Ketamine During OAT Initiation: Can It Help in the Fentanyl Era?

Ketamine During OAT Initiation: Can It Help in the Fentanyl Era?

Ketamine is best known for its roles in analgesia, sedation, and depression, but could it also help patients navigate the most challenging phase of opioid agonist therapy initiation in the fentanyl era? In this episode, we explore the emerging science behind ketamine as an adjunctive treatment for opioid withdrawal and OAT initiation, including its potential effects on NMDA receptors, opioid tolerance, and receptor signaling. We review the latest clinical evidence, from case reports of refractory withdrawal to early studies suggesting improved retention in treatment through rapid relief of depression and withdrawal distress. We'll also unpack the fascinating biology of beta-arrestin, receptor internalization, and whether ketamine may help improve opioid responsiveness by rebalancing some of the neurobiological changes associated with chronic fentanyl exposure. Join us as we separate promise from proof and discuss where ketamine may fit and where it may not in the future of addiction care.

Time Is Blood: Why Early TXA Saves Lives in Trauma

In this episode, we explore the race against time in trauma care and why every minute matters when treating life-threatening bleeding. Drawing on evidence from major clinical trials and meta-analyses, we examine how tranexamic acid (TXA) can dramatically improve survival when administered as early as possible after injury. You'll learn why the greatest benefits occur within the first hour, why effectiveness begins to decline after 90 minutes, and how even short delays can significantly reduce a patient's chance of survival. We also discuss emerging evidence suggesting that rapid treatment may be more important than where the treatment is delivered. Whether you're a healthcare professional, student, or simply interested in emergency medicine, this episode highlights how timely intervention can save lives in trauma, hemorrhagic shock, and traumatic brain injury.

Blood Pressure Management in Acute Intracerebral Hemorrhage

How low should you go when lowering blood pressure in acute intracerebral hemorrhage, and can treating too aggressively actually cause harm? In this episode, we explore the pathophysiology of ICH, including why spontaneous hemorrhage lacks a true ischemic penumbra and how perihematomal benign oligemia supports the safety of blood pressure reduction. We review the landmark INTERACT-2 and ATACH-II trials, along with the newer INTERACT-3 and INTERACT-4 studies, to uncover how the evidence has shaped modern practice and reinforced the lesson that lower is not always better. We discuss current guideline recommendations, including the shift toward a systolic blood pressure target of 130 to 150 mmHg and the importance of minimizing blood pressure variability. Finally, we compare commonly used agents such as nicardipine and clevidipine and revisit the longstanding controversy surrounding hydralazine and its purported effects on intracranial pressure and hematoma expansion.

Clinical Management of Toxicological Seizures

In toxicology-induced status epilepticus, the clock starts ticking the moment first-line benzodiazepines fail. In this episode, we dive into the evolving evidence behind second-line therapies for benzodiazepine-refractory seizures, exploring why phenobarbital remains the best-supported option based on pharmacologic principles and animal data, while propofol emerges as a powerful rescue therapy in intubated patients. We also unpack the growing interest in levetiracetam, a medication praised for its favorable safety profile and minimal cardiorespiratory effects, but whose effectiveness in toxicologic seizures remains uncertain, particularly in stimulant-related cases highlighted by the ESETT subgroup analysis. Along the way, we examine why older agents like phenytoin may have little to no role in poisoned patients despite their historic use in seizure management. Through real-world clinical dilemmas, pharmacology insights, and emerging research, we explore how emergency clinicians navigate the race to stop seizures before irreversible neurological injury occurs. Whether you’re passionate about emergency medicine, toxicology, critical care, or neuropharmacology, this episode delivers a fascinating look at one of medicine’s highest-stakes treatment decisions.

Tenecteplase vs Alteplase: The Evolving Standard for Ischemic Stroke

Stroke thrombolysis is rapidly evolving and tenecteplase is emerging as one of the most exciting developments in acute ischemic stroke care. In this episode, we explore how a simple change from a one-hour infusion to a single IV bolus could transform stroke treatment workflows, improve transfer logistics, and potentially enhance early reperfusion in some patients. We unpack the science behind tenecteplase, review the landmark trials that challenged alteplase’s decades-long dominance, and discuss why clinicians around the world are paying close attention. From breakthrough studies in large vessel occlusion to major safety and non-inferiority trials, this episode highlights the evidence shaping modern stroke practice. This episode offers a practical and engaging overview of one of the biggest shifts in contemporary stroke care.