Veterinary Vertex

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Zero re-obstructions sounds almost too good to be true, so we wanted to understand exactly how the data got there and what it means for everyday feline practice. We are joined by study author Dr. Kelly Tart to talk about a prospective, double-blinded, placebo-controlled trial evaluating lorazepam for recurrence prevention after feline urethral obstruction in male cats, one of the most common and life-threatening urinary emergencies we treat.

We start with the “why”: feline urethral obstruction can rapidly cause azotemia, hyperkalemia, acidosis, and fatal arrhythmias, and recurrence often hits within the first couple of weeks after discharge. Kelly explains the key anatomic detail that drives the whole hypothesis: the male feline penile urethra contains both smooth and skeletal muscle, and plugs often lodge distally where skeletal muscle dominates. Many past pharmacologic approaches have focused on smooth muscle pathways, which may help explain inconsistent results in recurrence studies. Lorazepam, a benzodiazepine with skeletal muscle relaxant effects, offers a mechanism that better matches where the problem happens.

We also dig into what strong evidence looks like in veterinary medicine and why prospective enrollment, standardized care, placebo control, and double blinding matter when owners and clinicians are judging outcomes in nonverbal patients. You will hear practical discharge details including timing, dosing approach, a 30-day course to cover the highest-risk window, approximate cost, and what adverse effects to monitor such as sedation and ataxia. We close with the clinical “so what”: how this could change post-obstruction management, which cats we would avoid based on prior benzodiazepine sensitivity, and the research questions this opens for lower urinary tract signs beyond true obstruction.

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JAVMA article: https://doi.org/10.2460/javma.26.01.0045
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What if the IV catheter your hospitalized dog already has could spare them multiple needle sticks a day without sacrificing lab accuracy? We sit down with Dr. Bryan Welch to challenge a common assumption in small animal emergency and ICU care: that venipuncture is the only reliable way to get serial bloodwork. We talk through a validated push-pull blood sampling technique that uses a peripheral IV catheter to collect repeat samples while aiming to reduce stress, preserve veins, and lower the risk of oversampling and hospital-acquired anemia. 

Bryan breaks down the method step by step: flushing with sterile saline, drawing blood back, returning it to the patient, and repeating to clear dead space and reduce dilution. Then we dig into the results that matter to practicing veterinary teams, including how peripheral IV catheter samples compare with venipuncture right after placement and after at least 24 hours of continuous IV fluids and medications. We also clarify a point that trips up a lot of clinicians, statistically significant versus clinically relevant differences, using real examples of when a number changes but your treatment plan should not. 

We also cover the practical concerns that drive hesitation, hemolysis, clot formation, turbidity, and smear changes, plus what the study did and did not evaluate. Bryan shares where he would be cautious, including interpreting sodium potassium ratios for suspected hypoadrenocorticism, and offers simple implementation tips for teams trying the technique for the first time. If you want evidence-based ways to improve patient comfort and streamline hospitalized dog bloodwork, hit play, then subscribe, share with your ICU team, and leave a rating and review.
JAVMA article: https://doi.org/10.2460/javma.25.09.0635
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A dog with chronic diarrhea or vomiting might also be telling you something else. That’s the core thread we pull on as we explore the gut-brain axis in dogs and why chronic enteropathy (CE) can’t be fully understood through GI signs alone.

We’re joined by Drs. Ulrika Ludvigsson and Sarah Heath to unpack how chronic enteropathy is defined (GI signs lasting more than three weeks) and why emotional health has historically been sidelined in veterinary care. Then we get concrete about measurement. Sarah explains how a validated canine PANAS tool can capture emotional bias. We also dig into displacement behaviors like yawning, lip smacking, and shaking off in odd moments, using the Heath model “sink” analogy to show how high arousal can overflow into visible behavior.

The conversation turns to what their findings suggest: dogs with CE show higher protective bias and more frequent high-arousal signals than healthy dogs, even when GI disease activity seems well controlled. We talk about what that means for clinical decision-making, when to consider referral to a veterinary behavioral medicine specialist, and how co-management can support welfare. You’ll also hear practical owner steps that connect canine gut health and emotional stability, from fiber-forward diets and microbiome-friendly habits to sleep quality (yes, many adult dogs need 14 to 18 hours daily), environmental adjustments, nutraceuticals, pheromones, and medication when appropriate.

If you care about chronic GI disease, canine emotional health, and better outcomes through whole-dog treatment, this one is for you. Subscribe, share this episode with a veterinarian or dog-loving friend, and leave us a rating and review wherever you listen.
JAVMA article: https://doi.org/10.2460/javma.25.09.0623
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Metronidazole has been the reflex prescription for canine acute diarrhea for years and that habit is hard to break. We sit down with Dr. Erin Fry to unpack what the data actually says about outcomes in mild to moderate acute diarrhea, including cases with bloody stool, and why supportive care often matches antibiotics for speed of recovery. Along the way, we get honest about the real reasons “we know better” doesn’t always translate into “we do it” when a worried client is sitting in front of us. 

We walk through what uncomplicated acute diarrhea looks like in practice and what supportive care really means: hydration plans, a highly digestible diet, smart fiber use, and when probiotics may fit. Erin also explains why the gut microbiome is now central to the conversation, and how antibiotic-associated dysbiosis can linger for weeks to months, with special concern for puppies and kittens. If you’ve ever prescribed “just in case” because you feared missing something, this conversation gives you a clearer risk-benefit frame grounded in randomized controlled trials and day-to-day clinical reality. 

Then we zoom out to the culture of prescribing. Peer expectations inside a hospital, mixed standards between clinics, client demand for instant gratification, and the challenges faced by newer grads or relief doctors all shape decisions. Erin shares practical tools for behavior change, including practice-wide talking points, team alignment from front desk to exam room, and a concrete starting point using the AVMA antimicrobial stewardship checklist. 

If you want a clearer, evidence-based approach to treating canine acute diarrhea without unnecessary antibiotics, listen now, share this with a colleague, and leave us a rating and review on Apple Podcasts or wherever you listen.
JAVMA article: https://doi.org/10.2460/javma.25.10.0686
AVMA veterinary checklist for antimicrobial stewardship: Veterinary-Checklist-Antimicrobial-Stewardship.pdf
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Guinea pigs don’t read the dog-and-cat neurology textbook and that’s exactly where clinicians get into trouble. We sit down with Dr. Vishal Murthy to unpack what a truly species-specific neurologic examination looks like for guinea pigs, why so many “standard” tests can be misleading, and how prey-species stress can flatten reflexes and hide both normal function and real disease. If you’ve ever felt unsure interpreting postural reactions or reflex testing in small mammals, this conversation gives you a clearer baseline for what normal actually is. 

We dig into the practical realities that make exotic pet neurology hard in the exam room: freezing, shutdown behaviors, and the ways restraint and stress can change responses. Vishal shares the most surprising findings from their work, including why a gag reflex attempt can quickly become a chewing response, and what that means for brain and spinal cord lesion localization. We also talk about differences between client-owned and research guinea pigs, and why handling style may explain pelvic limb tactile placing changes. 

To make this useful at 2 a.m. in ER as well as in specialty practice, we walk through a guinea pig specific checklist designed to emphasize feasible, more reliable exam elements and reduce unnecessary handling. The goal is better diagnostic accuracy, faster decision-making, and improved welfare for a prey species that experiences exams differently than cats and dogs. Subscribe for more veterinary neurology conversations, share this with your zoological companion animal colleagues, and leave a rating and review wherever you listen.
JAVMA article: https://doi.org/10.2460/javma.25.12.0823
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