You don't need to be signed in to read BMJ Blogs, but you can register here to receive updates about other BMJ products and services via our site.

Trigeminal neuralgia – gaps in evidence

14 May, 15 | by BMJ Clinical Evidence

by Joanna M. Zakrzewska and Mark E. Linskey

Trigem imageTrigeminal neuralgia is a rare condition that causes excruciating intermittent short-lasting, usually unilateral facial pain especially provoked by light touch.
Although the criteria for diagnosis appear to be clear cut, there have been no case control studies to validate them, and there is no cohort data on progression of the disorder. This is especially important as—while the disorder is generally progressive over time—in more than 50% of cases this progression is interspersed with unpredictable remissions that can last 6 months or longer. more…

A brief introduction to the concept of Evidence-Based Research

7 May, 15 | by BMJ Clinical Evidence


by Hans Lund

The scientific ideal
On 15th of February 1676, in a letter to his colleague (and rival) Robert Hooke, Sir Isaac Newton wrote the following well-known sentence: “If I have seen farther it is by standing on the shoulders of giants”. Newton referred to influential scientists before him such as Copernicus, Galilei and Kepler and emphasised one of the fundamental aspects of science – science is cumulative with each new discovery dependent on previous knowledge. more…

The way forward from ‘rubbish’ to ‘real’ EBM in the wake of Evidence Live 2015

24 Apr, 15 | by BMJ Clinical Evidence

by Huw LlewelynHuw Llewelyn

At Evidence Live, Iona Heath (video) reminded us that EBM should not interfere with wisdom and common sense. Trish Greenhalgh (video) gave a hilarious example of ‘rubbish EBM’ when a ‘falls protocols for elders’ was invoked after she went over her bicycle handlebars at speed! The answer is to arrive at initial impressions and decisions based on one’s current knowledge and then AFTERWARDS to check them against transparent reasoning and evidence. more…

Addressing gaps in evidence

9 Apr, 15 | by BMJ Clinical Evidence

?????????????????????????????????????????????????????????????????????????Evidence-based medicine (EBM) is an approach that—in addition to clinical experience and patient preferences—takes into account existing research evidence to draw conclusions on the best approach for the care of individual patients. It is a key tool for clinical decision making as the need to balance research, new tests and treatments, and available resources with clinical experience and patient requirements continues to be an important focus in healthcare. more…

BMJ Clinical Evidence Blog homepage

BMJ Clinical Evidence

Clinical Evidence is a database of systematic overviews on the effectiveness of key interventions, together with tools and resources to learn and practise EBM. Visit site

Creative Comms logo

BMJ Clinical Evidence latest news

BMJ Clinical Evidence latest news