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find Author "ZENG Yan" 9 results
  • Clinical Analysis of Patients with Amyotrophic Lateral Sclerosis

    【摘要】 目的 探讨肌萎缩性侧索硬化(amyotrophic lateral sclerosis,ALS)的临床特点和诊断。 方法 分析2005年1月-2009年1月收治的57例ALS患者,对其临床特点进行统计分析。 结果 ALS以50~60年龄段发病为主,男性多见。患者平均发病年龄52岁,男女发病年龄无差别,男女比例1.7∶1,死亡23例(40.4%),平均生存时间22个月。 结论 发病年龄越晚,病后存活时间越短。临床表现隐袭起病,逐渐进展。其诊断主要依据临床表现,肌电图检查对早期诊断有重要的价值。【Abstract】 Objective To analyze clinical features and diagnosis of patients with ALS. Methods Fifty-seven patients with ALS were consecutively followed up, and their clinical characteristics were collected from January 2005 to January 2009. Results The average age of onset of patients with ALS was about 50-60 years, and the male was predominant. The mean age of onset was 52 years, and there was no significant difference in the mean age of onset regarding to gender. The ratio of male and female was 1.7. Twenty-three patients (40.4%) died during the period of follow-up, and the mean disease duration was 22 months. Conclusion The older the onsetage is, the more rapid the progression of the disease and shorter the survival time ane. ALS is characterized by onset slowly and progressive muscular paralysis. The diagnosis is primarily based on clinical characteristics, and electromyography examin7ation in early diagnosis has important value.

    Release date:2016-09-08 09:52 Export PDF Favorites Scan
  • The Effect of Hypoxic Preconditioning on Old Rat Model of Postoperative Fatigue Syndrome Caused by Excision of Bilateral Accessory and Hysterectomy

    目的:研究缺氧预处理对老年大鼠子宫及双附件切除术后疲劳是否有改善作用,并通过对比观察超氧化物歧化酶及丙二醛水平的变化,初步探讨缺氧预处理的作用机制。方法:将老年大鼠分为空白对照组、对照组、缺氧预处理三组。空白对照组为假手术组,对照组为子宫及双附件切除术组, 缺氧预处理组为缺氧预处理加子宫及双附件切除术组。对比观察缺氧预处理对大鼠体力活动及血清超氧化物歧化酶和丙二醛水平的影响。结果:空白对照组、对照组、缺氧预处理三组大鼠悬尾不动时间分别为:(21±3)s,(83±10)s,(44±5)s,各组间比较Plt;0.05。三组SOD活性分别为:(131.23±5.31)U/L,(36.12±9.68)U/L,(73.01±9.82)U/L,各组间比较Plt;0.05。三组MDA水平分别为:(9.78±1.26)μmol/L,(29.87±3.13)μmol/L,(15.98±2.21)μmol/L,各组间比较Plt;0.05。结论:缺氧预处理可提高老年大鼠的抗氧化能力,对老年大鼠子宫及双附件切除术后疲劳综合征有明显的改善作用。

    Release date:2016-09-08 10:02 Export PDF Favorites Scan
  • Clinical Application of Digital Gastrointestinal Machine and Modified Hypotonic DoubleContrast Barium Enema Technique

    ObjectiveTo improve the efficacy of colon doublecontrast barium enema examination by using digital gastrointestinal machine and modified enema techniques. MethodsSixtyfour patients were examined on digital remote controlled gyration table, with oral coloncleansing preparation and selfmade disposable plastic bag. Results In 64 patients, up to 93.8% were found with none or little fecal materials in the cecum and ascending colon. 80% of the results were scored excellent, and 95% were accurate for making diagnosis. All the patients underwent the examination successfully. ConclusionDigital gastrointestinal machine examination combined with modified hypotonic doublecontrast barium enema is a simple, convenient and efficient way to clearly demonstrate colonic mucosa, and help increase the detection and diagnosis rate.

