Brennen McKenzie

Veterinary chiropractic: A friend or foe to your patients?

Veterinary chiropractic: A friend or foe to your patients?

November 18, 2020

By Brennen McKenzie, MA, MSc, VMD, cVMA

Chiropractic is primarily the manipulation of bones in the spine in an effort to treat or prevent disease or to reduce discomfort. Though therapeutic manipulation of bones in the spine has a long history, chiropractic—as it is understood today—was invented in the late 19th century by Daniel David Palmer. He conceived the notion that all disease results from vertebrae in the spine being out of place (so-called "subluxations"), and that their forceful manipulation (an "adjustment") can prevent or treat disease. He gave varying explanations for this idea over time, often claiming nerves carried a spiritual energy called "innate intelligence," and that obstruction of the flow of this energy by vertebral subluxations caused medical symptoms.1,2 Few chiropractors today still adhere to the notion of a mystical energy such as innate intelligence as the source of disease or the focus of chiropractic treatment. However, there is a split in the field with respect to the subluxation concept.3,4 Most chiropractors still view subluxation, or the vertebral subluxation complex (VSC), as a real entity causing illness and that can be corrected by chiropractic manipulation. These practitioners also sometimes reject modern scientific explanations of illness, such as germ theory, and may recommend their patients avoid …
Food is love—So why is nutrition a problem area for veterinarians?

Food is love—So why is nutrition a problem area for veterinarians?

September 29, 2020

By Brennen McKenzie, MA, MSc, VMD, cVMA

As a child, I was a big fan of the Peanuts cartoons. One of my favorite characters was Snoopy, a suave, bipedal beagle who wrote novels and engaged in breathtaking aerial combat with his nemesis, the Red Baron. Though Snoopy was unlike most other beagles I have known, he had one characteristic in common to others of his breed, and indeed most dogs. When suppertime arrived, all other activities were forgotten, and he often launched into an exuberant, joyful, food-induced dance. Every feeding was a celebration for Snoopy, not only of food but of the bond between dog and owner. Few subjects generate the same intensity of emotion in pet owners as the question of what to feed our animal companions. Feeding our pets is the quintessential act of caring and love. And based on how most dogs and cats act at feeding time, it certainly seems like a highlight of the relationship for them. There is also a deep sense in most pet owners that choosing a pet food has tremendous significance for the health and well-being of their pets. Everyone wants to give their pets the "best" food that will keep them active and happy and prevent illness …
Antimicrobial stewardship: What it is and why it matters

Antimicrobial stewardship: What it is and why it matters

August 4, 2020

By Brennen McKenzie, MA, MSc, VMD, cVMA

Antimicrobials have tremendous therapeutic benefits in human and veterinary patients. After vaccination, antibiotics are probably the most important medical intervention of the 20th century in terms of reducing suffering and death. Of course, antimicrobials can also have significant adverse effects. And any use of antimicrobials, including appropriate therapeutic use, creates a selection pressure that can result in emergence of antimicrobial resistance (AMR) or an increase in the abundance of resistant bacteria. Adverse effects and the development of resistance reduce the potential benefits of antibiotics. Antimicrobial stewardship is the concept of using antibiotics in a manner that maximizes their benefits, minimizes risks, and conserves the effectiveness of these important drugs.1 Changing when and how we use antibiotics is the key to achieving these goals. Antimicrobial stewardship involves three general strategies: 1) Preventing infectious disease occurrence 2) Reducing overall antimicrobial use 3) Using antimicrobials in ways that maximize the benefits, minimize the adverse effects, and reduce the development of antibiotic resistance Preventing infections Preventing bacterial infections automatically reduces the need for, and hence the use of, antimicrobials. This involves encouraging clients to provide appropriate husbandry and preventive care, including vaccination, proper nutrition, isolation of sick animals, and other prophylactic measures. Prevention of …
From the trenches: How life has changed since COVID-19 came into our lives

From the trenches: How life has changed since COVID-19 came into our lives

April 23, 2020

By Brennen McKenzie, MA, MSc, VMD, cVMA

The hospital is quiet as I walk in at the start of my shift. The usual bustle of clients, staff, and animals has been replaced by empty hallways and only a few masked doctors and nurses going about their work quietly, careful to keep their distance from each other. I stop at the screening table and start my day by taking my temperature. It is under 100.4 F, and I have no cough or other respiratory symptoms, which means I can work today. I set down my belongings at my desk and go to change my clothes. I wear scrubs every day now, and I have a pair of dedicated work shoes that stay at the hospital. I also have a collection of beautiful cloth face masks sewn by one of our employees—I wear a clean one every day. At the end of my shift, all of my work clothes go into the laundry. When I get home, everything I took to work stays in the garage. I pass quickly through the house and take a shower before I greet my family. I am especially mindful to keep my distance from my elderly mother, who lives with us, and …
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