Hippo ERcast March 2025

Monday Morning Quarterback

Case review in emergency medicine is as much about cognitive bias and peer support as technical critique. Retrospective outcome knowledge reliably distorts judgment, and informal debriefs can carry medicolegal risk if they sit outside protected quality-improvement processes. Reviewing ED Cases Well Retrospective bias trap: Hindsight bias makes missed alternatives look obvious once the outcome is known, so fair review starts by reconstructing the clinician’s decision point with only the information available at that moment. Protected versus discoverable review: Formal quality-improvement review may carry peer-review protections, while casual conversations about a bad outcome can be discoverable depending on state law. We get into that opening move in the episode. Clarify the review request: The first task is defining what the colleague wants: a quick curbside, a second set of eyes, a structured QI review, or simply space to debrief after a hard case. Support before technical advice: After an adverse outcome, many clinicians are looking first for a trusted listener rather than an immediate list of alternative decisions, a distinction that changes the entire tone of the conversation. Consultant-specific concerns: When feedback comes from a non-EM specialist, the actionable issue is often one small ED handoff or workflow detail rather than a broad failure in emergency care. Would you do differently: The WYHDSD question has been proposed as a screening tool for possible ED error, but most reviewed cases still fall within reasonable practice rather than clear deviation.

Navigating the Difficult Consultant Without Becoming a Drama Llama

Incivility during consultant interactions is not just unpleasant; it threatens patient safety, fuels burnout, and can distort clinical decision-making. A clean consult ask, neutral tone, and early escalation when care is obstructed are the core moves in difficult consultant conversations. Managing difficult consultant interactions Incivility as the real problem: A difficult consultant is best understood as incivility: repeated violations of respect that make clinicians hesitate to call in gray-zone cases and expose patients to avoidable risk. Lead with the need: Start with the bottom line and your specific ask rather than a long presentation; a one-line disposition or action request keeps the conversation clinically anchored. No apology framework: Do not apologize for making the consult call, because that instantly creates a subordinate power dynamic; gratitude works better than apology for preserving mutual respect. Pre-call mental reset: A brief internal de-escalation and mental rehearsal before dialing can keep you from reacting emotionally when pushback comes. We walk through that setup in the episode. Neutral mirroring technique: Paraphrase the consultant's position in plain language to slow escalation and expose the actual barrier, using a calm tone that clarifies without adding accusation. Recorded-line escalation: When consultant behavior is obstructing urgent care, call back on a recorded line and escalate to service leadership or administration if the risk is egregious. Why incivility matters clinically Patient safety spillover: Repeated rudeness changes clinician behavior: people delay or avoid calling for expert input, especially in borderline cases where specialty input would help most. Cognitive error effects: Low-intensity negative behavior is linked to worse work performance, including diagnostic error, procedural error, and more anchoring bias after exposure to rudeness. Burnout and wellness toll: Incivility does not stay on the phone; it accumulates as stress, de-energizes teams, and contributes to provider burnout in ways that are easy to normalize. Behavior worth reporting: Habitual incivility should be reported rather than absorbed as culture, because coaching, remediation, or administrative redirection may be needed to protect patients and staff.

Lit Matters #1: Which thrombolytic should I use for stroke patients, or does it matter?

Acute ischemic stroke thrombolysis appears equivalent with tenecteplase and alteplase in patients treated within 4.5 hours. The practical difference is workflow: tenecteplase is a single weight-based bolus, while alteplase requires a bolus plus infusion, and the decision still hinges on patient selection and bleeding risk. Stroke Thrombolytic Choice Noninferiority signal: In mild to moderate acute ischemic stroke, tenecteplase matched alteplase for excellent 90-day functional outcome, supporting either agent as a reasonable IV thrombolytic choice. Administration advantage: Tenecteplase has a clear bedside workflow edge because it is given as a one-time weight-based bolus, unlike alteplase’s bolus-then-infusion regimen. Study population specifics: The trial enrolled patients within 4.5 hours of symptom onset with NIHSS 1-25, with a median NIHSS of 6, making the results especially relevant to lower-severity stroke presentations. Bleeding comparison: Safety looked similar between agents, with symptomatic intracranial hemorrhage occurring in 9 patients in each group and overall intracranial bleeding rates staying close. Selection still matters: The key bedside issue is not just TNK versus tPA but who should get thrombolysis at all, especially given a number needed to harm around 12. We get into that risk-benefit framing in the episode.

