Abstract:
OBJECTIVE:To assess the ability of ultrasonography to identify reflux nephropathy in children after urinary tract infection. DESIGN:Ten experienced radiologists performed a total of 240 ultrasonographic examinations of kidneys in a one day study. The examiners were unaware of the results of previous radiological and clinical examinations and of the proportions of normal and abnormal kidneys. Urography was used as method of reference, supported by static renal scintigraphy (dimercaptosuccinic acid labelled with technetium-99m) in half of the cases. SETTING:Outpatient radiology department. SUBJECTS:25 children aged 2-16 years (20 kidneys with and 30 kidneys without renal scarring). MAIN OUTCOME MEASURES:Renal scarring. Overall size and length of kidneys. Sensitivity and specificity including receiver operator characteristics and variation between observers. RESULTS:With renal scarring as the diagnostic criterion and including cases classified as abnormal, probably abnormal, and uncertain the sensitivity of ultrasonography was 54% (specificity 80%). Addition of reduced renal size as a diagnostic criterion increased the sensitivity to 64% (specificity 79%). There were, however, wide variations between observers, with sensitivity ranging between 40% and 90% (specificity 94% to 65%). CONCLUSIONS:Because of its low sensitivity and specificity and poor agreement between observers, ultrasonography cannot be generally recommended for the detection of reflux nephropathy after urinary tract infection in children.
journal_name
BMJjournal_title
BMJ (Clinical research ed.)authors
Stokland E,Hellström M,Hansson S,Jodal U,Odén A,Jacobsson Bdoi
10.1136/bmj.309.6949.235subject
Has Abstractpub_date
1994-07-23 00:00:00pages
235-9issue
6949eissn
0959-8138issn
1756-1833journal_volume
309pub_type
杂志文章abstract::South African Health Minister Dr. Manto Tshabalala-Msimang was accused of human rights abuse for refusing to supply zidovudine to all HIV-positive pregnant women. The accusations were laid by Dr. Costa Gazi, a South African doctor employed in the state health system with the Human Rights Commission. Dr. Gazi believe...
journal_title:BMJ (Clinical research ed.)
pub_type: 新闻
doi:
更新日期:2000-01-29 00:00:00
abstract:OBJECTIVE:To determine the effect of four monthly vitamin D supplementation on the rate of fractures in men and women aged 65 years and over living in the community. DESIGN:Randomised double blind controlled trial of 100 000 IU oral vitamin D3 (cholecalciferol) supplementation or matching placebo every four months ove...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1136/bmj.326.7387.469
更新日期:2003-03-01 00:00:00
abstract:OBJECTIVE:To determine whether use of tinzaparin, a low molecular weight heparin introduced for prophylactic management of deep vein thrombosis, increases the risk of serious postoperative bleeding leading to a higher than expected 28 day readmission rate after discharge for hysterectomy. DESIGN:Retrospective case-con...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.38783.624444.55
更新日期:2006-04-08 00:00:00
abstract:OBJECTIVE:To define the benefit of rice oral rehydration salts solution in relation to the glucose based World Health Organisation oral rehydration salts solution for treating and preventing dehydration in patients with severe dehydrating diarrhoea. DESIGN:Meta-analysis using data from 13 available randomised trials t...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析
doi:10.1136/bmj.304.6822.287
更新日期:1992-02-01 00:00:00
abstract:OBJECTIVE:To increase understanding of how the prison environment influences the mental health of prisoners and prison staff. DESIGN:Qualitative study with focus groups. SETTING:A local prison in southern England. PARTICIPANTS:Prisoners and prison staff. RESULTS:Prisoners reported that long periods of isolation wit...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.327.7413.480
更新日期:2003-08-30 00:00:00
abstract::Preparing a review entails many judgments. The focus of the review must be decided. Studies that are relevant to the focus of the review must be identified, selected for inclusion and critically appraised. Information must be collected and synthesised from the relevant studies, and conclusions must be drawn. Checklist...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.309.6955.648
更新日期:1994-09-10 00:00:00
abstract:OBJECTIVE:To observe the effects of stimulation of the sacral anterior roots on anorectal and low colonic pressures and to programme implanted stimulators to produce defecation. DESIGN:Prospective study of 12 consecutive patients. SETTING:Spinal injuries unit and university gastrointestinal physiology department. PA...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.300.6738.1494
更新日期:1990-06-09 00:00:00
