“Safe and natural.” It’s a marketing phrase attached to dietary supplements that’s often accepted as self-evident. The marketing works. Supplements have a strong health halo. But evidence suggests that this reputation may be undeserved. Not only are there continued questions about whether most supplements have any health benefits whatsoever, there is also evidence that they can be harmful. We can’t even be confident that what’s on the label is actually in the bottle. Just two days ago I was notified of another long list of supplements and remedies that the FDA had identified that were contaminated with prescription drugs. These warnings about products sold as supplements appear regularly. Some time ago I asked, “What’s in your supplement?“, and noted that contamination and poor product quality standards continue to raise questions about whether supplements can be used safely at all, because the harms, when they occur, can be catastrophic. No matter how you feel about their efficacy, we can probably all agree no consumer should lose an organ from taking a health supplement. But it can happen. (more…)
Archive for Science and Medicine
Ebola, like all diseases, is an opportunity for some to offer up curious treatments. Here is a brief budget of Ebola-related SCAM (supplements, complementary and alternative medicine) and a few Dug the Dog digressions.
Reality seems valueless by comparison with the dreams of fevered imaginations; reality is therefore abandoned. ~ Emile Durkheim. Homeopath?
In its classic form, as promulgated by Hahnemann, homeopathy is divorced from the modern understanding of medical and chemical reality. I can cut Hahnemann a little slack since he came up with his fictions at the end of the 18th century. But I would think that even a modest understanding of chemistry and physiology would suggest that homeopathy is 100% pure bunkum. But homeopaths are nothing if not inventive. Since Hahnemann’s time they have come up with a remarkable number of variations on their nonsense. The motto “you are only limited by your imagination” must have had homeopaths in mind and they have fevered imaginations. Who knows what they could invent if they only had a box. There are nosodes, the homeopaths answer to vaccines. Of course, it is an answer that would be wrong on any reality-based exam. Nosodes are the vaccines of the homeopathic world, only without efficacy. I have written about nosodes in the past.
[A nosode] is a homeopathic remedy prepared from a pathological specimen. The specimen is taken from a diseased animal or person and may consist of saliva, pus, urine, blood, or diseased tissue.
and they are usually diluted to between 30 and 300 C. (more…)
A recent editorial entitled “CAM in the Real World: You May Practice Evidence-Based Medicine, But Your Patients Don’t” published in Headache: The Journal of Head and Face Pain by Robert Cowan, a headache specialist, addresses the use of complementary and alternative medicine (CAM) in the treatment of headaches. Unfortunately he propagates many common misconceptions about CAM in the article.
I do agree with one point – physicians need to be more aware of CAM treatments and their patients’ use of them. We should be directly asking our patients about such use, in a non-judgmental way, and we should be familiar enough with common CAM treatments so that we can provide knowledgeable guidance to our patients.
Cowan begins by, in my opinion, grossly exaggerating the current popularity of CAM. He writes:
As much as 82% of headache sufferers use complementary and alternative approaches.
The reference he cites, however, states:
Adults with migraines/severe headaches used CAM more frequently than those without (49.5% vs 33.9%, P < .0001); differences persisted after adjustment (adjusted odds ratio = 1.29, 95% confidence interval [1.15, 1.45]). Mind–body therapies (eg, deep breathing exercises, meditation, yoga) were used most commonly.
Only 4.5% of adults with migraines/severe headaches reported using CAM to specifically treat their migraines/severe headaches.
A significant part of my job as a pediatric hospitalist involves caring for newborns. It is arguably the best thing that I get to do as a physician, even if I do at times prefer the increased intellectual stimulation of the ill hospitalized child. While seeing newborns, I am almost always surrounded by happy and appreciative parents, grandparents and whoever else is invited to meet and greet the new arrival because the babies are almost always healthy. In fact, and not that I really care (sniff, sniff), the parents of newborns are with rare exception the only caregivers that ever thank me at discharge.
Unfortunately, sometimes I am called upon to assist babies that are having difficulty transitioning into the outside world for a variety of reasons. These reasons can range from the fairly minor and transient to the catastrophic. And despite our advances in the understanding of neonatal pathophysiology and in medical technology, there remain newborn infants that cannot be saved or who have severe lifelong deficits caused by their illness or injury. This will likely always be the case, especially if unqualified professionals continue to involve themselves in either the delivery or the care of babies.
