Talk Evidence

Talk Evidence - Tramadol, medical harm, and alexa

Welcome back to Talk Evidence - where Helen Macdonald and Carl Heneghan take you through what's happening in the world of Evidence. This month we'll be discussing tramadol being prescripted postoperatively, and a new EBM verdict says that should change(1.36). How much preventable harm does healthcare causes (11.20. A canadian project to help policy makers get the evidence they need (16.55) One of our listeners thinks "Simple" GPs are anything but (28.30) - and we'll be asking Alexa about our health queries. Reading list Treating postoperative pain? Avoid tramadol, long-acting opioid analgesics and long-term use https://ebm.bmj.com/content/early/2019/08/16/bmjebm-2019-111236 Prevalence, severity, and nature of preventable patient harm across medical care settings https://www.bmj.com/content/366/bmj.l4185 Helen Salisbury: “Alexa, can you do my job for me?”

https://www.bmj.com/content/366/bmj.l4719

Talk Evidence - smoking, gloves and transparency

This month we have some more feedback from our listeners (2.20) Carl says it's time to start smoking cessation (or stop the reduction in funding for smoking reduction) (11.40) and marvels at how pretty Richard Doll's seminal smoking paper is. It's gloves off for infection control (22.20) Andrew George, a non-executive director of the Health Research Authority joins us to talk about their consultation on research transparency, and explains how you can get involved (27.04) And we talk about a new tool for rating the transparency of pharma companies (37.40) Reading list: Impact of the WHO Framework Convention on Tobacco Control on global cigarette consumption https://www.bmj.com/content/365/bmj.l2287 Sixty seconds on . . . gloves off https://www.bmj.com/content/366/bmj.l4498 HRA transparency consultation https://www.hra.nhs.uk/about-us/consultations/make-it-public/our-vision-research-transparency/ Sharing of clinical trial data and results reporting practices among large pharmaceutical companies

https://www.bmj.com/content/366/bmj.l4217

Talk Evidence - Z drugs, subclinical hypothyroidism and Drazen’s dozen

This week on the podcast, (2.02) a listener asks, when we suggest something to stop, should we suggest an alternative instead? (8.24) Helen tells us to stop putting people on treatment for subclinical hypothyroidism, but what does that mean for people who are already receiving thyroxine? (20.55) Carl has a black box warning about z drugs, and wonders what the alternative for sleep are. (30.11) Finally the NEJM has published Jeff Drazen's dozen most influential papers - but not a systematic review amongst them. Cue the rant. Reading list: Rapid rec on subclinical hypothyroidism https://www.bmj.com/content/365/bmj.l2006 Temporal trends in use of tests in UK primary care, 2000-15 https://www.bmj.com/content/363/bmj.k4666 Black box warning for z-drugs https://www.bmj.com/content/365/bmj.l2165 Drazen's dozen

https://cdn.nejm.org/pdf/Drazens-Dozen.pdf

Talk Evidence - cancer causing food, prostate cancer and disease definitions

Helen Macdonald and Carl Heneghan are back again talking about what's happened in the world of evidence this month. (1.05) Carl rants about bacon causing cancer (7.10) Helen talks about prostate cancer, and we hear from the author of the research paper which won Research Paper Of The Year at the BMJ awards. We also cover disease definition and a call to have GPs more involved in that process, (24.12)and a new call for papers into conflicts of interest (29.40) Reading list: MRI-Targeted or Standard Biopsy for Prostate-Cancer Diagnosis. https://www.ncbi.nlm.nih.gov/pubmed/29552975?dopt=Abstract Reforming disease definitions: a new primary care led, people-centred approach https://ebm.bmj.com/content/early/2019/04/11/bmjebm-2018-111148 Commercial interests, transparency, and independence: a call for submissions

