Emergency Medicine Cases

In a previous Best Case Ever, 'Thinking Outside the Abdominal Box', Dr. Brian Steinhart reviewed some important can't-miss-diagnoses that can present elusively with abdominal pain. In this Carr's Cases Series on Inferior MI Presenting with Abdominal Pain, we continue in the theme of 'Thinking Outside the Abdominal Box' with David Carr explaining how he figured out that a man presenting with classic biliary colic was diagnosed with an inferior MI with right ventricular extension.

Dr. Melanie Baimel and Dr. Ed Etchells discuss the emergency management of hyponatremia, including assessing and treating neurologic emergencies, defending intravascular volume, preventing exacerbation, and ascertaining the cause. They answer questions about giving DDAVP, determining the cause, correcting hyponatremia, fluid resuscitation, managing marathon runners, and minimizing the risk of Osmotic Demyelination Syndrome (ODS) and cerebral edema.

Rapid over-correction of Hyponatremia can have devastating consequences: for one, osmotic demyelination syndrome (ODS) can result in destruction of the pons and a locked-in state. We don't see ODS very much as it's onset is delayed and usually sets in after the patient is admitted to hospital (or worse, sent home). Nonetheless, we need to know how to manage Hyponatremia in the ED so that we prevent ODS from ever happening. In this Best Case Ever, Dr. Melanie Baimel describes the case of a young woman who came in to the ED after drinking alcohol and taking Ecstasy, wanted to leave AMA after her Hyponatremia had inadvertently been corrected too rapidly, and the conundrum that ensues. In the upcoming episode, Dr. Baimel and the first ever Internal Medicine specialist on EM Cases, Dr. Ed Etchels, discuss a rational step-wise approach to managing Hyponatremia, tailored for the EM practitioner; when you might consider giving DDAVP in the ED, the best way to correct Hyponatremia, how to manage the patient who's Hyponatremia has been corrected too quickly, and an easy approach to the differential diagnosis. Get a sneak peak at the algorithm that will be explained and reviewed in the upcoming episode...... [wpfilebase tag=file id=577 tpl=emc-play /] [wpfilebase tag=file id=578 tpl=emc-mp3 /]

In response to Episode 59 with Dr. Sanjay Mehta and Dr. Dennis Scolnik on the emergency department diagnosis and management of Bronchiolitis, Dr. Amy Plint, one of Canada's most prominent researchers in Bronchiolitis and the Chair of Pediatric Emergency Research Canada, tells her practical approach to choosing medications in the emergency department, the take home message from her landmark 2009 NEJM study on the use of nebulized epinephrine and dexamethasone for treating Bronchiolitis, and the future of Bronchiolitis research.

Exploring the diagnosis and management of Bronchiolitis in children, with a focus on predicting severity and proper treatment practices. Highlighting challenges in treatment modalities, the use of medications like beta agonists and epinephrine, and the benefits of high-flow oxygen therapy. Discussing the importance of clinical judgment over oxygen saturation levels in discharging children, and evaluating admission criteria for severe cases.

David Carr discusses his top 10 pearls on endocarditis and blood culture interpretation in this Carr's Cases Best Case Ever on EM Cases - Endocarditis and Blood Culture Interpretation. [wpfilebase tag=file id=560 tpl=emc-play /] [wpfilebase tag=file id=561 tpl=emc-mp3 /]

In part 2 of our round-table discussion on EM Cases with sports medicine guru Dr. Ivy Cheng and orthopedic surgeon Dr. Hossein Mehdian we elucidate some key commonly missed uncommon orthopedic injuries that if mismanaged, carry significant long term morbidity. Injuries of the tendons and ligaments are often overlooked by emergency providers as relatively benign injuries and generally are not well understood. Syndesmosis Injuries typically occur in impact sports. They are missed in about 20% of cases, as x-rays findings are often subtle or absent. The mechanism, physical exam findings, such as the Hopkin's Test, and associated injuries are important to understand to help make the diagnosis and provide appropriate ED care. Distal Biceps Tendon Rupture is almost exclusively a male injury and occurs in a younger age group compared to the Proximal Biceps Rupture. It is important to distinguish these injuries as their management and outcomes are different. The mechanism and physical exam findings of Distal Biceps Tendon Rupture, such as the Hook Test, are key in this respect. Quadriceps Tendon Rupture is often misdiagnosed as a simple ‘knee sprain’, but should be consideration for surgical intervention. Quadriceps tendon ruptures are more commonly seen in patients older than 40 years and are more common than patella tendon ruptures which are more commonly seen in patients under 40 years of age. Interestingly, up to 1/3 of patients present with bilateral quadriceps tendon ruptures, so comparing to the contralateral knee may be misleading. There is a spectrum of knee extensor injuries that should be understood in order to provide proper care, with the Straight-Leg-Raise Test being abnormal in all of them. This is of the most important physical exam maneuvers to perform on every ED patient with a knee injury. The x-ray findings of these injuries may be subtle or absent, and proper immobilization of these injuries is important to prevent recoil of the tendon. Patients with calf pain and Gastrocnemius Tears are often misdiagnosed as having a DVT. In fact, one small study showed that gastrocnemius tears were misattributed to DVT in 29% of patients. This confusion occurs because sometimes patients who suffer a gastrocnemius tear report a prodrome of calf tightness several days before the injury, suggesting a potential chronic predisposition. With a good history and physical, and POCUS if you’re skilled at it, needless work-ups for DVT can be avoided. For well thought out approaches, pearls and pitfalls, to these 4 Commonly Missed Uncommon Orthopedic Injuries, listen to the podcast and read the rest of this blog post....

On this EM Cases Best Case Ever, Andrew Sloas, the brains behinds the fabulous PEM-ED podcast tells the tale of a pericardiocentesis gone bad and what he learned from it. Emergency pericardicentesis can be life saving, but it also carries risks. Dr. Sloas reviews the steps to take to ensure that the pericardiocentesis needle is the the correct place to minimize the risk of intubating the right ventricle of the heart. A discussion of errors of omission and ones of commission follows.... [wpfilebase tag=file id=540 tpl=emc-play /] [wpfilebase tag=file id=541 tpl=emc-mp3 /]

In this bonus EM Cases podcast, The Stiell Sessions 2, we have Dr. Ian Stiell discussing an update in Atrial Fibrillation 2014 management including the age-old question of rate control vs rhythm control, the new CHADS-65 algorithm for oral anticogulant therapy, the need to initiate anticoagulant therapy in the ED, the more aggressive use of the Ottawa Aggressive Protocol, the dangers of attempting to cardiovert unstable patients who are in permanent Atrial Fibrillation, the new 150 rule to help determine the likelihood of successful cardioversion and much more. Thanks to all the listeners who did the survey on clinical decision rules and the post-listen survey.

There are hundreds of clinical decision rules and risk scales published in the medical literature, some more widely adopted than others. Ian Stiell, the father of clinical decision rules, shares with us his views and experiences gained from co-creating some of the most influential CDRs and risk scales to date. He explains the criteria for developing a CDR, the steps to developing a valid CDR, how best to apply CDRs and risk scales to clinical practice, and the hot-off the-press new Ottawa COPD Risk Score and Ottawa Heart Failure Risk Score for helping you with disposition decisions. It turns out that in Canada, we discharge about two thirds of the acute decompensated heart failure patients that we see in the ED, while the US almost all patients with decompensated heart failure are admitted to hospital. Dr. Stiell's new risk scores may help physicians in Canada make safer disposition decisions while help physicians in the US avoid unnecessary admissions.