High Risk, Low Prevalence: Spontaneous Cervical Artery Dissection

Spontaneous cervical artery dissection is an uncommon but important cause of stroke in younger adults, especially ages 35 to 53. Headache, neck pain, or facial pain plus a focal deficit, partial Horner syndrome, or recent minor neck trauma should push CTA head and neck high on the workup. Bedside Recognition of Cervical Artery Dissection Younger stroke phenotype: sCAD skews younger than typical ischemic stroke, with a mean age of 35 to 53, and accounts for up to one quarter of strokes in patients under 45. Pain plus neurologic warning signs: Headache is the most common symptom, but isolated pain is uncommon; think dissection when head, neck, or facial pain travels with focal deficits, cranial neuropathy, or Horner findings. Minor trauma association: A seemingly trivial inciting event matters here: over 40% of patients report sudden head or neck movement from coughing, sports, whiplash, or even neck cracking, and many barely remember it. Carotid versus vertebral clues: Carotid dissection classically causes anterior head or face pain with partial Horner syndrome, while vertebral dissection points more toward posterior headache, vertigo, ataxia, and brainstem symptoms. Multivessel disease possibility: Dissection may not stop at one vessel; up to 20% of patients have multiple sites involved, a useful reminder when the symptoms seem broader than a single vascular territory. We get into the bedside pattern recognition in the episode. Imaging and Initial Management CTA as first test: CTA of the head and neck is the diagnostic study of choice, with sensitivity and specificity both above 90%, making it the practical frontline test in the ED. MRI and MRA role: MRI and MRA also perform well for diagnosis, but real-world access and timing often make them second-line rather than the first imaging move in emergency care. Ultrasound limitations: Ultrasound can show an intimal flap, intramural hematoma, or flow abnormality, but limited visualization near the skull base means it cannot safely rule out sCAD. Neurology first call: Early specialist input matters because antiplatelet therapy and anticoagulation have broadly similar outcomes, but the choice hinges on stroke burden, vessel severity, and bleeding risk. Stroke and hemorrhage pathways: Thrombolysis is not automatically excluded in ischemic stroke from sCAD, while intracranial dissection carries a meaningful subarachnoid hemorrhage risk that shifts management fast. We walk through those fork-in-the-road decisions in the chapter. Medical therapy effect: For non-thrombolysis candidates, antithrombotic treatment is the core therapy and cuts embolic stroke risk from roughly 60% to under 4% in most patients.

Lit Matters #2: Ventilation in severe head trauma patients

Severe acute brain injury changes the usual ventilation tradeoffs: lung-protective settings that help ARDS may worsen outcomes when intracranial pressure and PaCO2 control are central. In intubated patients with TBI, SAH, intracerebral hemorrhage, or ischemic stroke without ARDS, the PROLABI trial favored more traditional ventilation over low tidal volume plus higher PEEP. Ventilation in Severe Brain Injury Different physiology problem: Severe brain injury is not routine ARDS physiology; small rises in PaCO2 can increase cerebral blood volume and intracranial pressure, making standard low-tidal-volume thinking less automatically safe. PROLABI patient population: The trial focused on intubated patients with acute severe brain injury without ARDS, including TBI, subarachnoid hemorrhage, intracerebral hemorrhage, and ischemic stroke with depressed consciousness. Headline ventilator contrast: The tested strategy compared low tidal volume under 6 mL/kg with PEEP 8 against more traditional ventilation over 8 mL/kg with PEEP 4, while both arms targeted normocapnia. Composite outcome signal: The primary 28-day composite of death, ventilator dependence, and ARDS was worse with lung-protective ventilation, a clinically meaningful signal that argues against one-size-fits-all practice. Mortality and disability concern: Mortality was 28.9% versus 15.1%, and 6-month Glasgow Outcome Scale results also favored traditional ventilation. We get into what this should change in the episode. Practice-changing caution: Early trial stoppage limits certainty, but the study still gives real pause before reflexively applying ARDS-style ventilation to every severe head trauma patient, especially outside established ARDS.