    Release date:2016-08-28 04:43 Export PDF Favorites Scan
  • Traditional Chinese medicine paste in the treatment of chronic obstructive pulmonary disease in stable stage: a systematic review of randomized controlled trials

    Objective To evaluate the efficacy and safety of traditional Chinese medicine(TCM) paste in treating chronic obstructive pulmonary disease (COPD) in stable stage. Methods We electronically searched databases including PubMed, EMbase, The Cochrane Library (Issue 12, 2016), VIP, WanFang Data, CNKI and CBM to collect randomized controlled trials (RCTs) regarding TCM paste in combination with conventional Western therapy versus Western therapy alone in treating stable COPD from inception to December 2016. Two reviewers independently screened literature, extracted data and assessed the risk of bias of the included studies. The meta-analysis was conducted by RevMan 5.3 software. Results A total of 9 RCTs involving 605 Chinese patients were included. The results of meta-analysis showed that: when compared with conventional Western medicine alone, TCM paste combined with the conventional Western medicine significantly improved clinical effective rate (RR=1.20, 95% CI 1.10 to 1.31,P<0.000 1), decreased SGRQ score (MD=–4.53, 95% CI –5.41 to –3.65,P<0.000 01) and CAT score (MD=–2.45, 95% CI –3.38 to –1.51,P<0.000 01), increased FEV1% (MD=3.80, 95% CI 0.40 to 7.20,P=0.03), and reduced the frequency of acute exacerbation (P<0.05). No serious adverse reaction occurred in both groups. Conclusion The current evidence shows that combination of TCM paste and conventional Western medicine may improve clinical effective rate, quality of life, increase FEV1%, and reduce the frequency of acute exacerbation in patients with stable COPD. Due to the limited quality and quantity of included studies, the above results are needed to verify by more studies.

    Release date:2017-04-01 08:56 Export PDF Favorites Scan
  • An age-stratified follow-up of complications and clinical benefit of posterior lumbar intervertebral fusion procedure in middle-aged and older patients

    ObjectiveTo compare the complications and clinical scores of posterior lumbar intervertebral fusion (PLIF) in middle-aged and older patients of different ages, and to assess the risk of complications of PLIF in different ages, providing a reference for clinical treatment.MethodsThe clinical data of 1 136 patients, who were more than 55 years old and underwent PLIF between June 2013 and June 2016, were retrospectively analyzed. According to the age of patients undergoing surgery, they were divided into 3 groups as 55-64 years old, 65-74 years old, and ≥75 years old. The general characteristics, comorbidities, and surgical data of the three groups were compared, with comparison the morbidity of complications. According to the minimal clinical important difference (MCID), the improvement of patient’s pain visual analogue scale (VAS) score and the Oswestry disability index (ODI) score were compared. Univariate logistic regression analysis was used to analyze the difference of complications and the improvement of VAS and ODI scores. Multivariate logistic regression analysis was performed for the risk factors of complications.ResultsThere were significant differences in the number of surgical fusion segments and osteoporosis between groups (P<0.05); there was no significant difference in gender, body mass index, operation time, preoperative American Society of Anesthesiologists (ASA) classification, and comorbidities between groups (P>0.05). All patients were followed up 6-62 months with an average of 27.4 months. Among the results of postoperative complications, there were significant differences in the total incidence of intraoperative complications, systemic complications, minor complications, and the percentage of improvement of ODI score to MCID between groups (P<0.05); but there was no significant difference in the total incidence of complications at the end of long-term follow-up and the percentage of improvement of VAS score to MCID between groups (P>0.05). Univariate logistic regression analysis showed that after adjusting the confounding factors, there were significant differences in intraoperative complications and the percentage of improvement of ODI score to MCID between 55-64 and 65-74 years old groups (P<0.05); systemic complications, minor complications, complications at the end of long-term follow-up, and the percentage of improvement of ODI score to MCID in ≥75 years old group were significantly different from those in the other two groups (P<0.05). Multivariate logistic regression analysis showed that age was a risk factor for systemic complications, minor complications, and complications at the end of long-term follow-up. Except for age, long operation time was a risk factor for intraoperative complications, increased number of fusion segments was a risk factor for systemic complications, the number of comorbidities was a risk factor for minor complications, and osteoporosis was a risk factor for complications at the end of long-term follow-up.ConclusionThe risk of surgical complications is higher in the elderly patients (≥75 years) with lumbar degenerative diseases than in the middle-aged and older patients (<75 years), while the improvements of postoperative VAS and ODI scores were similar. Under the premise of fully assessing surgical indications, PLIF has a positive effect on improving the elderly patients’ quality of life.