abstract:OBJECTIVE:To examine the associations between neuraxial anaesthesia or general anaesthesia and clinical outcomes, length of hospital stay, and readmission in adults undergoing lower limb revascularisation surgery. DESIGN:Comparative effectiveness study using linked, validated, population based databases. SETTING:Onta...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.m4104
更新日期:2020-11-25 00:00:00
abstract:OBJECTIVE:To assess the association of lichen planus with liver complaints and with known aetiological factors of liver diseases. DESIGN:Multicentre case-control study. Interviews were conducted by trained medical investigators on the basis of a structured questionnaire. At the interview patients and controls were ask...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1136/bmj.300.6719.227
更新日期:1990-01-27 00:00:00
abstract:OBJECTIVES:To determine the impact on teenage pregnancy of interventions that address the social disadvantage associated with early parenthood and to assess the appropriateness of such interventions for young people in the United Kingdom. DESIGN:Systematic review, including a statistical meta-analysis of controlled tr...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bmj.b4254
更新日期:2009-11-12 00:00:00
abstract:OBJECTIVE:To investigate estimation of calorie (energy) content of meals from fast food restaurants in adults, adolescents, and school age children. DESIGN:Cross sectional study of repeated visits to fast food restaurant chains. SETTING:89 fast food restaurants in four cities in New England, United States: McDonald's...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.f2907
更新日期:2013-05-23 00:00:00
abstract::Recent changes in the Russian government introduced by Boris Yeltsin include the appointment of Eduard Nechaev as health minister at the beginning of this year. The appointment received little publicity in the West, although his predecessor was sacked after only one year for failing to make any effort to improve healt...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.306.6882.909
更新日期:1993-04-03 00:00:00
abstract::The first call for applications to the NHS research and development programme on the interface between primary and secondary care was advertised in February 1994. A total of 674 outline proposals were submitted and 54 (8%) secured funding. Projects have been commissioned in 16 of the 21 priority areas and around 6m po...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.311.7012.1080
更新日期:1995-10-21 00:00:00
abstract:OBJECTIVE:To determine whether the author's 20.9 lb (9.5 kg) carbon frame bicycle reduced commuting time compared with his 29.75 lb (13.5 kg) steel frame bicycle. DESIGN:Randomised trial. SETTING:Sheffield and Chesterfield, United Kingdom, between mid-January 2010 and mid-July 2010. PARTICIPANTS:One consultant in an...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.c6801
更新日期:2010-12-09 00:00:00
abstract:OBJECTIVE:To determine how changes in the number of admissions from waiting lists and changes in the number of additions to the lists are related to list size and waiting times, in the context of local waiting list initiatives. DESIGN:Review of national and Körner statistics. SETTING:England (1987-94) and districts o...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.311.7008.783
更新日期:1995-09-23 00:00:00
abstract:OBJECTIVES:To identify factors that differentiate between effective and ineffective computerised clinical decision support systems in terms of improvements in the process of care or in patient outcomes. DESIGN:Meta-regression analysis of randomised controlled trials. DATA SOURCES:A database of features and effects of...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析
doi:10.1136/bmj.f657
更新日期:2013-02-14 00:00:00
abstract:OBJECTIVES:To describe the change in first day infant mortality during 1935-87. To examine the hypothesis that excess first day mortality in the 1950s and 1960s was attributable to restricting oxygen for sick newborn infants. DESIGN:Time series analysis of first day infant mortality and stillbirth rates. SETTING:Engl...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.304.6823.343
更新日期:1992-02-08 00:00:00
abstract:OBJECTIVE:To determine the relative importance of appropriate prescribing for asthma in explaining high rates of hospital admission for asthma among east London general practices. DESIGN:Poisson regression analysis describing relation of each general practice's admission rates for asthma with prescribing for asthma an...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.314.7079.482
更新日期:1997-02-15 00:00:00
abstract:OBJECTIVE:To assess long term survival (> 5 years) and quality of life in severely ill patients referred for urgent cardiac transplantation. SETTING:Tertiary referral centres: before transplantation at the National Heart Hospital (late 1984 to end 1986); after transplantation at Harefield Hospital. SUBJECTS:Eighteen ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.306.6870.98