Over the course of 11 years of practice, and after having seen thousands of both perfectly healthy and severely ill newborns, I have acquired a skill set which allows for the recognition of a baby in trouble and the ability to respond appropriately. All pediatricians and family doctors strive to develop this, particularly if they see patients in the newborn nursery, although I imagine none, including myself, would claim to have perfected this “art”. Newborn medicine can be very challenging for many reasons, not the least of which is the significant overlap of the presenting signs and symptoms of many serious conditions, with even normal baby behavior sometimes mimicking potentially life-threatening pathology. (more…)
It’s an excellent business model. The only real infrastructure you need is a website, and you can have a custom site made for $5-10 thousand. Then you just have the monthly bandwidth charges. The rest is just e-marketing, which can be done for free, or the cost of some e-mails lists. After that, the money just comes rolling in.
The best part is that other people do all the actual work. All you have to do is charge them for publishing on your open-access online journal.
What you are selling is essentially scientific/academic fraud.
Unfortunately, this is a good business model, even though it is a terrible scientific model, and so it has proliferated. We may be living in the heyday of dubious open-access scientific journals.
The open-access format itself is not a bad one, and there are some very successful and respected open-access journals, such as the PLOS journals. The idea is that, instead of charging a subscription in order to gain access to published articles (in print or online), the articles are open-access, but authors pay a fee to have their work published.
Old bad studies: Fantastical autopsy results
I found the following quote at “Chiropractic care can treat more than just bad backs” (FYI. Chiropractic can’t):
Luse references a study published in The Medical Times authored by Dr. Henry Windsor [sic], M.D. that showcases the correlation of spinal health to overall wellness. Windsor dissected 75 human cadavers to investigate their causes of death. The study showed that 138 of the 139 diseases of the internal organs that were present were in connection to the misalignments of the vertebrae.
But I was intrigued. So I went to the video tape. Well, the PDF.
It is an interesting read by a physician who was looking for an association between curvature of the spine and visceral pathology.
He had 50 corpses, age unknown, that he dissected, looked at the spine for curvature and then looked for pathology in organs in the same distribution of sympathetic nervous system as the level of the spine curvature.
A small but increasing number of parents are refusing vitamin K injections for their newborns, an intervention recommended since 1961. This is yet another example of the difference between a science-based and philosophy-based approach to medicine. Science has given us the tool of knowledge, and in medicine that knowledge can have very practical applications.
The term “vitamin” was coined in 1912 by the Polish biochemist Kazimierz Funk. A vitamin is an organic nutrient that an organism requires in small amounts but cannot synthesize in adequate amounts and therefore must obtain from the diet. Knowledge of specific vitamins, their food source, and their biochemical activity in the body, has allowed medical scientists to cure many serious nutritional diseases, such as scurvy, rickets, and blindness.
The Vitamin K family are derivatives of 2-methyl-1,4-naphthoquinone, a fat-soluble molecule. It is a cofactor necessary for the formation of factors that function in blood clotting and in bone formation. The primary effect of vitamin K deficiency is therefore bleeding. Infants are at risk for vitamin K deficiency because this molecule does not cross the placenta well. Infants are therefore born relatively deficient in vitamin K. Further, breast milk contains little vitamin K (regardless of the mother’s diet) so infants are at risk for vitamin K deficiency until they start eating solid food at around 6 months (see Clay Jones’ post on the topic here). (more…)
In pediatrics, very few things are completely black and white. This is an aspect of conventional medicine in general that tends to separate the approach of science-based practitioners from that of proponents of the many forms of irregular medicine commonly discussed on SBM. They appear to experience no shame in claiming absolute certainty while doling out all manner of implausible remedies for ailments ranging from the well-established to the fictional.
While we do face questions from patients and their caregivers regarding largely invented diagnoses in pediatrics, with chronic Lyme disease and non-celiac gluten sensitivity being just two of many increasingly encountered concerns, my experience has been that alternative medical providers tend to focus their efforts on the same real problems that pediatricians and family practitioners deal with on a daily basis. And I don’t believe that it is mere coincidence that these conditions are largely self-limited in nature, a fact often not shared. Parental and patient buy-in is often more easily obtained with certainty rather than nuance.
Chiropractors, for example, seem to pride themselves on their ability to cure ear infections. Of course in greater than 80% of children with acute ear infections, symptoms will resolve without any intervention whatsoever. This is why the AAP has been trying for years to decrease the rates of antibiotic prescriptions for ear infections, unfortunately with little in the way of success thus far. And when the infections don’t resolve on their own, there is no good evidence that anything a chiropractor has to offer can help. The same can be said for their claims regarding colic and gastroesophageal reflux, which I’ve written about before.
