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William Wilson's avatar

Very well written, and I completely agree with your perspective. At the tender age of 75 I am still practicing medicine and I intend to keep doing so for the decades to come!

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Marius Clore's avatar

While I agree with Vinay on the whole I think he makes certain classical mistakes, which is surprising given his extensive criticism of so many poorly conducted RCTs involving cancer drugs.

Take Invermectin as an example (and I've no idea whether it's useful or not for COVID). There are RCTs that claim it works (e.g. the Brazil trial) and others (e.g. the RECOVERY trial) that claim it doesn't. However, the UK RECOVERY TRIAL was highly flawed as it included patients up to 14 days from testing positive for COVID. Well under those circumstances of course the trial is going to be negative for Ivermectin as any antiviral really has to be given within 48 hours of the onset of symptoms. Further it is generally the case that any single drug is not useful for a viral illness. So if ohne is going to look at ivermectin or hydroxychloroquine in a trial the treatment arm should comprise the complete care regimen which includes azithromycin or doxycycline, prednisone, zinc, vitamin D, vitamin K2 etc...... Failure to do so in an RCT simply provides no useful information whatsoever.

Likewise, Vinay's comments on colonoscopies is probably flawed because one has to consider the individual and the overall status of the individual. e.g. Take an 85 yr old patient. If that patient has other issues (e.g. cardiovascular disease, etc...) then finding polyps and resecting those in a colonoscopy is unlikely to prolong OS as the patient will likely die from other causes before the colon cancer gets to him/her. however, if the patient is completely fit physically and medically, then a colonoscopy could easily prolong OS. But of course for an 85 yr old, that prolongation could be relatively small since very very few are likely to live beyond 100, let alone say 95. So the issue is far more complicated than Vinay portrays. Similarly if you have a fit 45 yr old where a polyp is found on a colonoscopy, then it is self-evident that resection will prevent the development of colon cancer from that polyp. But of course, continual follow-up is required since other polyps may develop.

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