    Release date:2019-07-23 09:50 Export PDF Favorites Scan
  • Effect of pre-existing adjacent segment degeneration on short-term effectiveness after lumbar fusion surgery

    Objective To analyze the prospective effect of pre-existing spinal stenosis of adjacent segment on the short-term effectiveness after lumbar fusion surgery. Methods A prospective comparative study was conducted to divide 183 patients with L4-S1 lumbar spinal stenosis who met the selection criteria between July 2015 and December 2017 into two groups according to the status of adjacent segment degeneration (ASD) judged by preoperative disc degeneration and spinal stenosis. There were 98 patients in group A (no degeneration of adjacent segments before operation) and 85 patients in group B (adjacent segments degenerated before operation). There was no significant difference in gender, American Society of Anesthesiologists (ASA) grade, body mass index (BMI), combined spondylolisthesis, and preoperative visual analogue scale (VAS) score of low back pain and leg pain, Japanese Orthopaedic Association (JOA) score, and Oswestry disability index (ODI) score between the two groups (P>0.05); the age of group A was significantly younger than that of group B (t=−3.560, P=0.000). The operation time, intraoperative blood loss, hospitalization stay, and perioperative complications were recorded and compared. The VAS score of low back pain and leg pain, JOA score, and ODI score at last follow-up were used to evaluate the effectiveness. The incidence of ASD after operation was compared between the two groups, and logistic regression was used to analyze the independent risk factors affecting the occurrence of ASD after operation. Results There was no significant difference in operation time, intraoperative blood loss, and hospitalization stay between the two groups (P>0.05). The incidence of perioperative complications in groups A and B was 13.3% and 20.0%, respectively, with no significant difference (χ2=1.506, P=0.220). Two groups of patients were followed up, the follow-up time of groups A and B was (24.9±8.8) months and (24.8±7.8) months, respectively, there was no significant difference (t=0.050, P=0.960). At last follow-up, no adjacent segment disease was found in either group. There was no significant difference in Pfirrmann grade between the two groups at last follow-up (P>0.05), and there was significant difference in Pfirrmann grade between the two groups before operation and at last follow-up (P<0.001). At last follow-up, 21 cases (21.4%) in group A and 53 cases (62.4%) in group B had ASD, with significant difference (χ2=31.652, P=0.000). The main cause of ASD was the severity of adjacent spinal canal stenosis. The clinical scores of the two groups at last follow-up were significantly improved when compared with those before operation (P<0.05). The JOA score of group A was significantly higher than that of group B at last follow-up (P<0.05). In group B, the VAS score of low back pain and ODI score in patients with ASD after operation at last follow-up were significantly higher than those in patients without ASD (P<0.05). logistic regression analysis showed that preoperative pre-existing degeneration and BMI were independent risk factors for ASD after operation (P<0.05). Conclusion Pre-existing mild spinal stenosis in adjacent segment can significantly affect the effectiveness, and can significantly increase the risk of ASD early after operation. The main pathological type of ASD was the severity of adjacent segment spinal stenosis. For preoperative assessment of pre-existing degeneration, we should evaluate the overall degeneration of the adjacent segment of the spinal canal, rather than simply evaluating the degeneration of the adjacent disc and facet joints.