Another condition frequently mentioned by chiropractors as being particularly in their wheelhouse is nighttime bedwetting, the medical term for this being nocturnal enuresis. Rarely have I seen a chiropractic website with a section on the benefits for children that does not mention their success in curing bedwetting. Fred Clary, DC, even claims on his website to be able to cure bedwetting in the newborn baby. And to think I’ve just been ignoring the problem as a newborn hospitalist. Is it because the thought of a newborn infant gaining continence is absurd, or am I just a shill for Big Pampers?
It’s that time of year when every day I can expect to see at least one patient with a concern about Lyme disease. In Lyme-endemic regions such as Western Massachusetts, where I practice pediatrics, summer brings a steady stream of children to my office with either the classic Lyme rash (erythema chronicum migrans, or ECM), an embedded tick, a history of a tick bite, or non-specific signs or symptoms that may or may not be due to Lyme disease. Sometimes the diagnosis is relatively straightforward. A child is brought in after a parent has pulled off an engorged deer tick, and there is a classic, enlarging ECM rash at the site of the bite. More often the presentation is less clear, requiring detective work and science-based reasoning to make an informed decision and a diagnostic and therapeutic plan based on the best available evidence. Depending on the story, the plan may include immediate treatment without any testing (as in the straightforward case described above), immediate testing without treatment pending test results, or waiting as we watch and see how a rash progresses before doing anything. An example of this latter course of action would be when a patient comes in with a pink swelling at the site of a new tick bite. In this case, it may not be clear if the swelling is a Lyme rash or simply a local reaction to the bite, a much more common occurrence. The classic ECM rash (an enlarging, red, circular, bull’s-eye rash at or near a tick bite) typically develops 1-2 weeks after a tick bite, but can occur anywhere from 3-30 days later. It then expands and darkens over another 1-3 weeks before fading. This classic rash is not the most common rash of Lyme disease, however, as it occurs in only about 30% of cases. Instead, the rash may be uniformly pink or red (or even darker in the center) without the target-like appearance, or may be a linear rash, expanding outward from the tick bite site. In the case of a patient who comes in with a vague, pink swelling within a day few days of a tick bite, we will typically wait and see what happens to the rash. If it is a local reaction, it will likely resolve within another few days. With Lyme disease, the rash will continue to enlarge and declare itself as an ECM rash. Another unclear and not uncommon situation is when a patient comes in with non-specific symptoms such as fatigue, musculoskeletal pains, and headache. If warranted by the history and the physical exam, we may in this case order Lyme testing. This may not give us an answer even if the patient has Lyme disease, because results are often negative in the first few weeks of the disease. In this case, if symptoms persist or evolve, we will repeat the testing in another few weeks at which point true Lyme disease will test positive and can then be treated. The good news is that the treatment of Lyme disease, particularly in the early, localized phase of the disease, is extremely safe and effective with a 14-day course of antibiotics. The testing is also relatively straightforward, with very good sensitivity and specificity when performed correctly. And this is where the bad news comes… (more…)
I’m a dog person. I always wanted a dog as a child, and while my extended family all had dogs, we never had one in our home. I finally got my wish just over a decade ago. My wife and I were referred to a breeder with an excellent reputation for raising healthy, family-friendly Labrador Retrievers. Within moments of meeting a tiny black lab, we immediately put a deposit down. When we took Casey home a few months later she was healthy – a ball of kinetic energy. The breeder offered us a health guarantee – free of hip and elbow dysplasia, supported by certifications from the dog’s parents and grandparents. The breeder recommended we use a specific brand of food (which we ignored), and other than vaccinating her and promising not to breed her, there were few conditions for the guarantee. We were excited “parents” and that first year was a lot of fun.
At about 12 months of age, Casey started limping. At first we thought it was a temporary consequence of boisterous play. It was initially subtle, but then became very obvious – she started walking differently, and it didn’t go away. The x-rays confirmed what we feared: elbow dysplasia. Our breeder was deeply apologetic – consistent with the guarantee, she offered to replace our dog. Giving up our pet was out of the question, so we started looking at treatment options. The veterinarian offered surgery, but even he wasn’t enthusiastic, citing the very real likelihood it would do nothing. Knowing the toxicity of anti-inflammatory drugs, I wasn’t optimistic that would be tolerable for the long run. Instead we went the supplement route. (more…)