Abstract:
:Lumbar spinal stenosis is a common degenerative disorder of the spine in elderly patients that can be effectively treated with decompression surgery in some patients. Radiological findings in the diagnostic work-up of the patients do not always correlate well with clinical symptoms, and guidance about when to proceed to surgery is inconsistent. The recently described Nerve Root Sedimentation Sign in magnetic resonance scans has been shown to discriminate well between selected patients with and without lumbar spinal stenosis, but the performance of this new test, when used in a broad patient population, is not yet known. We describe the design of a single-centre retrospective chart review to assess the clinical validity of the Sedimentation Sign by evaluating its association with health outcomes in patients with suspected lumbar spinal stenosis. The Sedimentation Sign will be cross-classified with decisions for surgery based on existing tests and patient outcomes in follow-up examinations at 24months. The results will be used to estimate: i) how well the Sedimentation Sign can distinguish between patients that do or do not benefit from surgery, and ii) the concordance between the Sedimentation Sign and existing tests to explore its possible value as a triage test. This study design will provide data to estimate the potential benefits and harms of using the Sedimentation Sign to guide surgical decisions. The observed proportion of discordant test results will help inform the design of future randomised controlled trials of the Sedimentation Sign.
journal_name
Contemp Clin Trialsjournal_title
Contemporary clinical trialsauthors
Staub LP,Barz T,Melloh M,Lord SJ,Chatfield M,Bossuyt PMdoi
10.1016/j.cct.2011.01.015subject
Has Abstractpub_date
2011-05-01 00:00:00pages
470-4issue
3eissn
1551-7144issn
1559-2030pii
S1551-7144(11)00042-5journal_volume
32pub_type
杂志文章abstract:BACKGROUND:Despite controversy about paying research subjects, little is known about actual practices in the U.S., including what type of studies offer payment, to what type of subjects, and how amounts are determined. OBJECTIVE:To document current U.S. practices regarding payment to research subjects. METHODS:The pr...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2005.02.003
更新日期:2005-06-01 00:00:00
abstract:BACKGROUND:We evaluated the association of demographic and clinical characteristics with participation in an epidemiologic study of diabetes mellitus among youth. METHODS:SEARCH for Diabetes in Youth is a multicenter study of physician-diagnosed diabetes in youth under the age of 20 comprising a surveillance and a coh...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,多中心研究
doi:10.1016/j.cct.2008.05.008
更新日期:2008-11-01 00:00:00
abstract::Phase IIA clinical trials are commonly conducted as pilot studies to evaluate efficacy and safety in selected populations of patients with the disease or condition to be treated or prevented. The efficacy objective is to find preliminarily evidence of the effectiveness or ineffectiveness of study treatments. Go/no-go ...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2012.07.006
更新日期:2012-11-01 00:00:00
abstract:BACKGROUND:Basic research suggests that rapid increases in circulating inflammatory and hemostatic blood markers may trigger or indicate impending plaque rupture and coronary thrombosis, resulting in acute ischemic heart disease (IHD) events. However, these associations are not established in humans. METHODS AND RESUL...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2014.03.009
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:Low back pain (LBP) is one of the most common reasons for seeking medical care. Manipulative therapies are a common treatment for LBP. Few studies have compared the effectiveness of different types of manipulative therapies. Moreover, the physiologic mechanisms underlying these treatments are not fully under...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2018.05.012
更新日期:2018-07-01 00:00:00
abstract:PURPOSE:By 2020, 70% of people living with HIV in the United States will be greater than 50 years of age. As many as 37% of sexually active older people living with HIV (OPLWH) engage in HIV transmission sexual behaviors. In spite of repeated calls for secondary prevention interventions to reduce condomless sex in OPLW...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2020.106047
更新日期:2020-08-01 00:00:00
abstract:PURPOSE:Black breast cancer survivors have high rates of obesity and low physical activity levels. Little is known about the acceptability and feasibility of interventions in this population. OBJECTIVE:A two-arm RCT was launched to assess the efficacy of a culturally targeted 12-week multimodal lifestyle intervention ...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2015.12.005
