Evidence-based medicine is the conscientious, explicit and judicious use of current best evidence in making decisions about the care of individual patients. The practice of evidence-based medicine means to integrate individual clinical expertise with the best available external clinical evidence from systematic research. So evidence and its quality is the key issue of evidence-based medicine. The purpose of this article is to introduce to the healthcare professionals the sources of evidence and how to search for evidence for them.
Evidence has been retrieved through MEDLINE and Cochrane Libray about the treatment for patients with advanced Parkinson’s disease who suffered from on-off, dyskinesia and depression after chronic use of L-dopa. All of the evidence has been evaluated. Methods of evidence-based treatment were drawn up according to the evidence, clinciams’ experiences and patients’ preferences. All symptoms of the patient have been improved obviously.
【摘要】 目的 了解成都市社区居民脑卒中的流行病学特征，为脑卒中预防、干预提供科学依据。 方法 采用整群随机抽样方法抽取成都市2个社区。对132 303人采用前瞻性的热追踪，搜集社区中脑卒中发病及死亡人群。 结果 2008年脑卒中发病率、死亡率分别为217.68/10万、49.13/10万，2009年发病率、死亡率分别为239.60/10万、41.57/10万，2008年—2009年标化发病率216.01/10万，标化死亡率43.61/10万。缺血性脑卒中患者构成比最高，占半数以上。发病率随年龄增长而增高（χ2=1 095.11，Plt;0.001），男女发病率差异无统计学意义（χ2=2.367，P=0.124）。 结论 成都市社区居民发病率与我国平均水平相当，死亡率略低于我国平均水平。【Abstract】 Objective To explore the epidemiologic features of cerebral apoplexy in community of Chengdu, and to provide references for intervention and prevention of cerebral apoplexy. Methods Two communitis in Chengdu were selected by randomized cluster sampling method. The morbidity and mortality in 132 303 people were calculated by prospective tracing. Results The annual incidence was 217.68 per 100 000, and the annual mortality was 49.13 per 100 000 in 2008. The annual incidence was 239.60 per 100 000, and the annual mortality was 41.57 per 100 000 in 2009. The age-standardized incidence was 216.01 per 100 000, and the age-standardized mortality was 43.61 per 100 000 in the two years. Ischemic cerebral apoplexy exceeded half of all and had a highest constituent ratio. The incidence Increased with the age (χ2=1 095.11, Plt;0.001), while there was no significant difference between the male and female (χ2=2.367, P=0.124). Conclusion The incidence of cerebral apoplexy in Chengdu City is similar to the average incidence of our country, and the mortality is lower than that of the average mortality.
In 2014, the new concept of embolic stroke of undetermined source (ESUS) was first proposed by cryptogenic stroke/ESUS International Working Group. In the past 5 years, related clinical researches of ESUS have been deepened, and the results of many large clinical studies have been published. However, the guiding significance of this new concept to clinical practice is still controversial. By reviewing the background, diagnostic criteria, assessment, common emboli sources, anticoagulant therapy research advances and related limitations of ESUS, and analyzing the possible causes of negative anticoagulant therapy results, we explored the clinical value of this new classification.
Object To collect and summarize high quality clinical evidence on the use of hyperbaric oxygen (HBO) in health care generally. Method We searched MEDLINE (1980-2006), The Cochrane Library (Issue 1, 2006) and the China Biomedicine Database (1982-2006) for systematic reviews, meta-analyses and randomized controlled trials. The quality of included studies was critically evaluated. Result Thirteen systematic reviews (12 Cochrane reviews) on HBO were included. Results showed that HBO had some beneficial effect on acute coronary syndrome, ischemic stroke, multiple sclerosis, malignant otitis externa, idiopathic sudden sensorineural hearing loss and tinnitus. It might also promote chronic wound healing and relieve radiation damage.Conclusions Since the avaliable randomized controlled trials for the systematic reviews we included are too small, further well-designed multicentre large-scale trials are needed to determine the efficacy and safety of HBO .
