Hippo ERcast June 2024

Intro: Does Working While on Vacation Contribute to Burnout?

Working during vacation is linked to physician burnout, and emergency medicine physicians take fewer vacation days than most specialties. The biggest signal in the JAMA Network Open survey was not just time off, but whether clinicians kept doing meaningful work while away. Vacation, burnout, and emergency medicine Burnout signal on vacation: The strongest association with burnout was doing more than 30 minutes of work per vacation day, making true separation from inbox and patient tasks more important than many clinicians admit. Emergency medicine vacation gap: Emergency medicine stood out for taking fewer days off than other specialties, with the highest share taking 5 days or fewer and the lowest share taking more than 15 days. Working while away: Across specialties, 70% of physicians did some work while on vacation, showing how often time off becomes partial coverage rather than actual recovery. We get into the practical implications in the episode. Meaningful time-off effect: More than 15 days of vacation was associated with better outcomes, reinforcing that wellness is not just about isolated long weekends but protected time fully away from work. Practical off-loading strategies: Simple systems matter: clear charts before leaving, turn off work notifications, and arrange reciprocal coverage so administrative and teaching obligations do not follow you onto vacation.

Ketamine Only Intubation, Good or Bad?

Rapid sequence intubation is not always the safest default when laryngoscopy may fail or physiology is fragile. Ketamine-only breathing intubation sits between topicalized awake intubation and RSI, preserving spontaneous respirations while trading away some intubating conditions and certainty. Awake Intubation Decision Framework Three awake techniques: ED awake intubation now falls into three buckets: sedative-facilitated intubation, topicalized awake intubation, and ketamine-only breathing intubation, each balancing cooperation, safety, and ease differently. Paralysis paradox: When you fear laryngoscopy may fail, avoiding paralysis feels safer, yet paralysis often improves the view and first-pass conditions; that tension is the core airway decision we unpack in the episode. Video laryngoscopy shift: With video laryngoscopy, obtaining a view is less often the limiting step than it was with direct laryngoscopy, so the incremental benefit of paralytics may be smaller in some patients. Difficult airway indications: Awake strategies matter most in anatomically difficult and physiologically difficult airways, where preserving spontaneous breathing can be more valuable than perfect intubating conditions. Topicalized awake advantages: Topicalized awake intubation is the safest option all else equal because the patient stays awake and breathing, and lidocaine-based topical anesthesia avoids hemodynamic hits from induction drugs. Ketamine Only Breathing Intubation KOBI sweet spot: Ketamine-only breathing intubation is built for patients who need dissociation but may not tolerate apnea, offering a practical bridge when full topicalized awake intubation is unrealistic in the ED. Core tradeoff: KOBI preserves spontaneous respirations and patient tolerance of laryngoscopy, but it is not as safe as true topicalized awake intubation and does not create the same conditions as RSI. Headline ketamine dose: Dissociative ketamine is the key requirement, with many clinicians targeting 1.5 to 2 mg/kg IV to ensure complete dissociation rather than drifting into inadequate sedation. Prepared paralysis backup: Ketamine can trigger jaw rigidity or laryngospasm, so a paralytic should be drawn up and immediately available before starting; the rescue sequencing is worth hearing in the chapter. Topicalization adjunct: Adding local anesthetic topicalization to ketamine may improve tolerance and may reduce vomiting risk when you have the bandwidth, a practical nuance we get into on the show. Evidence caution: KOBI is a useful airway tool, but the evidence base remains limited and contested, making patient selection and operator readiness more important than enthusiasm for the technique.

Lit Matters 1: Unpacking IV Antihypertensives in Neuro Emergencies

Acute blood pressure control in neurovascular emergencies is about reaching target quickly without overshoot that could worsen cerebral ischemia. Across ischemic stroke, intracerebral hemorrhage, subarachnoid hemorrhage, TBI, and hypertensive encephalopathy, current comparative evidence does not identify a single best IV antihypertensive. IV Antihypertensives in Neuro Emergencies Evidence quality limits certainty: The comparative literature is thin and biased: only 10 studies met review criteria, with just 2 randomized trials, so claims of superiority should stay modest. Nicardipine over labetalol: Nicardipine generally reached blood pressure goals faster than labetalol and often needed fewer rescue agents, with steadier control than intermittent bolus strategies. Clevidipine comparison signals: Clevidipine sometimes trended toward faster control than nicardipine, but the differences were not statistically convincing and time in goal range looked similar. Nitroprusside practical concern: Nitroprusside remains the least attractive neurocritical option because of concern for increased ICP and reduced cerebral perfusion pressure, despite inconsistent mortality data. Titratable drip advantage: Blood pressure variability is easier to manage with titratable infusions like nicardipine or clevidipine than with bolus labetalol. We get into the bedside why in the episode. Choose familiarity over theory: No agent clearly wins on hard outcomes, so the practical move is to standardize around a drug your team knows well; nicardipine is a common favorite for cost and ease.