https://www.bmj.com/content/365/bmj.l1706

Talk Evidence - health checks, abx courses and p-values

Helen Macdonald and Carl Heneghan are back again talking about what's happened in the world of evidence this month. (1.20) Carl grinds his gears over general health checks, with an update in the Cochrane Library. (9.15) Helen is surprised by new research which looks at over prescription of antibiotics - but this time because the courses prescribed are far longer than guidelines suggest. (22.30) What is the true 99th centile of high sensitivity cardiac troponin in hospital patients? (29.02) Is it time to abandon statistical significance and be aware of the problem of the transposed conditional. Reading list: General health checks in adults for reducing morbidity and mortality from disease - https://www.ncbi.nlm.nih.gov/pubmed/30699470?dopt=Abstract Duration of antibiotic treatment for common infections in English primary care -https://www.bmj.com/content/364/bmj.l440 True 99th centile of high sensitivity cardiac troponin for hospital patients - https://www.bmj.com/content/364/bmj.l440 Significant debate - https://www.nature.com/magazine-assets/d41586-019-00874-8/d41586-019-00874-8.pdf The false positive risk: a proposal concerning what to do about p-values - https://www.youtube.com/watch?v=jZWgijUnIxI

http://www.onemol.org.uk/?page_id=456

Talk Evidence - Shoulders, statins and doctors messes

Helen Macdonald and Carl Heneghan are back again talking about what's happened in the world of evidence this month. They start by talking about shoulders - what does the evidence say about treating subacromial pain, and why the potential for a subgroup effect shouldn't change our views about stop surgery (for now, more research needed). (16.00) Statins - more uncertainty about statins, this is now looking at older people. Age is a big risk factor for cardiovascular disease - at what point does that risk overwhelm any potential benefit from taking statins? (20.30)Carl explains his rule-of-thumb for turning relative risks into absolute risks, in a way can help doctors talk to patients about new evidence. (25.46)What's the evidence for doctors messes? Carl's rant of the week focuses on the calls (including the BMJ's campaign) to have spaces for doctors to relax in hospitals. He asks, is that better than putting in a gym? What's the evidence for that. Reading list: Subacromial decompression surgery for adults with shoulder pain https://www.bmj.com/content/364/bmj.l294 Efficacy and safety of statin therapy in older people https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(18)31942-1/fulltext The future of doctor's messes

https://www.bmj.com/content/364/bmj.k5367.abstract

Talk Evidence - Radiation, fertility, and pneumonia

Helen Macdonald and Carl Heneghan are back again talking about what's happened in the world of evidence this month. They start by talking about how difficult a task it is to find evidence that's definitely practice changing, what GPs can learn from Malawian children with nonsevere fast-breathing pneumonia, how radiation dosage varies substantially - and consultant radiologist Amy Davies what that means for patients. They also rail against add-on tests for fertility, and the lack of evidence underpinning their use - will the traffic light system suggested help patients make treatment choices. Carl's rant this week is based on a new study by Steve Woloshin and Lisa Schwartz which documented 20 years of medical marketing in the USA. Reading list: Pneumonia in Malawi - https://www.ncbi.nlm.nih.gov/pubmed/30419120 Variation in radiation dose - https://www.bmj.com/content/364/bmj.k4931 Traffic light fertility tests - https://www.bmj.com/content/364/bmj.l226

Medical marketing - https://jamanetwork.com/journals/jama/fullarticle/2720029

Talk Evidence - Devices and facebook vaccines

In the second of our EBM round-ups, Carl Heneghan, Helen Macdonald and Duncan Jarvies are joined by Deborah Cohen, investigative journalist and scourge of device manufacturers. We're giving our verdict on the sensitivity and specificity of ketone testing for hyperemesis, and the advice to drinking more water to prevent recurrent UTIs in women. Deb joins us to talk about the massive, international, investigation into failing regulation for implantable devices - and shares some of the stories where these have harmed patients. Finally, Carl is excised about antivaxer ads on facebook - but Helen has seen some pro-vaccine ones which are poor science too. Reading list: Diagnostic markers for hyperemesis gravidarum https://www.ncbi.nlm.nih.gov/pubmed/24530975 Effect of Increased Daily Water Intake in Premenopausal Women With Recurrent Urinary Tract Infections https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2705079 The great implant scandle https://www.bbc.co.uk/iplayer/episode/b0btjr55/panorama-the-great-implant-scandal Facebook antivaccine ads

https://www.independent.co.uk/news/uk/home-news/anti-vaccination-antivaxxers-uk-advert-banned-facebook-post-vaccines-kill-babies-a8620831.html