous partial pressure of carbon dioxide (PtCO2), arterial blood gas indexes (PaCO2, PaO2, pH), vital signs and pulse oxygen saturation (SpO2) fluctuations were compared. ResultsPtCO2 at 15min of nebulization in the trial group II were lower than the other groups (P<0.05). PtCO2 at 15min of nebulization was higher than the other time points in the control group (P<0.05); there was no statistical difference of PtCO2 at different time points in the trial group I (P>0.05); PtCO2 gradually decreased with time in the trial group II (P<0.05). The difference before and after nebulization of PtCO2 (dPtCO2) was larger in trial group II than the other groups (P<0.05). PtCO2 at 0min and 5min after the end of nebulization in trial group II were lower than the other groups (P<0.05); there were no statistical differences of PtCO2 at 10min and 15min after the end of nebulization among three groups (P>0.05). There were statistical differences of the PtCO2 at each time point in the control group except for the PtCO2 at 10 min and 15min after the end of nebulization, all of which decreased with time; PtCO2 at each time points of nebulization decreased with time in the trial group I (P<0.05). PtCO2 only at 5min after the end of nebulization was lower than that at 0min after the end of nebulization in trial group II (P< 0.05), there were no statistical differences in other times (P>0.05). PaCO2, pH at the 4th day of treatment was lower than the pre-treatment in the control group (P<0.01); there were statistical differences of PaCO2 between the pre-treatment and the rest time points in the trial group I and group II (P<0.05). The number of abnormal fluctuations in vital signs and SpO2 during nebulization in three groups was not statistically different (P>0.05). ConclusionsThree groups can achieve good therapeutic effects. NIV intermittent oxygen-driven nebulization can make PtCO2 rise during nebulization; NIV simultaneous oxygen-driven nebulization can make PtCO2 remain stable during nebulization; NIV simultaneous air-driven nebulization can make PtCO2 fall during nebulization.

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  • Effectiveness of patellar tendon reconstruction with LARS artificial ligament for old patellar tendon rupture

    ObjectiveTo explore the effectiveness of patellar tendon reconstruction by using LARS artificial ligament in treatment of old patellar tendon rupture.MethodsA clinical data of 12 patients with old patellar ligament ruptures, who met the inclusive criteria and reconstructed with LARS artificial ligament between December 2011 and December 2017, was retrospectively analyzed. There were 8 males and 4 females with an average age of 33.5 years (range, 18-55 years). The cause of injury included traffic accident injury in 4 cases, sport injury in 5 cases, and violent injury in 3 cases. There were 5 cases in the left knee and 7 cases in the right knee. The disease duration was 2-12 weeks (mean, 2.5 weeks). The preoperative Lysholm score and Kujala score were 43.2±3.2 and 43.9±2.6, respectively. The knee range of motion was (106.5±14.7)°. The thigh circumference which was measured at 10 cm above the upper end of the patella was (40.92±1.93) cm. There were 4 cases of patellar ligament body rupture, 1 case of patella distal pola rupture, and 7 cases of tibial tuberosity attachment rupture. Preoperative Caton-Deschamps index was 1.47±0.13.ResultsAll patients were followed up 12-30 months (mean, 20.5 months). All incisions healed by first intention. And no complication such as infection, recurrent rupture, and neurovascular injury occurred. At 1 year after operation, the knee range of motion was (131.0±10.2)°, Lysholm score was 87.4±2.4, Kujala score was 88.3±4.8, the thigh circumference which was measured at 10 cm above the upper end of the patella was (42.58±1.93) cm; all showing significant differences when compared with preoperative values (P<0.05). The effectiveness results were excellent in 9 cases and good in 3 cases according to the Insall evaluation criteria. The Caton-Deschamps index was 1.09±0.11, which was significantly lower than preoperative one (t=8.155, P=0.000).ConclusionPatellar tendon reconstruction with LARS artificial ligament is an effective method for the old patellar ligament rupture, which can effectively repair the knee extension device and restore knee function.

    Release date:2019-05-06 04:48 Export PDF Favorites Scan
  • Ultrasound elastography and conventional ultrasound in diagnosis of benign and malignant breast lumps: a systematic review and meta-analysis

    Objective To evaluate the diagnostic value of conventional ultrasound, ultrasound elastography and their combination in benign and malignant breast nodules using meta-analysis. Methods The English databases (EMBASE, PubMed, Cochrane Library) and Chinese databases (China Biomedical Literature Database, China HowNet, VIP, Wanfang Database) were searched to collect the Chinese and English literatures about the diagnostic value of conventional ultrasound and elastography in differentiating the benign and malignant breast lesions up to April 20, 2021, the reviewers strictly followed the inclusion and exclusion criteria to screen the literature, extract the data and conduct quality assessment. The sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, diagnostic odds ratio and 95%CI were calculated by using meta-DiSc1.4 software for heterogeneity analysis and data combining analysis. The forest map and receiver operating characteristic (ROC) curve was drew, and the area under the ROC curve was calculated. StataSE14.0 software was used to draw deek funnel plot to evaluate publication bias, and Fagan’s nomogram was used to evaluate the clinical utility of each test method. Results A final selection of 42 articles involving 6 009 nodules in 5 118 patients was included. The sensitivity for conventional ultrasound, elastosonography and two techniques combination was 0.80 [95%CI (0.79, 0.82)], 0.87 [95%CI (0.86, 0.89)] and 0.93 [95%CI (0.91, 0.94)], respectively; with specificity of 0.75 [95%CI (0.73, 0.76)], 0.85 [95%CI (0.84, 0.86)] and 0.94 [95%CI (0.93, 0.95)]. The summery area under curve was 0.86, 0.94 and 0.98, respectively. There were significant differences in the diagnostic efficiency among the three groups(all P<0.05). The Deek’s funnel plot showed no significant publication bias (all P>0.05). The pre-testprobability of conventional ultrasound, elastosonography and two techniques combination were both 20%, and the post-testprobability were 49%, 66%, and 82%, respectively. Conclusions The accuracy of elastography in distinguishing benign from malignant breast nodule is relatively high, while the accuracy of benign and malignant nodules in conventional ultrasound is generally acceptable. However, the accuracy of the combination of the two is higher, which is worthy of clinical application.