Tabas Talks: Navigating A Fib With Soft Pressures

Atrial fibrillation with soft blood pressure is usually a hemodynamic problem, not a routine rate-control problem. When hypotension overlaps with pulmonary edema or heart failure, the key decision is whether the patient is volume depleted, needs immediate electrical cardioversion, or should be anticoagulated now. Atrial fibrillation with soft pressures Volume status first: Soft-pressure AF is safer to approach when volume depletion is obvious; a modest fluid trial can create room for rate control, especially in dehydrated patients such as alcohol-related presentations. Pulmonary edema warning: Plethoric IVC or chest x-ray pulmonary edema argues against routine diltiazem-or-beta-blocker reflexes and pushes management toward electrical cardioversion instead. Heart failure physiology: AF with heart failure and hypotension is best treated by restoring sinus rhythm, because electrical cardioversion slows the rate and brings back atrial kick to improve cardiac output. Sedation before shock: Ketamine and etomidate are practical pre-cardioversion sedatives in this setting, while chemical cardioversion with procainamide can worsen hypotension. Recurrent post-shock AF: If cardioversion fails or AF immediately recurs, amiodarone 150 mg over 10 minutes or IV digoxin are the key rescue options, and we get into when each makes more sense in the episode. Anticoagulation and cardioversion decisions Immediate anticoagulation group: Critically ill patients and those with soft pressures should generally receive anticoagulation early, with LMWH favored upfront in admitted patients to reduce handoff failure. CHF embolic risk: Atrial fibrillation plus congestive heart failure carries especially high embolic risk, making anticoagulation the default unless a true contraindication is present. CHADS-65 trigger: Two or more CHADS-65 risk factors—hypertension, age over 65, diabetes, CHF, or prior stroke or embolism—support anticoagulation now and continued indefinitely. Cardioversion without anticoagulation: A young patient with no CHADS-65 risk factors can be cardioverted without anticoagulation if onset is clearly recent or TEE shows no atrial clot. Timing nuance for recent AF: Recent-onset atrial fibrillation is not automatically a shock-first problem because many patients convert spontaneously. We walk through when waiting is smarter in the chapter.

Lit Matters 2: Anticoagulation and Beta-Blockers for Blunt Aortic Injury?

Blunt traumatic aortic injury is a high-mortality trauma diagnosis, and thoracic endovascular aortic repair has largely replaced open repair for many patients. Current evidence increasingly favors delayed TEVAR over repair within 24 hours, with aggressive blood pressure and impulse control as the key bridge from the ED. Timing and Medical Stabilization in BTAI Delayed TEVAR signal: Delayed thoracic endovascular repair after blunt aortic injury was associated with lower 30-day mortality than repair within 24 hours, a practice-changing signal from the available observational literature. Early repair tradeoff: Early TEVAR shortened ICU stay by about 3 days, but that speed advantage did not translate into better short-term survival and may come at a mortality cost. Complication profile: Delayed repair did not show higher rates of stroke, DVT, sepsis, or renal failure, which supports taking time to stabilize the patient before definitive aortic intervention. Impulse control bridge: BTAI behaves like a shear-stress problem, so ED management hinges on tight blood pressure control and beta-blockade before the graft ever goes in. We get into the bedside rationale in the episode. Anticoagulation deviation: Pre-procedural anticoagulation may be safe in selected blunt aortic injury patients, a notable departure from usual trauma reflexes and one of the more nuanced decisions around TEVAR timing. Evidence limits: The mortality advantage for delayed TEVAR comes from seven nonrandomized studies, so the signal is compelling but still vulnerable to selection bias and confounding by injury severity.

