Over the long weekend I caught up on some reading. One article* stands out. It’s on informed consent, and the stunning disconnect between physicians’ and patients’ understanding of a procedure’s value.
The study, published in the Sept 7th Annals of Internal Medicine, used survey methods to evaluate 153 cardiology patients’ understanding of the potential benefit of percutaneous coronary intervention (PCI or angioplasty). The investigators, at Baystate Medical Center in Massachusetts, compared patients’ responses to those of cardiologists who obtained consent and who performed the procedure. As outlined in the article’s introduction, PCI reduces heart attacks in patients with acute coronary syndrome — a more unstable situation than is chronic stable angina, in which case PCI relieves pain and improves quality of life but has no benefit in terms of recurrent myocardial infarction (MI) or survival.
The main result was that, after discussing the procedure with a cardiologist and signing the form, 88 percent of the patients, who almost all had chronic stable angina, believed that PCI would reduce their personal risk for having a heart attack. Only 17 percent of the cardiologists, who completed surveys about these particular patients and the potential benefit of PCI for patients facing similar scenarios, indicated that PCI would reduce the likelihood of MI.
This striking difference in patients’ and doctors’ perceptions is all the more significant because 96 percent of the patients “felt that they knew why they might undergo PCI, and more than half stated that they were actively involved in the decision-making.” Read more »
*This blog post was originally published at Medical Lessons*
Felasfa Wodajo, an orthopedic oncologist in Virginia, recently took his iPad into the operating theater to see how it performs in such an environment.
Being one of the editors at iMedicalApps, Dr. Wodajo just published his initial findings and they bode a rather bright clincial future for the iPad, and tablets in general.
SOURCE: iMedicalApps: Test driving the iPad in the hospital Operating Room…
*This blog post was originally published at Medgadget*
One of the things about science-based medicine that makes it so fascinating is that it encompasses such a wide variety of modalities that it takes a similarly wide variety of science and scientific techniques to investigate various diseases. Some medical disciplines consist of mainly of problems that are relatively straightforward to study. Don’t get me wrong, though. By “straightforward” I don’t mean that they’re easy, simply that the experimental design of a clinical trial to test a treatment is fairly easily encompassed by the paradigm of randomized clinical trials.
Medical oncology is just one example, where new drugs can be tested in randomized, double-blinded trials against or in addition to the standard of care without having to account for many difficulties that arise from difficulties blinding. We’ve discussed such difficulties before, for instance, in the context of constructing adequate placebos for acupuncture trials.
Indeed, this topic is critical to the application of science-based medicine to various “complementary and alternative medicine” modalities, which do not as easily lend themselves to randomized double-blind placebo-controlled trials, although I would hasten to point out that, just because it can be very difficult to do such trials is not an excuse for not doing them. The development of various “sham acupuncture” controls, one of which consisted even of just twirling a toothpick gently poked onto the skin, shows that.
One area of medicine where it is difficult to construct randomized controlled trials is surgery. The reasons are multiple. Read more »
*This blog post was originally published at Science-Based Medicine*