首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   229篇
  免费   2篇
  国内免费   8篇
儿科学   20篇
基础医学   8篇
临床医学   25篇
内科学   121篇
特种医学   14篇
外科学   7篇
综合类   17篇
预防医学   16篇
药学   4篇
中国医学   1篇
肿瘤学   6篇
  2023年   6篇
  2022年   16篇
  2021年   13篇
  2020年   4篇
  2019年   9篇
  2018年   10篇
  2017年   16篇
  2016年   7篇
  2015年   4篇
  2014年   11篇
  2013年   9篇
  2012年   8篇
  2011年   5篇
  2010年   8篇
  2009年   9篇
  2008年   12篇
  2007年   13篇
  2006年   5篇
  2005年   6篇
  2004年   7篇
  2003年   4篇
  2002年   1篇
  2001年   6篇
  2000年   3篇
  1999年   1篇
  1998年   2篇
  1997年   6篇
  1996年   1篇
  1995年   2篇
  1994年   4篇
  1993年   4篇
  1992年   1篇
  1991年   2篇
  1990年   1篇
  1989年   2篇
  1988年   1篇
  1987年   2篇
  1986年   2篇
  1985年   2篇
  1984年   4篇
  1983年   1篇
  1982年   2篇
  1981年   2篇
  1980年   1篇
  1979年   1篇
  1978年   2篇
  1969年   1篇
排序方式: 共有239条查询结果,搜索用时 15 毫秒
1.

Background

Purulent bacterial pericarditis is a rare and potentially fatal disease. The course may be fulminant, and the presentation may pose a diagnostic challenge.

Case report

An otherwise healthy 75-year-old male was brought to the emergency department in a state of general deterioration, confusion, and shock. Bedside ultrasound showed a significant pericardial effusion. His condition quickly deteriorated and the resuscitation included emergent bedside pericardiocentesis. The drainage was purulent and later cultures grew out Streptococcus pneumoniae.

Why should an emergency physician be aware of this?

Purulent pericarditis is extremely rare but should be considered in the patient with a fulminant infectious process (particularly pneumonia) and signs of pericardial effusion. Treatment should include appropriate antibiotics and early drainage.  相似文献   
2.
《Vaccine》2021,39(39):5541-5547
ObjectivesTo evaluate the rates of myopericarditis (primary objective) and rates of cardiovascular and neurological adverse events (secondary objectives) in temporal association with ACAM2000® smallpox vaccine.MethodsObservational cohort study conducted through monthly surveillance from 2009 to 2017 of electronic medical records of military service members (SM) for pre-specified cardiac and neurological International Classification of Diseases (ICD) codes reported in the 30 days following smallpox vaccination. ICD codes potentially predictive of myopericarditis and codes for encephalitis, Guillain-Barré syndrome, and sudden death were classified into Group 1. All other cardiovascular and neurological ICD codes were classified into Group 2. Medical records containing Group 1 codes were individually reviewed to confirm coding accuracy and to seek additional data in support of myopericarditis adjudication, which was performed by an independent clinical panel. Chart reviews were not performed for Group 2 codes, which were reported in aggregate only.Results897,227 SM who received ACAM2000 smallpox vaccine and 450,000 SM who received Dryvax smallpox vaccine were included in the surveillance population. The rate of adjudicated myopericarditis among ACAM2000 smallpox vaccine recipients was 20.06/100,000 and was significantly higher for males (21.8/100,000) than females (8.5/100,000) and for those < 40 years of age (21.1/100,000) than for those 40 years or older (6.3/100,000). Overall rates for any cardiovascular event (Group 1 plus Group 2) were 113.5/100,000 for ACAM2000 vaccine and 439.3/100,000 for Dryvax vaccine; rate ratio, 0.26 (95% CI, 0.24–0.28). The rates of subjects with one or more defined neurological events were 2.12/100,000 and 1.11/100,000 for ACAM2000 and Dryvax vaccines respectively; rate ratio, 1.91 (95% CI, 0.71–5.10).ConclusionsElectronic records surveillance of the entire vaccinated SM population over a ten-year period found rates of myopericarditis, of defined neurological events, and of overall cardiac events that were consistent with those of prior passive surveillance studies involving Dryvax or ACAM2000 smallpox vaccines.Clinical trials registration: ClinicalTrials.gov NCT00927719.  相似文献   
3.
4.
IntroductionCardiac complications in dengue patients are not uncommon and are not diagnosed, since they are usually mild and self-limiting.ObjectivesTo characterize the cardiovascular manifestations in hospitalized patients with dengue infection.MethodsWe conducted an observational, analytical, longitudinal, prospective epidemiological study, which included 427 patients treated at Manuel Fajardo Clinical-Surgical Teaching Hospital with diagnosis of dengue infection since April 2017 to April 2018.ResultsCardiovascular manifestations (19.7%), mainly heart rate disorders (sinus bradycardia [13.8%], atrial [4.9%] and ventricular [4.0%] extrasystoles) were frequent in dengue infection patients. Pericarditis and myocarditis were diagnosed in 1.6% and 0.2% respectively. These disorders were self-limiting in 83.3% of cases and occurred in the first days of the onset of fever in 75.0%. Advanced age (OR = 1.70), male sex (OR = 1.94), decreased platelet count (OR = 1.13) and dengue with warning signs (OR = 3.29) were related to a higher probability of presenting cardiovascular disorders in the course of a dengue infection.ConclusionsCardiovascular manifestations in dengue patients are frequent, and are related to advanced age, male sex, as well as severe forms of the disease.  相似文献   
5.
A 21-years-old with Down syndrome presented with respiratory distress. Initial investigations revealed a cardiac tamponade. On further evaluation, he had positive coronavirus disease-2019 (COVID-19), severe chest infection and severe hypothyroidism. He responded well to urgent pericardiocentesis, levothyroxine, hydrocortisone and tocilizumab.  相似文献   
6.
Pericardial and pulmonary involvement in rheumatoid arthritis in Turkey   总被引:2,自引:0,他引:2  
Summary Pericardial and lung involvement in rheumatoid arthritis (RA), suspected to be less severe in a developing nation (Turkey), have been evaluated. We have studied clinical, echocardiographic and pulmonary findings (radiological and functional) in 93 consecutive Turkish patients with definite/classical RA. Findings were compared with those of a group of patients with osteoarthritis or local rheumatological conditions (n=60) in a blind protocol. Fifty patients with systemic lupus (SLE) were studied as a high risk control group for pericardial involvement. While pericardial disease was detected in 5.5% (5/90) of RA patients, it was detected in 6.6% (4/60) of the control patients. SLE patients had a 26% (13/50) prevalence. Interstitial lung disease was found in 27.7% of RA patients but it was present in 6.6% (4/60) of the control patients. We observed that a group of patients with RA in Turkey had a low prevalence of pericardial disease. This is further evidence that RA has a mild course in developing countries.  相似文献   
7.