Decoding Arrhythmias in Kids

Pediatric supraventricular tachycardia is the most common arrhythmia in children and often presents with a strikingly regular rate above 200/min in a child who looks better than expected. The key ED challenge is separating true SVT from sinus tachycardia, then escalating from vagal maneuvers to adenosine and synchronized cardioversion when needed. Pediatric SVT Recognition and Treatment Regular fixed-rate tachycardia: Pediatric SVT usually shows a very regular rhythm with rates often above 200/min, sometimes over 220/min, and the child may appear surprisingly well despite the number. Sinus versus SVT clue: Rate variability is a useful bedside discriminator: sinus tachycardia speeds up and slows down with crying or distress, while SVT tends to stay locked at one rate. First-line vagal maneuvers: Vagal maneuvers are first-line therapy and work in about 50% of cases, with age-specific techniques ranging from ice to the face in infants to syringe Valsalva in older kids. Adenosine first drug: Adenosine is the usual first medication after failed vagal maneuvers, with beta-blockers, procainamide, and amiodarone as escalation options. We get into the practical sequencing in the episode. Verapamil and procainamide pearls: Verapamil should be avoided in children under 1 year, while procainamide is a useful option when WPW or antidromic AVRT is on the table and pediatric hypotension is less of a problem than in adults. Synchronized cardioversion threshold: Unstable patients or medication failures need synchronized cardioversion starting at 0.5 to 1 J/kg, with sedation choices that favor etomidate or midazolam and avoid ketamine-related tachycardia.

Heme Potpourri: Superficial Thrombophlebitis, Iron Deficiency, and Estrogen

Estrogen is a consistent venous thromboembolism risk multiplier, increasing clot risk about threefold across pills, patches, and vaginal rings. Superficial thrombophlebitis is not always benign, and iron deficiency treatment often starts before the workup is complete when symptoms and follow-up make the diagnosis likely. Estrogen and Clot Risk Uniform VTE signal: All estrogen formulations and doses carry a similar venous thromboembolism signal, with an approximately threefold increase in clot risk rather than a meaningful low-dose or transdermal exemption. Procoagulant mechanism: Estrogen shifts hemostasis toward thrombosis by lowering natural anticoagulants such as protein S and increasing procoagulants like factor VIII, plus likely direct vascular effects. Gender-affirming hormone nuance: Estrogen in gender-affirming therapy also raises clot risk, while testosterone itself is not linked to VTE; hematocrit elevation is the lab red flag worth remembering. ED relevance beyond OB-GYN: Hormone exposure matters in any chest pain, leg swelling, or PE workup because it changes pretest thinking more often than many emergency clinicians remember. We get into the practical framing in the episode. Superficial Thrombophlebitis Management Inflammatory clot biology: Superficial thrombophlebitis is usually an inflammatory venous process triggered by trauma or compression, not just a nuisance vein finding, which explains why symptoms can outpace appearance. Low-risk local treatment: A small, distal, mildly symptomatic clot is usually managed conservatively with warm compresses and NSAIDs rather than full anticoagulation. High-risk extension pattern: Clots larger than 5 cm or near the proximal greater saphenous vein carry meaningful DVT extension risk and deserve prophylactic-intensity anticoagulation rather than reassurance alone. LMWH first-line choice: Enoxaparin 40 mg subcutaneously daily is the preferred first-line option, helped by both anticoagulant and anti-inflammatory effects, with oral alternatives reserved for selected cases. Testing you can skip: Thrombophilia workups are no longer indicated in acute thrombosis, and baseline labs are often unnecessary before starting short-course anticoagulation in otherwise healthy young adults. We cover the exceptions in the chapter. Iron Deficiency and Iron Infusion Treat before labs return: Symptomatic iron deficiency can be treated before results come back when the story fits, especially in menstruating patients where iron deficiency is common and delay adds little value. Oral iron basics: Ferrous sulfate 324 mg daily is a standard starting option, and absorption improves with meat protein or 500 mg vitamin C while tea and coffee reduce uptake. Expected early response: Symptoms often begin improving within about a week, and hemoglobin should rise by roughly 1 g/dL after two weeks if replacement is working and the diagnosis is right. When IV iron helps: IV iron is the move for oral intolerance, inflammatory bowel disease, marked symptoms, or severe anemia, and one total-dose infusion can often replace a long oral course. Infusion reaction reality: True IV iron allergy is rare; most reactions are complement-mediated infusion effects, and diphenhydramine is the antihistamine to avoid because it can worsen the event. We walk through the bedside response in the episode.

