Abstract:
:An association between vasectomy and the development of testicular tumors, and the importance of testicular examinations both before and after a vasectomy is discussed. Patients diagnosed with testicular tumors within the last ten years were examined at Bangour General Hospital in Scotland. From 1977-87, 37 patients under age 60 were detected with testicular tumors. 3079 men underwent a vasectomy during this time. 8 were diagnosed with the tumors. Average time between the vasectomy and the diagnosis of the tumors was 1-9 years. The number of cases in men aged 20-59, and the age specific incidence were calculated from population on figures. Incidences of tumors, combined with the number of patient years of risk contained in the group who underwent a vasectomy, were used to ascertain the expected number of tumors in the 1-9 year group. Observed number was 8. As result, the ratio for patients with a vasectomy was 4.2 (95% confidence interval 1.8 to 8.2) with absolute annual incidence of testicular tumor in men who had had a vasectomy at 53/100000 men. Further suggested is that vasectomy accelerates the incidence of a palpable tumor from a carcinoma in situ, or possibly that tumors are often overlooked during a vasectomy. An examination before a vasectomy should detect palpable tumors, with carcinomas being detected by cytological examination of semen. Men should be screened by examination 12-18 months after a vasectomy. In light of the growing popularity of vasectomy as a more accepted means of contraception, how vasectomy affects the etiology of testicular malignancy is an important issue.
journal_name
BMJjournal_title
BMJ (Clinical research ed.)authors
Cale AR,Farouk M,Prescott RJ,Wallace IWdoi
10.1136/bmj.300.6721.370subject
Has Abstractpub_date
1990-02-10 00:00:00pages
370issue
6721eissn
0959-8138issn
1756-1833journal_volume
300pub_type
杂志文章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:OBJECTIVE:To evaluate the immunogenicity and reactogenicity of a new triple S recombinant hepatitis B vaccine in a cohort of healthy people in whom currently licensed hepatitis B vaccines had persistently not induced an immune response. DESIGN:Single centre, randomised, double blind, dose-response study. SETTING:Rese...
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.314.7077.329
更新日期:1997-02-01 00:00:00
abstract::Objective To improve the selection of patients with acute ischaemic stroke for intra-arterial treatment using a clinical decision tool to predict individual treatment benefit.Design Multivariable regression modelling with data from two randomised controlled clinical trials.Setting 16 hospitals in the Netherlands (deri...
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.j1710
更新日期:2017-05-03 00:00:00
abstract:OBJECTIVE:To describe the characteristics at birth of children conceived by in vitro fertilisation (IVF) or by gamete intrafallopian transfer (GIFT) and to assess whether they differ from those of children conceived naturally. DESIGN:Survey of children resulting from IVF or GIFT and comparison of their characteristics...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.300.6734.1229
更新日期:1990-05-12 00:00:00
abstract:OBJECTIVE:To assess and compare the accuracy of visual inspection with acetic acid (VIA), visual inspection with Lugol's iodine (VILI), and human papillomavirus (HPV) testing as alternative standalone methods for primary cervical cancer screening in sub-Saharan Africa. DESIGN:Systematic review and meta-analysis of dia...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bmj.h3084
更新日期:2015-07-03 00:00:00
abstract:OBJECTIVE:To assess the risk of pulmonary embolism, ischaemic stroke, and myocardial infarction associated with combined oral contraceptives according to dose of oestrogen (ethinylestradiol) and progestogen. DESIGN:Observational cohort study. SETTING:Data from the French national health insurance database linked with...
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pub_type: 评论,杂志文章
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更新日期:2016-05-10 00:00:00
abstract:OBJECTIVES:To compare patients' preference for transdermal fentanyl or sustained release oral morphine, their level of pain control, and their quality of life after treatment. DESIGN:Randomised, multicentre, international, open label, crossover trial. SETTING:35 centres in Belgium, Canada, Denmark, Finland, the Unite...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1136/bmj.322.7295.1154
更新日期:2001-05-12 00:00:00
abstract:OBJECTIVE:To study the relation between low walking speed and the risk of death in older people, both overall and with regard to the main causes of death. DESIGN:Prospective cohort study. SETTING:Dijon centre (France) of the Three-City study. PARTICIPANTS:3208 men and women aged >or=65 living in the community, recru...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究
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更新日期:2009-11-10 00:00:00
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journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.302.6771.262
更新日期:1991-02-02 00:00:00
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journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
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更新日期:1995-07-29 00:00:00
abstract:OBJECTIVE:To assess the effects of Helicobacter pylori treatment, vitamin supplementation, and garlic supplementation in the prevention of gastric cancer. DESIGN:Blinded randomized placebo controlled trial. SETTING:Linqu County, Shandong province, China. PARTICIPANTS:3365 residents of a high risk region for gastric ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.l5016
更新日期:2019-09-11 00:00:00
abstract::This paper examines the impact of marital status on maternal mortality in the period before and the period after German reunification in the area covered by the former East Germany. Maternal mortality ratio prior to the reunification was stable and declined after reunification. This can be attributed to the adoption ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.319.7217.1104
更新日期:1999-10-23 00:00:00
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journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析
doi:10.1136/bmj.l6202
更新日期:2019-12-18 00:00:00
abstract:OBJECTIVE:To quantify the association between stressful life events and exacerbations of multiple sclerosis. DATA SOURCES:PubMed, PsychInfo, and Psychological Abstracts searched for empirical papers from 1965 to February 2003 with terms "stress", "trauma", and "multiple sclerosis". REVIEW METHODS:Three investigators ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bmj.38041.724421.55
更新日期:2004-03-27 00:00:00
abstract:OBJECTIVE:To analyse the relation between treated blood pressure and concomitant risk factor and morbidity from acute myocardial infarction. DESIGN:Prospective longitudinal study. Treated blood pressures and other variables were used to predict acute myocardial infarction. SETTING:Primary health care in Skaraborg, Sw...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.308.6930.681
更新日期:1994-03-12 00:00:00
abstract:OBJECTIVE:To prepare and assess the sensitivity and specificity of a latex agglutination test specific for the serotype of antigen in diagnosing pneumococcal pneumonia in Gambian children. DESIGN:Comparison of agglutination test specific for serotype with culture of blood and lung aspirates, countercurrent immunoelect...
journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章
doi:10.1136/bmj.298.6680.1061
更新日期:1989-04-22 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
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journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究
doi:10.1136/bmj.a1720
更新日期:2008-10-01 00:00:00
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journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.f5473
更新日期:2013-10-28 00:00:00
abstract:OBJECTIVE:To assess the implementation of action protocols dictated by antenatal risk factors noted at the initial (booking) antenatal visit. DESIGN:Retrospective study of 2000 women delivered between 1 March 1990 and 29 March 1991. SETTING:Maternity department of a district general hospital supporting a multiethnic ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.305.6863.1184
更新日期:1992-11-14 00:00:00
abstract:OBJECTIVE:To measure the prevalence of breast feeding and to examine the value of using information collected on Guthrie cards (used for detecting inherited metabolic disease and hypothyroidism when newborn infants are 7 days old) to calculate this prevalence. DESIGN:Analysis, by geographical area and maternity unit, ...
journal_title:BMJ (Clinical research ed.)
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doi:10.1136/bmj.308.6932.824
更新日期:1994-03-26 00:00:00
abstract:OBJECTIVES:To assess and improve the quality of care provided to women undergoing induced abortion. DESIGN:Two rounds of prospective, criterion based case note review audit. SETTING:Ten NHS gynaecology units throughout Scotland. SUBJECTS:2004 patient episodes of abortion care identified consecutively during two roun...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究
doi:10.1136/bmj.309.6946.15
更新日期:1994-07-02 00:00:00
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journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.315.7099.18
更新日期:1997-07-05 00:00:00
abstract:OBJECTIVE:To evaluate the association between use of hormone replacement therapy and the risk of idiopathic venous thromboembolism. DESIGN:Population based case-control study. SETTING:Population enrolled in the General Practice Research Database, United Kingdom. SUBJECTS:A cohort of 347,253 women aged 50 to 79 witho...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.314.7083.796
更新日期:1997-03-15 00:00:00
abstract:OBJECTIVES:To examine the concerns of singlehanded general practitioners working in an inner London area and to compare the views of general practitioners in partnerships. DESIGN:Qualitative analysis of semistructured interviews with a random sample of singlehanded general practitioners and a sample of general practit...
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更新日期:1993-09-04 00:00:00
abstract:OBJECTIVE:To compare the risk profile of women receiving public and private obstetric care and to compare the rates of obstetric intervention among women at low risk in these groups. DESIGN:Population based descriptive study. SETTING:New South Wales, Australia. SUBJECTS:All 171,157 women having a live baby during 19...
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doi:10.1136/bmj.321.7254.137
更新日期:2000-07-15 00:00:00
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pub_type: 杂志文章,评审
doi:10.1136/bmj.324.7331.198
更新日期:2002-01-26 00:00:00
abstract:OBJECTIVE:To evaluate the effectiveness of neuromuscular training in reducing the rate of acute knee injury in adolescent female football players. DESIGN:Stratified cluster randomised controlled trial with clubs as the unit of randomisation. SETTING:230 Swedish football clubs (121 in the intervention group, 109 in th...
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pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.e3042
更新日期:2012-05-03 00:00:00
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pub_type: 杂志文章
doi:10.1136/bmj.c4978
更新日期:2010-10-04 00:00:00
abstract:OBJECTIVE:To compare patient outcomes of restrictive versus liberal blood transfusion strategies in patients with cardiovascular disease not undergoing cardiac surgery. DESIGN:Systematic review and meta-analysis. DATA SOURCES:Randomised controlled trials involving a threshold for red blood cell transfusion in hospita...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bmj.i1351
更新日期:2016-03-29 00:00:00