CT scanning is just awful for diagnosing Covid-19

This study, in the same high-tier journal, claims that the sensitivity of CT is 98% vs a sensitivity of 70% for viral PCR. They say: “Our results support the use of chest CT for screening for COVD-19** for patients with clinical and epidemiologic features compatible with COVID-19 infection particularly when RT-PCR testing is negative.” With a statement as strong as that, surely they are saying that they have evidence that CT can be applied broadly? They even mention patients with epidemiological features of infection … that is to say, folks who have been exposed but don’t have symptoms. Here is the patient cohort diagram: We can see we are again looking at only hospitalised patients who underwent CT, so we are likely to be overestimating the sensitivity due to selection bias. But I noticed something else in this paper too – they show us the images for some cases, and some of the images are a bit weird. The image below, which was reported to contain “atypical features of Covid-19” (specifically “small peripheral linear opacities bilaterally”), was a massive red-flag for me. Well, they must be small, because that looks like a normal CT chest  Now, maybe that image was unrepresentative or included by error, but they show this one as well, with a handy arrow: According to this paper, tiny random opacities are now diagnostic of Covid-19. I’m getting snarky here, this is only 2 ...
Source: The Health Care Blog - Category: Consumer Health News Authors: Tags: Artificial Intelligence COVID-19 Health Tech Physicians Research CT Luke Oakden-Rayner Radiology Source Type: blogs

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Publication date: 6 June 2020Source: New Scientist, Volume 246, Issue 3285Author(s): Clare Wilson
Source: New Scientist - Category: Science Source Type: research
Retractions by two of the world ’s leading journals could do lasting harm in an environment where many already distrust scientistsPublic trust in science may have been shaken bythe publication ofacademic papers based on false data in leading medical journals, according to world-renowned infectious disease doctors and former advisers to the World Health Organization.The director of Australia ’s Peter Doherty Institute for Infection and Immunity, Professor Sharon Lewin, said she and her colleagues were “gobsmacked” by the saga and said it should be “a wake-up call” in a global ru...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Medical research Science Infectious diseases Microbiology Coronavirus outbreak Australia news Source Type: news
Authors: Göker H, Aladağ Karakulak E, Demiroğlu H, Ayaz Ceylan ÇM, Büyükaşik Y, Inkaya AÇ, Aksu S, Sayinalp N, Haznedaroğlu IC, Uzun Ö, Akova M, Özcebe OI, Ünal S Abstract BACKGROUND: COVID-19 (Coronavirus Disease of 2019) is an infectious disease outbreak later on declared as a pandemic, caused by the SARS-CoV-2 (severe acute respiratory syndrome coronavirus-2). It spreads very rapidly and can result in severe acute respiratory failure. The clinical studies have shown that advanced age and chronic diseases increase the risk of infection. However, influence of the blo...
Source: Turkish Journal of Medical Sciences - Category: General Medicine Tags: Turk J Med Sci Source Type: research
I ’ve had a fever, a cough and breathlessness since February, and been in and out of hospital. If it isn’t coronavirus, what is it? BySimon HattenstoneI ’m lying in bed, shivering like crazy. My partner, Diane, is asleep, and I burrow deep into her back. I’m sweating like crazy, too. I’m desperate for the loo, and I run there in my shivery sweats and sweaty shivers. It’s only five minutes since I last went. When I sleep, the same obsessive m oment plays again and again. It’s to do with numbers. I need to get past number nine, but I can’t. The dream lasts for hours. Finally, I...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Coronavirus outbreak Infectious diseases Medical research Microbiology Science World news Health & wellbeing Boris Johnson Politics Society UK news Conservatives NHS Hospitals Doctors Source Type: news
Conclusions and significance: Occupational therapists (OTs) in the Scandinavian countries have conceptual understandings of client-centred practice that potentially provide the basis for knowledge sharing and collaboration between OT communities. However, the study also found that client-centred practice may not yet be firmly established in all OT practices in Scandinavia. PMID: 32493178 [PubMed - as supplied by publisher]
Source: Scandinavian Journal of Occupational Therapy - Category: Occupational Health Tags: Scand J Occup Ther Source Type: research
Conclusions: The examples provided in this paper challenge those occupational therapy theories that portray occupational engagement as the product of individual volition and unconstrained choice.Significance: Dominant occupational therapy theories are informed by specific Western assumptions that may have little relevance to people in other contexts. Critical approaches to professional assumptions are essential to avoid the imperialistic imposition of irrelevant theories, and the development and delivery of services that may be oppressive for clients who have few opportunities to make occupational choices. PMID: 324930...
Source: Scandinavian Journal of Occupational Therapy - Category: Occupational Health Tags: Scand J Occup Ther Source Type: research
Authors: Ali S, Sirota E, Ali H, Bezrukov E, Okhunov Z, Bukatov M, Letunovskiy A, Grygoriev N, Taratkin M, Vovdenko S, Afyouni A, Alyaev Y Abstract Objective: We sought to improve the educational and pre-operative training on various stages of percutaneous nephrolithotomy (PCNL) under fluoroscopic and ultrasound guidance. We developed a three-dimensional (3D) printed simulator (3D-printed PCNL model) for urological trainees.Methods: 40 s year urology residents were randomly assigned into two groups, completing PCNL surgical steps on a URO Mentor™ surgical simulator (Group A) or on our new 3D-printed PC...
Source: Scandinavian Journal of Urology - Category: Urology & Nephrology Tags: Scand J Urol Source Type: research
Abstract Coronaviruses cause disease in animals and people around the world. Human coronaviruses (HCoV) are mainly known to cause infections of the upper and lower respiratory tract but the symptoms may also involve the nervous and digestive systems. Since the beginning of December 2019, there has been an epidemic of SARS-CoV-2, which was originally referred to as 2019-nCoV. The most common symptoms are fever and cough, fatigue, sputum production, dyspnea, myalgia, arthralgia or sore throat, headache, nausea, vomiting or diarrhea (30%). The best prevention is to avoid exposure. In addition, contact persons should ...
Source: Cardiology Journal - Category: Cardiology Authors: Tags: Cardiol J Source Type: research
AbstractThere is a new public health crises threatening the world with the emergence and spread of 2019 novel coronavirus (2019-nCoV) or the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The virus originated in bats and was transmitted to humans through yet unknown intermediary animals in Wuhan, Hubei province, China in December 2019. There have been around 96,000 reported cases of coronavirus disease 2019 (COVID-2019) and 3300 reported deaths to date (05/03/2020). The disease is transmitted by inhalation or contact with infected droplets and the incubation period ranges from 2 to 14 d. The symptoms are usu...
Source: Indian Journal of Pediatrics - Category: Pediatrics Source Type: research
(CNN) — As the novel coronavirus — and panic about the coronavirus — continues to spread around the world, so too are bogus claims, conspiracy theories and misinformation about the disease. There’s so much inaccurate information floating around out there that the World Health Organization is calling it an “infodemic.” In perhaps the clearest sign of the times, WHO has joined TikTok to help set the record straight. Read: Coronavirus – What You Should And Shouldn’t Do The myths exist both on the fringes of the internet and in more mainstream outlets. And while social media...
Source: WBZ-TV - Breaking News, Weather and Sports for Boston, Worcester and New Hampshire - Category: Consumer Health News Authors: Tags: Boston News Health CNN Coronavirus Source Type: news
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