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 obtain information about the computerisation of general practice in Wales, and to enable more effective planning of educational provision for doctors and other primary health care workers. DESIGN:Postal questionnaire sent to all general practices in Wales. SUBJECTS:553 general practices, of which 401 (73...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.303.6794.93
更新日期:1991-07-13 00:00:00
abstract::A study was performed to assess whether the existing differential capitation fees for general practitioners accurately assess differential workloads. Data from the third morbidity study in general practice were used to compare capitation fees with relative workload in differing age and sex groups. The population mix w...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.297.6654.966
更新日期:1988-10-15 00:00:00
abstract:OBJECTIVE:To estimate the impact of a national primary care pay for performance scheme, the Quality and Outcomes Framework in England, on emergency hospital admissions for ambulatory care sensitive conditions (ACSCs). DESIGN:Controlled longitudinal study. SETTING:English National Health Service between 1998/99 and 20...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
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更新日期:2014-11-11 00:00:00
abstract:OBJECTIVE:To investigate socioeconomic variation among young women in the risk of hospital admission for diseases (including neoplasms) of the female genital system and breast and for the common surgical procedures of dilatation and curettage and hysterectomy. DESIGN:Large nationally representative cohort study with i...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.311.7009.840
更新日期:1995-09-30 00:00:00
abstract:OBJECTIVE:To assess whether a raised serum troponin T concentration would be an independent predictor of death in patients with an acute ischaemic stroke. DESIGN:Observational study. SETTING:Auckland Hospital, Auckland, New Zealand. SUBJECTS:All 181 patients with an acute ischaemic stroke admitted over nine months i...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.320.7248.1502
更新日期:2000-06-03 00:00:00
abstract:OBJECTIVES:To assess whether and how investigators of placebo controlled randomised trials inform participants of their treatment allocation at trial closure and to assess barriers to feedback. DESIGN:Postal survey with a semistructured questionnaire. PARTICIPANTS:All investigators who published a placebo controlled ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.325.7376.1329
更新日期:2002-12-07 00:00:00
abstract:OBJECTIVE:To review the evidence for ethnic differences in susceptibility to adverse drug reactions (ADRs) to cardiovascular drugs. DESIGN:Systematic review and meta-analysis. DATA SOURCES:We searched Medline and Embase to March 2005. Reference lists of identified articles were hand searched for further relevant arti...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,meta分析,评审
doi:10.1136/bmj.38803.528113.55
更新日期:2006-05-20 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 examine whether the risk of breast cancer is increased by a recent term pregnancy. DESIGN:Population based case-control study. SETTING:Eight areas in the United States. SUBJECTS:Cases were 2279 multiparous women residents of the eight areas aged 25-49 who were diagnosed as having breast cancer during 19...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.308.6945.1672
更新日期:1994-06-25 00:00:00
abstract::Objective To determine the efficacy of low intensity pulsed ultrasound (LIPUS) for healing of fracture or osteotomy.Design Systematic review and meta-analysis.Data sources Medline, Embase, CINAHL, Cochrane Central Register of Controlled Trials, and trial registries up to November 2016.Study selection Randomized contro...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,评审
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更新日期:2017-02-22 00:00:00
abstract:OBJECTIVE:To investigate the facilities for inpatient care of mentally disordered people in prison. DESIGN:Semistructured inspections conducted by doctor and nurse. Expected standards were based on healthcare quality standards published by the Prison Service or the NHS. SETTING:13 prisons with inpatient beds in Engla...
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:2000-04-15 00:00:00
abstract:OBJECTIVES:To assess whether supplementation with antioxidants, folinic acid, or both improves the psychomotor and language development of children with Down's syndrome. DESIGN:Randomised controlled trial with two by two factorial design. SETTING:Children living in the Midlands, Greater London, and the south west of ...
journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2008-03-15 00:00:00
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journal_title:BMJ (Clinical research ed.)
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更新日期:1996-12-07 00:00:00
abstract:OBJECTIVE:To determine the association of resting echocardiography before elective intermediate to high risk non-cardiac surgery with survival and length of hospital stay. DESIGN:Population based retrospective cohort study. SETTING:Acute care hospitals in Ontario, Canada, between 1 April 1999 and 31 March 2008. PART...
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更新日期:2011-06-30 00:00:00
abstract::Monocycline is the most widely prescribed systemic antibiotic for acne largely because it needs to be given only once or twice a day and seems not to induce resistance. Up to April 1994 11 cases of minocycline induced systemic lupus erythematosus and 16 cases of hepatitis had been reported to the Committee on Safety o...
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pub_type: 杂志文章
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更新日期:1996-01-20 00:00:00
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更新日期:1990-10-06 00:00:00
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更新日期:2019-03-27 00:00:00
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pub_type: 杂志文章,随机对照试验
doi:10.1136/bmj.b4609
更新日期:2009-12-03 00:00:00
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journal_title:BMJ (Clinical research ed.)
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1988-11-05 00:00:00
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journal_title:BMJ (Clinical research ed.)
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更新日期:2007-07-14 00:00:00
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journal_title:BMJ (Clinical research ed.)
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更新日期:1988-11-26 00:00:00
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journal_title:BMJ (Clinical research ed.)
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更新日期:1999-05-22 00:00:00
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更新日期:2016-06-07 00:00:00
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更新日期:2011-01-04 00:00:00
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journal_title:BMJ (Clinical research ed.)
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更新日期:2009-04-21 00:00:00
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更新日期:2006-04-08 00:00:00
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journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.313.7057.595
更新日期:1996-09-07 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:1989-03-11 00:00:00
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journal_title:BMJ (Clinical research ed.)
pub_type: 杂志文章
doi:10.1136/bmj.d1672
更新日期:2011-03-30 00:00:00