July 20th, 2011 by Paul Auerbach, M.D. in Health Tips
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Ear infections are the bane of childhood and can spoil many outdoor adventures. One of the most common infections of childhood, they provoke long nights of miserable children, sleepless parents, and unhappiness all around. They may be recurrent, and can also progress (rarely) to more serious medical problems, such as meningitis.
What Are Ear Infections?
Acute otitis (inflammation of the ear) media (“middle”) infection is caused by bacteria or viruses. When it occurs, there is redness and inflammation of the eardrum, frequently with a collection of blood, serum, or pus behind the drum. To know whether or not this has occurred, and to precisely determine the anatomic diagnosis and severity, one needs to see the eardrum, which is what the healthcare provider does with an otoscope.
With otitis media (middle ear infection), there is no drainage from the external ear canal (unless the eardrum ruptures, which is unusual in an adult and more common in a child) and the victim has a fever, sometimes with an accompanying sore throat. In many cases, the victim has a history of prior similar ear infections. Most often, otitis media occurs in children; when it occurs in an adult, it may be associated with a sinus infection or functional obstruction of the eustachian tube (the pressure-release mechanism from the middle ear into the throat).
It is interesting to note that children who chew Read more »
This post, One Of The Most Common Infections Of Childhood: Otitis Media, was originally published on
Healthine.com by Paul Auerbach, M.D..
June 26th, 2011 by DrWes in Opinion, Research
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Alright doctors, time to give up the cell phones. (Never mind that there has not been a study linking cell phones and hospital acquired infections).
From the American Journal of Infection Control:
A cross-sectional study was conducted to determine bacterial colonization on the mobile phones (MPs) used by patients, patients’ companions, visitors, and health care workers (HCWs). Significantly higher rates of pathogens (39.6% vs 20.6%, respectively; P = .02) were found in MPs of patients’ (n = 48) versus the HCWs’ (n = 12). There were also more multidrug pathogens in the patents’ MPs including methicillin-resistant Staphylococcus aureus, extended-spectrum β-lactamase-producing Escherichia coli, and Klebsiella spp, high-level aminoglycoside-resistant Enterococcus spp, and carabepenem-resistant Acinetobacter baumanii. Our findings suggest that mobile phones of patients, patients’ companions, and visitors represent higher risk for nosocomial pathogen colonization than those of HCWs. Specific infection control measures may be required for this threat.
What specific measures might they consider?
They better be careful what they wish for or they might also have to take away all those dirty EMR computer keyboards, too.
*This blog post was originally published at Dr. Wes*
May 30th, 2011 by Mark Crislip, M.D. in Health Tips
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It is hard to get infected. The immune system is robust and has a multitude of interlinking defenses that are extremely efficient in beating off most pathogens. Most of the time.
Fortunately, it is a minority of microbes that have evolved to be virulent in humans. Bacteremia is common with our own microbiome. When you brush or floss, bacteria leak into the blood stream:
We identified oral bacterial species in blood cultures following single-tooth extraction and tooth brushing. Sequence analysis of 16S rRNA genes identified 98 different bacterial species recovered from 151 bacteremic subjects. Of interest, 48 of the isolates represented 19 novel species of Prevotella, Fusobacterium, Streptococcus, Actinomyces, Capnocytophaga, Selenomonas, and Veillonella.
but with a good immune system, low virulence bacteria and no place to go, unfortunately the bacteria rarely cause infections.
Even heroin users rarely get infection. Heroin is a rich melange of bacteria and, on occasion, yeasts (I hate to say contaminated, since avoiding microbes is hardly a worry of heroin manufacturers), and the water used for injection is rarely sterile, yet infections are relatively rare despite the filth in which many heroin users exist.
I used to be somewhat fatalistic about hospital acquired infections. However, as the institutions in which I have worked have proven, almost all infections in the hospital are preventable if the institutions aggressively pursue high standards of care.
There are many systems in place in society to prevent infections: flush toilets, good nutrition, public health, vaccines, antibiotics, good hygiene, and an understanding of disease epidemiology, and I suspect people forget there are bugs out there that are pathogenic, just waiting to sicken and kill us. At least a couple of times a year I see patients come into the hospital, previously healthy, who rapidly die of acute infections. But for most people, most of the time, it takes a lot of effort to get an infection.
From my perspective we are Charlie Chaplain on skates , mostly unaware of the infections that awaits us if we do something silly, Read more »
*This blog post was originally published at Science-Based Medicine*
April 27th, 2011 by Michael Kirsch, M.D. in Health Policy, News, Opinion
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Recently, nine patients died in Alabama when they received intravenous nutrition that was contaminated with deadly bacteria. This type of nutrition is called total parenteral nutrition, or TPN, and is used to nourish patients by vein when their digestive systems are not functioning properly. It is a milestone achievement in medicine and saves and maintains lives every day.
What went wrong? How did an instrument of healing become death by lethal injection? What is the lesson that can emerge from this unimaginable horror?
This tragedy represents that most feared ‘never event’ that can ever occur – death by friendly fire. No survivors. Contrast this with many other medical ‘never events’ as defined by the Centers for Medicare and Medicaid Services, such as post-operative infections, development of bed sores in the hospital or wrong-site surgery. Under the ‘never events’ program, hospitals will be financially penalized if a listed event occurs. Many physicians and hospitals are concerned that there will be a ‘never events’ mission creep with new outcomes added to the list that don’t belong there. Medical complications, which are unavoidable, may soon be defined as ‘never events’.
Do we need a new category of ‘never ever ever events’ to include those that lead to fatal outcomes? Read more »
*This blog post was originally published at MD Whistleblower*
April 4th, 2011 by M. Brian Fennerty, M.D. in Health Tips, Opinion
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H. pylori dominated the GI news in the 1990s, and despite it disappearing from the front pages, it remains a common and important clinical problem. The dominant recommended initial treatment strategy has been a clarithromycin-based PPI triple therapy, with either amoxicillin or metronidazole as the third drug. This approach was based on clinical studies, ease of use, and tolerability factors. Bismuth-based quadruple therapy (a bismuth agent, metronidazole, tetracycline, and a PPI), despite demonstrating excellent activity, was usually relegated to second-line therapy because of the complexity of the dosing as well as compliance and tolerability issues.
However, duringthe last decade, the widespread use of macrolides in the general population has led to rising resistance to clarithromycin (by 30% or more of H. pylori strains in some areas), and when clarithromycin resistance is present, the efficacy of clarithromycin-containing triple therapy falls from about 80% to 50% or even lower. However, clarithromycin resistance does not affect the efficacy of bismuth-based quadruple therapy, and that efficacy of those regimens remains at about 90% when patients are compliant with the treatment.
So the questions for you to consider are:
1) Do you know what the clarithromycin resistance rate in H. pylori is in your community?
2) What first-line H. pylori treatment regimen do you use?
3) Are you planning to change your H. pylori treatment strategy now that clarithromycin resistance rates are rising?
Let us know what you think.
*This blog post was originally published at Gut Check on Gastroenterology*