【摘要】 目的 分析无面部血管瘤的Sturge-Weber综合征（SWS）的临床特点。 方法 2008年10月收治1例女性患儿，8岁，因发作性四肢强直入院，患儿无面部血管瘤及眼部异常，仅表现为癫痫。患儿接受丙戊酸钠抗癫痫治疗。 结果 患儿经头部CT、MRI确诊为无面部血管瘤的SWS。抗癫痫治疗后随访12个月，未再发癫痫，智力发育无减退，未出现瘫痪、蛛网膜下腔出血、脑出血、脑卒中样发作等。 结论 无面部血管瘤的SWS确诊依靠头部CT及MRI，治疗方法为药物抗癫痫治疗。复习文献得出无面部血管瘤的SWS患者临床表现不同于有面部血管瘤者，多仅表现出癫痫发作，且药物治疗有效，无需手术切除病灶，预后较好。【Abstract】 Objective To analyze the clinical features of Sturge-Weber syndrome without facial hemangioma. Methods One eight-year-old girl was admitted to the hospital for tonic seizure in October 2008. The physical examination results were normal with neither facial hemangioma nor ocular abnormalities. The only manifestation of the patient was epilepsy. The patient was treated with sodium valproate. Results According to cranial CT and MRI results, the patient was considered to have Sturge-Weber syndrome without facial hemangioma. The patient was treated with anticonvulsant drugs and experienced no recurrence of the seizures or any manifestations of mental retardation, hemiplegia, subarachnoid hemorrhage, cerebral hemorrhage, stroke-like episodes or migraine during the following 12 months of follow-up. Conclusion In the absence of facial hemangioma, the diagnosis can be based on cranial CT and MRI. Sturge-Weber syndrome patients without facial hemangioma are helped by anticonvulsant drugs. According to this case and the reports of literature, most patients without facial hemangioma only manifest epilepsy which can be treated effectively with antiepileptic drugs and such patients have a good prognosis without operation, which is different from those with facial hemangioma.
Objective To study the risk factors of urinary incontinence in acute stroke patients and provide scientific evidence for preventing and managing such complication. Methods A computerized literature search was performed on both English and Chinese databases including Embase, Medline, Wanfang Data, VIP, and CNKI from January 1990 to January 2017 based on such search strategies as literature review and manual retrieval. In addition, we tracked down the related reference lists. The RevMan 5.3 software was used for Meta-analysis. Categorical data were calculated by the pooled odds ratio (OR) values and 95% confidence intervals (CI), and numerical data were calculated by pooled mean difference (MD) and 95%CI. Results A total of 17 articles of controlled studies with 2 428 cases and 3 725 controls were included. According to the results of Meta-analysis, factors associated with urinary incontinence following acute stroke were age [MD=2.80, 95%CI (0.29, 5.30),P=0.03], female gender [OR=1.29, 95%CI (1.16, 1.45),P<0.000 01], diabetes [OR=1.40, 95%CI (1.13, 1.73),P=0.002], heart disease [OR=1.65, 95%CI (1.29, 2.13),P<0.000 1), former cerebrovascular disease [OR=1.43, 95%CI (1.21, 1.69),P<0.000 1), speech disorder [OR=4.20, 95%CI (3.45, 5.10),P<0.000 01], smoking [OR=0.68, 95%CI (0.50, 0.92),P=0.01]. Hypertension [OR=1.25, 95%CI (0.99, 1.58),P=0.06], left hemisphere involvement [OR=1.29, 95%CI (0.81, 2.06),P=0.29], and hemorrhagic stroke [OR=1.26, 95%CI (0.79, 2.03),P=0.33] were not correlated with urinary incontinence following acute stroke. Conclusions Older age, female gender, diabetes, heart disease, former cerebrovascular disease and speech disorder are risk factors associated with post-stroke urinary incontinence, while smoking lowers the potential risk. However, hypertension, hemorrhagic stroke and left hemisphere involvement do not significantly increase the risk of urinary incontinence following stroke.