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Primary and secondary progressive multiple sclerosis (MS), collectively called progressive multiple sclerosis (PMS), is characterized by gradual progression of disability. The current anti-inflammatory treatments for MS have little or no efficacy in PMS in the absence of obvious active inflammation. Optimal ...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2016.08.009
更新日期:2016-09-01 00:00:00
abstract::Parents of young children with type 1 diabetes (T1D) experience unique, developmental challenges in managing their child's T1D, resulting in psychosocial distress. Only a small portion of young children reach glucose goals and adherence to diabetes devices that help improve T1D management have historically been low in...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2019.05.008
更新日期:2019-07-01 00:00:00
abstract::Despite strong anti-smoking efforts, at least 12% of American women cannot quit smoking when pregnant resulting in >450,000 smoke-exposed infants born yearly. Smoking during pregnancy is the largest preventable cause of childhood respiratory illness including wheezing and asthma. Recent studies have shown a protective...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2017.05.008
更新日期:2017-07-01 00:00:00
abstract:BACKGROUND:Despite significant advancements in psychopharmacology, treating major depressive disorder (MDD) is still a challenge considering the efficacy, tolerability, safety, and economical costs of most antidepressant drugs. One approach that has been increasingly investigated is modulation of cortical activity with...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2010.09.007
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Currently, there is no consensus regarding the best treatment option in recurrent haemorrhoidal disease (HD), due to a lack of solid evidence. The Napoleon trial aims to provide high-level evidence on the comparative effectiveness and cost-effectiveness of repeat rubber band ligation (RBL) versus sutured muc...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2020.106177
更新日期:2020-12-01 00:00:00
abstract:BACKGROUND:Management of asthma involves adherence to medication regimens. Assessing adherence is difficult for health care providers and researchers. Self-reported medication use is subjective, so objective methods of data collection for medication use are frequently used in asthma research. The aim of this project is...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2007.05.002
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVE:To explore a better administration way through comparison of the pharmacodynamics of cisatracurium administered by continuous infusion or intermittent bolus injection. METHODS:Thirty patients (ASAI-II) who had no neuromuscular disease and underwent selective surgery under general anesthesia were randomly div...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2012.01.002
更新日期:2012-05-01 00:00:00
abstract::Chronic insomnia disorder is a prevalent condition and a significant proportion of these individuals also have obstructive sleep apnea (OSA). These two sleep disorders have distinct pathophysiology and are managed with different treatment approaches. High comorbidity rates have been a catalyst for emerging studies exa...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2015.12.017
更新日期:2016-03-01 00:00:00
abstract:BACKGROUND:Thousands of people die annually from prescription opioid overdoses; however there are few strategies to ensure patients receive medication risk information at the time of prescribing. OBJECTIVES:To compare the effectiveness of the Emergency Department (ED) Electronic Medication Complete Communication (EMC2...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2017.05.003
更新日期:2017-08-01 00:00:00
abstract::This study was set up to test an ecological intervention using a pragmatic cluster randomised controlled design (RCT) aimed at increasing physical activity (PA) within the community in a deprived inner-city area in the UK. The research will provide a detailed mapping (using Graphical Information Systems GIS) of the en...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2008.03.005
更新日期:2008-09-01 00:00:00
abstract::Researchers have long sought to find combinations of cancer drugs that might achieve synergy. However, while observed in some preclinical tumor models, synergistic effects are rarely seen in clinical trials. In fact, growing evidence in clinical trial data shows that the treatment effect of most approved combination t...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2020.106126
更新日期:2020-11-01 00:00:00
abstract:PURPOSE:To describe the strategies-based on the social triad concept of a partnership of researchers, school personnel and community-employed to recruit low-income, minority parent/caregivers of kindergarten children into a school-based tooth decay prevention trial in the United States. METHODS:The study site was an u...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.cct.2011.09.012
