Tag Archives: screening

COVID-19: A Medical Example of How Science-Guided Policy Goes Wrong

COVID-19: A Medical Example of How Science-Guided Policy Goes Wrong is the title of an article by me published on the National Association of Scholars website. Among other topics its discusses the problem of false positives test for the virus. The issue has largely been ignored. Consider the five soccer players in Spain who have…


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Understanding the Implication of a Positive Test For COVID-19

The public and the press have little understanding of what a positive test for any disease means. Iceland has decided to test its entire population for COVID-19, which as can be seen from the data below is an act of well meaning folly. I’ll make this explanation as simple as I can. Any medical test…


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Prostate Cancer Screening Recommendations Change Yet Again

The US Preventive Services Task Force is as fickle an organization as can be found in medicine. Consider their position about prostate cancer it seems to change more often than an infant’s diaper. Their latest pronunciamento on the subject is summarized below. Their full statement is at the end of this piece. Part of the…


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AAA Screening

About 4% of men and 1% of women over the age of 65 have an abdominal aortic aneurysm (AAA). When this aneurysm ruptures the mortality rate is about 80%. Thus it is not surprising that screening for this condition in patients (mostly men) with abdominal ultrasound has become prevalent over the last decade or so….


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The New HIV Test

There’s a new test for HIV which has just received FDA approval for over the counter sales. This has been widely reported in the press. Not surprisingly the press is having a lot of trouble understanding what a positive test means. The NY Times tied itself into a knot on the subject. The closest to reality I…


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Screening for Cancer

Below is the PowerPoint presentation of the talk Screening for Cancer that I gave today to Spring Cancer Conference sponsored by the Lubbock-Crosby-Garza County Medical Society. A related presentation can be found here. Screening for Cancer


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Prostate Cancer Redux – Again

Even Scientific American has gotten into the act. An article by Harvard oncologist Marc B Garnick says, “Evidence shows that screening [for prostate cancer] does more harm than good.” Go here for an interview with Dr Garnick. Why this great awakening about the unsatisfactory effects of PSA screening? It’s the result of reality seepage and the…


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Screening For Disease – When Not to Do It

The above is the title of a presentation I gave today at Medical Grand Rounds at Texas Tech University Health Sciences Center. Below is the PowerPoint file of that presentation. Screening for Disease – When Not to Do It


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Treatment of Prostate Cancer

The treatment of prostate cancer has been uncertain for some time. A paper in the May 5th issue of the New England Journal of Medicine examines two approaches to the disease – watchful waiting versus radical prostatectomy. A Scandinavian group observed 695 men with early prostate cancer for 15 years. They conclude that Radical prostatectomy was…


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Screening for Prostate Cancer – Again

USA Today which has a hard enough time just reporting the news is now dispensing medical advice: The news that Sen. Ron Wyden has been diagnosed with prostate cancer should be a reminder to men over 50 to be screened for the disease. They don’t seem to have looked to see what the scientific basis for that…


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