High Risk, Low Prevalence: Lemiere's Syndrome

Lemierre’s syndrome is a post-pharyngitis septic thrombophlebitis of the internal jugular vein that can seed septic emboli far beyond the neck. In a toxic patient with sore throat plus chest, joint, abdominal, or neurologic symptoms, this rare diagnosis belongs high on the differential. Recognizing Lemierre’s Syndrome Classic disease triad: Lemierre’s syndrome classically links recent pharyngitis, internal jugular vein thrombosis, and septic emboli with metastatic abscess formation, a pattern that carries a reported mortality around 2% to 18%. Typical patient profile: The highest incidence is in otherwise healthy adolescents and young adults, especially ages 16 to 24, often after pharyngitis, mononucleosis, or streptococcal throat infection. Red flag symptom pattern: A toxic-appearing patient with sore throat and symptoms in a second body region should trigger concern, because pulmonary, joint, abdominal, cardiac, CNS, and ocular spread are all possible. We get into the bedside red flags in the episode. Pulmonary embolic burden: The lungs are the most common destination for septic emboli, producing cavitary lesions, effusions, empyema, or infiltrates, but every perfused organ system is potentially at risk. Neck exam limitations: Unilateral neck tenderness, swelling, erythema, or induration support the diagnosis, yet the oropharyngeal exam may be surprisingly normal despite significant deep neck infection. ED Workup and Initial Management Most likely pathogen: Fusobacterium necrophorum, an anaerobic gram-negative rod from the oral cavity, causes about 50% to 80% of cases, though streptococci, staphylococci, and anaerobic polymicrobial infection also matter. Highest-yield microbiology tests: CBC, BMP, LFTs, and lactate are nonspecific, but blood and throat cultures are the key studies for source identification and antibiotic targeting; blood cultures are positive in about 80% of cases. Gold standard neck imaging: CT neck with IV contrast is the first-line study for detecting internal jugular thrombus or deep neck abscess, with extension to chest, head, or abdomen when symptoms suggest metastatic spread. Chest imaging caution: Chest x-ray is reasonable because pulmonary septic emboli are common, but a normal film does not exclude thoracic disease; about 20% of patients with pulmonary involvement still have a normal CXR. Empiric antibiotic frame: Initial therapy must cover Fusobacterium, Bacteroides, and oral streptococci, with piperacillin-tazobactam, a carbapenem, or ceftriaxone plus metronidazole as core options. We walk through the treatment nuances in the chapter. Anticoagulation controversy: Anticoagulation remains debated rather than routine, generally entering the conversation when thrombus progresses or fever and symptoms persist despite antibiotics, with multidisciplinary input recommended.

Lit Matters 3: Aortic Dissection: Surgery, Transfer, or Medical Management?

Acute aortic dissection management hinges on anatomy, malperfusion, and immediate hemodynamic control. Type A dissection is a surgical disease with transfer to a comprehensive aortic center often favored when feasible, while Type B dissection starts with anti-impulse therapy and escalates to TEVAR when features become complicated. Type A and Type B Dissection Immediate anti-impulse therapy: Beta-blockade, blood pressure control, and aggressive pain treatment come first in both Type A and Type B dissection because shear stress reduction is the earliest lifesaving move. Type A surgical priority: Ascending aortic dissection is treated with urgent surgery, with medical therapy serving as stabilization rather than definitive care; medical management alone carries markedly higher in-hospital mortality. Comprehensive center transfer: When cardiac surgery is not available, transfer to a high-volume aortic center can improve outcomes even with transport delays, with an absolute mortality reduction of about 7%. We get into the transfer nuance in the episode. Complicated Type B markers: Type B dissection turns high risk when organ malperfusion appears or the anatomy is unfavorable, especially a greater-curvature distal arch tear or an enlarged descending aorta. Uncomplicated Type B approach: In uncomplicated Type B dissection, optimal medical therapy with alpha-beta blockade and impulse control remains first-line; early TEVAR has not shown a two-year mortality benefit here. TEVAR for complicated Type B: For hyperacute, acute, or subacute complicated Type B dissection, TEVAR is the preferred intervention and outperforms open repair on short-term mortality, with timing details still unsettled. We walk through that uncertainty in the chapter.