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  • 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.

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  • Pathological diagnostic value of respiratory optical coherence tomography in lung cancer

    Objective To explore the pathological diagnostic value of optical coherence tomography (OCT) in lung cancer. Methods This study selected patients who underwent general anesthesia and electronic bronchoscope biopsy at the Respiratory Endoscopy Center of Sichuan Provincial People’s Hospital from January 1, 2023, to December 1, 2023. White-light bronchoscopy (WLB), auto-fluorescence bronchoscopy (AFB), and OCT examinations were performed in all patients. Lesions were assessed for benign or malignant characteristics based on AFB and OCT before biopsy. The final pathological results were determined according to pathology report. Results A total of 124 patients were included in the study. The accuracy of OCT in differentiating the nature of lesions was 93.55%, significantly higher than AFB (accuracy 83.06%). The accuracy, sensitivity, and specificity of OCT were all higher than AFB. For squamous carcinoma, adenocarcinoma, and small cell lung cancer, the accuracy rates of OCT imaging characteristics were 91.94%, 94.35%, and 94.35%, respectively. Conclusion OCT can improve the accuracy of pre-bronchoscopic tissue pathology biopsy in determining the nature of lesions and provide rapid pathological typing basis, potentially further promoting the development of non-invasive histological biopsy.

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  • Effect Observation of Rosiglitazone Plus Metformin in Treating Type 2 Diabetes Mellitus

    【摘要】 目的 观察罗格列酮加二甲双胍联合治疗对2型糖尿病患者的降糖作用和安全性以及对胰岛素抵抗的影响。 方法 对2007年8月-2008年5月收治的2型糖尿病患者53例采用自身前后对照研究,48例符合入选条件的患者,接受罗格列酮加二甲双胍为期12周治疗。试验开始和结束日测定患者空腹血糖(fast plasma glucose,FPG)、血清胰岛素(serum insulin,FINS)、总胆固醇(total cholesterol,TC)、甘油三酯(triglyceride,TG)、高密度脂蛋白胆固醇(high-density lipoprotein cholesterol,HDL-C)和糖化血红蛋白(glycosylated hemoblobin,HbA1c)以及标准餐后2 h血糖(postprandial 2 hours blood glucose,2hPPG)和胰岛素(postprandial 2 hours insulin,2hPINS)。胰岛素敏感性采用HOMA2模型公式评价。 结果 12周时FPG、FINS、2hPINS、 HbA1c均较治疗前基线时下降,分别为(8.16±2.37) mmol/L与(6.57±1.90) mmol/L,(8.84±8.07) mU/L与(7.28±6.84) mU/L,(26.87±3.13) mU/L与(20.18±13.25) mU/L,7.60%±1.71%与6.79%±1.82%,差异有统计学意义(Plt;0.05)。胰岛素抵抗指数显著低于治疗前(2.77±0.90与3.74±1.61,Plt;0.05)。其余代谢参数变化差异无统计学意义(Pgt;0.05)。 结论 罗格列酮加双胍类药物联合治疗2型糖尿病能有效降2型糖尿病患者的血糖水平,提高胰岛素敏感性,不增加体重,无低血糖发生,是一种安全有效的治疗方案。【Abstract】 Objective To observe the effect and security of rosiglitazone plus metformin in patients with type 2 diabetes mellitus, and the effect on insulin resistance. Methods Forty-eight cases suitable for this study were accepted and compared from August 2007 to May 2008. Patients accepted rosiglitazone plus metformin for 12 weeks. Fasting plasma glucose (FPG), serum insulin (FINS), total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), glycosylated hemoglobin (HbA1c), postprandial 2 hours blood glucose and postprandial 2 hours insulin were determined at the first and last day of this study. HOMA 2 model formula evaluation was used in testing insulin sensitivity. Results After a 12-weeks’ treatment, FPG, FINS, 2hPINS, and HbA1c of patients were lower than those before treatment [(8.16±2.37) mmol/L vs (6.57±1.90) mmol/L; (8.84±8.07) mU/L vs (7.28±6.84) mU/L; (26.87±19.31) mU/L vs (20.18±13.25) mU/L; 7.60%±1.71% vs 6.79%±1.82%; Plt;0.05)]. Insulin resistance index was lower than that after treatment (2.77±0.90 vs 3.74±1.61, Plt;0.05). Other metabolic related parameter had no statistical difference (Pgt;0.05). Conclusion Rosiglitazone plus metformin treatment of type 2 diabetes mellitus is effective both in reducing in blood glucose levels and improving insulin sensitivity, and without gain weight, incidence of hypoglycemia. It is a safe and effective option.

    Release date:2016-09-08 09:50 Export PDF Favorites Scan
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