    Release date:2019-06-20 03:12 Export PDF Favorites Scan
  • A systematic review of SARS-infected pregnant females, newborns, children and adolescents

    ObjectivesTo systematically review the clinical characteristics of pregnant females, newborns, children and adolescents with SARS infection.MethodsThe clinical characteristics of patients with SARS infection were searched using PubMed, EMbase, Web of Science, The Cochrane Library, CNKI, WanFang Data and VIP databases. Descriptive analysis was performed to analyze the clinical characteristics of the patients, clinical manifestations, treatment and prognosis.ResultsA total of 13 studies including 19 pregnant females, 14 newborns, and 81 children and adolescents were identified. The ratio of male to female was 1 to 1.2 in children and adolescents patients aged 56 days to 17.5 years. Children under 12 years old accounted for 58.3% (28/48). Of the child patients, 34.0% (16/47) had close contact with patients with SARS. Fever (93.8%, 76/81) and cough (49.4%, 40/81) were the most common symptoms in children and adolescents with SARS infection, and 17.5% (11/63) occurred with shortness of breath or dyspnea. The positive ratio of nucleic acid detection for SARS-CoV was 9.2% (14/48), and the positive ratio of serum antibody was 92.9% (13/14). Peripheral blood lymphocyte reduction was approximately 65.7% (44/67). Approximately 70.8% (51/72) unilateral and 29.2% (21/72) bilateral lesions were found by thoracic X-ray or CT scan. No child fatalities were reported. As of maternal patients, aged 23 to 44 years, 10 cases (52.6%) were infected during early and middle pregnancy, and 9 cases (47.4%) during late pregnancy. Fever (100.0%, 19/19) and cough (78.9%, 15/19) were the main clinical symptoms, and shortness of breath/dyspnea occurred in 36.8% (7/19) of infected pregnant females. The positive ratio of nucleic acid detection for SARS-CoV was 50.0% (8/16), whereas the positive ratio of serum antibody was 93.3% (14/15). The ratios of thrombocytopenia, lymphopenia, and liver enzymes abnormalities were 38.9% (7/18), 61.1% (11/18) and 50.0% (3/6). All patients were identified for lesions by thoracic X-ray or CT scan examination. Seven cases were severe (36.8%). Five patients were treated with mechanical ventilation (26.3%). Three patients died (15.8%). Four patients were spontaneous abortion (40.0%, 4/10). Nine patients were cesarean sectioned (75.0%, 9/12). Six fetuses (46.2%, 6/13) with fetal distress, 7 cases (53.8%, 7/13) with premature delivery were identified. Three fetuses (23.1%) had intrauterine growth retardation. None of the fourteen newborns was diagnosed as SARS infection.ConclusionsThe clinical symptoms such as fever and cough in children and adolescents with SARS infection are similar to that of adult patients. However, children and adolescents are usually manifested as mild infection without reported death. There is no evidence to support that SARS-CoV could transmit vertically from infected mother to their fetuses.

    Release date:2020-04-30 02:11 Export PDF Favorites Scan
  • Clinical characteristics of pregnant female and juvenile patients with MERS: a systematic review