更新日期:1993-01-09 00:00:00
abstract:OBJECTIVE:To determine if the macrolide clarithromycin affects mortality and cardiovascular morbidity in patients with stable coronary heart disease. DESIGN:Centrally randomised multicentre trial. All parties at all stages were blinded. Analyses were by intention to treat. SETTING:Five Copenhagen University cardiolog...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1136/bmj.38666.653600.55
更新日期:2006-01-07 00:00:00
abstract:OBJECTIVE:To evaluate the impact of the revised diagnostic criteria for diabetes mellitus adopted by the American Diabetes Association on prevalence of diabetes and on classification of patients. For epidemiological purposes the American criteria use a fasting plasma glucose concentration >=7.0 mmol/l in contrast with ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.317.7155.371
更新日期:1998-08-08 00:00:00
abstract:OBJECTIVE:To study the circumstances of dog bites and identify risk factors. DESIGN:Postal questionnaire survey and case note review of victims of dog bites referred between 1982 and 1989. SETTING:One referral based regional plastic surgery unit. PATIENTS:146 consecutive patients referred for primary treatment of do...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.303.6816.1512
更新日期:1991-12-14 00:00:00
abstract:OBJECTIVE: To compare the effectiveness of flexible sigmoidoscopy in screening for colorectal cancer by patient sex and age. DESIGN: Pooled analysis of randomised trials (the US Prostate, Lung, Colorectal and Ovarian cancer screening trial (PLCO), the Italian Screening for Colon and Rectum trial (SCORE), and the Norwe...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析
doi:10.1136/bmj.i6673
更新日期:2017-01-13 00:00:00
abstract:OBJECTIVE:To determine whether inhaled salmeterol, a new long acting inhaled beta adrenergic agonist, reduces nocturnal bronchoconstriction and improves sleep quality in patients with nocturnal asthma. DESIGN:Randomised, double blind, placebo controlled crossover study. SETTING:Hospital outpatient clinics in Edinburg...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1136/bmj.301.6765.1365
更新日期:1990-12-15 00:00:00
abstract::Objectives To estimate the short term effect of particulate air pollution (particle diameter <10 μm, or PM10) on mortality and explore the heterogeneity of particulate air pollution effects in major cities in China.Design Generalised linear models with different lag structures using time series data.Setting 38 of the ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.j667
更新日期:2017-03-14 00:00:00
abstract::In prospective studies, the prevalence of undiagnosed subclinical hypothyroidism in pregnant women ranges from 3% to 15%. Subclinical hypothyroidism is associated with multiple adverse outcomes in the mother and fetus, including spontaneous abortion, pre-eclampsia, gestational hypertension, gestational diabetes, prete...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.g4929
更新日期:2014-10-06 00:00:00
abstract::Chronic insomnia is a common condition that affects people worldwide and has negative effects on patients' health and wellbeing. The treatment of insomnia can be complex and time consuming for patients and providers. Although behavioral interventions are the first line therapy, there are barriers to access for these t...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
doi:10.1136/bmj.i2123
更新日期:2016-07-06 00:00:00
abstract:OBJECTIVE:To investigate the risk of glioma in adults in relation to mobile phone use. DESIGN:Population based case-control study with collection of personal interview data. SETTING:Five areas of the United Kingdom. PARTICIPANTS:966 people aged 18 to 69 years diagnosed with a glioma from 1 December 2000 to 29 Februa...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究
doi:10.1136/bmj.38720.687975.55
更新日期:2006-04-15 00:00:00
abstract:OBJECTIVE:To examine the impact of antenatal supplementation with multiple micronutrients or iron and folic acid compared with folic acid alone on birth weight, duration of gestation, and maternal haemoglobin concentration in the third trimester. DESIGN:Cluster randomised double blind controlled trial. SETTING:Two ru...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1136/bmj.a2001
更新日期:2008-11-07 00:00:00
abstract:OBJECTIVES:To estimate the amount spent on specific hospital care by health agencies in 1993-4 and compare it with the resources allocated to patients registered with fundholding practices for the same type of care. To investigate whether fundholding practices and health agencies pay different amounts for inpatient car...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.309.6946.30
更新日期:1994-07-02 00:00:00