Palliative Care Pro-Tips

Goals-of-care conversations in the emergency department can prevent nonbeneficial intubation, CPR, and ICU care that lock patients into outcomes they would not have chosen. Cardiac arrest survival is limited, and many survivors have poor neurologic function, making plain-language discussion of CPR, ventilators, and acceptable quality of life essential. Emergency Department Goals of Care High-risk ED populations: Critically ill patients near intubation or arrest, those with advanced chronic disease, and patients with repeated admissions without benefit should trigger an early goals-of-care discussion. Interventions shape trajectory: Intubation and other critical care interventions can commit patients and families to a harsh hospital course, so the key question is whether that path matches the patient's goals. Plain-language framing: Avoid the term code status and talk instead about CPR and ventilators, because most patients do not understand the jargon and often overestimate what resuscitation can achieve. Outcome reality check: Only about 10-20% of patients survive cardiac arrest to discharge, and 30-60% of survivors have poor neurologic outcomes that may mean loss of independent living. Patient-defined line in sand: A useful anchor is asking what abilities matter so much that the patient cannot imagine living without them, which clarifies whether CPR could deliver an acceptable quality of life. Conversation setup matters: Sit down, normalize the discussion as routine care, and ask permission before going deeper; that small shift often gives patients and families more control in a chaotic moment. DNR Orders and Medically Futile Care Valid DNR confirmation: A DNR should be on a signed order sheet, but if the form is unavailable the patient's or surrogate's verbal confirmation still matters and should be verified carefully. Dynamic code decisions: Code status can change at any time, and even a prior DNR may be challenged during crisis, so clinicians need to revisit the patient's stated wishes rather than treat the order as static. Surrogate revocation nuance: If an obtunded patient has a prior DNR, a medical power of attorney or legal guardian may attempt to revoke it, and the driver is often fear rather than a true change in values. Unreasonable request limits: Requests like CPR without ventilation may be medically unrealistic, and physicians can refuse interventions judged futile if they clearly document the specific treatment and rationale. Two-attending futility standard: When declaring medical futility, documenting the decision with two attending physicians strengthens the record and helps align the plan with defensible emergency practice. Reversible supports distinction: DNR does not automatically mean no treatment; central lines and vasopressors are often appropriate because they are more readily reversible than CPR or intubation.

Lit Matters #3: Should we regularly check troponins in patients with SVT?

Supraventricular tachycardia often produces symptoms that overlap with acute coronary syndrome, but SVT itself is not usually an ischemic arrhythmia. Troponin elevation is common in SVT, especially with high-sensitivity assays, yet current evidence does not link that finding to meaningful increases in CAD or major adverse cardiac events. Troponin Testing in SVT Common biomarker elevation: Troponin rises are frequent in SVT, with a pooled prevalence of 46%, so a positive result alone has poor specificity for acute coronary syndrome in this rhythm. Low MACE signal: Major adverse cardiac events were uncommon overall at about 6%, supporting the idea that uncomplicated SVT carries a low baseline ischemic event rate rather than a troponin-driven one. Poor prediction of CAD: Elevated troponin in SVT was not associated with subsequent CAD or MACE, making routine testing a low-yield strategy unless other cardiovascular risk factors change the picture. High-sensitivity assay effect: Studies using high-sensitivity troponin were more likely to detect elevations, a reminder that newer assays amplify biologic signal without necessarily improving clinical decision-making in SVT. Testing downstream consequences: Additional cardiac testing was infrequent and only occasionally clinically significant, a useful point when deciding whether a positive troponin should trigger more workup. We get into the practical ordering implications in the episode.