Episode 65 – IV Iron for Anemia in Emergency Medicine
For years we’ve been transfusing red cells in the ED to patients who don’t actually need them. A study looking at trends in transfusion practice in the ED found that about 1/3 of transfusions given were deemed totally inappropriate. As we explained in previous EM Cases episodes, there have been a whole slew of articles in the literature over the years that have shown that morbidity and mortality outcomes with lower hemoglobin thresholds, like 70g/L for transfusing ICU patients (TRICC trial), patients in septic shock (TRISS trial), and patients with GI bleeds are similar to outcomes with traditional higher hemoglobin thresholds of 90 or 100g/L. We’re simply transfusing blood way too much! The American Association of Blood Banks in conjunction with the American Board of Internal Medicine’s Choosing Wisely campaign, as one of its 5 statements on overuse of procedures, stated, “don’t transfuse iron deficiency without hemodynamic instability”. So, in this episode with the help of Transfusion specialist, researcher and co-author of the American Association of Blood Banks transfusion guidelines Dr. Jeannie Callum, Transfusion specialist and researcher Dr. Yulia Lin, and 'the walking encyclopedia of EM' Dr. Walter Himmel, we give you an understanding of why it’s important to avoid red cell transfusions in certain situations, why IV iron is sometimes a better option in a significant subset of anemic patients in the ED, and the practicalities of exactly how to administer IV iron.
Episode 64 Highlights from Whistler’s Update in EM Conference 2015 Part 2
In this Part 2 of EM Cases' Highlights from Whistler's Update in EM Conference 2015 Dr. David Carr gives you his top 5 pearls and pitfalls on ED antibiotic use including when patients with sinusitis really require antibiotics, when oral antibiotics can replace IV antibiotics, how we should be dosing Vancomycin in the ED, the newest antibiotic regimens for gonorrhea and the mortality benefit associated with antibiotic use in patients with upper GI bleeds. Dr. Chris Hicks gives you his take on immediate PCI in post-cardiac arrest patients with a presumed cardiac cause and The Modified HEART Score to safely discharge patients with low risk chest pain.
Episode 63 – Pediatric DKA
Pediatric DKA was identified as one of key diagnoses that we need to get better at managing in a massive national needs assessment conducted by the fine folks at TREKK – Translating Emergency Knowledge for Kids – one of EM Cases’ partners who’s mission is to improve the care of children in non-pediatric emergency departments across the country. You might be wondering - why was DKA singled out in this needs assessment? It turns out that kids who present to the ED in DKA without a known history of diabetes, can sometimes be tricky to diagnose, as they often present with vague symptoms. When a child does have a known history of diabetes, and the diagnosis of DKA is obvious, the challenge turns to managing severe, life-threatening DKA, so that we avoid the many potential complications of the DKA itself as well as the complications of treatment - cerebral edema being the big bad one. The approach to these patients has evolved over the years, even since I started practicing, from bolusing insulin and super aggressive fluid resuscitation to more gentle fluid management and delayed insulin drips, as examples. There are subtleties and controversies in the management of DKA when it comes to fluid management, correcting serum potassium and acidosis, preventing cerebral edema, as well as airway management for the really sick kids. In this episode we‘ll be asking our guest pediatric emergency medicine experts Dr. Sarah Reid, who you may remember from her powerhouse performance on our recent episodes on pediatric fever and sepsis, and Dr. Sarah Curtis, not only a pediatric emergency physician, but a prominent pediatric emergency researcher in Canada, about the key historical and examination pearls to help pick up this sometimes elusive diagnosis, what the value of serum ketones are in the diagnosis of DKA, how to assess the severity of DKA to guide management, how to avoid the dreaded cerebral edema that all too often complicates DKA, how to best adjust fluids and insulin during treatment, which kids can go home, which kids can go to the floor and which kids need to be transferred to a Pediatric ICU.
Episode 62 Diagnostic Decision Making in Emergency Medicine
This is Part 1 of EM Cases' series on Diagnostic Decision Making with Walter Himmel, Chris Hicks and David Dushenski discussing the intersection of evidence-based medicine, cognitive bias and systems issues to effect our diagnostic decision making in Emergency Medicine. In this episode we first discuss 5 strategies to help you master evidence-based diagnostic decision making to minimize diagnostic error, avoid over-testing and improve patient care including: 1. The incorporation of patients' values and clinical expertise into evidence-based decisions 2. Critically appraising diagnostic studies 3. Understanding that diagnostic tests are not perfect 4. Using the concept of test threshold to guide work-ups 5. Understanding that the predictive value of a test depends on the prevalence of disease We then go on to review some of the factors that play into the clinician’s and patient’s risk tolerance in a given clinical encounter, how this plays into shared decision making and the need to adjust our risk tolerance in critical situations. Finally, we present some strategies to prevent over-testing while improving patient care, patient flow and ethical practice.
Episode 61 Whistler’s Update in EM Conference 2015 Highlights Part 1
This EM Cases episode is Part 1 of The Highlights of The University of Toronto, Divisions of Emergency Medicine, Update in EM Conference from Whistler 2015 with Paul Hannam on Pearls and Pitfalls of Intraosseus Line Placement, Anil Chopra on who is at risk and how to prevent Contrast Induced Nephropathy, and Joel Yaphe on the Best of EM Literature from 2014, including reduction of TMJ dislocations, the TRISS trial (on transfusion threshold in sepsis), PEITHO study for thrombolysis in submassive PE, Co-trimoxazole and Sudden Death in Patients Receiving ACE inhibitors or ARBs, the effectiveness and safety of outpatient Tetracaine for corneal abraisons, chronic effects of shift work on cognition and much more...
Episode 60: Emergency Management of Hyponatremia
In this EM Cases episode Dr. Melanie Baimel and Dr. Ed Etchells discuss a simple and practical step-wise approach to the emergency management of hyponatremia: 1. Assess and treat neurologic emergencies related to hyponatremia with hypertonic saline 2. Defend the intravascular volume 3. Prevent further exacerbation of hyponatremia 4. Prevent rapid overcorrection 5. Ascertain a cause Dr. Etchells and Dr. Baimel answer questions such as: What are the indications for giving DDAVP in the emergency management of hyponatremia? What is a simple and practical approach to determining the cause of hyponatremia in the ED? How fast should we aim to correct hyponatremia? What is the best fluid for resuscitating the patient in shock who has a low serum sodium? Why is the management of the marathon runner with hyponatremia counter-intuitive? What strategies can we employ to minimize the risk of Osmotic Demyelination Syndrome (OSD) and cerebral edema in the emergency management of hyponatremia? and many more...