Introduction

Pericarditis is an inflammation of the pericardium. It may be infectious or secondary to a systemic disease. The aim of this study was to analyze the clinical findings, course, treatment and follow‐up of children diagnosed with pericarditis at our center.

Methods

We performed a retrospective analysis of all children admitted to our pediatric cardiology unit with pericarditis between 2003 and 2015. Patient characteristics were summarized using frequencies and percentages for categorical variables and medians with percentiles for continuous variables.

Results

Fifty patients were analyzed (40 male, 10 female) with a median age of 14 years. The most common diagnosis was acute pericarditis (80%). Thirty‐five patients (70%) presented with chest pain and 26% reported fever. Cardiomegaly was identified on chest X‐ray in 11 patients (22%), 30 patients (60%) had an abnormal ECG and 44 patients (80%) had alterations on the transthoracic echocardiogram. In 17 cases (34%) there was myocardial involvement. Forty‐eight percent of patients presented with infectious pericarditis and the pathologic agent was identified in half of them. Postpericardiotomy syndrome was diagnosed in five cases. The first‐line therapy was aspirin in 50% of cases. Pericardiocentesis was performed in 12 patients. The median length of stay was nine days. There was symptom recurrence in seven children.

Conclusions

In this study, acute infectious pericarditis was the most common presentation and about one third of patients also had myocarditis. The symptom recurrence rate was not negligible and is probably related to the type of therapy employed.  相似文献   
8.
Three patients with infective endocarditis who presented withsevere precordial pain and pericardial rubs are described inwhom sterile pericardial and pleural effusions were found. Thepericardial pain disappeared and the effusions regressed withsuccessful antibiotic treatment. A similar mechanism to thepostmyocardial infarction syndrome is suggested.  相似文献   
9.
结核所致缩窄性心包炎的临床病理分析   总被引:2,自引:0,他引:2  
目的 总结结核所致缩窄性心包炎的临床特点与病理改变.方法 对北京协和医院2000至2007年诊断的150例缩窄性心包炎病例的临床表现与病理特征进行回顾性分析.结果 在150例患者中,61例(40.7%)无心包积液史.超声心动图诊断心包缩窄149例,与手术诊断的一致率为98.7%(107/109).118例(78.7%)诊断为结核性,24例(16.0%)为肿瘤转移或浸润、放射性损伤、心脏手术后等其他原因,8例(5.3%)原因不明.经病理或病原学检查确诊为结核性心包炎者占16.7%(25/150);有心包外活动性结核病理证据者占5.3%(8/150);有典型的结核病临床表现或因抗结核治疗有效诊断者占44.0%(66/150);临床怀疑结核者占12.7%(19/150).108例患者接受心包剥脱术,1例行心包活检和心包切开引流术.死亡13例(8.7%),4例为结核.结论 结核仍然是缩窄性心包炎的最常见病因.心包结核多为全身结核病的一部分,但心包病理和病原学检查阳性率低.超声心动图对诊断缩窄性心包炎具有较高的实用价值.  相似文献   
10.

Objective

To report the clinical characteristic of cardiac disease in patients with mixed connective tissue disease (MCTD).

Method

We identified published case series that reported cardiac manifestations of patients with MCTD by searching the PubMed database using the search terms “mixed connective tissue disease”. We identified 11 case series that met our eligibility criteria.

Result

616 patients were included. Prevalence of cardiac involvement varied from 13% to 65% depending on patient selection and method used for detection. Pericarditis was the most common cardiac diagnosis with a prevalence of 30% and 43% in two prospective studies. Non-invasive cardiac tests, including electrocardiogram and echocardiogram, detected subclinical cardiac abnormalities in 6%–38% of patients. These abnormalities included conduction abnormalities, pericardial effusion and mitral valve prolapse. Diastolic dysfunction and accelerated atherosclerosis were well-documented in a case–control study. Three prospective studies revealed an overall mortality of 10.4% over the period of follow-up of 13–15 years. 20% of the mortality was directly attributable to cardiac cause.

Conclusion

Cardiac involvement was common among patients with MCTD though the involvement was often clinically inapparent. Non-invasive cardiac tests might have a role for subclinical disease screening for early diagnosis and timely treatment as cardiac involvement was one of the leading causes of mortality.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号