    ObjectivesTo systematically review the clinical characteristics of pregnant females and juveniles (<18 years) with Middle East Respiratory Syndrome (MERS), so as to provide evidence for epidemic prevention and treatment of COVID-19.MethodsPubMed, EMbase, Web of Science, The Cochrane Library, CNKI, VIP and WanFang Data databases were electronically searched to collect studies on clinical characteristics of pregnant females and juveniles with MERS from inception to February 15th, 2020. Two reviewers independently screened literature, extracted data and assessed risk of bias of included studies. Descriptive analysis was then performed.ResultsA total of 12 studies involving 12 pregnant females, and 21 juveniles with MERS were included. The results of studies showed that the male to female ratio of juveniles patients was 1 to 1.63 and the age ranged from 9 months to 16 years. The primary transmission route of juveniles cases was family contact infection, accounting for 57.1% (12/21). Asymptomatic juveniles accounted for 57.1% (12/21), and the most common symptoms were fever, cough and shortness of breath. Some patients exhibited gastrointestinal symptoms such as vomiting and diarrhea. The positive rate of MERS-CoV RCT test was 100.0% (21/21). As for chest radiograph, 73.7% (14/19) cases showed no obvious lesions, and juveniles with lesions were mainly bilateral. 3 patients with underlying diseases developed severe cases, the mortality was 9.5% (2/21). The age range of pregnant women was 27 to 39, with the gestational age from 6 to 38 weeks. The primary transmission route for pregnant women was nosocomial infection, accounting for 57.1% (4/7). Fever, cough, shortness of breath were common manifestations, while abdominal pain occurred in two female patients. The positive rate of MERS-CoV RCT test was 100.0% (11/11). The chest radiograph findings were mainly bilateral lesions, accounting for 55.6% (5/9). 80.0% of whole pregnant females were severe cases (8/10), 4 of them died, with the 50.0% (4/8) mortality in severe pregnant cases. Among the infective pregnant women, 2 were stillborn and 10 were delivered, of which 1 died due to premature delivery. The remaining 9 surviving newborns were not infected with MERS-CoV and there was no evidence of mother-to-child transmission.ConclusionsThe clinical symptoms of MERS in juveniles are similar to those in adults, however, considerably milder. Severe case rate is higher in patients with underlying diseases. However, maternal infections could be much severe with higher mortality. It is particularly important to strengthen the management of pregnant females, especially prevent hospital infection. There is still no evidence of MERS-CoV mother-to-child transmission.

    Release date:2020-06-18 09:20 Export PDF Favorites Scan
  • Epidemiological characteristics of pregnant females and children with H1N1-infected during the global pandemic in 2009: a systematic review

    ObjectiveTo analyze the clinical data of pregnant females and children infected with H1N1 during the global pandemic in 2009, and summarize the epidemiological characteristics.MethodsPubMed, EMbase, The Cochrane Library, CNKI, VIP and WanFang Data databases were searched to collect studies on H1N1 infection in pregnant females and children during the 2009 pandemic from January 1st, 2009 to February 17th, 2020. Two reviewers independently screened literature, extracted data and assessed risk of bias of included studies, then, epidemiological characteristics were descriptively analyzed.ResultsA total of 33 studies involving 939 children, 5 newborns and 2 416 maternal infections were included. The results showed that the age span of children was 0 to 18, the male-to-female ratio was 1.2:1, and the history of close contact accounts was 18.8% (80/425). The primary symptoms were fever, cough, headache, vomiting and other symptoms in some children. More than half of the children received oseltamivir antiviral treatment (545/807, 67.5%), and 6 died (6/861, 0.7%). The primary symptoms of pregnant females were fever, cough, sore throat, muscle pain, fatigue, headache, diarrhea, and so on. The majority of patients received antiviral therapy (1 571 to 1 783, 88.1%). A total of 178 mortalities (178/2 335, 7.6%), 48 stillbirths (48/966, 5.0%), and 9 live birth mortalities (9/494, 1.8%) were reported. All 5 newborns were positive for RT-PCR detection, including 4 premature infants. The mode of transmission was close contact in 3 cases (including 1 case in contact with sick medical staff), 1 case of vertical transmission from mother to child, and 1 case of unknown. The primary clinical manifestation of newborns was dyspnea. After treatment with oseltamivir, 4 cases were cured and 1 case deceased.ConclusionsPregnant females and children are at high risk of serious complications of H1N1 influenza. H1N1 infection in pregnancy is associated with an increased risk of adverse pregnancy outcomes. The symptoms of H1N1 infection in children and pregnant females are similar to those in adults, primarily respiratory and systemic symptoms. Oseltamivir and zanamivir are effective antiviral drugs.

    Release date:2020-07-02 09:18 Export PDF Favorites Scan
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