更新日期:2012-01-01 00:00:00
abstract::Dosing is potentially the most important decision that must be made when building or refining behavioral interventions. In this paper, we propose standardized terminology and reporting of dosing information, which would inform intervention development, refinement for dissemination, and systematic reviews of dose-respo...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,评审
doi:10.1016/j.cct.2012.07.011
更新日期:2012-11-01 00:00:00
abstract::Since its introduction in 1974 the use of the term Minimization has been broadened to include other algorithms. All algorithms use patient characteristics to determine the assignment that produces the best overall balance between treatment groups. They differ in whether or not they use all of the data from each previo...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.cct.2009.12.005
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND:Formation of diet and physical activity habits begins during early childhood. However, many preschool-aged children in the United States do not achieve recommendations for a nutritious diet or active lifestyle. Two important spheres of influence, home and child care, could ensure that children receive consis...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2017.11.007
更新日期:2018-01-01 00:00:00
abstract::Pediatric primary care is an important setting in which to address obesity prevention, yet relatively few interventions have been evaluated and even fewer have been shown to be effective. The development and evaluation of cost-effective approaches to obesity prevention that leverage opportunities of direct access to f...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2013.06.017
更新日期:2013-09-01 00:00:00
abstract::In order to better characterize the safety profile of investigational new drugs (INDs) during clinical development, more interest and attention have been paid to ongoing safety monitoring and evaluation. The 2015 US FDA IND safety reporting draft guidance compels sponsors to periodically evaluate unblinded safety data...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2019.06.022
更新日期:2019-08-01 00:00:00
abstract:INTRODUCTION:Cognitive impairment (CI) and cardiovascular disease (CVD) disproportionately affect women compared to men, and CVD increases risk of CI. Physical activity and cognitive training can improve cognition in older adults and may have additive or synergistic effects. However, no combined intervention has target...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2020.106254
更新日期:2020-12-29 00:00:00
abstract:BACKGROUND:Many of the health behaviors known to contribute to cardiometabolic risk and disease (CMRD), including physical activity, diet, sleep, and screen time, begin during childhood. Given the population-wide burden of CMRD, novel ways of assessing risk and providing feedback to support behavior change are needed. ...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2016.07.012
更新日期:2016-07-01 00:00:00
abstract::Major depressive disorder (MDD) is the most common mental illness and the leading cause of disability worldwide. Electroconvulsive therapy (ECT) is the most effective treatment for MDD and the gold-standard therapy for treatment-resistant depression (TRD), yet it remains underutilized due to factors such as limited av...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2018.12.009
更新日期:2019-02-01 00:00:00
abstract::Smokers are at high risk for oral disease. As a result, they represent an important target group for population-level, public oral health promotion efforts. While dental health professionals often address smoking with their patients, no systematic efforts have been made to offer smokers an intervention to improve thei...
journal_title:Contemporary clinical trials
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.cct.2017.04.003
更新日期:2017-06-01 00:00:00
abstract::Double-blinded trials are often considered the gold standard for research, but significant bias may result from unblinding of participants and investigators. Although the CONSORT guidelines discuss the importance of reporting "evidence that blinding was successful", it is unclear what constitutes appropriate evidence....
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2004.11.020
更新日期:2005-02-01 00:00:00
abstract:OBJECTIVE:Characteristics that may influence participation in DNA banks are not well defined. The purpose of this study was to examine characteristics associated with participation in a DNA bank among veterans diagnosed with Amyotrophic Lateral Sclerosis (ALS). METHODS:Veterans who screened eligible for the National R...
journal_title:Contemporary clinical trials
pub_type: 杂志文章
doi:10.1016/j.cct.2007.01.009
更新日期:2007-09-01 00:00:00